Dr. Thorsten Markus

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Dr. Thorsten Markus

  • Chief , Cryospheric Sciences
  • 301.614.5882 | 301.614.5644
  • NASA/GSFC
  • Mail Code: 615
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

     Thorsten Markus is the head of NASA Goddard's Cryospheric Sciences Lab and the Project Scientist for the ICESat-2 mission. His research focuses on the development of new approaches to derive cryospheric parameters from space-borne or air-borne observations.
    Thorsten received his Ph.D. degree in Physics from the University of Bremen, Germany. He came to NASA Goddard SFC in 1996, first as an NRC post-doc, working on Antarctic coastal polynyas, and then via UMBC JCET where he still is an adjunct professor in the physics department. In 2002, he was hired as a civil servant and joined the Microwave Sensors Branch.
    He is a member of the Aqua AMSR-E Science Team, where he is responsible for the sea ice concentration and snow on sea ice products, the ICESat Science Team, and the the JAXA GCOM-W AMSR2 Science Team. He has participated in and co-led ship-borne and air-borne validation campaigns in both hemispheres. His research activities led him three times to the Antarctic and three times to the Arctic. He furthermore is working on the use of satellite-derived geophysical parameters in data analysis efforts and in data assimilation schemes to explore the role of cryospheric processes in the polar and global climate system.

    Research Interests

    polar research

     

    Publications

    Refereed

    Stroeve, J., T. Markus, L. Boisvert, J. Miller, and A. Barrett. 2014. "Changes in Arctic melt season and implications for sea ice loss." Geophys. Res. Lett., 41 (4): 1216-1225 [10.1002/2013GL058951]

    Brucker, L., D. J. Cavalieri, T. Markus, and A. Ivanoff. 2014. "NASA Team 2 Sea Ice Concentration Algorithm Retrieval Uncertainty." IEEE Transactions on Geoscience and Remote Sensing, 52 (11): 7336-7352 [10.1109/TGRS.2014.2311376]

    Herzfeld, U. C., B. W. McDonald, B. F. Wallin, et al. T. A. Neumann, T. Markus, A. C. Brenner, and C. Field. 2014. "Algorithm for Detection of Ground and Canopy Cover in Micropulse Photon-Counting Lidar Altimeter Data in Preparation for the ICESat-2 Mission ." IEEE Transactions on Geoscience and Remote Sensing, 52 (4): 2109 - 2125 [10.1109/TGRS.2013.2258350]

    Brunt, K. M., T. A. Neumann, K. M. Walsh, and T. Markus. 2014. "Determination of Local Slope on the Greenland Ice Sheet Using a Multibeam Photon-Counting Lidar in Preparation for the ICESat-2 Mission." IEEE Geosci. Remote Sensing Lett., 11 (5): 935-939 [10.1109/LGRS.2013.2282217]

    Kwok, R., T. Markus, J. Morison, et al. S. P. Palm, T. A. Neumann, K. M. Brunt, W. B. Cook, D. W. Hancock, and G. F. Cunningham. 2014. "Profiling Sea Ice with a Multiple Altimeter Beam Experimental Lidar (MABEL)." Journal of Atmospheric and Oceanic Technology, 31 (5): 1151-1168 [10.1175/JTECH-D-13-00120.1]

    Boisvert, L., T. Markus, and T. Vihma. 2013. "Moisture flux changes and trends for the entire Arctic in 2003-2011 derived from EOS Aqua data." Journal of Geophysical Research: Oceans, 118 (10): 5829-5843 [10.1002/jgrc.20414]

    Brucker, L., and T. Markus. 2013. "Arctic-scale assessment of satellite passive microwave-derived snow depth on sea ice using Operation IceBridge airborne data." Journal of Geophysical Research: Oceans, 118 (6): 2892-2905 [10.1002/jgrc.20228]

    McGill, M., T. Markus, V. Scott, and T. Neumann. 2013. "The Multiple Altimeter Beam Experimental Lidar (MABEL): An Airborne Simulator for the ICESat-2 Mission." Journal of Atmospheric and Oceanic Technology, 30 (2): 345-352 [10.1175/JTECH-D-12-00076.1]

    Kurtz, N. T., and T. Markus. 2012. "Satellite observations of Antarctic sea ice thickness and volume." J. Geophys. Res., 117 (C8): C08025 [10.1029/2012JC008141]

    Farrell, S. L., N. T. Kurtz, L. Connor, et al. B. Elder, C. Leuschen, T. Markus, D. C. McAdoo, B. Panzer, J. Richter-Menge, and J. G. Sonntag. 2012. "A First Assessment of IceBridge Snow and Ice Thickness Data Over Arctic Sea Ice." IEEE Trans. Geosci. Remote Sensing, 50 (6): 2098-2111 [10.1109/TGRS.2011.2170843]

