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Items where Author is "Haas, Christian"

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Article
Maaß, N. , Kaleschke, L. , Tian-Kunze, X. , Mäkynen, M. , Drusch, M. , Krumpen, T. , Hendricks, S. , Lensu, M. , Haapala, J. and Haas, C. (2015)
Validation of SMOS sea ice thickness retrieval in the northern Baltic Sea ,
Tellus Series A-Dynamic Meteorology and Oceanography, 67 (24617) .
doi:10.3402/tellusa.v67.24617 , hdl:10013/epic.44983

Article
Price, D. , Beckers, J. M. , Ricker, R. , Kurtz, N. , Rack, W. , Haas, C. , Helm, V. , Hendricks, S. , Leonard, G. and Langhorn, P. , Gateway Antarctica, University of Canterbury, Christchurch, New Zealand, Department of Earth & Atmospheric Sciences, University of Alberta, Edmonton, Alberta, Canada, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany, Cryospheric Sciences Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USA, Department of Earth, Space Science and Engineering, York University, Toronto, Ontario, Canada, School of Surveying, University of Otago, Dunedin, New Zealand, Department of Physics, University of Otago, Dunedin, New Zealand (2015)
Evaluation of CryoSat-2 derived sea-ice freeboard over fast ice in McMurdo Sound, Antarctica ,
Journal of Glaciology, 61 (226), pp. 285-300 .
doi:10.3189/2015JoG14J157 , hdl:10013/epic.45308

Article
Hatam, I. , Charchuk, R. , Lange, B. , Beckers, J. , Haas, C. and Lanoil, B. (2014)
Distinct bacterial assemblages reside at different depths in Arctic multiyear sea ice ,
FEMS Microbiology Ecology, pp. 1-11 .
doi:10.1111/1574-6941.12377 , hdl:10013/epic.45127

Article
Renner, A. H. H. , Gerland, S. , Haas, C. , Spreen, G. , Beckers, J. F. , Hansen, E. , Nicolaus, M. and Goodwin, H. (2014)
Evidence of Arctic sea ice thinning from direct observations ,
Geophysical Research Letters, 41 (14), pp. 5029-5036 .
doi:10.1002/2014gl060369 , hdl:10013/epic.44376
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Willmes, S. , Nicolaus, M. and Haas, C. (2014)
The microwave emissivity variability of snow covered first-year sea ice from late winter to early summer: a model study ,
The Cryosphere, 8 (3), pp. 891-904 .
doi:10.5194/Tc-8-891-2014 , hdl:10013/epic.44378
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Lindsay, R. , Haas, C. , Hendricks, S. , Hunkeler, P. , Kurtz, N. , Paden, J. , Panzer, B. , Sonntag, J. , Yungel, J. and Zhang, J. (2013)
Seasonal forecasts of Arctic sea ice initialized with observations of ice thickness ,
Geophysical Research Letters, 39 .
doi:10.1029/2012GL053576 , hdl:10013/epic.42225
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Laxon, S. W. , Giles, K. A. , Ridout, A. L. , Wingham, D. J. , Willatt, R. , Cullen, R. , Kwok, R. , Schweiger, A. , Zhang, J. , Haas, C. , Hendricks, S. , Krishfield, R. , Kurtz, N. , Farrell, S. and Davidson, M. (2013)
CryoSat‐2 estimates of Arctic sea ice thickness and volume ,
Geophysical Research Letters, 40 (4), pp. 732-737 .
doi:10.1002/grl.50193 , hdl:10013/epic.42233

Article
Renner, A. , Hendricks, S. , Gerland, S. , Beckers, J. M. , Haas, C. and Krumpen, T. (2013)
Large-scale ice thickness distribution of first-year sea ice in spring and summer north of Svalbard ,
Annals of Glaciology, 54 (62) .
doi:10.3189/2013AoG62A146 , hdl:10013/epic.40507
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Rabenstein, L. , Krumpen, T. , Hendricks, S. , Koeberle, C. , Haas, C. and Hoelemann, J. A. (2013)
A combined approach of remote sensing and airborne electromagnetics to determine the volume of polynya sea ice in the Laptev Sea ,
The Cryosphere, 7 , pp. 947-959 .
doi:10.5194/tc-7-947-2013 , hdl:10013/epic.41876
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Herber, A. , Haas, C. , Stone, R. S. , Bottenheim, J. W. , Peter , L. , Li, S. M. , Staebler, R. , Strapp, J. W. and Dethloff, K. (2012)
Regular Airborne Surveys of Arctic Sea Ice and Atmosphere ,
EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION, 93 (4), pp. 41-42 .
hdl:10013/epic.38685
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Tan, B. , Li, Z. , Lu, P. , Haas, C. and Nicolaus, M. (2012)
Morphology of sea ice pressure ridges in the northwestern Weddell Sea in winter ,
Journal of Geophysical Research-Oceans .
doi:10.1029/2011JC007800 , hdl:10013/epic.42223
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Lampert, A. , Maturilli, M. , Ritter, C. , Hoffmann, A. , Stock, M. , Herber, A. , Birnbaum, G. , Neuber, R. , Dethloff, K. , Orgis, T. , Stone, R. S. , Brauner, R. , Kässbohrer, J. , Haas, C. , Makshtas, A. , Sokolov, V. and Liu, P. (2012)
The Spring-Time Boundary Layer in the Central Arctic Observed during PAMARCMiP 2009 ,
Atmosphere, 3 (3), pp. 320-351 .
doi:10.3390/atmos3030320 , hdl:10013/epic.39872
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Haas, C. , Le Goff, H. , Audurain, S. , Perovich, D. and Haapala, J. (2011)
Comparison of seasonal sea-ice thickness change in the Transpolar Drift observed by local ice mass-balance observations and floe-scale EM surveys ,
Annals of Glaciology, 52 (57), pp. 97-102 .
hdl:10013/epic.36405
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Nicolaus, M. , Haas, C. and Willmes, S. (2011)
Correction to "Evolution of first- and second-year snow properties on sea ice in the Weddell Sea during spring-summer transition (vol 114, D17109, 2009)" ,
Journal of Geophysical Research-Atmospheres .
doi:10.1029/2011jd016116 , hdl:10013/epic.42221
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Krumpen, T. , Haas, C. , Hendricks, S. , Hoelemann, A. J. , Kalmbach, D. and Gerdes, R. (2011)
HELIOS, a nadir-looking sea ice monitoring camera ,
Cold Region Science and Technology, 65 (3), pp. 308-313 .
doi:10.1016/j.coldregions.2010.11.007 , hdl:10013/epic.36326

Article
Willmes, S. , Haas, C. and Nicolaus, M. (2011)
High radar-backscatter regions on Antarctic sea-ice and their relation to sea-ice and snow properties and meteorological conditions ,
International Journal of Remote Sensing, 32 (14), pp. 3967-3984 .
doi:10.1080/01431161003801344 , hdl:10013/epic.36083
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Willat, R. , Laxon, S. , Giles, K. , Cullen, R. , Haas, C. and Helm, V. (2011)
Ku-band radar penetration into snow cover on Arctic sea ice using airborne data ,
Annals of Glaciology, 52 (57), pp. 197-205 .
hdl:10013/epic.37028
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Rabenstein, L. , Hendricks, S. , Lobach, J. and Haas, C. (2011)
Noise characteristics of an electromagnetic sea-ice thickness sounder on a fixed wing aircraft ,
Journal of Applied Geophysics, 75 (1), pp. 87-98 .
doi:10.1016/j.jappgeo.2011.06.006 , hdl:10013/epic.38599
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Krumpen, T. , Hölemann, J. , Willmes, S. , Morales Maqueda, M. A. , Busche, T. , Dmitrenko, I. A. , Gerdes, R. , Haas, C. , Hendricks, S. , Kirilov, S. , Rabenstein, L. and Schröder, D. (2011)
Sea ice production and water mass modification in the eastern Laptev Sea ,
Journal of Geophysical Research, 116, C05014 .
doi:10.1029/2010JC006545 , hdl:10013/epic.37038

Article
Toyota, T. , Haas, C. and Tamura, T. (2011)
Size distribution and shape properties of relatively small sea-ice floes in the Antarctic marginal ice zone in late winter ,
Deep Sea Research II, 58 (9), pp. 1182-1193 .
doi:10.1016/j.dsr2.2010.10.034 , hdl:10013/epic.37414
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Gerland, S. and Haas, C. (2011)
Snow-depth observations by adventurers traveling on Arctic sea ice ,
Annals of Glaciology, 52 (57), pp. 369-376 .
hdl:10013/epic.37024
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Schwegmann, S. , Haas, C. , Fowler, C. and Gerdes, R. (2011)
A comparison of satellite-derived sea-ice motion with drifting-buoy data in the Weddell Sea, Antarctica ,
Annals of Glaciology, 52 (57), pp. 103-110 .
hdl:10013/epic.36406
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Kern, S. , Ozsoy-Cicek, B. , Willmes, S. , Nicolaus, M. , Haas, C. and Ackley, S. (2011)
An intercomparison between AMSR-E snow-depth and satellite C- and Ku-Band radar backscatter data for Antarctic sea ice ,
Annals of Glaciology, 52 (57), pp. 279-290 .
hdl:10013/epic.36987
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Li, Z. , Nicolaus, M. , Toyota, T. and Haas, C. (2010)
Analysis on the crystals of sea ice cores derived from Weddell Sea, Antarctica ,
Chinese Journal of Polar Science, 21 (1), pp. 1-10 .
hdl:10013/epic.38549
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Rott, H. , Yueh, S. H. , Cline, D. W. , Duguay, C. , Essery, R. , Haas, C. , Hélière, F. , Kern, M. , Macelloni, G. , Malnes, E. , Nagler, T. , Pulliainen, J. , Rebhan, H. and Thompson, A. (2010)
Cold Regions Hydrology High-Resolution Observatory for Snow and Cold Land Processes ,
Proceedings of the IEEE, 98 (5), pp. 752-765 .
doi:10.1109/JPROC.2009.2038947 , hdl:10013/epic.35324
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Krumpen, T. , Willmes, S. , Morales Maqueda, M. A. , Haas, C. , Hölemann, J. , Gerdes, R. and Schröder, D. (2010)
Evaluation of a polynya flux model by means of thermal infrared satellite estimates ,
Annals of Glaciology; 52(57), pp. 52-60 .
hdl:10013/epic.36264

