Items where Author is "Karcher, Michael"

Article

Smith, J. N. , Karcher, M. , Casacuberta, N. , Williams, W. J. , Kenna, T. and Smethie, W. M. (2021)
A Changing Arctic Ocean: How Measured and Modeled 129 I Distributions Indicate Fundamental Shifts in Circulation Between 1994 and 2015 ,

Journal of Geophysical Research: Oceans, 126 (3) .

doi:https://www.doi.org/10.1029/2020jc016740 , hdl:10013/epic.d5e0f710-09b5-4b85-978d-0b2bca8bafe3

Article

Stroeve, J. , Vancoppenolle, M. , Veyssiere, G. , Lebrun, M. , Castellani, G. , Babin, M. , Karcher, M. , Landy, J. , Liston, G. E. and Wilkinson, J. (2021)
A Multi-Sensor and Modeling Approach for Mapping Light Under Sea Ice During the Ice-Growth Season ,

Frontiers in Marine Science, 7 , 592337- .

doi:https://www.doi.org/10.3389/fmars.2020.592337 , hdl:10013/epic.75dc2e40-2dc2-4188-973f-001dc46f6502

Article

Castellani, G.

, Veyssiere, G. , Kauker, F.

, Karcher, M.

, Stroeve, J. , Wilkinson, J. , Flores, H.

and Nicolaus, M.

(2020)
Freezing in the Sun ,

Frontiers Young Minds .

doi:10.3389/frym.2020.509101 , hdl:10013/epic.daf40dea-a175-402b-9b0c-b8ad635d8926

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Article

Krumpen, T. , Birrien, F. , Kauker, F. , Rackow, T. , von Albedyll, L. , Angelopoulos, M. , Belter, H. J. , Bessonov, V. , Damm, E. , Dethloff, K. , Haapala, J. , Haas, C. , Harris, C. , Hendricks, S. , Hoelemann, J. , Hoppmann, M. , Kaleschke, L. , Karcher, M. , Kolabutin, N. , Lei, R. , Lenz, J. , Morgenstern, A. , Nicolaus, M. , Nixdorf, U. , Petrovsky, T. , Rabe, B. , Rabenstein, L. , Rex, M. , Ricker, R. , Rohde, J. , Shimanchuk, E. , Singha, S. , Smolyanitsky, V. , Sokolov, V. , Stanton, T. , Timofeeva, A. , Tsamados, M. and Watkins, D. (2020)
The MOSAiC ice floe: sediment-laden survivor from the Siberian shelf ,

The Cryosphere, 14 (7), pp. 2173-2187 .

doi:https://www.doi.org/10.5194/tc-14-2173-2020 , hdl:10013/epic.88ca6b77-5f5d-41e0-849a-c029ff5e3b8d

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Article

Sumata, H. , Kauker, F. , Karcher, M. and Gerdes, R. (2019)
Covariance of Optimal Parameters of an Arctic Sea Ice–Ocean Model ,

Monthly Weather Review, 147 (7), pp. 2579-2602 .

doi:https://www.doi.org/10.1175/mwr-d-18-0375.1 , hdl:10013/epic.9ca378b1-a76d-40d2-9acd-96226199da98

Article

Sumata, H.

, Kauker, F. , Karcher, M. and Gerdes, R. (2019)
Simultaneous Parameter Optimization of an Arctic Sea Ice–Ocean Model by a Genetic Algorithm ,

Monthly Weather Review, 147 (6), pp. 1899-1926 .

doi:https://www.doi.org/10.1175/mwr-d-18-0360.1 , hdl:10013/epic.0ca56b92-99be-426c-80a7-c29923f9b724

Article

Kaminski, T. , Kauker, F. , Toudal Pedersen, L. , Voßbeck, M. , Haak, H. , Niederdrenk, L. , Hendricks, S. , Ricker, R. , Karcher, M. , Eicken, H. and Gråbak, O. (2018)
Arctic Mission Benefit Analysis: impact of sea ice thickness, freeboard, and snow depth products on sea ice forecast performance ,

The Cryosphere, 12 (8), pp. 2569-2594 .

doi:https://www.doi.org/10.5194/tc-12-2569-2018 , hdl:10013/epic.2f818958-5f74-456e-8db8-a4ab8dd2b914

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Article

Sumata, H. , Kauker, F. , Karcher, M. , Rabe, B. , Timmermans, M. L. , Behrendt, A. , Gerdes, R. , Schauer, U. , Shimada, K. , Cho, K. H. and Kikuchi, T. (2018)
Decorrelation scales for Arctic Ocean hydrography – Part I: Amerasian Basin ,

Ocean Science, 14 (1), pp. 161-185 .

doi:https://www.doi.org/10.5194/os-14-161-2018 , hdl:10013/epic.90544b65-f2ba-4c57-8c3f-9c7658850da6

