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Stroeve, J. , Vancoppenolle, M. , Veyssiere, G. , Lebrun, M. , Castellani, G. ![]() ![]() A Multi-Sensor and Modeling Approach for Mapping Light Under Sea Ice During the Ice-Growth Season ,
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Smith, J. N. , Karcher, M. ![]() A changing Arctic Ocean: How measured and modeled 129129I distributions indicate fundamental shifts in circulation between 1994 and 2015 ,
Journal of Geophysical Research-Oceans,
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Castellani, G. ![]() ![]() ![]() ![]() ![]() Freezing in the Sun ,
Frontiers Young Minds
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Sumata, H. ![]() ![]() ![]() Covariance of optimal parameters of an Arctic sea ice-ocean model ,
Monthly Weather Review
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Sumata, H. ![]() ![]() ![]() Simultaneous Parameter Optimization of an Arctic Sea Ice–Ocean Model by a Genetic Algorithm ,
Monthly Weather Review
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doi:https://doi.org/10.1175/MWR-D-18-0360.1
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Kaminski, T. , Kauker, F. ![]() ![]() ![]() ![]() Arctic Mission Benefit Analysis: impact of sea ice thickness, freeboard, and snow depth products on sea ice forecast performance ,
The Cryosphere,
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doi:https://doi.org/10.5194/tc-12-2569-2018
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Sumata, H. ![]() ![]() ![]() ![]() ![]() Decorrelation scales for Arctic Ocean hydrogpraphy - Part I: Amerasian Basin ,
Ocean Science,
14
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pp. 161-185
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doi:https://doi.org/10.5194/os-14-161-2018
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Rutgers van der Loeff, M. ![]() ![]() ![]() ![]() Radium Isotopes Across the Arctic Ocean Show Time Scales of Water Mass Ventilation and Increasing Shelf Inputs ,
Journal of Geophysical Research: Oceans
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doi:https://doi.org/10.1029/2018JC013888
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Rutgers van der Loeff, M. , Kipp, L. , Charette, M. A. , Moore, W. S. , Black, E. , Stimac, I. , Charkin, A. , Bauch, D. , Valk, O. , Karcher, M. , Krumpen, T. , Casacuberta, N. , Smethie, W. and Rember, R.
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Radium Isotopes Across the Arctic Ocean Show Time Scales of Water Mass Ventilation and Increasing Shelf Inputs ,
Journal of Geophysical Research: Oceans
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doi:https://doi.org/10.1029/2018JC013888
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Ulfsbo, A. , Jones, E. M. , Casacuberta, N. , Korhonen, M. , Rabe, B. ![]() ![]() Rapid changes in anthropogenic carbon storage and ocean acidification in the intermediate layers of the Eurasian Arctic Ocean: 1996-2015 ,
Global Biogeochemical Cycles,
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Crépin, A. S. , Karcher, M. ![]() Arctic climate change, economy and society: integrated perspectives ,
AMBIO,
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Gascard, J. C. , Riemann-Campe, K. ![]() ![]() Future sea ice conditions and weather forecasts in the Arctic: Implications for Arctic shipping ,
AMBIO
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Karcher, M. ![]() ![]() Modelling dispersal of radioactive contaminants in Arctic waters as a result of potential recovery operations on the dumped submarine K-27 ,
Marine Pollution Bulletin,
116
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doi:https://doi.org/10.1016/j.marpolbul.2017.01.034
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Aksenov, Y. , Karcher, M. ![]() ![]() Arctic pathways of Pacific Water: Arctic Ocean Model Intercomparison experiments ,
Journal of Geophysical Research-Oceans,
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doi:https://doi.org/10.1002/2015JC011299
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Brown, J. , Hosseini, A. , Karcher, M. ![]() ![]() Derivation of risk indices and analysis of variablility for the management of incidents involving the transport of nuclear materials in the Northern Seas ,
Journal of Environmental Management,
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Kauker, F. ![]() ![]() Model analysis of worst place scenarios for nuclear accidents in the northern marine environment ,
Environmental Modelling & Software,
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Janout, M. ![]() ![]() ![]() ![]() Kara Sea freshwater transport through Vilkitsky Strait: Variability, forcing, and further pathways toward the western Arctic Ocean from a model and observations ,
Journal of Geophysical Research-Oceans
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Jung, T. ![]() ![]() ![]() Polar-lower latitude linkages and their role in weather and climate prediction ,
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Haine, T. W. , Curry, B. , Gerdes, R. , Hansen, E. , Karcher, M. ![]() Arctic freshwater export: Status, mechanisms, and prospects ,
Global and Planetary Change,
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Sumata, H. ![]() ![]() ![]() Empirical error functions for monthly mean Arctic sea-ice drift ,
Journal of Geophysical Research: Oceans,
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Kaminski, T. , Kauker, F. ![]() ![]() Exploring the utility of quantitative network design in evaluating Arctic sea ice thickness sampling strategies ,
The Cryosphere,
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Kauker, F. ![]() ![]() ![]() ![]() Seasonal sea ice predictions for the Arctic based on assimilation of remotely sensed observations ,
The Cryosphere Discussions,
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Sumata, H. ![]() ![]() ![]() Uncertainty of Arctic summer ice drift assessed by high-resolution SAR data ,
Journal of Geophysical Research: Oceans,
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Sumata, H. ![]() ![]() ![]() An intercomparison of Arctic ice drift products to deduce uncertainty estimates ,
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Itkin, P. , Karcher, M. ![]() Is weaker Arctic sea ice changing the Atlantic water circulation? ,
Journal of Geophysical Research: Oceans,
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Sumata, H. ![]() ![]() ![]() A comparison between gradient descent and stochastic approaches for parameter optimization of a sea ice model ,
Ocean Science,
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Jahn, A. , Aksenov, Y. , de Cuevas, B. , de Steur, L. , Haekkinen, S. , Hansen, E. , Herbaut, C. , Houssais, M. N. , Karcher, M. ![]() ![]() Arctic Ocean freshwater: How robust are model simulations? ,
Journal of Geophysical Research-Oceans,
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Karcher, M. ![]() ![]() Recent changes in Arctic Ocean circulation revealed by 129-Iodine observations and modelling ,
Journal of Geophysical Research - Oceans.