Article
Hendricks, S. , Gerland, S. , Smedsrud, L. H. , Haas, C. , Pfaffhuber, A. A. and Nilsen, F. (2010)
Sea Ice Thickness Variability in Storfjorden, Svalbard ,
Annals of Glaciology, 52 (57), pp. 61-68 .
hdl:10013/epic.36265
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Tonboe, R. T. , Pedersen, L. T. and Haas, C. (2010)
Simulation of the CryoSat-2 satellite radar altimeter sea ice thickness retrieval uncertainty ,
Canadian Journal of Remote Sensing, 36 (1), pp. 55-67 .
hdl:10013/epic.35878
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Haas, C. , Hendricks, S. , Eicken, H. and Herber, A. (2010)
Synoptic airborne thickness surveys reveal state of Arctic sea ice cover ,
Geophysical Research Letters, 37, L09501 .
doi:10.1029/2010GL042652 , hdl:10013/epic.35317
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Rabenstein, L. , Hendricks, S. , Martin, T. , Pfaffhuber, A. and Haas, C. (2010)
Thickness and surface-properties of different sea-ice regimes within the Arctic Trans Polar Drift: data from summers 2001, 2004 and 2007 ,
J. Geophys. Res., 115, C12059 .
doi:10.1029/2009JC005846 , hdl:10013/epic.36410
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Kaleschke, L. , Maaß, N. , Haas, C. , Hendricks, S. , Heygster, G. and Tonboe, R. T. (2010)
A sea-ice thickness retrieval model for 1.4 GHz radiometry and application to airborne measurements over low salinity sea-ice ,
The Cryosphere, 4 , pp. 583-592 .
doi:10.5194/tc-4-583-2010 , hdl:10013/epic.36366
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Hvidegaard, S. M. , Forsberg, R. , Helm, V. , Hendricks, S. , Skourup, H. , Stenseng, L. , Hanson, S. and Haas, C. (2009)
CRYOVEX 2008 - Final Report ,
DTU Space, Technical Report 2/2009. .
hdl:10013/epic.35790
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Pedersen, C. A. , Hall, R. , Gerland, S. , Sivertsen, A. H. , Svenoe, T. and Haas, C. (2009)
Combined airborne profiling over Fram Strait sea ice: Fractional sea-ice types, albedo, and thickness measurements ,
Cold Regions Science and Technology, 55 , pp. 23-32 .
doi:10.1016/j.coldregions.2008.08.004 , hdl:10013/epic.31137
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Willmes, S. , Krumpen, T. , Adams, S. , Rabenstein, L. , Haas, C. , Hölemann, J. , Hendricks, S. and Heinemann, G. (2009)
Cross-Validation of polynya monitoring methods from multi-sensor satellite and airborne data: A case study ,
Submitted to Canadian Journal of Remote Sensing. .
hdl:10013/epic.36270

Article
Nicolaus, M. , Haas, C. and Willmes, S. (2009)
Evolution of first- and second-year snow properties on sea ice in the Weddell Sea during spring-summer transition ,
Journal of Geophysical Research, 114, D17109. .
doi:10.1029/2008JD011227 , hdl:10013/epic.33300
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Haas, C. , Lobach, J. , Hendricks, S. , Rabenstein, L. and Pfaffling, A. (2009)
Helicopter-borne measurements of sea ice thickness, using a small and lightweight, digital EM system ,
Journal of Applied Geophysics, 67 (3), pp. 234-241 .
doi:10.1016/j.jappgeo.2008.05.005 , hdl:10013/epic.32310
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Willmes, S. , Bareiss, J. , Haas, C. and Nicolaus, M. (2009)
Observing snowmelt dynamics on fast ice in Kongsfjorden, Svalbard, with NOAA/AVHRR data and field measurements ,
Polar Research, 28 (2), pp. 203-213 .
doi:10.1111/j.1751-8369.2009.00095.x , hdl:10013/epic.33301
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Willmes, S. , Haas, C. , Nicolaus, M. and Bareiss, J. (2009)
Satellite microwave observations of the interannual variability of snowmelt on sea ice in the Southern Ocean ,
J. Geophys. Res., 114, C03006. .
doi:10.1029/2008JC004919 , hdl:10013/epic.32134
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Haas, C. (2008)
Antarctic sea ice - the odd down south ,
Newsletter for the Canadian Antarctic Research Network, Canadian Polar Commission, 25 , pp. 7-13 .
hdl:10013/epic.31350
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Schiel, S. , Haas, C. , Michels, J. , Mitadalski, E. , Schünemann, H. , Steffens, M. and Thomas, D. N. (2008)
Copepods in sea ice of the western Weddell Sea during austral spring 2004. ,
Deep Sea Research II, 55 (8), pp. 1056-1067 .
doi:10.1016/j.dsr2.2007.12.014 , hdl:10013/epic.30569

Article
Flores, H. , Haas, C. , van Franeker, J. A. and Meesters, E. (2008)
Density of pack-ice seals and penguins in the western Weddell Sea in relation to ice thickness and ocean depth ,
Deep Sea Research II, 55 (8), pp. 1068-1074 .
doi:10.1016/j.dsr2.2007.12.024 , hdl:10013/epic.30570
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Gascard, J. C. , Festy, J. , le Gogg, H. , Weber, M. , Bruemmer, B. , Offermann, M. , Doble, M. , Wadhams, P. , Forsberg, R. , Hanson, S. , Skourup, H. , Gerland, S. , Nicolaus, M. , Metaxin, J. P. , Grangeon, J. , Haapala, J. , Rinne, E. , Haas, C. , Heygster, G. , Jakobson, E. , Palo, T. , Wilkinson, J. , Kaleschke, L. , Claffey, K. , Elder, B. and Bottenheim, J. (2008)
Exploring Arctic Transpolar Drift during dramatic sea ice retreat ,
Eos, 89 (3), pp. 21-28 .
hdl:10013/epic.28787
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Hellmer, H. , Haas, C. , Schröder, M. , Dieckmann, G. and Spindler, M. (2008)
The ISPOL drift experiment ,
Deep Sea Research II, 55 (8), pp. 913-917 .
doi:10.1016/j.dsr2.2008.01.001 , hdl:10013/epic.30561
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Herber, A. , Dethloff, K. , Haas, C. , Steinhage, D. , Strapp, J. W. , Bottenheim, J. , McElroy, T. and Yamanouchi, T. (2008)
POLAR 5 - a new research aircraft for improved access to the Arctic ,
ISAR-1, Drastic Change under the Global Warming, Extended Abstract, pp. 54-57 .
hdl:10013/epic.34660
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Haas, C. , Pfaffling, A. , Hendricks, S. , Rabenstein, L. , Etienne, J. L. and Rigor, I. (2008)
Reduced ice thickness in Arctic Transpolar Drift favors rapid ice retreat ,
Geophys. Res. Lett., 35, L17501. .
doi:10.1029/2008GL034457 , hdl:10013/epic.31145
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Hutchings, J. , Geiger, C. , Roberts, A. , Richter-Menge, J. , Doble, M. , Forsberg, R. , Giles, K. , Haas, C. , Hendricks, S. , Khambhamettu, C. , Laxon, S. , Martin, T. , Pruis, M. , Thomas, M. , Wadhams, P. and Zwally, H. J. (2008)
Role of Ice Dynamics in the Sea Ice Mass Balance ,
EOS, 89 (50), pp. 515-516 .
doi:10.1029/2008EO500003 , hdl:10013/epic.31730

