Peer-reviewed journal articles
2020
Fraser, A. D., Massom, R. A., Ohshima, K. I., Willmes, S., Kappes, P. J., Cartwright, J., and Porter-Smith, R. (2020). High-resolution mapping of circum-Antarctic landfast sea ice distribution, 2000–2018, Earth Syst. Sci. Data Discuss., doi.org/10.5194/essd-2020-99, in review.
Hartmann, M., Adachi, K., Eppers, O., Haas, C., Herber, A., Holzinger, R. Hünerbein, A., Jäkel, E. , Jentzsch, C., van Pinxteren, M., Wex, H., Willmes, S. , Stratmann, F. (2020). Wintertime airborne measurements of ice nucleating particles in the high Arctic: a hint to a marine, biogenic source for Ice Nucleating Particles. Geophys. Res. Lett., 0094-8276.
Reiser, F. Willmes, S. and Heinemann, G. (2020). A new algorithm for daily sea ice lead identification in the Arctic and Antarctic winter from thermal-infrared satellite imagery. Remote Sens. 2020, 12(12), 1957; doi.org/10.3390/rs12121957.
2019
Reiser, F., Willmes, S., Hausmann, U. and Heinemann, G. (2019). Predominant Sea-ice fracture zones in the Southern Ocean and their relation to bathymetry. Geophysical Research Letters, 46, doi: 10.1029/2019GL084624
Heinemann, G., Glaw, L. and Willmes, S. (2019). A Satellite-Based Climatology of Wind-Induced Surface Temperature Anomalies for the Antarctic. Remote Sensing, 11(13), 1539; doi:10.3390/rs11131539
Preusser, A., Ohshima, K., Iwamoto, K., Willmes, S. and Heinemann, G. (2019). Retrieval of wintertime sea-ice production in Arctic polynyas using thermal infrared and passive microwave remote sensing data. Journal of Geophysical Research: Oceans, 124, doi:10.1029/2019JC014976
Fraser, A.D., Ohshima, K.I., Nihashi, S., Massom, R.A., Tamura, T., Nakata, K., Williams, G.D., Carpentier, S. and Willmes, S. (2019). Landfast ice controls on sea-ice production in the Cape Darnley Polynya: A case study. Remote Sensing, 233(111315), doi:10.1016/j.rse.2019.111315
2016
Hellmer, H., Rhein, M., Heinemann, G. and 36 others (2016). Meteorology and oceanography of the Atlantic sector of the Southern Ocean—a review of German achievements from the last decade. Ocean Dynamics, doi:10.1007/s10236-016-0988-1
Preußer, A., Heinemann, G., Willmes, S. and Paul, S. (2016). Circumpolar polynya regions and ice production in the Arctic: Results from MODIS thermal infrared imagery for 2002/2003 to 2014/2015 with a regional focus on the Laptev Sea. The Cryosphere, 10, 3021-3042, doi:10.5194/tc-10-3021-2016
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. J. Geophys. Res. Oceans, 121, doi:10.1002/2015JC011504
Gutjahr, O., Heinemann, G., Preußer, A., Willmes, S., and G. Heinemann (2016): Sensitivity of ice production estimates in Laptev Sea polynyas to the parameterization of subgrid-scale sea-ice inhomogeneities in COSMO-CLM. The Cryosphere, 10, 2999-3019, doi:10.5194/tc-10-2999-2016
Willmes, S. and Heinemann, G. (2016): Sea-ice wintertime lead frequencies and regional characteristics in the Arctic, 2003-2015. Remote Sensing, Special Issue: Sea Ice Remote Sensing and Analysis, 8(1), 4; doi:10.3390/rs8010004
2015
Preußer, A., Heinemann, G., Willmes, S., and Paul, S. (2015): Multi-Decadal Variability of Polynya Characteristics and Ice Production in the North Water Polynya by Means of Passive Microwave and Thermal Infrared Satellite Imagery. Remote Sensing, 7(12), 15844-15867, doi:10.3390/rs71215807.
Willmes, S. and Heinemann, G. (2015): Pan-Arctic lead detection from MODIS thermal infrared imagery. Annals of Glaciology 56(69), 29-37, doi:10.3189/2015AoG69A615.