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Karcher, M. ![]() ![]() Arctic Ocean warming and its consequences for the Denmark Strait overflow ,
J. Geophys. Res., 116, C02037
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Beszczynska-Möller, A. , Woodgate, R. A. , Lee, C. , Melling, H. and Karcher, M. ![]() A Synthesis of Exchanges Through the Main Oceanic Gateways to the Arctic Ocean, ,
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Rabe, B. ![]() ![]() ![]() An assessment of Arctic Ocean freshwater content changes from the 1990s to the 2006-2008 period ,
Deep-Sea Research I, 58185,
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Karcher, M. ![]() On the Potential for Climate Change Impacts on Marine Anthropogenic Radioactivity in the Arctic Regions ,
Marine Pollution Bulletin, Volume 60, Issue 8, August 2010, Pages 1151-1159
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doi:https://doi.org/10.1016/j.marpolbul.2010.05.003
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Kauker, F. ![]() ![]() Adjoint analysis of the 2007 all time Arctic sea-ice minimum ,
Geophysical Research Letters
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de Steur, L. , Hansen, E. , Gerdes, R. , Karcher, M. ![]() Freshwater Fluxes in the East Greenland Current: A decade of observations ,
Geophysical Research Letters, 36, L23611.
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Rabe, B. ![]() ![]() ![]() Freshwater components and transports in the Fram Strait: - recent observations and changes since the late 1990s ,
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Kauker, F. ![]() ![]() Retrospective Summary Comments SIO 2009 AWI/FastOpt/OASys ,
Sea Ice Outlook: monthly reports June, July, August, Retrospective Summary.
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Kauker, F. ![]() ![]() Arctic Sea Ice in summer 2008 - an outlook ,
Sea Ice Outlook: monthly reports
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Kauker, F. ![]() ![]() Modeling the 20th century Arctic Ocean/Sea Ice system: Reconstruction of surface forcing ,
Journal of Geophysical Research, 113, C09027.
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Dickson, R. R. , Rudels, B. , Dye, S. , Karcher, M. ![]() Current Estimates of Freshwater Flux through Arctic & Subarctic seas. ,
Progress in oceanography,
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Häkkinen, S. , Dupont, F. , Karcher, M. ![]() ![]() Model simulation of Greenland Sea upper-ocean variability ,
Journal of geophysical research-oceans, 112, C06S90
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doi:https://doi.org/10.1029/2006JC003687
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Karcher, M. ![]() ![]() On the Dynamics of Atlantic Water circulation in the Arctic Ocean ,
Journal of geophysical research-oceans, 112, C04S02
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doi:https://doi.org/10.1029/2006JC003630
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Dorn, W. ![]() ![]() ![]() ![]() ![]() Sensitivities and uncertainties in a coupled regional atmosphere-ocean-ice model with respect to the simulation of Arctic sea ice ,
Journal of Geophysical Research, 112, D10118
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Holloway, G. , Dupont, F. , Golubeva, E. , Häkkinen, S. , Hunke, E. , Karcher, M. ![]() ![]() Water properties and circulation in Arctic Ocean models ,
Journal of geophysical research-oceans, 112, C04S03
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doi:https://doi.org/10.1029/2006JC003642
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Karcher, M. ![]() ![]() Modeling of δ18O and 99Tc dispersion in Arctic and subarctic seas ,
ASOF Newsletter,Issue No 5, April 2006
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hdl:10013/epic.24814
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Richter-Menge, J. , Overland, J. , Proshutinsky, A. , Romanowsky, V. , Gascard, J. C. , Karcher, M. ![]() The Poles - Arctic ,
in: State of the Climate 2005, K.A.Shein (Ed.), B. Am. Meteorol. Soc., 87, S46-S53, NOAA/NESDIS/NCDC & American Meteorological Society.
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Dorn, W. ![]() ![]() ![]() ![]() ![]() Sea-ice simulations with AWI's coupled regional atmosphere-ocean-ice model HIRHAM-NAOSIM ,
in: Global Implications of Arctic Climate Processes and Feedbacks (edited by A. Rinke and K. Dethloff), Reports on Polar and Marine Research, Vol. 520, p.,
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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. ![]() ![]() State of the Arctic Report. ,
NOAA OAR Special Report, NOAA/OAR/PMEL, Seattle, WA
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hdl:10013/epic.25952
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Proshutinsky, A. , Yang, J. , Gerdes, R. , Karcher, M. ![]() ![]() Arctic Ocean Study - Synthesis of Model Results and Observations ,
EOS, Transactions, American Geophysical Union,
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Karcher, M. ![]() ![]() Arctic Ocean change heralds North Atlantic freshening ,
Geophysical research letters, 32(21), L21606
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doi:https://doi.org/10.1029/2005GL023861
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Dowdall, M. , Gerland, S. , Karcher, M. ![]() Geostatistical Methods Applied to Sampling Optimisation for the Temporal Monitoring of Technetium-99 in the Arctic Marine Environment. ,
StrålevernRapport 2005:19. Østerås: Norwegian Radiation Protection Authority, 2005
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Kauker, F. ![]() ![]() Impact of North Atlantic Current changes on the Nordic Seas and the Arctic Ocean ,
Journal of geophysical research-oceans, Vol. 110(C12), C12002
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doi:https://doi.org/10.1029/2004JC002624
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Harms, I. and Karcher, M. ![]() Kara Sea freshwater dispersion and export in the late 1990s ,
Journal of geophysical research-oceans, 110, C08007
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doi:https://doi.org/10.1029/2004JC002744
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Drange, H. , Gerdes, R. , Gao, Y. , Karcher, M. ![]() ![]() Ocean General Circulation Modelling of the Nordic Seas ,
in: The Nordic Seas: An Integrated Perspective, Drange, Dokken, Furevik, Gerdes and Berger (Eds.), AGU Monograph 158,American geophysical Union, Washington DC, pp.,