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Article

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. (2018)
Radium Isotopes Across the Arctic Ocean Show Time Scales of Water Mass Ventilation and Increasing Shelf Inputs ,

Journal of Geophysical Research: Oceans .

doi:10.1029/2018JC013888 , hdl:10013/epic.827667c0-4abe-4712-b497-ec8e4d265ca9

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Article

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. (2018)
Radium Isotopes Across the Arctic Ocean Show Time Scales of Water Mass Ventilation and Increasing Shelf Inputs ,

Journal of Geophysical Research: Oceans, 123 (7), pp. 4853-4873 .

doi:https://www.doi.org/10.1029/2018jc013888 , hdl:10013/epic.78d69371-5ddc-4a6c-b67f-125e829c386d

Article

Ulfsbo, A. , Jones, E. M. , Casacuberta, N. , Korhonen, M. , Rabe, B. , Karcher, M. and van Heuven, S. M. (2018)
Rapid Changes in Anthropogenic Carbon Storage and Ocean Acidification in the Intermediate Layers of the Eurasian Arctic Ocean: 1996-2015 ,

Global Biogeochemical Cycles, 32 (9), pp. 1254-1275 .

doi:https://www.doi.org/10.1029/2017gb005738 , hdl:10013/epic.b8431370-96a8-4e87-bde7-0b927f294b26

Article

Crépin, A. S. , Karcher, M. and Gascard, J. C. (2017)
Arctic Climate Change, Economy and Society (ACCESS): Integrated perspectives ,

Ambio, 46 (S3), pp. 341-354 .

doi:https://www.doi.org/10.1007/s13280-017-0953-3 , hdl:10013/epic.51856

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Article

Gascard, J. C. , Riemann-Campe, K. , Gerdes, R. , Schyberg, H. , Randriamampianina, R. , Karcher, M. , Zhang, J. and Rafizadeh, M. (2017)
Future sea ice conditions and weather forecasts in the Arctic: Implications for Arctic shipping ,

Ambio, 46 (S3), pp. 355-367 .

doi:https://www.doi.org/10.1007/s13280-017-0951-5 , hdl:10013/epic.51881

Article

Aksenov, Y. , Karcher, M. , Proshutinsky, A. , Gerdes, R. , de Cuevas, B. , Golubeva, E. , Kauker, F. , Nguyen, A. T. , Platov, G. A. , Wadley, M. , Watanabe, E. , Coward, A. C. and Nurser, A. G. (2016)
Arctic pathways of P acific W ater: Arctic O cean M odel I ntercomparison experiments ,

Journal of Geophysical Research: Oceans, 121 (1), pp. 27-59 .

doi:https://www.doi.org/10.1002/2015jc011299 , hdl:10013/epic.49027

Article

Janout, M. A. , Aksenov, Y. , Hölemann, J. A. , Rabe, B. , Schauer, U. , Polyakov, I. V. , Bacon, S. , Coward, A. C. , Karcher, M. , Lenn, Y. D. , Kassens, H. and Timokhov, L. (2015)
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, 120 (7), pp. 4925-4944 .

doi:https://www.doi.org/10.1002/2014jc010635 , hdl:10013/epic.45915

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Article

Haine, T. W. , Curry, B. , Gerdes, R. , Hansen, E. , Karcher, M.

, Lee, C. , Rudels, B. , Spreen, G. , de Steur, L. , Stewart, K. D. and Woodgate, R. (2015)
Arctic freshwater export: Status, mechanisms, and prospects ,

Global and Planetary Change, 125 , pp. 13-35 .

doi:10.1016/j.gloplacha.2014.11.013 , hdl:10013/epic.49086

Article

Sumata, H.

, Gerdes, R. , Kauker, F. and Karcher, M. (2015)
Empirical error functions for monthly mean Arctic sea‐ice drift ,

Journal of Geophysical Research: Oceans, 120 (11), pp. 7450-7475 .

doi:https://www.doi.org/10.1002/2015jc011151 , hdl:10013/epic.49088

Article

Kaminski, T. , Kauker, F.

, Eicken, H. and Karcher, M.

(2015)
Exploring the utility of quantitative network design in evaluating Arctic sea ice thickness sampling strategies ,

The Cryosphere, 9 (4), pp. 1721-1733 .

doi:10.5194/tc-9-1721-2015 , hdl:10013/epic.47395

Article

Kauker, F.

, Kaminski, T. , Ricker, R.

, Toudal-Pedersen, L. , Dybkjaer, G. , Melsheimer, C. , Eastwood, S. , Sumata, H.

, Karcher, M.

and Gerdes, R. (2015)
Seasonal sea ice predictions for the Arctic based on assimilation of remotely sensed observations ,

The Cryosphere Discussions, 9 (5), pp. 5521-5554 .

doi:10.5194/tcd-9-5521-2015 , hdl:10013/epic.49087

Article

Sumata, H.

