Items where Author is "Willmes, Sascha"

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Number of items: 34.

Article

Article
Krumpen, T. ORCID: https://orcid.org/0000-0001-6234-8756, von Albedyll, L. ORCID: https://orcid.org/0000-0002-6768-0368, Goessling, H. F. ORCID: https://orcid.org/0000-0001-9018-1383, Hendricks, S. ORCID: https://orcid.org/0000-0002-1412-3146, Juhls, B. ORCID: https://orcid.org/0000-0002-5844-6318, Spreen, G. , Willmes, S. , Belter, H. J. ORCID: https://orcid.org/0000-0001-9383-911X, Dethloff, K. ORCID: https://orcid.org/0000-0003-4162-148X, Haas, C. ORCID: https://orcid.org/0000-0002-7674-3500, Kaleschke, L. , Katlein, C. ORCID: https://orcid.org/0000-0003-2422-0414, Tian-Kunze, X. ORCID: https://orcid.org/0000-0001-8270-1924, Ricker, R. ORCID: https://orcid.org/0000-0001-6928-7757, Rostosky, P. , Rückert, J. , Singha, S. and Sokolova, J. (2021)
MOSAiC drift expedition from October 2019 to July 2020: sea ice conditions from space and comparison with previous years ,
The Cryosphere, 15 (8), pp. 3897-3920 .
doi:10.5194/tc-15-3897-2021 , hdl:10013/epic.0febefb2-546b-47e4-896b-7d9675182692
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Article
Hellmer, H. H. , Rhein, M. , Heinemann, G. , Abalichin, J. , Abouchami, W. , Baars, O. , Cubasch, U. , Dethloff, K. , Ebner, L. , Fahrbach, E. , Frank, M. , Gollan, G. , Greatbatch, R. J. , Grieger, J. , Gryanik, V. M. , Gryschka, M. , Hauck, J. , Hoppema, M. , Huhn, O. , Kanzow, T. , Koch, B. P. , König-Langlo, G. , Langematz, U. , Leckebusch, G. C. , Lüpkes, C. , Paul, S. , Rinke, A. , Rost, B. , van der Loeff, M. R. , Schröder, M. , Seckmeyer, G. , Stichel, T. , Strass, V. , Timmermann, R. , Trimborn, S. , Ulbrich, U. , Venchiarutti, C. , Wacker, U. , Willmes, S. and Wolf-Gladrow, D. (2016)
Meteorology and oceanography of the Atlantic sector of the Southern Ocean—a review of German achievements from the last decade ,
Ocean Dynamics, 66 (11), pp. 1379-1413 .
doi:https://www.doi.org/10.1007/s10236-016-0988-1 , hdl:10013/epic.48599
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Article
Arndt, S. , Willmes, S. , Dierking, W. and Nicolaus, M. (2016)
Timing and regional patterns of snowmelt on Antarctic sea ice from passive microwave satellite observations ,
Journal of Geophysical Research: Oceans, 121 (8), pp. 5916-5930 .
doi:https://www.doi.org/10.1002/2015jc011504 , hdl:10013/epic.48385
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Article
Hoppmann, M. , Nicolaus, M. , Paul, S. , Hunkeler, P. A. , Heinemann, G. , Willmes, S. , Timmermann, R. , Boebel, O. , Schmidt, T. , Kühnel, M. , König-Langlo, G. and Gerdes, R. (2015)
Ice platelets below Weddell Sea landfast sea ice ,
Annals of Glaciology, 56 (69), pp. 175-190 .
doi:https://www.doi.org/10.3189/2015aog69a678 , hdl:10013/epic.44916
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Article
Paul, S. , Willmes, S. , Hoppmann, M. , Hunkeler, P. A. , Wesche, C. , Nicolaus, M. , Heinemann, G. and Timmermann, R. (2015)
The impact of early-summer snow properties on Antarctic landfast sea-ice X-band backscatter ,
Annals of Glaciology, 56 (69), pp. 263-273 .
doi:https://www.doi.org/10.3189/2015aog69a715 , hdl:10013/epic.45622