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Polyakov, I. V. , Beszczynska, A. , Carmack, E. C. , Dmitrenko, I. A. , Fahrbach, E. , Frohlov, I. E. , Gerdes, R. , Hansen, E. , Holfort, J. , Ivanov, V. V. , Johnson, M. A. , Karcher, M. ![]() ![]() One more step toward a warmer Arctic ,
Geophysical research letters, 32, LI7605
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doi:https://doi.org/10.1029/2005GL023740
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Dowdall, M. , Gerland, S. , Karcher, M. ![]() Optimization of sampling for the temporal monitoring of Technetium-99 in the Arctic marine environment ,
Journal of environmental radioactivity, Vol 84/1 pp.,
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doi:https://doi.org/10.1016/j.jenvrad.2005.04.010
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Simstich, J. , Harms, I. , Karcher, M. ![]() Recent freshening in the Kara sea (Siberia) recorded by stable isotopes in Arctic bivalve shells, ,
Journal of geophysical research-oceans, 110, C08006
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Gerdes, R. , Hurka, J. , Karcher, M. ![]() ![]() Simulated history of convection in the Greenland and Labrador seas 1948-2001 ,
AGU monograph Climate Variability of the Nordic Seas, Bjerknes Centre for Climate Research, Bergen, Norway,
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Uotila, P. , Holland, D. M. , Morales Maqueda, M. A. , Häkkinen, S. , Holloway, G. , Karcher, M. ![]() ![]() An energy-diagnostics intercomparison of coupled ice-ocean Arctic models ,
Ocean modelling,
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Steiner, N. , Holloway, G. , Gerdes, R. , Haekkinen, S. , Holland, D. , Karcher, M. ![]() ![]() Comparing modeled streamfunction, heat and freshwater content in the Arctic Ocean ,
Ocean modelling,
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Karcher, M. ![]() ![]() Tracer Studies with Arctic and Subarctic Coupled Ice-ocean Models: Dispersion of Radionuclides and Oxygen Isotopes ,
International Conference on Isotopes in Environmental Studies - Aquatic Forum 2004, Book of Extended Synopses,IAEA-CN-118,
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Karcher, M. ![]() The dispersion of technetium-99 in the Nordic Seas and the Arctic Ocean: a comparison of model results and observations ,
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Karcher, M. ![]() ![]() Arctic warming - Evolution and Spreading of the 1990s warm event in the Nordic Seas and the Arctic Ocean, ,
Journal of Geophysical Research, Vol. 108(C2)
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Karcher, M. ![]() ![]() ![]() Atlantic Water flow to the Kara Sea - comparing model results with observations ,
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Gerdes, R. , Karcher, M. ![]() ![]() Causes and development of repeated Arctic Ocean warming events ,
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Uotila, P. , Holland, D. M. , Haekkinen, S. , Holloway, G. , Steiner, N. , Karcher, M. ![]() ![]() An Energy Diagnostics Intercomparison of Coupled Ice-Ocean Arctic Models ,
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Gerland, S. , Lind, B. , Dowdall, M. , Karcher, M. ![]() Technetium-99 in seawater in the West Spitsbergen Current and adjacent areas ,
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Kauker, F. ![]() ![]() Variability of Arctic and North Atlantic sea ice: A combined analysis of model results and observations from 1978 to 2001 ,
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Rinke, A. ![]() ![]() ![]() ![]() A case study of the anomalous Arctic sea ice conditions during 1990: Insights from coupled and uncoupled regional climate model simulations ,
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Karcher, M. ![]() ![]() Modelling decadal variability of Arctic sea ice ,
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Karcher, M. ![]() Pathways and modification of the upper and intermediate waters of the Arctic Ocean, ,
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Steele, M. , Ermold, W. , Holloway, G. , Haekkinen, S. , Holland, D. , Karcher, M. ![]() ![]() Adrift in the Beaufort Gyre: A Model Intercomparison ,
Geophysical Research Letters, Vol. 28, No. 15,
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Brümmer, B. , Müller, G. , Affeld, B. , Gerdes, R. , Karcher, M. ![]() ![]() Cyclones over Fram Strait:Impact on sea ice and variability ,
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Proshutinsky, A. , Steele, M. , Zhang, J. , Holloway, G. , Steiner, N. , Hakkinen, S. , Holland, D. , Gerdes, R. , Köberle, C. , Karcher, M. ![]() Multinational effort studies differences among Arctic Ocean models ,
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Gerdes, R. , Karcher, M. ![]() ![]() Predicting the spread of radioactive substances from Kursk ,
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Dethleff, D. , Nies, H. , Harms, I. H. and Karcher, M. ![]() Dispersal of particle-bond and dissolved radionuclides through flaw lead produced sea-ice and dense water in the western Kara Sea ,
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Karcher, M. ![]() Estimation of water and ice fluxes in the Arctic for an improved box structure of the NRPA box model (Transport Programme) ,
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Article
Harms, I. H. , Karcher, M. ![]() Modelling Siberian river runoff -implications for contaminant transport in the Arctic Ocean- ,
Journal of Marine Systems, Vol. 27,
pp. 95-115
.
hdl:10013/epic.14274
|
|
Article
Dethleff, D. , Nies, H. , Harms, I. H. and Karcher, M. ![]() Transport of radionuclides by sea-ice and dense-water formed in western Kara Sea flaw leads ,
Journal of Marine Systems , Vol. 24, Nos. 3-4,
pp. 233-248
.
hdl:10013/epic.14578
|
|
Article
Nies, H. , Harms, I. H. , Karcher, M. ![]() Anthropogenic Radioactivity in the Arctic Ocean - Review of the results from the Joint German project ,
Science of the Total Environment,
237
(238),
pp. 181-191
.
hdl:10013/epic.14579
|
|
Article
Nies, H. , Harms, I. H. and Karcher, M. ![]() Anthropogenic Radioactivity in the Arctic Ocean -Review of the r esults from the Joint German project ,
The Science of the Total Environment,
237
(238),
pp. 181-191
.
hdl:10013/epic.14269
|
|
Article
Harms, I. H. and Karcher, M. ![]() Modeling the seasonal variability of hydrography and circulation in the Kara Sea ,
Journal of Geophysical Research , Vol. 104, 13,
431
.