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Haas, C. (2008)
Sea Ice Thickness: Hidden Key To Understanding Arctic Change ,
Earthzine, March 27, Articles, Climate, Earth Observation, Water. .
hdl:10013/epic.30628
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Haas, C. , Nicolaus, M. , Willmes, S. , Worby, A. and Flinspach, D. (2008)
Sea ice and snow thickness and physical properties of an ice floe in the western Weddell Sea and their changes during spring warming ,
Deep Sea Research II 55(8-9), pp. 963-974 .
doi:10.1016/j.dsr2.2007.12.020 , hdl:10013/epic.30568
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Tison, J. L. , Worby, A. , Delille, B. , Brabant, F. , Papadimitriou, S. , Thomas, D. , de Jong, J. , Lannuzel, D. and Haas, C. (2008)
Temporal evolution of decaying summer first-year sea ice in the Western Weddell Sea, Antarctica ,
Deep Sea Research II, 55 (8), pp. 975-987 .
doi:10.1016/j.dsr2.2007.12.021 , hdl:10013/epic.30571
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Heil, P. , Hutchings, J. K. , Worby, A. P. , Johansson, M. , Launiainen, J. , Haas, C. and Hibler III, W. D. (2008)
Tidal forcing on sea-ice drift and deformation in the western Weddell Sea in early austral summer, 2004 ,
Deep Sea Research II, 55 (8), pp. 943-962 .
doi:10.1016/j.dsr2.2007.12.026 , hdl:10013/epic.30572
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Papadimitriou, S. , Thomas, D. N. , Kennedy, H. , Haas, C. , Kuosa, H. , Krell, A. and Dieckmann, G. (2007)
Biogeochemical composition of natural sea ice brines from the Weddell Sea during early austral summer ,
Limnology and Oceanography, 52 , pp. 1809-1823 .
hdl:10013/epic.27055

Article
Damm, E. , Schauer, U. , Rudels, B. and Haas, C. (2007)
Excess of bottom-released methane in an Artic shelf seapolynya in winter ,
Continental Shelf Research, 27 (12), pp. 1692-1701 .
doi:10.1016/j.csr.2007.02.003 , hdl:10013/epic.27051

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Bareiss, J. , Willmes, S. and Haas, C. (2007)
New Data Set of Onset of Annual Snowmelt on Antarctic Sea Ice ,
EOS Transactions, 88(22), 237 .
hdl:10013/epic.26833
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Pfaffling, A. , Haas, C. and Reid, J. E. (2007)
A direct helicopter EM sea ice thickness inversion, assessed with synthetic and field data ,
Geophysics, 72, F127-F137 .
hdl:10013/epic.26722
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Haas, C. , Hendricks, S. and Doble, M. (2006)
Comparison of the sea ice thickness distribution in the Lincoln Sea and adjacent Arctic Ocean in 2004 and 2005 ,
Annals of glaciology, 44 , pp. 247-252 .
hdl:10013/epic.26721
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Helm, V. , Hendricks, S. , Göbell, S. , Rack, W. , Haas, C. , Nixdorf, U. and Boebel, T. (2006)
CryoVEx 2004 and 2005 (BoB) data acquisition and final report ,
Alfred Wegener Institute, Bremerhaven, Germany. .
hdl:10013/epic.34417
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Haas, C. , Dieckmann, G. , Hellmer, H. and Schröder, M. (2006)
Frühling im Weddellmeer: Biologisch-physikalische Wechselwirkungen zwischen Atmosphäre, Eis und Ozean ,
Das AWI in den Jahren 2004 und 2005, pp. 58-60 .
hdl:10013/epic.25349
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von Saldern, C. , Haas, C. and Dierking, W. (2006)
Parameterisation of Arctic sea ice surface roughness for application in ice type classification ,
Annals of glaciology, 44 , pp. 224-230 .
hdl:10013/epic.24459

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Kern, S. , Gade, M. , Haas, C. and Pfaffling, A. (2006)
Retrieval of Thin-Ice Thickness using the L-Band Polarization Ratio measured by the helicopter-borne Scatterometer HELISCAT ,
Annals of glaciology, 44 , pp. 275-280 .
hdl:10013/epic.26574
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Hellmer, H. , Dieckmann, G. , Haas, C. and Schröder, M. (2006)
Sea ice feedbacks observed in western Weddell Sea ,
EOS, Transactions, American Geophysical Union, 87(18), 173 .
hdl:10013/epic.23734
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Richter-Menge, J. , Overland, J. , Proshutinsky, A. , Romanovsky, V. , Bengtsson, L. , Brigham, L. , Dyurgerov, M. , Gascard, J. C. , Gerland, S. , Graversen, R. , Haas, C. , Karcher, M. , Kuhry, P. , Maslanik, J. , Melling, H. , Maslowski, W. , Morison, J. , Perovich, D. , Przybylak, R. , Rachold, V. , Rogor, I. , Shiklomanov, A. , Stroeve, J. , Walker, D. and Walsh, J. (2006)
State of the Arctic Report. ,
NOAA OAR Special Report, NOAA/OAR/PMEL, Seattle, WA .
hdl:10013/epic.25952
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Willmes, S. , Bareiss, J. , Haas, C. and Nicolaus, M. (2006)
The importance of diurnal processes for the seasonal cycle of sea-ice microwave brightness temperatures during early summer in the Weddell Sea ,
Annals of glaciology., 44 , pp. 297-302 .
hdl:10013/epic.26708
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Nicolaus, M. , Haas, C. , Bareiss, J. and Willmes, S. (2006)
A model study of differences of snow thinning on Arctic and Antarctic first-year sea ice during spring and summer ,
Annals of glaciology, 44 , pp. 147-153 .
hdl:10013/epic.24393
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Haas, C. (2004)
Late-summer sea ice thickness variability in the Arctic Transpolar Drift 1991--2001 derived from ground-based electromagnetic sounding ,
Geophysical research letters, 31, L09402 .
doi:10.1029/2003GL019394 , hdl:10013/epic.21480
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Gerland, S. , Haas, C. , Nicolaus, M. and Winther, J. G. (2004)
Seasonal development of structure and optical surface properties of fast ice in Kongsfjorden, Svalbard ,
Reports on Polar and Marine Research, 492 , pp. 26-34 .
hdl:10013/epic.22392
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Kattner, G. , Thomas, D. N. , Haas, C. , Kennedy, H. and Dieckmann, G. (2004)
Surface ice and gap layers in Antarctic sea ice: highly productive habitats ,
Marine ecology-progress series, 277 , pp. 1-12 .
hdl:10013/epic.21049

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Eisen, O. , Freitag, J. , Haas, C. , Rack, W. , Rotschky, G. and Schmitt, J. (2003)
Bowling mermaids; or How do fresh water ice balls form? ,
Journal of Glaciology, 49, 167 , pp. 605-606 .
hdl:10013/epic.19024
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Nicolaus, M. , Haas, C. and Bareiss, J. (2003)
Observations of superimposed ice formation at melt-onset on fast ice on Kongsfjorden, Svalbard ,
Physics and Chemistry of the Earth, 28 , pp. 1241-1248 .
doi:10.1016/j.pce.2003.08.048 , hdl:10013/epic.16565
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Haas, C. and Lieser, J. L. (2003)
Sea ice conditions in the Transpolar Drift in August/September 2001. Observations during Polarstern cruise ARKTIS XVII/2. ,
Reports on Polar and Marine Research, 441 .
hdl:10013/epic.19305
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Article
Haas, C. , Miller, H. and Lemke, P. (2002)
Die wissenschaftliche Nutzung der CryoSat-Mission in Deutschland - Ein Konzeptpapier des CryoSat-Projektbüros am Alfred-Wegener-Institut, Bremerhaven ,
CryoSat-Projektbüro-Report .
hdl:10013/epic.16562
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Article
Thiede, J. , Haas, C. , Jokat, W. , Mühe, R. , Speilhagen, R. and Snow, J. (2002)
Expedition to the volcanoes of the Arctic seafloor ,
German Research (DFG), 1 , pp. 4-9 .
hdl:10013/epic.18194

Article
Mock, T. , Dieckmann, G. , Haas, C. , Krell, A. , Tison, J. L. , Belem, A. , Papadimitriou, S. and Thomas, D. N. (2002)
Micro-optodes in sea ice: A new approach to investigate oxygen dynamics during sea ice formation ,
Aquatic microbial ecology, 29 , pp. 297-306 .
hdl:10013/epic.16038
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Article
Thiede, J. , Haas, C. , Jokat, W. , Mühe, R. , Snow, J. and Spielhagen, R. (2002)
Om vulkanerne i det Arktiske Ocean: Resultater av AMORE-2001 togtet ,
VARV,4pp., 3 .
hdl:10013/epic.18147

Article
Kennedy, H. , Thomas, D. , Kattner, G. , Haas, C. and Dieckmann, G. (2002)
Particulate organic matter in Antarctic summer sea ice: Concentration and stable isotopic composition. ,
Marine Ecology Progress Series, 238 , pp. 1-13 .
hdl:10013/epic.16082

Article
Tison, J. L. , Haas, C. , Gowing, M. M. , Sleewaegen, S. and Bernard, A. (2002)
Tank study of physico-chemical controls on gas content and composition during growth of young sea ice ,
Journal of Glaciology .
hdl:10013/epic.15012

Article
Haas, C. , Bareiss, J. and Nicolaus, M. (2002)
The surface energy balance and its importance for superimposed ice formation (SEBISUP) ,
EC-LSF Report NP-9/2001 .
hdl:10013/epic.16563
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Article
Giannelli, V. , Thomas, D. N. , Haas, C. , Kattner, G. , Kennedy, H. and Dieckmann, G. (2001)
Behaviour of dissolved organic matter and inorganic nutrients during experimental sea-ice formation ,
Annals of Glaciology, 33 , pp. 317-321 .
hdl:10013/epic.15559

Article
Herborg, L. M. , Thomas, D. N. , Kennedy, H. , Haas, C. and Dieckmann, G. (2001)
Dissolved carbohydrates in Antarctic sea ice ,
Antarctic Science, 13 (2), pp. 119-125 .
hdl:10013/epic.15010