, Kwok, R. , Gerdes, R. , Kauker, F. and Karcher, M. (2015)
Uncertainty of Arctic summer ice drift assessed by high-resolution SAR data ,

Journal of Geophysical Research: Oceans, 120 (8), pp. 5285-5301 .

doi:https://www.doi.org/10.1002/2015jc010810 , hdl:10013/epic.49089

Article

Sumata, H.

, Lavergne, T. , Girard-Ardhuin, F. , Kimura, N. , Tschudi, M. A. , Kauker, F.

, Karcher, M.

and Gerdes, R. (2014)
An intercomparison of Arctic ice drift products to deduce uncertainty estimates ,

Journal of Geophysical Research: Oceans, 119 (8), pp. 4887-4921 .

doi:10.1002/2013JC009724 , hdl:10013/epic.45049

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Article

Itkin, P. , Karcher, M. and Gerdes, R. (2014)
Is weaker Arctic sea ice changing the Atlantic water circulation? ,

Journal of Geophysical Research: Oceans, 119 (9), pp. 5992-6009 .

doi:https://www.doi.org/10.1002/2013jc009633 , hdl:10013/epic.49090

Article

Karcher, M. , Smith, J. N. , Kauker, F. , Gerdes, R. and Smethie, W. M. (2012)
Recent changes in Arctic Ocean circulation revealed by iodine-129 observations and modeling ,

Journal of Geophysical Research: Oceans, 117 (C8), n/a-n/a .

doi:https://www.doi.org/10.1029/2011jc007513 , hdl:10013/epic.39852

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Article

Beszczynska-Möller, A. , Woodgate, R. , Lee, C. , Melling, H. and Karcher, M. (2011)
A Synthesis of Exchanges Through the Main Oceanic Gateways to the Arctic Ocean ,

Oceanography, 24 (3), pp. 82-99 .

doi:https://www.doi.org/10.5670/oceanog.2011.59 , hdl:10013/epic.38140

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Article

Rabe, B. , Karcher, M. , Schauer, U. , Toole, J. M. , Krishfield, R. A. , Pisarev, S. , Kauker, F. , Gerdes, R. and Kikuchi, T. (2011)
An assessment of Arctic Ocean freshwater content changes from the 1990s to the 2006–2008 period ,

Deep Sea Research Part I: Oceanographic Research Papers, 58 (2), pp. 173-185 .

doi:https://www.doi.org/10.1016/j.dsr.2010.12.002 , hdl:10013/epic.36728

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Article

Karcher, M. , Harms, I. , Standring, W. J. , Dowdall, M. and Strand, P. (2010)
On the potential for climate change impacts on marine anthropogenic radioactivity in the Arctic regions ,

Marine Pollution Bulletin, 60 (8), pp. 1151-1159 .

doi:https://www.doi.org/10.1016/j.marpolbul.2010.05.003 , hdl:10013/epic.35346

Article

Rabe, B.

, Schauer, U. , Mackensen, A.

, Karcher, M.

, Hansen, E. and Beszczynska-Möller, A. (2009)
Freshwater components and transports in the Fram Strait: - recent observations and changes since the late 1990s ,

Ocean Sci., 5 , pp. 219-233 .

hdl:10013/epic.32890

Article

Kauker, F.

, Gerdes, R. , Karcher, M.

, Kaminski, T. , Giering, R. and Vossbeck, M. (2009)
Retrospective Summary Comments SIO 2009 AWI/FastOpt/OASys ,

Sea Ice Outlook: monthly reports June, July, August, Retrospective Summary. .

hdl:10013/epic.36313

Article

Kauker, F.

, Gerdes, R. and Karcher, M.

(2008)
Arctic Sea Ice in summer 2008 - an outlook ,

Sea Ice Outlook: monthly reports .

hdl:10013/epic.30865

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Article

Kauker, F. , Köberle, C. , Gerdes, R. and Karcher, M. (2008)
Modeling the 20th century Arctic Ocean/Sea ice system: Reconstruction of surface forcing ,

Journal of Geophysical Research, 113 (C9) .

doi:https://www.doi.org/10.1029/2006jc004023 , hdl:10013/epic.31554

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Article

Dickson, R. , Rudels, B. , Dye, S. , Karcher, M. , Meincke, J. and Yashayaev, I. (2007)
Current estimates of freshwater flux through Arctic and subarctic seas ,

Progress in Oceanography, 73 (3-4), pp. 210-230 .

doi:https://www.doi.org/10.1016/j.pocean.2006.12.003 , hdl:10013/epic.26912

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Article

Karcher, M.

, Gerdes, R. and Kauker, F.