hdl:10013/epic.14268
|
|
Article
Nies, H. , Harms, J. and Karcher, M. ![]() Anthropogenic radioactivity in the Nordic Seas and the Arctic Ocean: Results from a joint project ,
Deutsche Hydrographische Zeitschrift, Vol. 50,
pp. 313-343
.
hdl:10013/epic.14271
|
|
Article
Nies, H. , Harms, I. H. , Karcher, M. ![]() Anthropogenic radioactivity in the Nordic Seas and the Arctic Ocean: Results from a joint project ,
Deutsche Hydrographische Zeitschrift, Vol.50, No.4,
pp. 313-343
.
hdl:10013/epic.14577
|
|
Article
Karcher, M. ![]() Dynamic impact of oscillating sources on the North Atlantic deep circulation: a process study ,
Journal of Geophysical Research , Vol. 102,
pp. 10339-10352
.
hdl:10013/epic.14273
|
|
Article
Nies, H. , Bahe, C. , Dethleff, D. , Harms, I. H. and Karcher, M. ![]() Transport and dispersion of artificial radioactivity in the Arctic Ocean-Model studies and observations- ,
Radioprotection - Colloques, Vol 32, C2, special issue: Radionuclides in the Oceans (RADOC 96-97) Part I: Inventories, Behaviour and Processes,
pp. 407-416
.
hdl:10013/epic.14580
|
|
Article
Karcher, M. ![]() Spin-up and breakdown of source-driven deep North Atlantic flow over realistic bottom topography ,
Journal of Geophysical Research , Vol. 99,
pp. 12357-12373
.
hdl:10013/epic.14272
|
|
Article
Karcher, M. ![]() Storm surge simulations in the Zalew Wislany (Vistula Lagoon) using a 2-dimensional numerical model ,
Rozprawy Hydrotechniczne, Polish Academy of Science, Z. 49,
pp. 163-170
.
hdl:10013/epic.15075
|
|
Book
Nies, H. , Karcher, M. ![]() Transportmechanismen radioaktiver Substanzen im Arktischen Ozean-Numerische und experimentelle Studien am Beispiel der Barents- und Karasee ,
Berichte des Bundesamtes für Seeschiffahrt und Hydrographie Nr.21, Hamburg und Rostock,
134 p.
.
hdl:10013/epic.15076
|
|
Inbook
Karcher, M. ![]() ![]() Long-term variability of Atlantic water inflow to the Northern Seas: insights from model experiments ,
Arctic-Subarctic Ocean Fluxes: Defining the role of the Northern Seas in Climate, Editors: B. Dickson, J. Meincke and P. Rhines, Springer,
ISBN: 978-1-4020-6773-0
.
hdl:10013/epic.30223
|
|
Inbook
Gerdes, R. , Karcher, M. ![]() Simulating the long term variability of liquid freshwater export from the Arctic Ocean ,
Arctic-Subarctic Ocean Fluxes: Defining the role of the Northern Seas in Climate, Editors: B. Dickson, J. Meincke and P. Rhines, Springer,
ISBN: 978-1-4020-6773-0
.
hdl:10013/epic.30224
|
|
Inbook
Harms, I. H. and Karcher, M. ![]() Pathways of anthropogenic radionuclides in the northern oceans ,
in: Modelling Radioactivity in the Environment, Elsevier, M. Scott (Ed.), Section 2 Chapter 10,
ISBN: 0-08-043663-3
.
hdl:10013/epic.14648
|
|
Inbook
Harms, I. H. , Karcher, M. ![]() The use of hydrodynamic circulation models for simulating oceanic dispersion of radioactivity ,
in: 'Modelling Radioactivity in the Environment', Elsevier, M.Scott (Ed.), Section 1, Chapter 3,
ISBN: 0-08-043663-3
.
hdl:10013/epic.14936
|
|
Thesis
-PhD
Karcher, M. ![]() Dynamische Auswirkungen veränderlicher Quellen auf die Tiefenzirkulation des Nordatlantiks ,
PhD thesis,
Universitaet Hamburg.
hdl:10013/epic.15073
|
|
Conference
-Invited talk
Rutgers van der Loeff, M. ![]() ![]() ![]() ![]() ![]() Surface water changes during transit from North Pole to Fram Strait ,
Goldschmidt Conference,
Barcelona,
18 August 2019 - 23 August 2019
.
hdl:10013/epic.c9ffe526-069a-460c-a2b0-bf6e53bee67e
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() Simultaneous optimization of Arctic sea-ice model parameters by a genetic algorithm ,
9th International workshop on sea ice modelling, data assimilation and validation,
Bremen, Germany,
17 June 2019 - 19 June 2019
.
hdl:10013/epic.9723efd7-d850-4c06-bd4f-2549726b1775
|
|
Conference
-Poster
Sumata, H. ![]() ![]() ![]() A covariant feature of optimal parameters for Arctic sea ice model ,
REKLIM workshop 2018,
Boppard, Germanay,
15 May 2018 - 17 May 2018
.
hdl:10013/epic.4743e810-5ca5-49ee-8e23-525a62ca673b
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() A simultaneous optimization of Arctic sea ice model parameters by genetic algorithm ,
5th International symposium on Arctic research,
Tokyo, Japan,
16 January 2018 - 18 January 2018
.
hdl:10013/epic.408ad8e3-71c7-4af8-aae3-74d432e65900
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() A simultaneous optimization of Arctic sea ice model parameters by genetic algorithm ,
8th international workshop on sea ice modelling, data assimilation and verification,
Bergen, Norway,
1 November 2017 - 3 November 2017
.
hdl:10013/epic.82193d16-7ffb-46d2-aa20-8a0c1ae256ab
|
|
Conference
-Poster
Sumata, H. ![]() ![]() ![]() Decorrelation scale for Arctic Ocean Hydrography. Part I: Amerasian Basin ,
REKLIM Workshop,
Fleesensee,
27 March 2017 - 29 March 2017
.