Article
Thomas, D. N. , Kattner, G. , Engbrodt, R. , Gianelli, V. , Kennedy, H. , Haas, C. and Dieckmann, G. (2001)
Dissolved organic matter in Antarctic sea ice ,
Annals of Glaciology, 33 , pp. 297-303 .
hdl:10013/epic.15558

Article
Thiede, J. , Haas, C. , Jokat, W. , Mühe, R. , Spielhagen, R. and Snow, J. (2001)
Expedition zu den Vulkanen der Arktis ,
Forschung, 4 , pp. 14-19 .
hdl:10013/epic.18644

Article
Haas, C. and Eicken, H. (2001)
Interannual variability of summer sea ice thicknessin the siberian and central Arctic under different atmospheric circulation regimes ,
Journal of Geophysical Research, 106, (C3), pp. 4449-4462 .
hdl:10013/epic.15005
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Article
Massom, R. A. , Eicken, H. , Haas, C. , Jeffries, M. O. , Drinkwater, M. R. , Sturm, M. , Worby, A. P. , Wu, X. , Lytle, V. I. , Ushio, S. , Morris, K. , Reid, P. A. , Warren, S. and Allison, I. (2001)
Snow on Antarctic sea ice ,
Reviews of Geophysics, 39 (3), pp. 413-445 .
hdl:10013/epic.15011
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Article
Haas, C. , Thomas, D. N. and Bareiss, J. (2001)
Surface properties and processes of perennial Antarctic sea ice in summer ,
Journal of Glaciology, 47 (159), pp. 613-625 .
hdl:10013/epic.15007
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Article
Schiel, S. , Thomas, D. N. , Haas, C. , Dieckmann, G. and Alheit, R. (2001)
The occurrence of the copepods Stephos longipes (Calanoida) and Drescheriella glacialis (Harpacticoida) in summer sea ice in the Weddell Sea, Antarctica ,
Antarctic Science, 13 (2), pp. 150-157 .
hdl:10013/epic.15009

Article
Haas, C. (2001)
The seasonal cycle of ERS scatterometer signatures over perennial Antarctic sea ice and associated surface ice properties and processes ,
Annals of Glaciology, 33 , pp. 69-73 .
hdl:10013/epic.15008
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Article
Haas, C. , Rupp, K. H. and Uuskallio, A. (1999)
Comparison of along track EM ice thickness profiles with ship performance data ,
POAC '99: Proc 15th Int Conf on Port and Ocean Engineering Under Arctic Conditions, Espoo, Finland, 1999 (J Tuhkuri, K Riska, eds) Helsinki Univ Techn, Ship Lab, 1 , pp. 343-353 .
hdl:10013/epic.11732
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Article
Haas, C. , Cottier, F. , Smedsrud, L. H. , Thomas, D. N. , Buschmann, U. , Dethleff, D. , Gerland, S. , Giannelli, V. , Hölemann, J. , Tison, J. L. and Wadhams, P. (1999)
Multidisciplinary ice tank study shedding new light on sea ice growth processes ,
Eos Transact, 80 (43), pp. 507-513 .
hdl:10013/epic.11734
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Article
Haas, C. , Liu, Q. and Martin, T. (1999)
Retrieval of Antarctic sea-ice pressure ridge frequencies from ERS SAR imagery by means of in-situ laser profiling and usage of a neural network ,
International Journal of Remote Sensing , 20 (15), pp. 3111-3123 .
hdl:10013/epic.11733
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Article
Thomas, D. N. , Lara, R. J. , Haas, C. , Schiel, S. , Dieckmann, G. , Kattner, G. , Nöthig, E. M. and Mizdalski, E. (1998)
Biological soup within decaying summer sea ice in the Amundsen Sea, Antarctica ,
Antarctic Research Series AGU, Washington DC, 73 , pp. 161-171 .
hdl:10013/epic.13715

Article
Schiel, S. , Thomas, D. N. , Haas, C. , Mizdalski, E. and Dahms, H. U. (1998)
Copepods in Antarctic sea ice ,
Antarctic Research Series AGU, Washington DC, 73 , pp. 173-182 .
hdl:10013/epic.13401

Article
Haas, C. (1998)
Evaluation of ship-based electromagnetic-inductive thickness measurements of summer sea-ice in the Bellingshausen and Amundsen Seas, Antarctica ,
Cold Regions Science and Technology, 27 , pp. 1-16 .
hdl:10013/epic.11731
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Article
Haas, C. and Jochem, F. J. (1998)
Mehr als gefrorenes Wasser ,
Mare, 6 , pp. 70-73 .
hdl:10013/epic.15047

Article
Liu, Q. , Haas, C. , Martin, T. and Augstein, E. (1998)
Study of sea-ice pressure ridge distributions from in-situ laser profiler measurements and ERS SAR signatures ,
Proc EUSAR '98: European Conference on Synthetic Aperture Radar, VDE-Verl , Berlin u Offenbach, pp. 449-452 .
hdl:10013/epic.12563

Article
Haas, C. , Gerland, S. , Eicken, H. and Miller, H. (1997)
Comparison of sea-ice thickness measurements under summer and winter conditions in the Arctic using a small electromagnetic induction device ,
Geophysics, 62 (3), pp. 749-757 .
hdl:10013/epic.11729
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Article
Massom, R. A. , Drinkwater, M. R. and Haas, C. (1997)
Winter snow cover on sea ice in the Weddell Sea ,
J Geophys Res C1, 102 , pp. 1101-1117 .
hdl:10013/epic.12663
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Article
Gerland, S. , Haas, C. , Eicken, H. and Miller, H. (1995)
Elektromagnetische Messungen zur Bestimmung der Dicke von Meereis ,
Mitteilungen der Deutschen Geophysikalischen Gesellschaft, 2 , pp. 38-43 .
hdl:10013/epic.11510

Article
Haas, C. and Thomas, D. N. (1995)
Glacial-ice fragments in Antarctic sea ice ,
J Glaciol , 41 (138), pp. 432-435 .
hdl:10013/epic.11728

Inbook

Inbook
Haas, C. (2010)
Dynamics versus Thermodynamics: The Sea Ice Thickness Distribution ,
Sea ice / Ed. by David N. Thomas and Gerhard S. Dieckmann Ames, Iowa : Blackwell, ISBN: 978-1-4051-8580-6 .
hdl:10013/epic.33677
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Inbook
Haas, C. and Druckenmiller, M. (2009)
Ice thickness and roughness measurements ,
Field techniques for sea-ice research / ed. by Hajo Eicken ... Fairbanks : Univ. of Alaska Press, ISBN: 978-1-60223-059-0 .
hdl:10013/epic.35348
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Inbook
Druckenmiller, M. and Haas, C. (2009)
Integrated Sea Ice Observation Programs ,
IField techniques for sea-ice research / ed. by Hajo Eicken ... Fairbanks : Univ. of Alaska Press, ISBN: 978-1-60223-059-0 .
hdl:10013/epic.35349
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Inbook
Haas, C. (2009)
Sea ice - a very special matter ,
Biological studies in polar oceans : exploration of life in icy waters ; 35 research reports and reviews / Gotthilf and Irmtraut Hempel (ed.) Bremerhaven : Wirtschaftsverl. NW, Verl. für neue Wissenschaft, ISBN: 978-3-86509-865-8 .
hdl:10013/epic.33678
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Inbook
Haas, C. (2009)
TotalPoleAirship: Der Traum von systematischen Eisdickenmessungen in der Arktis ,
66°30 ' NORD : Luftschiffe über der Arktis / Hrsg. Jürgen Bleibler; Hrsg. Sabine Mücke; Hrsg. Barbara Waibel; Hrsg. Ursula Zeller Bremen : Hauschild, H M, ISBN: 978-3-89757-438-0 .
hdl:10013/epic.33302
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Inbook
Haas, C. , Göbell, S. , Hendricks, S. , Martin, T. , Pfaffling, A. and von Saldern, C. (2007)
Airborne electromagnetic measurements of sea ice thickness: methods and applications ,
Wadhams, P., and G. Amanatidis (Eds.): Arctic Sea Ice Thickness: Past, Present and Future. European Commission, Climate Change and Natural Hazards Series .
hdl:10013/epic.26724
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Inbook
Haas, C. (2007)
Dünn und dünner? - Eisdickenmessungen in den Polarmeeren ,
Polarstern : 25 Jahre Forschung in Arktis und Antarktis / Dieter K. Fütterer; Eberhard Fahrbach Bielefeld : Delius Klasing, ISBN: 978-3-7688-2433-0 .
hdl:10013/epic.30629
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Inbook
Haas, C. (2006)
Auf dünnem Eis? Eisdickenänderungen im Nordpolarmeer ,
Warnsignale aus den Polarregionen : wissenschaftliche Fakten / Hrsg.: José L. Lozán, H. Graßl, P. Hupfer, H.-W. Hubberten, D. Piepenburg und L. Karpe. Wiss. Auswertungen, Hamburg .
hdl:10013/epic.24414
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Inbook
Pfaffling, A. , Haas, C. and Reid, J. E. (2006)
Key characteristics of helicopter electromagnetic sea ice thickness mapping: Resolution, Accuracy and Footprint ,
Arctic Sea Ice Thickness. .
hdl:10013/epic.27052