Article
Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X, Linow, S. , Wesche, C. ORCID: https://orcid.org/0000-0002-9786-4010, Rack, W. , Hoppmann, M. ORCID: https://orcid.org/0000-0003-1294-9531 and Willmes, S. (2013)
TSX-Data for Studies of Snow on Ice Sheets And Sea Ice - Preliminary Results ,
5. TerraSAR-X / 4. Tandem-X Science Team Meeting .
hdl:10013/epic.42053
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Article
Krumpen, T. ORCID: https://orcid.org/0000-0001-6234-8756, Janout, M. ORCID: https://orcid.org/0000-0003-4908-2855, Hodges, K. I. , Gerdes, R. , Girard-Ardhuin, F. , Hölemann, J. ORCID: https://orcid.org/0000-0001-5102-4086 and Willmes, S. (2013)
Variability and trends in Laptev Sea ice outflow between 1992--2011 ,
The Cryosphere, 7 , pp. 1-15 .
doi:10.5194/tc-7-1-2013 , hdl:10013/epic.41130
[thumbnail of tc-2012-90-typeset_manuscript-version8.pdf]
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Article
Adams, S. , Willmes, S. , Schroder, D. , Heinemann, G. , Bauer, M. and Krumpen, T. (2012)
Improvement and Sensitivity Analysis of Thermal Thin-Ice Thickness Retrievals ,
IEEE Transactions on Geoscience and Remote Sensing, 51 (6), pp. 3306-3318 .
doi:https://www.doi.org/10.1109/tgrs.2012.2219539 , hdl:10013/epic.40665
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Article
Nicolaus, M. ORCID: https://orcid.org/0000-0003-0903-1746, Haas, C. ORCID: https://orcid.org/0000-0002-7674-3500 and Willmes, S. (2011)
Correction to "Evolution of first- and second-year snow properties on sea ice in the Weddell Sea during spring-summer transition (vol 114, D17109, 2009)" ,
Journal of Geophysical Research-Atmospheres .
doi:10.1029/2011jd016116 , hdl:10013/epic.42221
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Article
Adams, S. , Willmes, S. , Heinemann, G. , Rozman, P. , Timmermann, R. and Schröder, D. (2011)
Evaluation of simulated sea-ice concentrations from sea-ice/ ocean models using satellite data and polynya classification methods ,
Polar Research, 30 (7124) .
doi:10.3402/polar.v30i0.7124 , hdl:10013/epic.43032

Article
Willmes, S. , Haas, C. and Nicolaus, M. (2011)
High radar-backscatter regions on Antarctic sea-ice and their relation to sea-ice and snow properties and meteorological conditions ,
International Journal of Remote Sensing, 32 (14), pp. 3967-3984 .
doi:https://www.doi.org/10.1080/01431161003801344 , hdl:10013/epic.36083
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Article
Kern, S. , Ozsoy-Cicek, B. , Willmes, S. , Nicolaus, M. , Haas, C. and Ackley, S. (2011)
An intercomparison between AMSR-E snow-depth and satellite C- and Ku-band radar backscatter data for Antarctic sea ice ,
Annals of Glaciology, 52 (57), pp. 279-290 .
doi:https://www.doi.org/10.3189/172756411795931750 , hdl:10013/epic.36987
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Article
Krumpen, T. , Willmes, S. , Morales Maqueda, M. A. , Haas, C. , Hölemann, J. A. , Gerdes, R. and Schröder, D. (2010)
Evaluation of a polynya flux model by means of thermal infrared satellite estimates ,
Annals of Glaciology, 52 (57), pp. 52-60 .
doi:https://www.doi.org/10.3189/172756411795931615 , hdl:10013/epic.36264

Article
Dmitrenko, I. A. , Kirillov, S. A. , Krumpen, T. , Makhotin, M. , Povl Abrahamsen, E. , Willmes, S. , Bloshkina, E. , Hölemann, J. A. , Kassens, H. and Wegner, C. (2010)
Wind-driven diversion of summer river runoff preconditions the Laptev Sea coastal polynya hydrography: Evidence from summer-to-winter hydrographic records of 2007–2009 ,
Continental Shelf Research, 30 (15), pp. 1656-1664 .
doi:https://www.doi.org/10.1016/j.csr.2010.06.012 , hdl:10013/epic.35909