hdl:10013/epic.4100e2f0-875a-44d2-ae5c-60c7569e31a8
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() ![]() ![]() ![]() ![]() Decorrelation scales for Arctic Ocean Hydrography: Part I. Amerasian Basin ,
ASOF workshop,
Sopot, Poland,
20 March 2017 - 22 March 2017
.
hdl:10013/epic.e87208e7-1333-44a2-bc15-a93547b71f35
|
|
Conference
-Invited talk
Riemann-Campe, K. ![]() ![]() ![]() IPCC AR5: Projections of Arctic Sea Ice Change ,
Arctic Circle,
Reykjavik, Iceland,
6 October 2016 - 9 October 2016
.
hdl:10013/epic.f14e36ad-32b6-49b7-a297-0d9d2ac8df18
|
|
Conference
-Poster
Sumata, H. ![]() ![]() ![]() A simultaneous optimization of sea ice model parameters by genetic algorithm ,
REKLIM workshop,
Merseburg, Germany,
27 April 2016 - 29 April 2016
.
hdl:10013/epic.49098
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() Empirical error functions for monthly-mean Arctic sea-ice drift ,
7th IICWG International Workshop on Sea Ice Data Assimilation and Verification,
Frascati, Italy,
5 April 2016 - 7 April 2016
.
hdl:10013/epic.49095
|
|
Conference
-Poster
Rabe, B. ![]() ![]() ![]() ![]() ![]() ![]() RACE TP 2.1: Arctic Circulation as part of the North Atlantic current system ,
RACE Abschlussseminar,
Bremen, DE
.
hdl:10013/epic.49385
|
|
Conference
-Invited talk
Riemann-Campe, K. ![]() ![]() ![]() IPCC AR5: Projections of Arctic Change ,
Our Common Future Under Climate Change,
Paris, France,
7 July 2015 - 10 July 2015
.
hdl:10013/epic.8c8a2d26-8c26-41cd-95d8-c1079ce74fa7
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() Uncertainty assessment of Arctic summer ice drift for data assimilation ,
REKLIM workshop,
Neumuenster, Germany,
18 May 2015 - 20 May 2015
.
hdl:10013/epic.46099
|
|
Conference
-Talk
Rabe, B. ![]() ![]() ![]() Upper Arctic Ocean decadal changes: freshwater, stratification and surface velocity ,
ISAR-4 (Arctic Science Summit Week),
Toyama, Japan,
27 January 2015 - 30 January 2015
.
hdl:10013/epic.48838
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() Development of ocean-sea ice model for the Arctic by model-data synthesis ,
REKLIM International Conference,
Berlin,
6 October 2014 - 9 October 2014
.
hdl:10013/epic.45057
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() An intercomparison of Arctic ice drift products to deduce uncertainty estimates ,
6th International Workshop on Sea Ice Modelling and Data Assimilation,
Toulouse,
15 September 2014 - 16 September 2014
.
hdl:10013/epic.45056
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() Application of genetic algorithms to a parameter optimization of a coupled ocean-sea ice model in the Arctic Ocean ,
EGU General Assembly 2013,
Vienna, Austria,
7 April 2013 - 12 April 2013
.
hdl:10013/epic.41892
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() Application of genetic algorithms to a parameter optimization of a sea ice model ,
3rd REKLIM workshop,
Bad Honnef, Germany,
16 April 2013 - 18 April 2013
.
hdl:10013/epic.41894
|
|
Conference
-Poster
Itkin, P. , Karcher, M. ![]() Is weaker sea ice changing the Atlantic Water circulation? ,
FAMOS workshop,
Woods Hole, MA, USA,
21 October 2013 - 24 October 2013
.
hdl:10013/epic.42893
|
|
Conference
-Poster
Itkin, P. , Gerdes, R. , Losch, M. ![]() ![]() Role of the landfast ice in the Arctic ocean circulation ,
EGU General Assembley,
2013 - unspecified
.
hdl:10013/epic.42894
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() Exploring a parameter optimization method for sea ice model ,
3rd REKLIM Conference "Klimawandel in Regionen",
Potsdam, Germany,
3 September 2012 - 4 September 2012
.
hdl:10013/epic.41893
|
|
Conference
-Poster
Sumata, H. ![]() ![]() ![]() Assimilation of ice-ocean system in the Arctic: 2007-2008 ,
REKLIM workshop,
Lueneburg, Germany,
19 March 2012 - 21 March 2012
.
hdl:10013/epic.41895
|
|
Conference
-Poster
Rabe, B. ![]() ![]() An assessment of Arctic Ocean freshwater content changes from the 1990s to the 2006-2008 period and beyond ,
WCRP Open Science Conference Climate Research in Service to Society -- Session C40: The Changing Cryosphere and Its Role in the Climate System,
Denver, USA
.
hdl:10013/epic.38618
|
|
Conference
-Talk
Karcher, M. ![]() ![]() Dispersion of 129Iodine in the Arctic Ocean 1970-2008 - its use in uncovering the Arctic Ocean circulation variability - ,
Symposium on Isotopes in Hydrology, Marine Ecosystems, and Climate Change Studies,
Oceanographic Museum of Monaco
.
hdl:10013/epic.39115
|
|
Conference
-Talk
Sumata, H. ![]() ![]() ![]() Effects of ice-displacement data on the assimilated field of the Arctic Ocean ,
1st REKLIM workshop,
Bremerhaven, Germany,
29 March 2011 - 30 March 2011
.
hdl:10013/epic.1b06b68f-6edb-4fd4-864b-26a8e554f880
|
|
Conference
-Invited talk
Karcher, M. ![]() Should we modify our understanding of surface and mid-depth circulation of the Arctic Ocean? ,
European Geosciences Union, General Assembly 2011, Vienna, Austria 08 April 2011.
.
hdl:10013/epic.37334
|
|
Conference
-Invited talk
Karcher, M. ![]() On the connection of Atlantic inflow variability and the overflows via the Arctic Ocean loop ,
Seasonal to Multi-decadal Predictability of Polar Climate, A pan-WCRP workshop initiated by SPARC and CliC,October 25-29, 2010, Bjerknes Centre, Bergen, Norway.