Inbook
Gerland, S. , Haas, C. , Hall, R. , Holfort, J. , Hansen, E. , Løyning, T. B. and Rennner, A. (2006)
Spring sea ice thickness in the western Fram Strait: Preliminary results ,
P. Wadhams & G. Amanatidis (eds.): Arctic Sea Ice Thickness: Past, Present and Future. Climate Change and Natural Hazards Series 10, EUR22416, European Commission, Brussels, 2006pages, ISBN: .92-79-02803-0 .
hdl:10013/epic.26728
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Inbook
Haas, C. (2005)
Eisberge und Packeis - Gefährliches Treibgut auf den Meeren ,
Entfesselte Elemente - Der Mensch und die Kräfte der Natur Buchreihe Spektrum, Wissen Media Verlag GmbH, Gütersloh/München, ISBN: 3-577-16206-6 .
hdl:10013/epic.24367

Inbook
Haas, C. (2003)
Dynamics versus thermodynamics: The sea-ice thickness distribution ,
Sea Ice - An Introduction to its Physics, Biology, Chemistry and Geology (Ed. by D.N. Thomas & G.S. Dieckmann), Blackwell Scientific .
hdl:10013/epic.16086

Inbook
Haas, C. (2001)
Zu Fuss über das Meereis ,
Lange, G. (Ed.): Eiskalte Entdeckungen, Forschungsreisen zwischen Nord- und Südpol. Delius Klasing Verlag., ISBN: 3-7688-1257-X .
hdl:10013/epic.15550

Inbook
Dieckmann, G. , Eicken, H. , Haas, C. , Garrison, D. L. , Gleitz, M. , Lange, M. , Spindler, M. , Sullivan, C. W. , Thomas, D. N. , Weissenberger, J. and Nöthig, E. M. (1998)
A compilation of data on sea ice algal standing crop from the Bellingshausen, Amundsen and Weddell Seas from 1983 to 1994 ,
Antarctic sea ice: Biological processes, interactions and variability (M P Lizotte, K R Arrigo, eds ) Ant Res Ser, AGU, Washington DC .
hdl:10013/epic.11210

Thesis

Thesis -PhD
Haas, C. (1997)
Bestimmung der Meereisdicke mit seismischen und elektromagnetisch-induktiven Verfahren ,
PhD thesis, Universität Bremen.
hdl:10013/epic.11730
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Conference

Conference -Talk
Hendricks, S. , Ricker, R. , Helm, V. , Haas, C. and Davidson, M. (2014)
Uncertainties of Sea Ice Thickness from CryoSat-2 ,
International Sea Ice Concentration and Thickness Evaluation and Intercomparison Workshop, University of Hamburg, 19 September 2014 - unspecified .
hdl:10013/epic.45047
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Conference -Talk
Hendricks, S. , Hunkeler, P. , Pfaffhuber, A. A. , Vöge, M. and Haas, C. (2014)
Advances in Electromagnetic Induction Sounding of Sea-Ice Thickness ,
IGS International Symposium on Sea Ice in a Changing Environment, Hobart, Tasmania, 10 March 2014 - 14 March 2014 .
hdl:10013/epic.43421
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Conference -Poster
Schwegmann, S. , Hendricks, S. , Haas, C. and Herber, A. (2014)
Effects of different footprint areas on the comparability between measurements of sea ice freeboard ,
IGS International Symposium on Sea Ice in a Changing Environment, Hobart, Tasmania, Australia, 10 March 2014 - 14 March 2014 .
hdl:10013/epic.43367
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Conference -Talk
Schwegmann, S. , Hunkeler, P. , Hendricks, S. , Lemke, P. , Haas, C. , Krumpen, T. and Ricker, R. (2014)
Winter sea-ice thicknesses in the Weddell Sea and their variability over the past 24 years ,
IGS International Symposium on Sea Ice in a Changing Environment, Hobart, Tasmania, Australia, 10 March 2014 - 14 March 2014 .
hdl:10013/epic.43368
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Conference -Talk
Hendricks, S. , Ricker, R. , Helm, V. , Haas, C. , Skourup, H. , Herber, A. , Schwegmann, S. , Gerdes, R. and Davidson, M. (2013)
CryoSat-2 Sea-Ice Freeboard and Thickness ,
ESA Living Planet Symposium, Edinburgh, 9 September 2013 - 13 September 2013 .
hdl:10013/epic.42309
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Conference -Talk
Hendricks, S. , Ricker, R. , Helm, V. , Schwegmann, S. , Haas, C. and Herber, A. (2013)
Mass balance of sea ice in both hemispheres ,
CryoSat Third User Workshop, Dresden, 12 March 2013 - 14 March 2013 .
hdl:10013/epic.42310
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Conference -Poster
Lange, B. , Michel, C. , Beckers, J. , Casey, J. , Haas, C. , Niemi, A. and Meisterhans, G. (2012)
Biochemical and physical characterization of multi-year and first-year ice in the Lincoln Sea (between Canada and the North Pole) ,
ArcticNet Annual Science Meeting 2012, Vancouver, BC, Canada, 10 December 2012 - 14 December 2012 .
hdl:10013/epic.41524
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Conference -Poster
Schwegmann, S. , Hendricks, S. , Ricker, R. , Haas, C. and Herber, A. (2012)
On the qualification of available sea ice freeboard data for the validation of remote sensing observations ,
MyOcean Science days, Geesthacht, Germany, 2012 - unspecified .
hdl:10013/epic.41327
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Conference -Talk
Hendricks, S. , Helm, V. , Herber, A. and Haas, C. (2012)
CryoVEx 2011, Airborne Validation Campaign ,
CryoVEx 2011 Final Meeting .
hdl:10013/epic.38684
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Conference -Talk
Wittenberg, N. , Haas, C. and Kuhn, G. (2012)
Indications for late Holocene climate variations derived from grain size compositions of sediment cores from Maxwell Bay, King George Island, West Antarctic Peninsula ,
GV and SEDIMENT Meeting 2012 , Hamburg, Germany, 23 September 2012 - 28 September 2012 .
hdl:10013/epic.40029

Conference -Poster
Gerland, S. , Renner, A. , Haas, C. , Nicolaus, M. , Granskog, M. , Hendricks, S. , Hudson, S. R. , Beckers, J. M. and Goodwin, H. (2011)
Sea Ice Thickness Variability in the Fram Strait ,
AGU Fall Meeting .
hdl:10013/epic.39546
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Conference -Poster
Hendricks, S. , Helm, V. , Stenseng, L. and Haas, C. (2011)
Ku-Band radar penetration into Snow over Arctic sea ice ,
2nd CryoSat Validation Workshop. .
hdl:10013/epic.36883
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Conference -Poster
Gerland, S. , Renner, A. , Granskog, M. , Hansen, E. , Haas, C. , Nicolaus, M. , Hendricks, S. , Pavlova, O. and Beckers, J. M. (2011)
Regional Sea Ice Thickness Distribution in the Svalbard Region and Fram Strait from Airborne and in situ Observations ,
WCRP Conference .
hdl:10013/epic.39542
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Conference -Talk
Krumpen, T. , Hendricks, S. , Nicolaus, M. , Haas, C. and Gerdes, R. (2011)
SMOS Sea Ice Product: Validation of Ice Thickness ,
SMOSIce Meeting, Feb. 11 .
hdl:10013/epic.37104

Conference -Poster
Hendricks, S. and Haas, C. (2011)
Thickness retrieval of deformed sea ice with airborne EM, Error evaluation using a 3D finite-element forward model ,
IUGG XXV General Assembly, Melbourne. .
hdl:10013/epic.37835
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Conference -Talk
Hendricks, S. , Haas, C. , Stenseng, L. and Helm, V. (2011)
Validation of CryoSat-2 sea ice freeboard retrievals by ground and airborne surveys ,
IUGG XXV General Assembly, Melbourne. .
hdl:10013/epic.38285
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Conference -Talk
Schwegmann, S. , Timmermann, R. , Haas, C. , Gerdes, R. and Lemke, P. (2010)
The importance of large scale sea ice drift and ice type distribution on ice extent in the Weddell Sea ,
IGS International Symposium on Sea Ice in the Physical and Biogeochemical System, Tromsø, Norway, 31 May 2010 - 4 June 2010 .
hdl:10013/epic.43791
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Conference -Conference paper
Hendricks, S. , Stenseng, L. , Helm, V. and Haas, C. (2010)
Effects of Surface Roughness on Sea Ice Freeboard Retrieval with an Airborne Ku-Band SAR Radar Altimeter ,
Geoscience and Remote Sensing (IGARSS 2010), IEEE International Symposium. .
hdl:10013/epic.38266

Conference -Poster
Krumpen, T. , Willmes, S. , Morales Maqueda, M. A. , Gerdes, R. , Haas, C. , Hölemann, J. and Schröder, D. (2010)
Evaluation of a polynya flux model by means of thermal infrared satellite estimates ,
IGS Sea Ice Symposium 2010, Tromsoe. .
hdl:10013/epic.37106