(2006)
Modeling of δ18O and 99Tc dispersion in Arctic and subarctic seas ,

ASOF Newsletter,Issue No 5, April 2006 .

hdl:10013/epic.24814

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Article

Richter-Menge, J. , Overland, J. , Proshutinsky, A. , Romanowsky, V. , Gascard, J. C. , Karcher, M.

, Maslanik, J. , Perovich, D. , Shiklomanov, A. and Waller, D. (2006)
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. .

hdl:10013/epic.25464

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Article

Dorn, W.

, Dethloff, K. , Rinke, A.

, Frickenhaus, S.

, Gerdes, R. , Karcher, M.

and Kauker, F.

(2006)
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., pp. 41-44 .

hdl:10013/epic.24180

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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Article

Proshutinsky, A. , Yang, J. , Gerdes, R. , Karcher, M.

, Kauker, F.

, Hakkinen, S. , Hibler, W. , Holland, D. , Maqueda, M. , Holloway, G. , Hunke, E. , Maslowski, W. , Steele, M. and Zhang, J. (2005)
Arctic Ocean Study - Synthesis of Model Results and Observations ,

EOS, Transactions, American Geophysical Union, 368 .

hdl:10013/epic.23311

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Article

Dowdall, M. , Gerland, S. , Karcher, M.

, Gwynn, J. P. , Rudjord, A. L. , Kolstadt, K. and Christensen, G. (2005)
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 .

hdl:10013/epic.23719

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Article

Kauker, F. , Gerdes, R. , Karcher, M. and Köberle, C. (2005)
Impact of North Atlantic Current changes on the Nordic Seas and the Arctic Ocean ,

Journal of Geophysical Research, 110 (C12), pp. 1-13 .

doi:https://www.doi.org/10.1029/2004jc002624 , hdl:10013/epic.21400

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Article

Polyakov, I. V. , Beszczynska, A. , Carmack, E. C. , Dmitrenko, I. A. , Fahrbach, E. , Frolov, I. E. , Gerdes, R. , Hansen, E. , Holfort, J. , Ivanov, V. V. , Johnson, M. A. , Karcher, M. , Kauker, F. , Morison, J. , Orvik, K. A. , Schauer, U. , Simmons, H. L. , Skagseth, Ø. , Sokolov, V. T. , Steele, M. , Timokhov, L. A. , Walsh, D. and Walsh, J. E. (2005)
One more step toward a warmer Arctic ,

Geophysical Research Letters, 32 (17), pp. 1-4 .

doi:https://www.doi.org/10.1029/2005gl023740 , hdl:10013/epic.23310

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Article

Dowdall, M. , Gerland, S. , Karcher, M. , Gwynn, J. P. , Rudjord, A. L. and Kolstad, A. K. (2005)
Optimisation of sampling for the temporal monitoring of technetium-99 in the Arctic marine environment ,

Journal of Environmental Radioactivity, 84 (1), pp. 111-130 .

doi:https://www.doi.org/10.1016/j.jenvrad.2005.04.010 , hdl:10013/epic.22064

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Article

Uotila, P. , Holland, D. M. , Morales Maqueda, M. A. , Häkkinen, S. , Holloway, G. , Karcher, M. , Kauker, F. , Steele, M. , Yakovlev, N. , Zhang, J. and Proshutinsky, A. (2005)
An energy-diagnostics intercomparison of coupled ice-ocean Arctic models ,

Ocean Modelling, 11 (1-2), pp. 1-27 .

doi:https://www.doi.org/10.1016/j.ocemod.2004.11.003 , hdl:10013/epic.21473

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Article

Steiner, N. , Holloway, G. , Gerdes, R. , Haekkinen, S. , Holland, D. , Karcher, M.

, Kauker, F.

, Maslowski, W. , Proshutinsky, A. , Steele, M. and Zhang, J. (2004)
Comparing modeled streamfunction, heat and freshwater content in the Arctic Ocean ,

Ocean modelling, 6 , pp. 265-284 .

doi:10.1016/S1463-5003(03)00013-1 , hdl:10013/epic.16240

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Article

Karcher, M.

, Harms, I. H. and Kauker, F.

(2004)
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, pp. 75-76 .

hdl:10013/epic.22008

Article

Karcher, M.

, Gerdes, R. , Kauker, F.

and Köberle, C. (2003)
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) .

doi:10.1029/2001JC001265 , hdl:10013/epic.15375

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Article

Karcher, M.

, Kulakov, M. , Pivovarov, S. , Schauer, U. , Kauker, F.

and Schlitzer, R.

(2003)
Atlantic Water flow to the Kara Sea - comparing model results with observations ,

in: 'Siberian River Runoff in the Kara Sea: Characterisation, Quantification, Variability and Environmental Significance', Stein, Fahl, Fütterer, Galimov (Eds.), Elsevier, Proceedings in Marine Science, pp. 47-69 .

hdl:10013/epic.15659

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Article

Gerdes, R. , Karcher, M.