Article
Nicolaus, M. , Haas, C. and Willmes, S. (2009)
Evolution of first-year and second-year snow properties on sea ice in the Weddell Sea during spring-summer transition ,
Journal of Geophysical Research, 114 (D17) .
doi:https://www.doi.org/10.1029/2008jd011227 , hdl:10013/epic.33300
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Article
Willmes, S. , Bareiss, J. , Haas, C. and Nicolaus, M. (2009)
Observing snowmelt dynamics on fast ice in Kongsfjorden, Svalbard, with NOAA/AVHRR data and field measurements ,
Polar Research, 28 (2), pp. 203-213 .
doi:https://www.doi.org/10.1111/j.1751-8369.2009.00095.x , hdl:10013/epic.33301
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Article
Willmes, S. , Haas, C. , Nicolaus, M. and Bareiss, J. (2009)
Satellite microwave observations of the interannual variability of snowmelt on sea ice in the Southern Ocean ,
Journal of Geophysical Research, 114 (C3) .
doi:https://www.doi.org/10.1029/2008jc004919 , hdl:10013/epic.32134
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Article
Haas, C. , Nicolaus, M. , Willmes, S. , Worby, A. and Flinspach, D. (2008)
Sea ice and snow thickness and physical properties of an ice floe in the western Weddell Sea and their changes during spring warming ,
Deep Sea Research Part II: Topical Studies in Oceanography, 55 (8-9), pp. 963-974 .
doi:https://www.doi.org/10.1016/j.dsr2.2007.12.020 , hdl:10013/epic.30568
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Article
Willmes, S. , Bareiss, J. and Haas, C. (2007)
New data set of onset of annual snowmelt on Antarctic sea ice ,
Eos, Transactions American Geophysical Union, 88 (22), pp. 237-241 .
doi:https://www.doi.org/10.1029/2007eo220002 , hdl:10013/epic.26833
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Conference

Conference -Poster
Arndt, S. ORCID: https://orcid.org/0000-0001-9782-3844, Nicolaus, M. ORCID: https://orcid.org/0000-0003-0903-1746, Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X, Willmes, S. and Haas, C. ORCID: https://orcid.org/0000-0002-7674-3500 (2017)
Seasonal transition of sea-ice and snow properties from remote sensing and in-situ measurements ,
Highlights aus der Helmholtz-Allianz „Fernerkundung und Dynamik des Erdsystems” und Zukunftsperspektiven durch Tandem-L, Berlin, Germany, 23 November 2017 - 23 November 2017 .
hdl:10013/epic.16b1ab83-e42e-4c96-93f5-5e2bba4ec21e
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Conference -Talk
Arndt, S. ORCID: https://orcid.org/0000-0001-9782-3844, Willmes, S. , Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X and Nicolaus, M. ORCID: https://orcid.org/0000-0003-0903-1746 (2016)
Timing and regional patterns of snowmelt on Antarctic sea ice from passive microwave satellite observations ,
XXXIV SCAR Open Science Conference, Kuala Lumpur, Malaysia, 20 August 2016 - 30 August 2016 .
hdl:10013/epic.48392
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Conference -Poster
Arndt, S. ORCID: https://orcid.org/0000-0001-9782-3844, Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X, Nicolaus, M. ORCID: https://orcid.org/0000-0003-0903-1746 and Willmes, S. (2015)
Regional patterns of snowmelt on Antarctic sea ice based on passive microwave data ,
AGU Fall meeting, San Francisco, CA, USA, 14 December 2015 - 18 December 2015 .
hdl:10013/epic.46908
[thumbnail of 201512_poster_agu_sarndt_small.pdf]
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Conference -Poster
Arndt, S. ORCID: https://orcid.org/0000-0001-9782-3844, Nicolaus, M. ORCID: https://orcid.org/0000-0003-0903-1746, Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X and Willmes, S. (2015)
Snowmelt detection on Antarctic sea ice based on passive microwave data ,
Internationale Polartagung, München, 6 September 2015 - 11 September 2015 .
hdl:10013/epic.46366
[thumbnail of 20150907_poster_polartagung_sarndt.pdf]
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Conference -Poster
Arndt, S. ORCID: https://orcid.org/0000-0001-9782-3844, Nicolaus, M. ORCID: https://orcid.org/0000-0003-0903-1746, Dierking, W. ORCID: https://orcid.org/0000-0002-5031-648X and Willmes, S. (2014)
Detection and quantification of sea-ice melt ,
International Symposium on Sea ice in a Changing Environment, Hobart (Tasmania, Australia), 9 March 2014 - 14 March 2014 .
hdl:10013/epic.43287
[thumbnail of 201403_sarndt_IGS_poster_3.pdf]
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Conference -Poster
Hoppmann, M. ORCID: https://orcid.org/0000-0003-1294-9531, Nicolaus, M. ORCID: https://orcid.org/0000-0003-0903-1746, Paul, S. ORCID: https://orcid.org/0000-0002-5136-714X, Willmes, S. , Heinemann, G. and Timmermann, R. (2013)
Sea-Ice Mass Balance Influenced by Ice Shelves ,
Koordinationsworkshop SPP Antarktisforschung, Bochum, 27 September 2013 - 29 September 2013 .
hdl:10013/epic.42766
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Conference -Poster
Hoppmann, M. ORCID: https://orcid.org/0000-0003-1294-9531, Nicolaus, M. ORCID: https://orcid.org/0000-0003-0903-1746, Heinemann, G. , Willmes, S. , Paul, S. and Timmermann, R. (2012)
Sea-Ice Mass Balance Influenced by Ice Shelves ,
Koordinationsworkshop DFG-Schwerpunktprogramm 1158, Jena, 26 September 2012 - 28 September 2012 .
hdl:10013/epic.40156
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Conference -Talk
Krumpen, T. ORCID: https://orcid.org/0000-0001-6234-8756, Köberle, C. , Hendricks, S. ORCID: https://orcid.org/0000-0002-1412-3146, Rabenstein, L. , Willmes, S. and Gerdes, R. (2011)
Investigation Of Sea Ice Formation On Arctic Shelves By Means Of Helicopter-Borne Ice Thickness Measurements And Different Satellites ,
International Union of Geodesy and Geophysics (IUGG) General Assembly, Melbourne, Australia, 28 June 2011 - 7 July 2011 .
hdl:10013/epic.38550