Conference -Talk
Hendricks, S. , Gerland, S. , Smedsrud, L. H. , Haas, C. , Pfaffhuber, A. A. and Nilsen, F. (2010)
Sea Ice Thickness Variability in Storfjorden, Svalbard Archipelago ,
International Symposium on Sea Ice in the Physical and Biogeochemical System, TromsoeMay - 4 June 2010. .
hdl:10013/epic.35504
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Conference -Poster
Schwegmann, S. , Haas, C. , Timmermann, R. , Gerdes, R. and Lemke, P. (2009)
The importance of large scale sea ice drift and ice type distribution on ice extent in the Weddell Sea ,
American Geophysical Union, Fall Meeting , San Francisco, California, US, 14 December 2009 - 18 December 2009 .
hdl:10013/epic.43793
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Conference -Poster
Schwegmann, S. , Haas, C. , Timmermann, R. , Gerdes, R. and Lemke, P. (2009)
Decadal Variability of Sea Ice Drift in the Weddell Sea for the Period from 1979 to 2006 ,
EGU General Assembly, Vienna, Austria, 19 April 2009 - 24 April 2009 .
hdl:10013/epic.43794
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Conference -Talk
Hendricks, S. , Haas, C. , Rabenstein, L. and Lobach, J. (2009)
Airborne EM Sea Ice Thickness Sounding: Forward Modelling and Hardware Developments ,
23. Kolloquium Elektromagnetische Tiefenforschung, Seddin. .
hdl:10013/epic.33453
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Conference -Conference paper
Busche, T. , Hajnsek, I. , Popathanassiou, K. , Krumpen, T. , Rabenstein, L. , Hölemann, J. , Haas, C. and Willmes, S. (2009)
Comparison of helicopter-borne thin sea ice thickness profiles with polarimetric signatures of dual-pole Terrasar-X data ,
IEEE International Geoscience & Remote Sensing Symposium, Cape Town, Africa .
hdl:10013/epic.36269

Conference -Talk
Hendricks, S. , Haas, C. , Helm, V. , Stenseng, L. and Tonboe, R. (2009)
Freeboard and HEM sea ice thickness measurements in 2005, 2006 and 2008 ,
Joint CryoSat-IceSat Science Team Meeting, Reykjavik, Iceland. .
hdl:10013/epic.33188
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Conference -Talk
Hendricks, S. , Haas, C. and Rabenstein, L. (2009)
Snapshots of Arctic Sea Ice Thickness ,
McGill University, Sea Ice Seminar. .
hdl:10013/epic.33195
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Conference -Poster
Krumpen, T. , Willmes, S. , Rabenstein, L. , Morales Maqueda, M. A. , Willmott, D. , Hoelemann, A. J. and Haas, C. (2009)
The West New Siberian Polynya: Ice and salt flux computations and results from the TRANSDRIFT XIII expedition. ,
SCAR Conference, St. Petersburg, Russia, Jan. 2009. .
hdl:10013/epic.37119

Conference -Talk
Krumpen, T. , Busche, T. , Gerdes, R. , Haas, C. , Hendricks, S. , Hoelemann, A. J. , Klagge, T. , Morales Maqueda, M. A. , Rabenstein, L. , Rozman, P. , Schroeder, D. and Willmes, S. (2009)
The use of SAR products for expedition planning and polynya model validation ,
MOCA-09, July 2009, Montreal, Canada. .
hdl:10013/epic.37108

Conference -Talk
Hendricks, S. , Haas, C. , Rabenstein, L. and Lobach, J. (2008)
Airborne Sea Ice Thickness Sounding ,
University of Alaska, Fairbanks, Geophysical Institute Snow, Ice and Permafrost Seminar. .
hdl:10013/epic.33194
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Conference -Talk
Hendricks, S. , Haas, C. , Rabenstein, L. and Martin, T. (2008)
Airborne sea ice thickness measurements in 2007 and 2008 ,
SEDNA Science Workshop. .
hdl:10013/epic.33189
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Conference -Conference paper
Rott, H. , Cline, D. , Duguay, C. , Essery, R. , Haas, C. , Macelloni, G. , Malnes, E. , Pulliainen, J. , Rebhan, H. and Yueh, S. (2008)
CoReH2O - A Ku- and X-Band SAR Mission for Snow and Ice Monitoring ,
EUSAR 2008 Proceedings, Paper 5.2.2, 7th European Conference on Synthetic Aperture Radar, June 2-5, 2008, Friedrichshafen, Germany. .
hdl:10013/epic.30695
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Conference -Talk
Hendricks, S. , Haas, C. and Helm, V. (2008)
CryoVEx 2008: Airborne sea ice thickness campaign ,
CryoVEx 2008 Mid Term Review, Copenhagen. .
hdl:10013/epic.33462

Conference -Talk
Rabenstein, L. , Haas, C. and Lobach, J. (2008)
Development and Test of a Fixed Wing AEM Sea Ice Thickness Sounder ,
5th International Conference on AIRBORNE ELECTROMAGNETICS, 28-30 May 2008, Haikko Manor, Finland. .
hdl:10013/epic.31144
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Conference -Poster
Krumpen, T. , Haas, C. and Hoelemann, A. J. (2008)
Dynamics and sea-ice export of the southern West New Siberian polynya ,
AGU Conference, St. Franscisco, USA, Dez. 2008. .
hdl:10013/epic.37109

Conference -Talk
Krumpen, T. , Haas, C. and Hoelemann, A. J. (2008)
Dynamics and sea-ice export of the southern West New Siberian polynya ,
Internationalen Polartagung der Deutschen Gesellschaft für Polarforschung, Mar. 2008. .
hdl:10013/epic.37110

Conference -Talk
Rabenstein, L. , Hendricks, S. and Haas, C. (2008)
Large area sea ice thickness measurements using airborne electromagnetics ,
Arctic Change 2008, Quebec, Canada. .
hdl:10013/epic.31755
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Conference -Talk
Hendricks, S. , Rabenstein, L. , Leinweber, V. T. and Haas, C. (2008)
Sea Ice Thickness in the Transpolar Drift in Summer 2007 ,
IUP Blockseminar. .
hdl:10013/epic.33190
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Conference -Talk
Rabenstein, L. , Hendricks, S. , Leinweber, V. T. and Haas, C. (2008)
Sea ice thickness measurements in the Trans Polar Drift in 2007, another year of minimum Arctic sea ice extent. ,
23rd International Polar Meeting of the German Society of Polar Science. .
hdl:10013/epic.30240

Conference -Poster
Krumpen, T. , Haas, C. , Busche, T. and Dierking, W. (2008)
Spatial and temporal variability of sea ice processes in the Laptev sea using ASAR data ,
International Workshop on Advances in SAR Oceanography from ENVISAT and ERS Missions, Frascatti, Italy, Jan. 2008. .
hdl:10013/epic.37111

Conference -Poster
Rabenstein, L. , Lobach, J. and Haas, C. (2007)
Development and First Results of a new Airplane Based Fixed Wing Electromagnetic Induction Sea Ice Thickness Sounder ,
2007 Fall Meeting of the American Geophysical Union. .
hdl:10013/epic.30241
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Conference -Talk
Rabenstein, L. , Lobach, J. and Haas, C. (2007)
Entwicklung eines flugzeuggestützten EM Systems zur Bestimmung von Meereisdicken ,
67. Jahrestagung der Deutschen Geophysikalischen Gesellschaft. .
hdl:10013/epic.30239
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Conference -Poster
Hendricks, S. , Haas, C. and Rabenstein, L. (2007)
Implications of 3D structures in sea ice on Helicopter-EM ice thickness estimates ,
Sea Ice Summer School, Longyearbyen, Svalbard. .
hdl:10013/epic.33201
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Conference -Conference paper
Thiede, J. , Biebow, N. , Haas, C. and Klages, M. (2007)
Need for novel research approaches, infrastructure and technologies for the exploration of the polar environment ,
Climate Change and Natural Hazard Series .
hdl:10013/epic.28179

Conference -Talk
Thiede, J. , Biebow, N. , Haas, C. and Klages, M. (2007)
Needs for Novel Research Approaches, Infrastructures and Technologies for he Exploration of the Polar Environments/Report from Session 6 Research Infrastructures ,
International Symposium of the European Commission "Polar Environment and Climate", 05.-06.03, Brussels. .
hdl:10013/epic.30966

Conference -Poster
Hendricks, S. , Hutchings, J. , Haas, C. and Martin, T. (2007)
Short Term Variability of Sea Ice Thickness in the Beaufort Sea ,
AGU Fall Meeting. .
hdl:10013/epic.33192
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Conference -Conference paper
Haas, C. (2006)
Airborne electromagnetic sea ice thickness sounding in shallow, brackish water environments of the Caspian and Baltic Seas ,
Proceedings of OMAE2006 25th International Conference on Offshore Mechanics and Arctic Engineering, June 4-9, 2006, Hamburg, Germany .
hdl:10013/epic.25085
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Conference -Talk
Martin, T. , Haas, C. and Gerdes, R. (2006)
Arctic sea ice drift and deformation in models and observations ,
Seminar, Department of Meteorology at Stockholm University (MISU), Stockholm, SwedenJune 2006. .
hdl:10013/epic.26447