, Kauker, F.

and Schauer, U. (2003)
Causes and development of repeated Arctic Ocean warming events ,

Geophysical research letters, 30 (19) .

doi:10.1029/2003GL018080 , hdl:10013/epic.19596

Article

Uotila, P. , Holland, D. M. , Haekkinen, S. , Holloway, G. , Steiner, N. , Karcher, M.

, Kauker, F.

, Steele, M. , Zhang, J. , Yakovlev, N. and Proshutinsky, A. (2003)
An Energy Diagnostics Intercomparison of Coupled Ice-Ocean Arctic Models ,

Proceedings of ACSYS Final Science Conference "Progress in Understanding the Arctic Climate System", 11-14 November 2003, AARI St. Petersburg, Russia .

hdl:10013/epic.20264

Article

Kauker, F.

, Gerdes, R. , Karcher, M.

, Köberle, C. and Lieser, J. L. (2003)
Variability of Arctic and North Atlantic sea ice: A combined analysis of model results and observations from 1978 to 2001 ,

Journal of Geophysical ResearchC6), 108 .

doi:10.1029/2002JC001573 , hdl:10013/epic.16221

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Article

Karcher, M.

, Gerdes, R. , Kauker, F.

and Köberle, C. (2002)
Modelling decadal variability of Arctic sea ice ,

Newsletter from the AOSB - Arctic Ocean Sciences Board, July 2002ff., 11 .

hdl:10013/epic.16153

Article

Karcher, M.

and Oberhuber, J. M. O. (2002)
Pathways and modification of the upper and intermediate waters of the Arctic Ocean, ,

Journal of Geophysical ResearchC6), 107 .

doi:10.1029/2000JC000530 , hdl:10013/epic.15376

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Article

Steele, M. , Ermold, W. , Holloway, G. , Haekkinen, S. , Holland, D. , Karcher, M.

, Kauker, F.

and Maslowski, W. (2001)
Adrift in the Beaufort Gyre: A Model Intercomparison ,

Geophysical Research Letters, Vol. 28, No. 15, pp. 2935-2838 .

hdl:10013/epic.14594

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Article

Brümmer, B. , Müller, G. , Affeld, B. , Gerdes, R. , Karcher, M. and Kauker, F. (2001)
Cyclones over Fram Strait: impact on sea ice and variability ,

Polar Research, 20 (2), pp. 147-152 .

doi:https://www.doi.org/10.1111/j.1751-8369.2001.tb00050.x , hdl:10013/epic.14593

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Article

Proshutinsky, A. , Steele, M. , Zhang, J. , Holloway, G. , Steiner, N. , Hakkinen, S. , Holland, D. , Gerdes, R. , Köberle, C. , Karcher, M.

, Johnson, M. , Maslowski, W. , Walczowski, W. , Hibler, W. and Wang, J. (2001)
Multinational effort studies differences among Arctic Ocean models ,

EOS, Transactions, American Geophysical Union, 82(51), 637 , pp. 643-644 .

hdl:10013/epic.15430

Article

Gerdes, R. , Karcher, M.

, Kauker, F.

and Köberle, C. (2001)
Predicting the spread of radioactive substances from Kursk ,

EOS, Transactions, American Geophysical Union, 82(23), 253 , pp. 256-257 .

hdl:10013/epic.14532

Article

Dethleff, D. , Nies, H. , Harms, I. H. and Karcher, M.

(2000)
Dispersal of particle-bond and dissolved radionuclides through flaw lead produced sea-ice and dense water in the western Kara Sea ,

Journal of Marine Systems , Vol. 24, pp. 233-248 .

hdl:10013/epic.14270

Article

Karcher, M.

and Harms, I. (2000)
Estimation of water and ice fluxes in the Arctic for an improved box structure of the NRPA box model (Transport Programme) ,

Report to the Norwegian Radiation Protection Agency (NRPA) .

hdl:10013/epic.15074

Article

Harms, I. H. , Karcher, M.

and Dethleff, D. (2000)
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

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Article

Dethleff, D. , Nies, H. , Harms, I. H. and Karcher, M.

(2000)
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

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Article

Nies, H. , Harms, I. H. , Karcher, M.

, Dethleff, D. and Bahe, C. (1999)
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

Preview

Article

Harms, I. H. and Karcher, M.

(1999)
Modeling the seasonal variability of hydrography and circulation in the Kara Sea ,

Journal of Geophysical Research , Vol. 104, 13, 431 .

hdl:10013/epic.14268

Preview

Article

Nies, H. , Harms, J. and Karcher, M.

(1998)
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.

