• LarsKaleschke

Jun.-Prof. Dr. Lars Kaleschke

Professor im Amt eines Juniorprofessors
University of Hamburg
Institute of Oceanography (IfM) Bundesstr.
ZMAW ground floor, room 16
+49 (0) 40 / 42838 6518

My e-mail adress: <lars DOT kaleschke AT SPAMFREE zmaw DOT de>

• http://www.ifm.zmaw.de/de/mitarbeiter/jun-prof-dr-lars-kaleschke/

Courses

Wintersemester 2011/2012

• 63-754/5 Sea ice, Mi 11:45-13:15, ZMAW 133

Past Courses

Group

• Sea Ice Group

/Intern

Projects

• BMWi - IRO-2 Eisvorhersage und Eis-Routen-Optimierung (Ice Forecast and Route Optimization)

• NASA - Implications of Arctic Sea Ice Reduction on Tropospheric Bromine, Ozone, and Mercury Chemical Processes, Transport, and Distribution

• ESA - SMOS Ice, see Kaleschke et al. 2009; SMOS Ice User Workshop on Feb 17, 2012

• DFG - CLISAP

• DFG -SFB 512 Teilprojekt E5

• DFG - SPP Antarktisforschung AICI

• NERC - OASIS COBRA

• AWI - MELTEX

Publications

2011

• Rösel, A., Kaleschke, L., and Birnbaum, G.: Melt ponds on Arctic sea ice determined from MODIS satellite data using an artificial neural network, The Cryosphere Discuss., 5, 2991-3024, doi:10.5194/tcd-5-2991-2011, 2011

• Rösel, A., Kaleschke L., Comparison of different retrieval techniques for melt ponds on Arctic sea ice from Landsat and MODIS satellite data, Annals of Glaciology 52(57) 2011

2010

• Kaleschke, L., Maaß, N., Haas, C., Hendricks, S., Heygster, G., and Tonboe, R. T.: A sea-ice thickness retrieval model for 1.4 GHz radiometry and application to airborne measurements over low salinity sea-ice, The Cryosphere, 4, 583-592, doi:10.5194/tc-4-583-2010, 2010.

• Begoin, M., Richter, A., Weber, M., Kaleschke, L., Tian-Kunze, X., Stohl, A., Theys, N., and Burrows, J. P.: Satellite observations of long range transport of a large BrO plume in the Arctic, Atmos. Chem. Phys., 10, 6515-6526, doi:10.5194/acp-10-6515-2010, 2010.

• Mahajan, A. S., M. Shaw, H. Oetjen, K. E. Hornsby, L. J. Carpenter, L. Kaleschke, X. Tian-Kunze, J. D. Lee, S. J. Moller, P. Edwards, R. Commane, T. Ingham, D. E. Heard, and J. M. C. Plane (2010), Evidence of reactive iodine chemistry in the Arctic boundary layer, J. Geophys. Res.,115, D20303, doi:10.1029/2009JD013665

• Röhrs, J. and Kaleschke, L.: An algorithm to detect sea ice leads using AMSR-E passive microwave imagery, The Cryosphere Discuss., 4, 183-206, 2010

• Tiedje, B., A. Moll, L. Kaleschke, Comparison of temporal and spatial structures of chlorophyll derived from MODIS satellite data and ECOHAM3 model data in the North Sea, Journal of Sea Research, 64(3), 250-259, doi:10.1016/j.seares.2010.03.003, 2010
• Kern, S., L. Kaleschke, G. Spreen, Variability of the Nordic Seas ice cover derived from satellite microwave radiometry at 85 GHz: 1992-2008, Tellus A, Volume 62, Issue 4, Pages: 411–434, 2010
• Maaß, N., L. Kaleschke, Improving passive microwave sea ice concentration algorithms for coastal areas - Applications to the Baltic Sea, Tellus A, Volume 62, Issue 4, Pages: 393–410, 2010

2009

• Kaleschke, L., Maaß, N., Haas, C., Hendricks, S., Heygster, G., and Tonboe, R. T.: A sea ice thickness retrieval model for 1.4 GHz radiometry and application to airborne measurements over low salinity sea ice, The Cryosphere Discuss., 3, 995-1022, 2009 accepted for The Cryosphere

• Heygster, G., H. Wiebe, G. Spreen, L. Kaleschke 2009: AMSR-E Geolocation and Validation of Sea Ice Concentrations based on 89 GHz Data. J. of the Remote Sensing Soc. of Japan 29,1, 226-235.