Conference -Conference paper
Cullen, R. , Davidson, M. W. J. , Drinkwater, M. R. , Francis, C. R. , Haas, C. , Hawley, R. L. , Mavrocordatos, C. M. , Morris, E. M. , Rack, W. , Ratier, G. , Viau, P. and Wingham, D. J. (2006)
ESAs new range of radar altimeters for the extraction of geophysical parameters from land, sea ice and ocean surfaces ,
Proceedings of the Symposium on 15 Years of Progress in Radar Altimetry, 13-18 March 2006, Venice, Italy, Paper No. 507, ESA SP-614, July 2006. .
hdl:10013/epic.26071
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Conference -Poster
Hendricks, S. , Haas, C. , Göbell, S. and Haapala, J. (2006)
Laser and Radar (LaRa) Surface Elevation Retrieval and EM Sea Ice Thickness Measurements in the Baltic Sea ,
European Geosciences Union - Gereral Assembly, Vienna. .
hdl:10013/epic.33193
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Conference -Conference paper
Dierking, W. , Busche, T. , von Saldern, C. , Hartmann, J. , Haas, C. , Lüpkes, C. , Hajnsek, I. , Scheiber, R. , Horn, R. , Fischer, J. and Dall, J. (2006)
Sea ice deformation mapping by means of SAR ,
EUSAR 2006 Conference Proceedings. .
hdl:10013/epic.24885

Conference -Talk
Hendricks, S. , Haas, C. and Haapala, J. (2006)
Vergleich von Laser- & Radaraltimetrie über Meereis in der Ostsee mit elektromagnetischer Eisdickensondierung ,
Jahrestagung der Deutschen Geophysikalischen Gesellschaft 2006 6. - 9. März 2006, Bremen. .
hdl:10013/epic.25010
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Conference -Poster
Herber, A. , Bartsch, I. , Birnbaum, G. , Gernandt, H. , Haas, C. , Hartmann, J. , Hass, C. , Jacobi, H. W. , Jokat, W. , Lemke, P. , Lüpkes, C. , Miller, H. , Neuber, R. , Nixdorf, U. , Rack, W. , Steinhage, D. and Treffeisen, R. (2005)
AWI aircraft operations in the last 20 years and future prospects ,
22. Internationale Polartagung Deutsche Gesellschaft für Polarforschung, 18-24 Sept., Jena, Germany. .
hdl:10013/epic.24251

Conference -Conference paper
von Saldern, C. , Busche, T. , Haas, C. and Dierking, W. (2005)
Analysis of Sea Ice Roughness and Thickness Variation for Improvement of SAR Ice Type Classification ,
Proceedings of the 2004 Envisat & ERS Symposium, 6-10 Sept.2004, Salzburg, Austria. European Space Agency. Compiled by H. Lacoste and L. Ouwehand. SP-572 .
hdl:10013/epic.21809
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Conference -Invited talk
Haas, C. (2005)
Antarctic sea ice surface processes: Pure physics or controlled by biology? ,
GORDON RESEARCH CONFERENCE ON POLAR MARINE SCIENCE: Climate Feedbacks and Trophic Shifts in Polar Seas. 13-18 March 2005, Four Point Sheraton Harbortown, Ventura, California. .
hdl:10013/epic.23368

Conference -Conference paper
Busche, T. , von Saldern, C. , Haas, C. and Dierking, W. (2005)
Comparison of Helicopter-borne Measurements of Sea Ice Thickness and Surface Roughness with SAR Signatures ,
Proceedings of the 2004 Envisat & ERS symposium : 6 - 10 September 2004, Salzburg, Austria / European Space Agency. Comp. by H. Lacoste ...pp. (ESA SP ; 572) .
hdl:10013/epic.26098
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Conference -Conference paper
Haas, C. , Dierking, W. , Busche, T. and Hölemann, J. (2005)
Envisat ASAR monitoring of polynya processes and sea ice production in the Laptev Sea ,
Proceedings, ESA Envisat Symposium, Salzburg, September 2004. .
hdl:10013/epic.23366
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Conference -Conference paper
Karvonen, J. , Similä, M. , Hallikainen, M. and Haas, C. (2005)
Estimation of Equivalent Deformed Ice Thickness from Baltic Sea Ice ,
Proceedings International Geoscience and Remote Sensing Symposium, IGARSS05 .
hdl:10013/epic.25052
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Conference -Talk
von Saldern, C. , Busche, T. , Haas, C. and Dierking, W. (2005)
Implications of sea ice roughness variability for SAR ice type classification ,
"Annual Meeting of the Deutche Physikalische Gesellschaft (DPG), March 4-9, Berlin, Germany". .
hdl:10013/epic.23055

Conference -Invited talk
Haas, C. (2005)
Is Arctic sea ice melting? - New challenges for Arctic Technology ,
Danish Arctic Technology Society Annual Meeting (Medlemsmoede 05-2005), May 19, 2005, Danish Polarcenter, Copenhagen, Denmark. .
hdl:10013/epic.23370
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Conference -Invited talk
Haas, C. (2005)
Meereis oder weniger Eis? - Eisdickenmessungen in Arktis und Antarktis ,
Landesausschuss SCAR (Scientific Committee on Antarctic Research), June 1-2, 2005, Gustav Stresemann Institut, Bonn. .
hdl:10013/epic.23371

Conference -Conference paper
Similä, M. , Karvonen, J. , Hallikainen, M. and Haas, C. (2005)
On SAR-based Statistical Ice Thickness Estimation in the Baltic Sea ,
Proceedings International Geoscience and Remote Sensing Symposium IGARSS 05 .
hdl:10013/epic.25053
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Conference -Invited talk
Haas, C. (2005)
Sea ice thickness measurements: Resolving the interplay between ice dynamics and thermodynamics ,
CliC First Science Conference. Cryosphere - The "Frozen" Frontier of Climate Science: Theory, Observations, and Practical Applications. 11-15 April 2005. China Meteorological Administration, Beijing, China. .
hdl:10013/epic.23369

Conference -Conference paper
Haas, C. (2004)
Airborne EM sea-ice thickness profiling over brackish Baltic sea water ,
Proceedings of the 17th international IAHR symposium on ice, June 21-25, 2004, St. Petersburg, Russia, All-Russian Research Institute of Hydraulic Engineering (VNIIG), Saint Petersburg, Russia .
hdl:10013/epic.24469
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Conference -Conference paper
Haas, C. (2004)
Arctic sea ice thickness variability in the 1990s retrieved from EM sounding ,
Arctic Climate System Study (ACSYS). 2004. Progress in Understanding the Arctic Climate System: The ACSYS Dacade and Beyond. Proceedings of the ACSYS Final Science Conference, St. Petesburg, RussiaNov. 2003. WCRP-118 (CD); WMO/TD No. 1232. September 2004. .
hdl:10013/epic.23367
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Conference -Conference paper
Gerland, S. , Perovich, D. K. , Haapala, J. , Harms, I. , Ivanov, B. V. , Pedersen, C. A. , Haas, C. , Hansen, E. , Karcher, M. , Magnusdottir, G. , McPhee, M. G. , Morison, J. , Winther, J. G. and Njastad, B. (2004)
Arctic sea ice, climate change and related climate feedback mechanisms ,
Proceedings of the ACIA International Scientific Symposium on Climate Change in the Arctic, Reykjavik, Iceland, 9-12 November 2004,. .
hdl:10013/epic.21783
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Conference -Conference paper
Karvonen, J. , Similä, M. , Haapala, J. , Haas, C. and Mäkynen, M. (2004)
Comparison of SAR Data and Operational Sea Ice Products to EM Ice Thickness Measurements in the Baltic Sea ,
International Geoscience and Remote Sensing Symposium (IGARSS), 5. Proceedings. IEEE International Geoscience and Remote Sensing Symposium (IGARSS'04), Anchorage, Alaska. .
hdl:10013/epic.21482
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Conference -Conference paper
Pfaffling, A. , Haas, C. and Reid, J. E. (2004)
Empirical inversion of HEM data for sea ice thickness mapping ,
Extended abstracts, 10th European Meeting of Environmental and Engineering Geophysics (EAGEs Near Surface 2004), A037, Utrecht, The Netherlands. .
hdl:10013/epic.24044
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Conference -Poster
Nicolaus, M. and Haas, C. (2004)
Observation and modeling of snow melt and superimposed ice formation on sea ice ,
Doktorandentag 2004. .
hdl:10013/epic.21553
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Conference -Poster
Damm, E. , Schauer, U. , Mackensen, A. , Rudels, B. and Haas, C. (2004)
Sae-air flux of bottom-released methane in latent heat polynyas ,
Bjerknes Conference, 1-3 Sept., Bergen, Norway. .
hdl:10013/epic.21743

Conference -Talk
Pfaffling, A. and Haas, C. (2004)
An empirical alternative to inversion in HEM ,
64. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, 8-12 März, Berlin. .
hdl:10013/epic.24048

Conference -Conference paper
Haas, C. and Jochmann, P. (2003)
Continuous EM and ULS thickness profiling in support of ice force measurements ,
Loeset, S., Bonnemaire, B., Bjerkas, M. (Eds.), Proceedings of the 17th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC ´03, Trondheim, Norway. Department of Civil and Transport Engineering, Norwegian University of Sci .
hdl:10013/epic.19621
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Conference -Poster
Ivchenko, V. , Gerdes, R. , Haas, C. , Karcher, M. , Kauker, F. and Köberle, C. (2003)
Ice transport through Fram Strait: analysis of backward trajectories ,
EGS-AGU-EUG Joint Assembly, Nice, 10.4.2003, EAE03-A-08865. .
hdl:10013/epic.30290