, Dethleff, D. , Bahe, C. , Kuhlman, G. , Kleine, E. and Loewe, P. (1998)
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.

(1997)
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

Preview

Article

Nies, H. , Bahe, C. , Dethleff, D. , Harms, I. H. and Karcher, M.

(1997)
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.

and Lippert, A. (1994)
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

Preview

Article

Karcher, M.

and Muehlenweg, S. (1987)
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.

, Bahe, C. , Backhaus, J. , Harms, I. and Dethleff, D. (1999)
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. , Gerdes, R. and Kauker, F. (2008)
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, Springer Netherlands, ISBN: 9781402067730 .

doi:https://www.doi.org/10.1007/978-1-4020-6774-7_6 , hdl:10013/epic.30223

Inbook

Gerdes, R. , Karcher, M. , Köberle, C. and Fieg, K. (2008)
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, Springer Netherlands, ISBN: 9781402067730 .

doi:https://www.doi.org/10.1007/978-1-4020-6774-7_18 , hdl:10013/epic.30224

Inbook

Drange, H. , Gerdes, R. , Gao, Y. , Karcher, M. , Kauker, F. and Bentsen, M. (2005)
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., American Geophysical Union, ISBN: 9780875904238 .

doi:https://www.doi.org/10.1029/158gm14 , hdl:10013/epic.22799

Preview

Inbook

Gerdes, R. , Hurka, J. , Karcher, M. , Kauker, F. and Köberle, C. (2005)
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, American Geophysical Union, ISBN: 9780875904238 .

doi:https://www.doi.org/10.1029/158gm15 , hdl:10013/epic.20343

Inbook

Harms, I. H. and Karcher, M.

(2003)
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.

and Burchard, H. (2003)
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.

(1994)
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.

, Casacuberta, N. , Wefing, A. M. , Laukert, G. , Bauch, D. , Paffrath, R. , Provost, C. , Karcher, M.

, Meyer, H.

, Schaffer, J.

and Rabe, B.

(2019)
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.

, Kauker, F.

, Karcher, M.

and Gerdes, R. (2019)
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.

, Kauker, F.

, Karcher, M.

and Gerdes, R. (2018)
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.

, Kauker, F.

, Karcher, M.

and Gerdes, R. (2018)
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.

, Kauker, F.

, Karcher, M.

and Gerdes, R. (2017)
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.

, Kauker, F.

, Karcher, M.

and Gerdes, R. (2017)
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.

, Behrendt, A.

, Cho, K. H. , Gerdes, R. , Hölemann, J.

, Janout, M.

, Karcher, M.

, Kauker, F.

, Kikuchi, T. , Psarev, S. , Rabe, B.

, Schauer, U. , Shimada, K. , Somavilla Cabrillo, R. and Timmermans, M. L. (2017)
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.

, Gerdes, R. , Karcher, M.

and Kauker, F.

(2016)
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

Preview

Conference -Poster

Sumata, H.

, Kauker, F.

, Gerdes, R. , Karcher, M.

and Köberle, C. (2016)
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.

, Kwok, R. , Gerdes, R. , Kauker, F.

and Karcher, M.

(2016)
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.

, Schauer, U. , Gerdes, R. , Karcher, M.

, Kauker, F.

, von Appen, W. J.

, Horn, M.

and Kovacs, T.

(2016)
RACE TP 2.1: Arctic Circulation as part of the North Atlantic current system ,

RACE Abschlussseminar, Bremen, DE .

hdl:10013/epic.49385

Preview

Conference -Invited talk

Riemann-Campe, K.

, Gerdes, R. , Karcher, M.

and Kauker, F.

(2015)
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 -Paper

Jung, T. , Doblas-Reyes, F. , Goessling, H. , Guemas, V. , Bitz, C. , Buontempo, C. , Caballero, R. , Jakobson, E. , Jungclaus, J. , Karcher, M. , Koenigk, T. , Matei, D. , Overland, J. , Spengler, T. and Yang, S. (2015)
Polar Lower-Latitude Linkages and Their Role in Weather and Climate Prediction ,

Bulletin of the American Meteorological Society

doi:https://www.doi.org/10.1175/bams-d-15-00121.1 , hdl:10013/epic.45631

Preview

Conference -Talk

Sumata, H.

, Kwok, R. , Gerdes, R. , Kauker, F.

and Karcher, M.

(2015)
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.

, Toole, J. , Krishfield, R. , Pisarev, S. , Su, J. , Karcher, M.

, Kauker, F.

, Kikuchi, T. and Schauer, U. (2015)
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.

, Gerdes, R. , Kauker, F.

, Karcher, M.

and Koeberle, C. (2014)
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.

, Lavergne, T. , Girard-Ardhuin, F. , Kimura, N. , Tschudi, M. , Kauker, F.

, Karcher, M.

and Gerdes, R. (2014)
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.