Conference -Paper
Busche, T. , Hajnsek, I. , Papathanassiou, K. , Krumpen, T. , Rabenstein, L. , Hoelemann, J. , Haas, C. and Willmes, S. (2009)
Comparison of helicopter-borne thin sea ice thickness profiles with polarimetric signatures of dual-pol Terrasar-X data ,
IEEE International Geoscience & Remote Sensing Symposium, Cape Town, Africa .
doi:https://www.doi.org/10.1109/igarss.2009.5418046 , hdl:10013/epic.36269

Conference -Paper
Willmes, S. , Bareiss, J. , Haas, C. and Marcel Nicolaus (2006)
The importance of diurnal processes for the Seasonal cycle of Sea-ice microwave brightness temperatures during early Summer in the Weddell Sea, Antarctica ,
Annals of Glaciology
doi:https://www.doi.org/10.3189/172756406781811817 , hdl:10013/epic.26708
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Conference -Paper
Nicolaus, M. , Haas, C. , Bareiss, J. and Willmes, S. (2006)
A model study of differences of snow thinning on Arctic and Antarctic first-year sea ice during spring and summer ,
Annals of Glaciology
doi:https://www.doi.org/10.3189/172756406781811312 , hdl:10013/epic.24393
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Miscellaneous

Miscellaneous
Hoppmann, M. ORCID: https://orcid.org/0000-0003-1294-9531, Paul, S. ORCID: https://orcid.org/0000-0002-5136-714X, Hunkeler, P. , Baltes, U. , Kühnel, M. , Schmidt, T. , Nicolaus, M. ORCID: https://orcid.org/0000-0003-0903-1746, Heinemann, G. and Willmes, S. (2012)
Field work on Atka Bay land-fast sea ice in 2012/13
[Miscellaneous]
hdl:10013/epic.42767
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PANGAEA Documentation

PANGAEA Documentation
Preußer, A. , Heinemann, G. , Willmes, S. and Paul, S. (2016)
Circumpolar polynya regions in the Arctic (overview) ,
Bremerhaven, PANGAEA .
hdl:10013/epic.49190
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PANGAEA Documentation
Willmes, S. , Haas, C. ORCID: https://orcid.org/0000-0002-7674-3500, Nicolaus, M. ORCID: https://orcid.org/0000-0003-0903-1746, Bareiss, J. and ORCID: https://orcid.org/0000-0003-0903-1746 (2009)
Onset dates of annual snowmelt on Antarctic sea ice, further details and pictures, doi:10.1594/PANGAEA.701389 ,
Bremerhaven, PANGAEA .
hdl:10013/epic.38813
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PANGAEA Documentation
Haas, C. ORCID: https://orcid.org/0000-0002-7674-3500, Alexandrov, V. , Kern, S. , Lieser, J. , Lobach, J. , Martin, A. , Pfaffling, A. and Willmes, S. (2004)
Sea ice remote sensing, thickness profiling, and ice and snow analyses during Polarstern cruise Ark 19/1 / CryoVex2003 in the Barents Sea and Fram Strait, February 28 April 24, 2003: Cruise report ,
Alfred Wegener Institute Bremerhaven, Germany, Bremerhaven, PANGAEA, 29 p. .
hdl:10013/epic.32818
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