.
hdl:10013/epic.35938
|
|
Conference
-Invited talk
Kauker, F. ![]() ![]() Seasonal Predictability of Sea Ice Minimum Extent - Lessons from the Sea Ice Outlook 2008/9 ,
Sea Ice Outlook Meeting, Miami, Fl, USAMarch 2010 (via telephone).
.
hdl:10013/epic.34844
|
|
Conference
-Talk
Rabe, B. ![]() ![]() ![]() An assessment of pan-Arctic Ocean freshwater content changes from the 1990s to the IPY period ,
Eos Trans. AGU, 91(26), Ocean Sci. Meet. Suppl., Abstract PO51A-05.
.
hdl:10013/epic.36743
|
|
Conference
-Invited talk
Kauker, F. ![]() ![]() AWI/OASys contribution to the S4D sea-ice outlook 2008 ,
Worshop on "Barents Sea seasonal forecasting", organized by the Shtokman Developement AG, Norwegian Meteorological Institute, Oslo, NorwayApril 2009.
.
hdl:10013/epic.32766
|
|
Conference
-Invited talk
Kauker, F. ![]() ![]() Adjoint data assimilation technique and optimal network design ,
Arctic Observing Network (AON) Design and Implementation (ADI) Workshop, Boulder, Colorado, USA, December 2nd to 4th 2009.
.
hdl:10013/epic.34056
|
|
Conference
-Invited talk
Kauker, F. ![]() ![]() Alfred Wegener Institute / OASys's SIO Contribution 2008: Setup / Initialization of the Ensemble Approach, Analysis of the Results, Plans for 2009 ,
March 2009 Sea Ice Outlook Workshop, National Snow and Ice Data Center (NSIDC), Boulder, Colorado, March 10th to 11th
.
hdl:10013/epic.34051
|
|
Conference
-Invited talk
Karcher, M. ![]() ![]() Linking modelling data with Societal Impacts: a Case study on fishery landings and SST ,
International Symposium 'The Arctic Climate System, its Present Status, Future Evolution and Potential Impacts', Brussels, November 10-12
.
hdl:10013/epic.34052
|
|
Conference
-Invited talk
Karcher, M. ![]() ![]() Modelling of marine tracers in the Arctic Ocean ,
AWI-IUP seminar on "Tracers in the Climate System", Bremerhaven. July 2009.
.
hdl:10013/epic.34057
|
|
Conference
-Invited talk
Kauker, F. ![]() ![]() Seasonal Predictability of Sea Ice Minimum Extent - Lessons from the Sea Ice Outlook 2008/9 ,
DAMOCLES symposium: The Arctic Climate system; its present status, future evolution and potential impacts, Brussels, Belgium, November 10th to 12th
.
hdl:10013/epic.34053
|
|
Conference
-Talk
Kauker, F. ![]() ![]() Adjoint analysis of the summer 2007 low in Arctic sea ice area ,
EGU General Assembly, Vienna, Austria, EGU2008-A-09303.
.
hdl:10013/epic.31968
|
|
Conference
-Talk
Karcher, M. ![]() ![]() Arctic Ocean warming and its overflow reduction potential ,
EGU General Assembly, Vienna, Austria, EGU2008-A-09919.
.
hdl:10013/epic.31969
|
|
Conference
-Invited talk
Gerdes, R. , Köberle, C. , Hacker, F. , Karcher, M. ![]() ![]() Comparison of Arctic sea ice variability in IPCC climate experiments and in ocean-sea ice models ,
EGU General Assembly, EGU2008-A-02862; OS8-1FR4O-004;.
.
hdl:10013/epic.30462
|
|
Conference
-Invited talk
Karcher, M. ![]() ![]() NAOSIM NSEs (Northern Sea Exchanges) ,
Nordic Seas Exchange workshop, NERSC, Bergen, Norway.
.
hdl:10013/epic.34058
|
|
Conference
-Invited talk
Kauker, F. ![]() ![]() Variational assimilation and adjoint sensitivities of the North Atlantic/Arctic Ocean Sea Ice Model (NAOSIM) ,
DAMOCLES WP5 workshop, February 11th to 12th, Hotel Orkin, Reykjavik, Iceland.
.
hdl:10013/epic.30073
|
|
Conference
-Invited talk
Karcher, M. ![]() Advection versus local transformation processes in the Arctic Ocean ,
Arctic Workshop of DAMOCLES WP5, OsloNovember 2007.
.
hdl:10013/epic.28569
|
|
Conference
-Invited talk
Karcher, M. ![]() ![]() The Arctic ocean in the 20th century - first results from an AOMIP experiment driven with 100 years of reconstructed forcing fields (keynote) ,
Joint AOMIP/(C)ARCMIP/SEARCH for DAMCOLES (S4D) workshop, October 29th to 31th, 2007. University Pierre et Marie Curie and the Muséum Nationale d'Histoire Naturelle, Paris, France.
.
hdl:10013/epic.28521
|
|
Conference
-Talk
Dorn, W. ![]() ![]() ![]() ![]() Gekoppelte Simulationen des arktischen Klimasystems: Sensitive und unsichere Prozessbeschreibungen ,
DACH Meteorologen-Tagung, 10.-14. September 2007, Hamburg, Germany.
.
hdl:10013/epic.27729
|
|
Conference
-Talk
Dorn, W. ![]() ![]() ![]() ![]() ![]() ![]() Sensitivitätsstudien mit einem gekoppelten regionalen Klimamodell der Arktis zur Identifizierung der grundlegenden Prozesse für eine realistische Simulation des arktischen Meereises ,
Begutachtungsworkshop des BremHLR, 11. Dezember 2007, Bremen, Germany.
.
hdl:10013/epic.28732
|
|
Conference
-Talk
Dorn, W. ![]() ![]() ![]() ![]() ![]() Uncertain descriptions of Arctic climate processes in coupled models and their impact on the simulation of Arctic sea ice ,
SEARCH for DAMOCLES workshop, 29-31 October 2007, Paris, France.