Preußer, A., Willmes, S., Heinemann, G., and Paul, S. (2015): Thin-ice dynamics and ice production in the Storfjorden polynya for winter-seasons 2002/2003–2013/2014 using MODIS thermal infrared imagery. The Cryosphere, 9, 1063-1073, doi: 10.5194/tc-9-1063-2015.
Paul, S., Willmes, S., Heinemann, G. (2015): Long-term coastal-polynya dynamics in the southern Weddell Sea from MODIS thermal-infrared imagery. The Cryosphere, 9, 2027-2041, doi:10.5194/tc-9-2027-2015.
Gutjahr, O., Drüe, C.,Preußer, A., Willmes, S. and Günther Heinemann (2015): Implementation of a tile-approach for the energy balance over fractional sea ice in COSMO-CLM and its effect on ice production rates of Laptev Sea polynyas. The Cryosphere, in prep.
Paul, S., Willmes, S., Gutjahr, O., Preußer, A., Heinemann, G. (2015): Spatial Feature Reconstruction of Cloud-Covered Areas in Daily MODIS Composites, Remote Sensing, 7(5), 5042-5056; doi:10.3390/rs70505042.
Paul, S., Willmes, S., Hoppmann, M., Hunkeler, P.A., Wesche, C., Nicolaus, M., Timmermann, R., Heinemann, G. (2015): The impact of early-summer snow properties on Antarctic landfast sea-ice X-band backscatter, Annals of Glaciology, 56(69), 263-273, doi: 10.3189/2015AoG69A715.
2014
Preußer, A., Willmes, S., Heinemann, G., and Paul, S. (2014): Thin-ice dynamics and ice production in the Storfjorden polynya for winter-seasons 2002/2003–2013/2014 using MODIS thermal infrared imagery, The Cryosphere Discuss., 8, 5763-5791, doi:10.5194/tcd-8-5763-2014.
Willmes, S., Nicolaus, M. and Haas, C. (2014): The microwave emissivity variability of snow covered first-year sea ice from late winter to early summer: a model study. The Cryosphere, 8, 891-904, doi:10.5194/tc-8-891-2014.
2013
Willmes, S. and G. Heinemann, 2013: Pan-Arctic lead detection from MODIS thermal infrared imagery. Annals of Glaciology 69 (submitted).
Jardon, F., F. Vivier , P. Bouruet-Aubertot , A. Lourenco , Y. Cuypers , S. Willmes, 2013: Ice Production in Storfjorden (Svalbard) estimated from a model based on AMSR-E bservations: impact on water mass properties. Journal of Geophysical Research, doi: 10.1002/2013JC009322 (in press).
Bauer, M., D. Schröder, G. Heinemann, S. Willmes & L. Ebner 2013: Quantifying polynya ice production in the Laptev Sea with the COSMO model. Polar Research 32, 0, DOI: 10.3402/polar.v32i0.20922.
Adams, S., S. Willmes, D. Schröder, G. Heinemann, M. Bauer, T. Krumpen, 2013: Improvement and sensitivity analysis of thermal thin-ice retrievals. IEEE Transactions on Geoscience and Remote Sensing 99, doi 10.1109/TGRS.2012.2219539.
2012
Krumpen, T., M. Janout, K. I. Hodges, R. Gerdes, F. Girard-Ardhuin, J. A. Hölemann, and S. Willmes, 2012. Variability and trends in Laptev Sea ice outflow between 1992–2011, The Cryosphere Discuss., 6, 1–40.
2011
Willmes, S., S. Adams, D. Schröder, G. Heinemann, (2011): Daily ice production and polynya area in the Laptev Sea region during 1979-2009. http://doi.pangaea.de/10.1594/PANGAEA.793229.
Willmes, S., C. Haas and M. Nicolaus, 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, 3967–3984.
Krumpen, T., S. Willmes, M.A. Morales Maqueda, C. Haas, J.A. Hölemann, R. Gerdes and D. Schröder, 2011. Verification of a polynya flux model by means of thermal infrared satellite observations. Annals of Glaciology, 52 (57), 52-60.
