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Items where Author is "Haas, Christian"

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Number of items: 206.

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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Article
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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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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Article
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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Article
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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"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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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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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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Article
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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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

Article
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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Article
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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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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Article
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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Article
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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Article
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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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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Article
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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Article
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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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

Article
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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Article
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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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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Article
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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Article
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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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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Article
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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Article
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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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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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

Article
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

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

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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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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Article
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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Article
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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Article
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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Article
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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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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Article
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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Article
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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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

Article
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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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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Article
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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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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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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Article
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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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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Article
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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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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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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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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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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Article
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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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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Article
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

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

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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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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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

Article
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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Article
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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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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Article
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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Article
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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Article
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

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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Article
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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Article
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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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

Article
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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Article
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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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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Article
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

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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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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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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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

"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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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

Article
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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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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Article
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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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

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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Article
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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Article
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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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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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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Article
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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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

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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Article
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

Article
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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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

Article
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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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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Article
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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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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Article
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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Article
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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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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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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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

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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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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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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Article
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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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

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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Article
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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Article
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

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

Article
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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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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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

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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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

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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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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Article
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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Article
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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"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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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

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

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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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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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

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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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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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

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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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

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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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

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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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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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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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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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

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

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

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

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 -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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"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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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

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