.
hdl:10013/epic.28730
|
|
Conference
-Invited talk
Karcher, M. ![]() ![]() Atlantic Water in the Arctic Ocean: Circulation, Variability, Signal Propagation - Results from Modeling and Observations in the Context of AOMIP ,
Ocean Science Meeting, AGU, 20.-24. February 2006, Honululu, Hawaii, U.S.A.
.
hdl:10013/epic.24072
|
|
Conference
-Invited talk
Karcher, M. ![]() Dispersion Modelling of radionuclides in the Arctic - from hindcasts to emergency preparedness ,
Invited Lecture, AMAP Expert Group meeting for Radioactivity, Swedish Radiation Protection Authority, 24-26 May, Stockholm, Sweden.
.
hdl:10013/epic.23166
|
|
Conference
-Talk
Dorn, W. ![]() ![]() ![]() ![]() ![]() Requirements for a coupled regional atmosphere-ocean-ice model to reproduce the Arctic sea-ice anomaly during summer 1998 realistically ,
EGU General Assembly, 24.-29. April 2005, Vienna, Austria.
.
hdl:10013/epic.23059
|
|
Conference
-Talk
Dorn, W. ![]() ![]() ![]() ![]() ![]() Sea-ice simulations with AWI's coupled regional A-O-I model HIRHAM-NAOSIM ,
Arctic Climate Workshop, 5-7 September 2005, Potsdam, Germany.
.
hdl:10013/epic.24179
|
|
Conference
-Conference paper
Iosjpe, M. , Karcher, M. ![]() Significance of transit and residence time parameters for improvement on radioecological assessment of marine environment ,
2nd Intern. Conference on Radioactivity in the Environment & 6th Intern. conference on environmental radioactivity in the Arctic and the Antarctic,Nice, France, 2-6 October 2005, Extended Abstract.
.
hdl:10013/epic.23360
|
|
Conference
-Conference paper
Gerland, S. , Karcher, M. ![]() Spectral and geostatistical analysis of measured and modelled Technetium-99 timeseries data in the Nordic marine environment ,
2nd Intern. Conference on Radioactivity in the Environment & 6th Intern. conference on environmental radioactivity in the Arctic and the Antarctic,Nice, France, 2-6 October 2005, Extended Abstract.
.
hdl:10013/epic.23380
|
|
Conference
-Invited talk
Karcher, M. ![]() Tc-99 Ausbreitung im europäischen Nordmeer und dem arktischen Ozean - Ergebnisse des RADNOR Projektes ,
Workshop am Bundesamt fuer Seeschifffahrt und Hydrographie im Rahmen des Projektes Kartierung von Tc-99, I-129 und I-127 im Oberflächewasser der Nordsee, Hamburg.11.2005.
.
hdl:10013/epic.24239
|
|
Conference
-Invited talk
Beszczynska-Möller, A. , Fahrbach, E. , Gerdes, R. , Karcher, M. ![]() ![]() Warm Anomalies and Heat Flux Variability in Fram Strait in 1997-2004: A Comparison between Observations and Model Results ,
European Geophysical Union, General Assembly, Vienna, AustriaApril 2005.
.
hdl:10013/epic.23362
|
|
Conference
-Conference paper
Karcher, M. ![]() Arctic Ocean Shelf-Basin Interaction ,
in: Gerland and Njastad (eds.), Arctic Climate Feedback Mechanisms - Proceedings of Arctic Climate Impact Assessment (ACIA) workshop, 17-19 November, Tromsø, Rapport of the Norwegian Polar Institutt No. 124, Tromsø, Norway
.
hdl:10013/epic.20344
|
|
Conference
-Conference paper
Gerland, S. , Perovich, D. K. , Haapala, J. , Harms, I. , Ivanov, B. V. , Pedersen, C. A. , Haas, C. ![]() ![]() 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
|
|
Conference
-Invited talk
Karcher, M. ![]() ![]() Feeding the overflows evolution and propagation of decadal anomalies from observations and modelling ,
European Geosciences Union - 1st General Assembly, 25.-30.April 2004, Nice, France.
.
hdl:10013/epic.20661
|
|
Conference
-Invited talk
Karcher, M. ![]() Arctic Ocean shelf - basin interaction ,
Arctic Climate Impact Assessment (ACIA) workshop on Arctic Climate Feedback Mechanisms, 17 -19 November 2003, Tromsø, Norway.
.
hdl:10013/epic.19869
|
|
Conference
-Talk
Schlitzer, R. ![]() ![]() Circulation and Matter Transport from High Resolution Models ,
3rd SIRRO Workshop, 3.-5. June 2003, Moscow, Russia.
.
hdl:10013/epic.19541
|
|
Conference
-Talk
Hurka, J. , Gerdes, R. , Karcher, M. ![]() ![]() Deep convection in the Greenland and Labrador seas: Analysis of model results ,
EGS-AGU-EUG Joint Assembly, Nice, 8.4.2003, EAE03-A-04121.
.
hdl:10013/epic.30284
|
|
Conference
-Conference paper
Gerdes, R. , Hurka, J. and Karcher, M. ![]() Greenland and Labrador Sea convection in an ocean sea ice simulation 1948-2002 ,
Seventh Conference on Polar Meteorology and Oceanography and Joint Symposium on High-Latitude Climate Variations, extended abstract (CD-ROM) 12-16 May 2003, Hyannis, USA.
.
hdl:10013/epic.18828
|
|
Conference
-Talk
Wehde, H. , Backhaus, J. O. , Gerdes, R. , Karcher, M. ![]() High resolution simulations of oceanic convection within the Greenland Sea ,
EGS-AGU-EUg Joint Assembly, Nice, 8.4.2003, EAE03-A-07312.
.
hdl:10013/epic.30283
|
|
Conference
-Poster
Ivchenko, V. , Gerdes, R. , Haas, C. ![]() ![]() ![]() 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
-Invited talk
Gerdes, R. , Brauch, J. , Hurka, J. , Karcher, M. ![]() ![]() Long term variability of Arctic-Atlantic exchanges ,
EGS-AGU-EUG Joint Assembly, Nice, 11.4.2003, EAE03-A-02966.