• Kern, S., M. Brath, R. Fontes, M. Gade, K.-W. Gurgel, L. Kaleschke, G. Spreen, S. Schulz, A. Winderlich, and D. Stammer, "Multi3Scat - A helicopter-based scatterometer for snow-cover and sea-ice investigations", Geosci. Rem. Sens. Lett., 6(4), DOI: 10.1109/LGRS.2009.2023823, 2009

• Bauernfeind, E., E.-M. Nöthig, A. Beszczynska, K. Fahl, L. Kaleschke, K. Kreker, M. Klages, T. Soltwedel, C. Lorenzen, and J. Wegner, "Particle sedimentation patterns in the eastern Fram Strait during 2000-2005: Results from the arctic long-term observatory Hausgarten", Deep-Sea Res. I, DOI: 10.1016/j.dsr.2009.04.011, 2009
• Dmitrenko, I. A., S. A. Kirillov, V. V. Ivanov, R. A. Woodgate, I. V. Polyakov, N. Koldunov, L. Fortier, C. Lalande, L. Kaleschke, D. Bauch, J. A. Hölemann, and L. A. Timokhov, "Seasonal modification of the Arctic Ocean intermediate water layer off the eastern Laptev Sea continental shelf break", J. Geophys. Res., 114, C06010, DOI: 10.1029/2008JC005229, 2009
• Lammert A., B. Brümmer, L. Kaleschke , "Observation of cyclone-induced inertial sea-ice oscillation in Fram Strait", Geophys. Res. Lett., 36, L10503, DOI: 10.1029/2009GL037197, 2009
• Morin, S., J. Savarino, M. Frey, F. Domine, H.-W. Jacobi, L. Kaleschke, and J. M. F. Martins, "Comprehensive isotopic composition of atmospheric nitrate in the Atlantic Ocean boundary layer from 65S to 79N", J. Geophys. Res, DOI: 10.1029/2008JD010696R, 2009

• Zhao, T. L., S.L. Gong, J. W. Bottenheim, J. C. McConnell, R. Sander, L. Kaleschke, A. Richter, A. Kerkweg, K. Toyota, and L. A. Barrie, "A three dimensional model study on the production of BrO and Arctic boundary layer ozone depletion", J. Geophys. Res., DOI: 10.1029/2008JD010631, 2009

2008

• Mathew, N., G. Heygster, C. Melsheimer, L. Kaleschke, Surface emissivity of arctic sea ice at AMSU window frequencies, IEEE Trans. Geosc. Rem. Sens. 46(8), 2298-2306, 2008.
• Ferrari, C. P., C. Padova, X. Fain, P.A. Gauchard, A. Dommergue, K. Aspmo, T. Berg, W. Cairns, C. Barbante, P. Cescon, L. Kaleschke, A. Richter, F. Wittrock, C. Boutron, Atmospheric mercury depletion event stuy in Ny-Alesund (Svalbard) in spring 2005. Deposition and transformation of Hg in surface snow during springtime, Sci. Tot. Env. 397(1-3), 167-177, 2008.

• Spreen, G., L. Kaleschke, G. Heygster, Sea Ice Remote Sensing Using AMSR-E 89 GHz Channels, J. Geophys. Res., 113(C2), C02S03, 2008.

• Gascard, J.-C., J. Festy, H. le Goff, M. Weber, B. Bruemmer, M. Offermann, M. Doble, P. Wadhams, R. Forsberg, S. Hanson, H. Skourup, S. Gerland, M. Nicolaus, J.-P. Metaxian, J. Grangeon, J. Haapala, E. Rinne, C. Haas, G. Heygster, E. Jakobson, T. Palo, J. Wilkinson, L. Kaleschke, K. Claffey, B. Elder, J. Bottenheim, Exploring Arctic Transpolar Drift During Dramatic Sea Ice Retreat, Eos Trans. AGU, 89(3), doi:10.1029/2008EO030001, 2008.