, Kauker, F.

, Gerdes, R. , Köberle, C. and Karcher, M.

(2013)
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.

, Kauker, F.

, Gerdes, R. , Köberle, C. and Karcher, M.

(2013)
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.

and Gerdes, R. (2013)
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

Preview

Conference -Poster

Itkin, P. , Gerdes, R. , Losch, M.

and Karcher, M.

(2013)
Role of the landfast ice in the Arctic ocean circulation ,

EGU General Assembley, 2013 - unspecified .

hdl:10013/epic.42894

Preview

Conference -Talk

Sumata, H.

, Kauker, F.

, Gerdes, R. , Köberle, C. and Karcher, M.

(2012)
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.

, Kauker, F.

, Gerdes, D. , Köberle, C. and Karcher, M.

(2012)
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.

, Karcher, M.

, Schauer, U. , Toole, J. , Krishfield, R. , Pisarev, S. , Kauker, F. , Gerdes, R. and Kikuchi, T. (2011)
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

[thumbnail of wcrp2011_C40_Th116A_Rabe_et_al_finalversion.pdf]

Preview

Conference -Talk

Karcher, M.

, Smith, J. N. , Kauker, F.

and Gerdes, R. (2011)
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.

, Kauker, F.

, Gerdes, R. , Köberle, C. and Karcher, M.

(2011)
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.

(2011)
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.

(2010)
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.

, Gerdes, R. and Karcher, M.

(2010)
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.

, Karcher, M.

, Schauer, U. , Krishfield, R. A. , Toole, J. M. , Pisarev, S. , Gerdes, R. , Kauker, F.

and Kikuchi, T. (2010)
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.

, Gerdes, R. and Karcher, M.

(2009)
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.

, Kaminski, T. , Karcher, M.

, Gerdes, R. , Giering, R. and Vossbeck, M. (2009)
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.

, Gerdes, R. and Karcher, M.

(2009)
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.

, Kauker, F.

, Hovelsrud, G. and West, J. (2009)
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.

, Gerdes, R. , Kauker, F.

and Smith, J. N. (2009)
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.

, Gerdes, R. and Karcher, M.

(2009)
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.

, Kaminski, T. , Karcher, M.

, Giering, R. , Gerdes, R. and Vossbeck, M. (2008)
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.

, Beszczynska, A. , Gerdes, R. , Kauker, F.

and Heyen, S. (2008)
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.

and Kauker, F.

(2008)
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.

, Gerdes, R. , Kauker, F.

and Köberle, C. (2008)
NAOSIM NSEs (Northern Sea Exchanges) ,

Nordic Seas Exchange workshop, NERSC, Bergen, Norway. .

hdl:10013/epic.34058

Conference -Invited talk

Kauker, F.

, Kaminski, T. , Karcher, M.

, Giering, R. , Gerdes, R. and Vossbeck, M. (2008)
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.

(2007)
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.

, Kauker, F.

and Gerdes, R. (2007)
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.

, Dethloff, K. , Gerdes, R. , Rinke, A.

, Karcher, M.

and Kauker, F.

(2007)
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.

, Dethloff, K. , Rinke, A.

, Frickenhaus, S.

, Gerdes, R. , Karcher, M.

, Kauker, F.

and Olbers, D.

(2007)
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.

, Dethloff, K. , Rinke, A.

, Gerdes, R. , Karcher, M.

, Kauker, F.

and Frickenhaus, S.

(2007)
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.

, Gerdes, R. and Kauker, F.

(2006)
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.

(2005)
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.

, Dethloff, K. , Rinke, A.

, Gerdes, R. , Karcher, M.

, Kauker, F.

and Frickenhaus, S.

(2005)
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.

, Dethloff, K. , Rinke, A.

, Frickenhaus, S.

, Gerdes, R. , Karcher, M.

and Kauker, F.

(2005)
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.

, Harms, I. , Steenhuisen, F. , Gwynn, J. and Sickel, M. (2005)
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

Preview

Conference -Conference paper

Gerland, S. , Karcher, M.

, Dowdall, M. , Divine, D. , Iosjpe, M. , Pavlov, V. and Gwynn, J. P. (2005)
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

Preview

Conference -Invited talk

Karcher, M.

(2005)
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.

, Kauker, F.

, Orvik, K. A. , Schauer, U. and Skagseth, O. (2005)
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.

and Harms, I. H. (2004)
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.

, 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

Preview

Conference -Invited talk

Karcher, M.

, Dickson, R. R. , Gerdes, R. , Kauker, F.

and Köberle, C. (2004)
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.

and Harms, I. (2003)
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.

, Harms, I. , Karcher, M.

and Kulakov, M. (2003)
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.

, Kauker, F.

and Köberle, C. (2003)
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.