Conference -Poster
Nicolaus, M. and Haas, C. (2003)
Observation and modelling of superimposed ice formation on summery sea ice in Antarktica ,
DFG-Kolloquium, 23.-24.Maerz, Bremerhaven, Deutschland. .
hdl:10013/epic.19155
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Conference -Conference paper
Haas, C. , Edeler, H. , Schürmann, M. , Lobach, J. and Sengpiel, K. P. (2002)
First operation of AWI HEM-bird for sea-ice thickness sounding ,
Proceedings. Jahrestagung der Deutschen Geophysikalischen Gesellschaft DGG .
hdl:10013/epic.16052
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Conference -Poster
Sauter, E. , Klages, M. , Schlüter, M. , Soltwedel, T. , Premke, K. , Budéus, G. , Ohm, K. and Haas, C. (2002)
Innovative Technologies in Arctic Research - Recent Activities Conducted at AWI (Poster) ,
Workshop to promote the development of instrumentation for Arctic Ocean exploration: Technology for assessing the water column and the seafloor, Moss Landing, California, USA.-18.10.2002. .
hdl:10013/epic.16639

Conference -Conference paper
Nicolaus, M. , Haas, C. and Bareiss, J. (2002)
Observations of superimposed ice formation at melt-onset on fast ice on Kongsfjorden, Svalbard ,
Oerbaeck, J.B., Holmen, K., Neuber, R., Plag, H.P., Lefauconnier, B., de Prisco, G. & Ito, H. (Eds.): The Changing Physical Environment - Proceedings from the 6th Ny Alesund international scientific seminar. Norsk Polarinstitutt INTERNRAPPORT, 10, Tromsö .
hdl:10013/epic.16564
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Conference -Conference paper
Haas, C. (2002)
Validation of CryoSat Sea-Ice Products: Instruments and Methods ,
Proceedings, International Geoscience and Remote Sensing Symposium 2002, IGARSS02, Toronto, Canada .
hdl:10013/epic.16053
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Conference -Poster
Gianelli, V. , Thomas, D. N. , Haas, C. , Kattner, G. , Kennedy, H. and Dieckmann, G. (2000)
Behaviour of dissolved organic matter and inorganic nutrients during experimental sea ice formation ,
International Glaciological Society, International Symposium, Fairbanks, USA. .
hdl:10013/epic.20461

Conference -Talk
Thomas, D. N. , Kattner, G. , Engbrodt, R. , Giannelli, V. , Kennedy, H. , Haas, C. and Dieckmann, G. (2000)
Dissolved organic matter in Antarctic sea ice ,
International Glaciological Society, International Symposium, Fairbanks, USA. .
hdl:10013/epic.20460

Conference -Conference paper
Haas, C. (1999)
Ice tank investigations of the microstructure of artificial sea ice grown under different boundary conditions during INTERICE II / Evers, K. , Grüne, J. and Os, A. v. (editors) ,
Proc. Of HYDRALAB workshop in Hannover, Germanyth-19th February 1999 .
hdl:10013/epic.15006
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Conference -Poster
Eicken, H. , Pfirman, S. , Krouse, H. R. , Haas, C. , Freitag, J. and Mackensen, A. (1999)
Tracer studies of Arctic sea-ice growth and ablation ,
IUGG-Tagung, Birmingham, UK. .
hdl:10013/epic.20297

Conference -Conference paper
Lensu, M. and Haas, C. (1998)
Comparison of ice thickness from ship based video and field data ,
Ice in surface waters. Proc 14th Internat Symp on Ice, Potsdam, N Y (H T Shen, ed ) Balkema, Rotterdam .
hdl:10013/epic.12540

Miscellaneous

Miscellaneous
Heygster, G. , Hendricks, S. , Kaleschke, L. , Mills, P. , Stammer, D. , Tonboe, R. and Haas, C. (2009)
L-Band Radiometry for Sea-Ice Applications / Maaß, N. (editor) ,
[Miscellaneous]
hdl:10013/epic.33196
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Miscellaneous
Haas, C. , Hanson, S. and Hendricks, S. (2008)
CryoVEx 2008: field report of in-situ validation measurements ,
[Miscellaneous]
hdl:10013/epic.36117
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Miscellaneous
Haas, C. , Haapala, J. , Hanson, S. , Rabenstein, L. , Rinne, E. and Wilkinson, J. (2006)
CryoVEx 2006: field report ,
[Miscellaneous]
hdl:10013/epic.36116
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"Berichte zur Polar- und Meeresforschung"

"Berichte zur Polar- und Meeresforschung" Expedition reports
El Naggar, S. E. D. , Dieckmann, G. , Haas, C. , Schröder, M. and Spindler, M. (2007)
The Expeditions ANTARKTIS-XXII/1 and XII/2 of the Research Vessel "Polarstern" in 2004/2005 ,
Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 551 , 259 p. .
hdl:10013/epic.27429
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"Berichte zur Polar- und Meeresforschung" Expedition reports
Haas, C. and Lieser, J. L. (2003)
Sea ice conditions in the transpolar drift in August/September 2001 : observations during POLARSTERN cruise ARKTIS XVII/2 ,
Berichte zur Polar- und Meeresforschung (Reports on Polar and Marine Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 441 , 123 p. .
hdl:10013/epic.10446
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"Berichte zur Polar- und Meeresforschung" PhD
Haas, C. (1997)
Bestimmung der Meereisdicke mit seismischen und elektromagnetisch-induktiven Verfahren = Sea-ice thickness measurements using seismic and electromagnetic-inductive techniques ,
Berichte zur Polarforschung (Reports on Polar Research), Bremerhaven, Alfred Wegener Institute for Polar and Marine Research, 223 , 161 p. .
hdl:10013/epic.10224
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"Polarforschung"

"Polarforschung"
Dierking, W. and Haas, C. (2012)
Advances of Sea-Ice Observations since ARCTIC 91 ,
Polarforschung, Bremerhaven, Alfred Wegener Institute for Polar and Marine Research & German Society of Polar Research, 82 (1), pp. 1-18 .
hdl:10013/epic.40430
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PANGAEA Documentation

PANGAEA Documentation
Haas, C. (2012)
Helicopter-borne laser profiling of sea ice surface roughness, Riegl 3100HS ,
Bremerhaven, PANGAEA .
hdl:10013/epic.39659
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PANGAEA Documentation
Willmes, S. , Haas, C. , Nicolaus, M. , Bareiss, J. , and (2009)
Onset dates of annual snowmelt on Antarctic sea ice, further details and pictures, doi:10.1594/PANGAEA.701389 ,
Bremerhaven, PANGAEA .
hdl:10013/epic.38813
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PANGAEA Documentation
Haas, C. and Hendricks, S. (2005)
EM ice thickness measurements during 2005 IRIS field campaign - March 07 to March 18, 2005 - IRIS Deliverable 30 ,
Bremerhaven, PANGAEA .
hdl:10013/epic.39578
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PANGAEA Documentation
Haas, C. (2004)
EM ice thickness measurements during 2004 IRIS field campaign : February 05 to March 17, 2004 ,
IRIS 2004 field campaign., Bremerhaven, PANGAEA .
hdl:10013/epic.32241
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PANGAEA Documentation
Haas, C. (2004)
EM ice thickness measurements during GreenICE 2004 field campaign ,
GreenICE Deliverable D11, Bremerhaven, PANGAEA, 24 p. .
hdl:10013/epic.32238
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PANGAEA Documentation
Haas, C. , Alexandrov, V. , Kern, S. , Lieser, J. , Lobach, J. , Martin, A. , Pfaffling, A. and Willmes, S. (2004)
Sea ice remote sensing, thickness profiling, and ice and snow analyses during Polarstern cruise Ark 19/1 / CryoVex2003 in the Barents Sea and Fram Strait, February 28 April 24, 2003: Cruise report ,
Alfred Wegener Institute Bremerhaven, Germany, Bremerhaven, PANGAEA, 29 p. .
hdl:10013/epic.32818
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PANGAEA Documentation
Haas, C. (2003)
IRIS data report: Airborne EM measurements of Baltic ice thickness in February 2003 ,
Ice Ridging Information for Decision Making in Shipping Operations., Bremerhaven, PANGAEA .
hdl:10013/epic.32237
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PANGAEA Documentation
Haas, C. (2003)
IRIS field report: Airborne EM measurements of Baltic ice thickness in February 2003: The campaign ,
Ice Ridging Information for Decision Making in Shipping Operations., Bremerhaven, PANGAEA .
hdl:10013/epic.32236
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PANGAEA Documentation
Haas, C. (2003)
Methods of ground-based electromagnetic (EM) and drill-hole ice and snow thickness measurements ,
Christian Haas, Alfred Wegener Institute, Bremerhaven, Germany., Bremerhaven, PANGAEA .
hdl:10013/epic.32315
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PANGAEA Documentation
Haas, C. and Lieser, J. L. (2001)
Sea ice conditions in the Transpolar Drift in August/September 2001 - Observations during POLARSTERN cruise ARKTIS 17/2 ,
Polarforschung, Bremerhaven, PANGAEA, 125 p. .
hdl:10013/epic.38360

PANGAEA Documentation
Haas, C. (2000)
Helicopter-borne laser profiling of sea ice surface roughness, IBEO PS100EL ,
Christian Haas, Alfred Wegener Institute, Bremerhaven, Germany., Bremerhaven, PANGAEA .
hdl:10013/epic.32316
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