.
hdl:10013/epic.30286
|
|
Conference
-Conference paper
Schauer, U. , Rudels, B. , Karcher, M. ![]() Ocean convection in Arctic shelf polynyas ,
Proceedings of ACSYS Final Science Conference "Progress in Understanding the Arctic Climate System", 11-14 November 2003, AARI St. Petersburg, Russia.
.
hdl:10013/epic.20254
|
|
Conference
-Conference paper
Karcher, M. ![]() ![]() Transformation of Atlantic Water in the Barents Sea between 1948 and 2002 ,
Seventh Conference on Polar Meteorology and Oceanography and Joint Symposium on High-Latitude Climate Variations, Extended Abstract (CD-ROM) 12-16 May 2003, Hyannis, U.S.A.
.
hdl:10013/epic.18826
|
|
Conference
-Poster
Kauker, F. ![]() ![]() Variabilitz of Arctic and North Atlantic sea ice: A combined analysis of model results and observations from 1978 to 2001 ,
EGS-AGU-EUG Joint Assembly, Nice, 10.4.2003, EAE
.
hdl:10013/epic.30289
|
|
Conference
-Conference paper
Gerland, S. , Karcher, M. ![]() Distribution of technetium-99 discharges in the North Atlantic and Arctic: measurements and model results ,
Proceedings from the 5th International conference on environmental radioactivity in the Arctic and Antarctic, 16 - 20 June 2002, St Petersburg, Russia
.
hdl:10013/epic.16062
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Conference
-Invited talk
Karcher, M. ![]() Interpretation of Arctic Sea Ice Large-Scale Variability ,
Arctic Ocean Science Board, 21. Meeting, Groningen. April.
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hdl:10013/epic.16944
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Conference
-Invited talk
Karcher, M. ![]() Variability of the northern high latitude ice and ocean - recent activities in the AWI Arctic modelling group ,
German-Russian Modeling Seminar, 19.-22. November, Inst. for Marine Research, University of Hamburg.
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hdl:10013/epic.16951
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Conference
-Conference paper
Karcher, M. ![]() The dispersion of technetium-99 in the Nordic Seas and the Arctic Ocean in the 1990s according to model results and observations ,
Proceedings of the 'International Conference on Radioactivity in the Environment' 1-5 Sept. 2002, Monaco
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hdl:10013/epic.16154
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Conference
-Invited talk
Karcher, M. ![]() ![]() Arctic Warming - evolution and spreading of the 1990s warm event in the Nordic Seas and the Arctic Ocean ,
EGS XXVI General Assembly, Nice, France.-30. March.
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hdl:10013/epic.16941
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Conference
-Invited talk
Karcher, M. ![]() Modeling the Arctic Ocean ,
THE ARCTIC OCEAN - Progress in Arctic Ocean Research over the past decades, Royal Swedish Academy of Sciences, 5.-7. November, Stockholm.
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hdl:10013/epic.16934
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Conference
-Invited talk
Karcher, M. ![]() Recent modelling activities in high northern latitudes at the Alfred Wegener Institute for Polar and Marine Research (Bremerhaven) and the Institute for Marine Research (Hamburg) ,
Seminar at the Marine Environmental Lab., IAEA, Monaco. March.
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hdl:10013/epic.16954
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Conference
-Invited talk
Karcher, M. ![]() Propagation of hydrographic anomalies in the Nordic Seas - high-resolution modeling in the EU project 'VEINS' ,
'Topics on Atmospheres and Oceans Seminar', School of Earth and Ocean Sciences, University of Victoria, Canada. July.
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hdl:10013/epic.16953
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Conference
-Conference paper
Karcher, M. ![]() Long-range transport of 129 I and 137 Cs in the Nordic Seas and the Arctic Ocean ,
IAEA-TECDOC-1094, Viennaff.
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hdl:10013/epic.15098
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Conference
-Conference paper
Brauch, J. , Gerdes, R. , Karcher, M. ![]() ![]() Response experiments with NAO related forcing ,
ICES Council Meeting,L/28
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hdl:10013/epic.11032
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Conference
-Conference paper
Karcher, M. ![]() ![]() Variability in the Nordic Seas exchange - model results 1979-1993 ,
ICES Council Meeting 1999,L/18
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hdl:10013/epic.12168
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Conference
-Invited talk
Karcher, M. ![]() Exploring Ice and Oceans of the high North - Research with computers and ships ,
Scientific Conference SEA YOUR FUTURE at the European Week for Science and Technological Culture 1998, ECSITE (European Collaborative for Science, Industry and Technology Exhibitions), 29.-31. August, Lisbon, Portugal.
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hdl:10013/epic.17141
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Conference
-Conference paper
Karcher, M. ![]() Modeling the ventilation of the upper and intermediate water of the Arctic Ocean with an isopycnic model ,
WCRP Report 106, WMO/TD No. 908
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hdl:10013/epic.15099
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Conference
-Conference paper
Karcher, M. ![]() Transit times and pathways of contaminants in the Arctic Ocean ,
AMAP Int.Symp.on Environmental Pollution of the Arctic and Third Int.Conf.on Environmental Radioactivity in the Arctic, Extended Abstracts, 46-50, Tromsoe, Norway.
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hdl:10013/epic.15100
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Miscellaneous
Schlosser, P. , Pfirman, S. , Pomerance, R. , Williams, M. , Ack, B. , Duffy, P. , Eicken, H. , Latif, M. , Murray, M. , Wallace, D. , Anderson, L. G. , Baker, B. , Bhomik, A. , Bronen, R. , Ekwurzel, B. , Francis, J. , Gerlach, C. , Horton, R. , Karcher, M. ![]() A 5 ̊C Arctic in a 2 ̊C World ,
[Miscellaneous]
hdl:10013/epic.49026
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Miscellaneous
Murray, M. , Eicken, H. , Starkweather, S. , Gerlach, S. , Evengard, B. , Gearhard, S. , Schlosser, P. , Karcher, M. ![]() Responding to Arctic Environmental Change - Translating our Grwoing Understanding into a Research Agenda for Action ,
[Miscellaneous]
hdl:10013/epic.39936
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