2007

• Kern, S., G. Spreen, L. Kaleschke, S. De La Rosa Höhn, and G. Heygster, Polynya Signature Simulation Method polynya area in comparison to AMSR-E 89 GHz sea-ice concentrations in the Ross Sea and off the Adélie Coast, Antarctica, for 2002-05: first results, Ann. Glaciol. , 46, 409-418, 2007

• Simpson, W.R., R. von Glasow R, K. Riedel, P. Anderson, P. Ariya, J. Bottenheim, J. Burrows, L.J. Carpenter, U. Friess, M.E. Goodsite, D. Heard, M. Hutterli, H.W. Jacobi, L. Kaleschke, B. Neff, J. Plane, U. Platt, A. Richter, H. Roscoe, R. Sander, P. Shepson, J. Sodeau, A. Steffen, T. Wagner, E. Wolff, Halogens and their role in polar boundary-layer ozone depletion, Atm. Chem. Phy. 7(16), 4375-4418, 2007.

• Andersen, S., R. Tonboe, L. Kaleschke, G. Heygster, L.T. Pedersen, Intercomparison of passive microwave sea ice concentration retrievals over the high-concentration Arctic sea ice, J. Geophys. Res., 112(C8), C08004, 2007.

2006

• Sander, R., J. Burrows, L. Kaleschke, Carbonate precipitation in brine - a potential trigger for tropospheric ozone depletion events, Atm. Chem. Phys. 6, 4653-4658, 2006.

• Jacobi, H.-W., L. Kaleschke, A. Richter, A. Rozanow, J.P. Burrows, Observation of a fast ozone loss in the marginal ice zone of the Arctic Ocean, J. Geophy. Res. 111(D15), D15309, 2006.

2005

• Gauchard,P. A., K. Aspmo, C. Temme, A. Steffen, C. Ferrari, T. Berg, J. Str\"om, L. Kaleschke, A. Dommergue, E. Bahlmann, O. Magand, F. Planchon, R. Ebinghaus, C. Banic, S. Nagorski, P. Baussand, C. Boutron; Study of the Origin of Atmospheric Mercury Depletion Events recorded in Ny-Alesund, Svalbard, spring 2003, Atmos. Env. 39(39), 7620-7632, 2005.

2004

• Kaleschke, L., Richter, A., Burrows, J., Afe, O., Heygster, G., Notholt, J., Rankin, A. M., Roscoe, H. K., Hollwedel, J., Wagner, T., Jacobi, H. W., Frost flowers on sea ice as a source of sea salt and their influence on tropospheric halogen chemistry, Geophysical research letters, 31, L16114, DOI: 10.1029/2004GL020655, 2004.
• Kaleschke, L. and G. Heygster, Towards multisensor microwave remote sensing of frost flowers on sea ice. Annals of Glaciology, 39, 219-222, 2004.

2003

• Kern, S. and L. Kaleschke and D. A. Clausi, A Comparison of two 85 GHz SSM/I Ice Concentration Algorithms with AVHRR and ERS-SAR, IEEE Trans. Geosci. and Remote Sensing, 41(10), 2294-2306, 2003.

2001

• Kaleschke, L., C. Lüpkes, T. Vihma, J. Haarpaintner, A. Bochert, J. Hartmann, G. Heygster: SSM/I Sea Ice Remote Sensing for Mesoscale Ocean-Atmos\-phere Interaction Analysis. Can. J. Remote Sensing 27,5, 526-537, 2001.

Selected grey publications

• Kaleschke, L., J. Hollwedel, A. Richter, J. Burrows, O. Afe, G. Heygster, J. Notholt, H.K. Roscoe, E. W. Wolff, X. Yang 2005:Boundary-layer ozone loss near the poles - why spring and not autumn? 2nd EGU assembly, Vienna, Austria; 2005

Outreach

• Aktuelle Satellitendaten zeigen: Bereits einen Monat vor dem erwarteten Minimum geht das arktische Meereis rapide zurück, 2008

• Eisschmelze dramatischer als befürchtet, 2007

• Karbonatausfällung erklärt den Ozonabbau, 2007

• Eisblumen fördern den Ozonfraß, 2004

Conferences

Sessions chair

2010

• A21 Oceanography, Cryosphere and Freshwater Flux to the Ocean Cryosphere, Polar Oceans and the IPY

• Klimawandel und Konflikte:Versicherheitlichung versus präventive Friedenspolitik? Arktis Forum

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