(2003)
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.

and Kauker, M. (2003)
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.

, Karcher, M.

, Kauker, F.

and Köberle, C. (2003)
Ice transport through Fram Strait: analysis of backward trajectories ,

EGS-AGU-EUG Joint Assembly, Nice, 10.4.2003, EAE03-A-08865. .

hdl:10013/epic.30290

Conference -Invited talk

Gerdes, R. , Brauch, J. , Hurka, J. , Karcher, M.

, Kauker, F.

and Köberle, C. (2003)
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.

, Fer, I. , Harms, I. , Pisarev, S. , Skogseth, R. , Björk, G. , Winsor, P. and Haugan, P. (2003)
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.

, Gerdes, R. , Kauker, F.

, Köberle, C. and Schauer, U. (2003)
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

Preview

Conference -Poster

Kauker, F.

, Gerdes, R. , Karcher, M.

, Köberle, C. and Lieser, J. (2003)
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.

, Iosjpe, M. , Harms, I. and Kolstad, A. K. (2002)
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

Conference -Invited talk

Karcher, M.

(2002)
Interpretation of Arctic Sea Ice Large-Scale Variability ,

Arctic Ocean Science Board, 21. Meeting, Groningen. April. .

hdl:10013/epic.16944

Conference -Invited talk

Karcher, M.

(2002)
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. .

hdl:10013/epic.16951

Conference -Conference paper

Karcher, M.

, Gerland, S. , Harms, I. H. , Iosjpe, M. , Heldal, H. E. and Kershaw, P. J. (2002)
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 .

hdl:10013/epic.16154

Preview

Conference -Invited talk

Karcher, M.

, Gerdes, R. , Kauker, F.

and Köberle, C. (2001)
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. .

hdl:10013/epic.16941

Conference -Invited talk

Karcher, M.

(2001)
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. .

hdl:10013/epic.16934

Conference -Invited talk

Karcher, M.

and Harms, I. (2001)
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. .

hdl:10013/epic.16954

Conference -Invited talk

Karcher, M.

(2000)
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. .

hdl:10013/epic.16953

Conference -Conference paper

Karcher, M.

, Harms, I. H. and Smith, J. N. (1999)
Long-range transport of 129 I and 137 Cs in the Nordic Seas and the Arctic Ocean ,

IAEA-TECDOC-1094, Viennaff. .

hdl:10013/epic.15098

Conference -Conference paper

Brauch, J. , Gerdes, R. , Karcher, M.

, Kauker, F.

and Köberle, C. (1999)
Response experiments with NAO related forcing ,

ICES Council Meeting,L/28 .

hdl:10013/epic.11032

Preview

Conference -Conference paper

Karcher, M.

, Brauch, J. , Fritzsch, B. , Gerdes, R. , Kauker, F.

, Köberle, C. and Prange, M. (1999)
Variability in the Nordic Seas exchange - model results 1979-1993 ,

ICES Council Meeting 1999,L/18 .

hdl:10013/epic.12168

Conference -Invited talk

Karcher, M.

(1998)
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. .

hdl:10013/epic.17141

Conference -Conference paper

Karcher, M.

and Oberhuber, J. M. (1998)
Modeling the ventilation of the upper and intermediate water of the Arctic Ocean with an isopycnic model ,

WCRP Report 106, WMO/TD No. 908 .

hdl:10013/epic.15099

Conference -Conference paper

Karcher, M.

, Harms, I. H. , Dethleff, D. and Nies, H. (1997)
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. .

hdl:10013/epic.15100

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.

, Kelly, B. , Kelly, C. , Kim, S. J. , Levermann, A. , Metcalf, V. , Mueter, F. , Park, A. , Pasztor, J. , Rasch, P. , Romanowsky, V. , Shaw, R. , Stephenson, S. , Tilmes, S. , Titley, D. , Tremblay, B. and Vorosmarty, C. (2016)
A 5 ̊C Arctic in a 2 ̊C World ,

[Miscellaneous]

hdl:10013/epic.49026

[thumbnail of 5C_Arctic_final_pages.pdf]

Preview

Miscellaneous

Murray, M. , Eicken, H. , Starkweather, S. , Gerlach, S. , Evengard, B. , Gearhard, S. , Schlosser, P. , Karcher, M.

, McLennan, D. , Epstein, H. , Bock, N. , Julliet, C. , Graben, S. , Grimwood, B. , Labonte, D. , Pletnikoff, K. , Scott, N. , Sommerkorn, M. , Vardy, M. , Vitale, V. , Wagner, I. and Wandel, J. (2012)
Responding to Arctic Environmental Change - Translating our Grwoing Understanding into a Research Agenda for Action ,

[Miscellaneous]

hdl:10013/epic.39936

[thumbnail of RtoCWorkshopReport20April2011.pdf]

Preview