Schröder, D., G. Heinemann, and S. Willmes, 2011: Implementation of a thermodynamic sea ice module in the NWP model COSMO and its impact on simulations for the Laptev Sea area in the Siberian Arctic. Polar Research, 30, 6334, doi: 10.3402/polar.v30i0.7124.6334
Adams, S., S. Willmes, G. Heinemann, P. Rozman, R. Timmermann, and D. Schröder, 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
Willmes, S.; S. Adams, D. Schroeder and G. Heinemann, 2011: Spatiotemporal variability of sea-ice coverage, polynya dynamics and ice production in the Laptev Sea between 1979 and 2008. Polar Research, 30, 5971, doi:10.3402/polar.v30i0.5971.
Krumpen, T., J.A. Hölemann, S. Willmes, M.A. Morales Maqueda, T. Busche, I.A. Dmitrenko, R. Gerdes, C. Haas, G. Heinemann, S. Hendricks, H. Kassens, L. Rabenstein and D. Schröder, 2011: Sea ice production and water mass modification in the eastern Laptev Sea. Journal of Geophysical Research 116, C05014, 17pp, doi:10.1029/2010JC006545.
Kern, S., B. Ozsoy-Cicek, S. Willmes, M. Nicolaus, C. Haas and S. Ackley, 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), 279-290.
2010-2006
Dmitrenko I.A., S.A. Kirillov, T. Krumpen, M. Makhotin, E.P. Abrahamsen, S. Willmes, E. Bloshkina, J.A. Hölemann, H. Kassens and C. Wegner, 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), 1656-1664.
Bauch D., Hölemann J., Willmes S., Gröger M., Novikhin A., Nikulina A., Kassens H., Timokhov L., 2010. Changes in distribution of brine waters on the Laptev Sea shelf in 2007. Journal of Geophysical Research,115(C11008), doi:10.1029/2010JC006249.
Willmes, S., T. Krumpen, S. Adams, L. Rabenstein, C. Haas, S. Hendricks, G. Heinemann and J. Hoelemann, 2010. Cross-Validation of polynya monitoring methods from multi-sensor satellite and airborne data: A case study. Canadian Journal of Remote Sensing, 36, Suppl.. 1, 196-S210.
Dmitrenko, I.A., S.A. Kirillov, L.B. Tremblay, D. Bauch and S. Willmes, 2009. Sea-ice production over the Laptev Sea shelf inferred from historical summer-to-winter hydrographic observations of 1960s-1990s. Geophysical Research Letters, 36, L13605, doi:10.1029/2009GL038775.
Willmes, S., C. Haas, M. Nicolaus, and J. Bareiss (2009), Satellite microwave observations of the interannual variability of snowmelt on sea ice in the Southern Ocean, Journal of Geophysical Research, 114, C03006, doi:10.1029/2008JC004919.
Nicolaus, M., C. Haas and S. Willmes, 2009. Evolution of first- and second-year snow properties on sea ice in the Weddell Sea during late spring. /Journal of Geophysical Research, //114, /D17109, doi:10.1029/2008JD011227.
Willmes, S., J. Bareiss, C. Haas und M. Nicolaus, 2009. Snowmelt detection on fast ice in Kongsfjorden/Svalbard with NOAA/AVHRR data and field measurements. Polar Research, 28, 203-213.
Haas, C., M. Nicolaus, S. Willmes, A. Worby and D. Flinspach, 2008. Sea ice and snow thickness and physical properties of an ice floe in the western Weddell Sea and their changes during spring warming. Deep Sea Research II, 55(8-9), Special Issue: Ice Station Polarstern (ISPOL): Results of interdisciplinary studies on a drifting ice floe in the western Weddell Sea, 963-974.
Bareiss, J., S. Willmes, C. Haas, 2007. New data set of onset of annual snowmelt on Antarctic sea ice, EOS Transactions, 88 (22), 237, 241.
Willmes, S., J. Bareiss, C. Haas und M. Nicolaus, 2006. The importance of diurnal processes for the seasonal cycle of sea-ice microwave brightness temperatures during summer in the Weddell Sea. Annals of Glaciology, 44, 297-302.
Nicolaus, M., C. Haas, S. Willmes und J. Bareiss, 2006. Differences of snow melting on Arctic and Antarctic sea ice during spring and summer. Annals of Glaciology, 44, 147-153.