    McPartland, L. B., T. Markus, C. L. Parkinson, and T. Vihma. 2012. "Moisture fluxes derived from EOS aqua satellite data for the north water polynya over 2003–2009." Journal of Geophysical Research, 117 (D6): D06119 [10.1029/2011JD016949]

    Cavalieri, D. J., T. Markus, A. Ivanoff, et al. J. A. Miller, L. Brucker, M. Sturm, J. Maslanik, J. F. Heinrichs, A. J. Gasiewski, C. Leuschen, W. B. Krabill, and J. G. Sonntag. 2012. "A Comparison of Snow Depth on Sea Ice Retrievals Using Airborne Altimeters and an AMSR-E Simulator." IEEE Trans. Geosci. Remote Sensing, 50 (8): 3027-3040 [10.1109/TGRS.2011.2180535]

    Markus, T., R. Massom, T. Worby, et al. V. Lytle, N. T. Kurtz, and T. Maksym. 2011. "Freeboard, snow depth, and sea ice roughness in East Antarctica from in-situ and multiple satellite data." Annals of Glaciology, 52 (57):

    Worby, A. P., A. Steer, J. L. Lieser, et al. P. Heil, D. Yi, T. Markus, I. Allison, R. A. Massom, N. Galin, and H. J. Zwally. 2011. "Regional-scale sea-ice and snow thickness distributions from in situ and satellite measurements over East Antarctica during SIPEX 2007." Deep Sea Research Part II: Topical Studies in Oceanography, 58 (9-10): 1125-1136 [10.1016/j.dsr2.2010.12.001]

    Kwok, R., B. Panzer, C. Leuschen, et al. S. Pang, T. Markus, B. Holt, and S. Gogineni. 2011. "Airborne surveys of snow depth over Arctic sea ice." J. Geophys. Res., 116 (C11): C11018 [10.1029/2011JC007371]

    Kurtz, N., T. Markus, S. Farrell, D. Worthen, and L. Boisvert. 2011. "Observations of recent Arctic sea ice volume loss and its impact on ocean-atmosphere energy exchange and ice production." J. Geophys. Res., 116 (C4): C04015 [10.1029/2010JC006235]

    Farrell, S., T. Markus, R. Kwok, and L. Connor. 2011. "Laser Altimetry Sampling Strategies over Sea Ice." Ann Glaciol, 52 (57): 69-76.

    Tedesco, M., R. H. Reichle, A. Loew, T. Markus, and J. Foster. 2010. "Dynamic Approaches for Snow Depth Retrieval From Spaceborne Microwave Brightness Temperature." IEEE Trans. Geosci. Remote Sensing, 48 (4): 1955-1967 [10.1109/TGRS.2009.2036910]

    Abdalati, W., H. J. Zwally, R. A. Bindschadler, et al. B. Csatho, S. L. Farrell, H. Fricker, D. Harding, R. Kwok, M. Lefsky, T. Markus, A. Marshak, T. A. Neumann, S. Palm, B. Schutz, B. Smith, and C. Spinhirne. 2010. "The ICESat-2 Laser Altimetry Mission." Proc. IEEE, 98 (5): 735-751 [10.1109/JPROC.2009.2034765]

    Tedesco, M., R. H. Reichle, A. Low, T. Markus, and J. L. Foster. 2010. "Dynamic approaches for snow depth retrieval from space-borne microwave brightness temperatures." IEEE Transactions on Geoscience and Remote Sensing, 48 (4): 1955-1967 [10.1109/TGRS.2009.2036910]

    Cavalieri, D. J., T. Markus, D. K. Hall, A. Ivanoff, and G. Emily. 2010. "Assessment of AMSR-E Antarctic Winter Sea-Ice Concentrations Using Aqua MODIS." IEEE Transactions on Geoscience and Remote Sensing, 48 (9): 3331- 3339 [10.1109/TGRS.2010.2046495]

    Palm, S. P., S. T. Strey, J. Spinhirne, and T. Markus. 2010. "Influence of Arctic sea ice extent on polar cloud fraction and vertical structure and implications for regional climate." J Geophys Res, 115 (D21): D21209 [10.1029/2010JD013900]

    Markus, T., J. Stroeve, and J. Miller. 2009. "Recent changes in Arctic sea ice melt onset, freezeup, and melt season length." J. Geophys. Res., 114 (C12): C12024 [10.1029/2009JC005436]

    Wiebe, H., G. Heygster, and T. Markus. 2009. "Comparison of the ASI Ice Concentration Algorithm With Landsat-7 ETM+ and SAR Imagery." IEEE Trans. Geosci. Remote Sensing, 47 (9): 3008-3015 [10.1109/TGRS.2009.2026367]

    Howell, S. E., C. Duguay, and T. Markus. 2009. "Sea ice conditions and melt season duration variability within the Canadian Arctic Archipelago: 1979–2008." Geophys Res Lett, 36 (10): L10502 [10.1029/2009GL037681]

    Markus, T., and D. J. Cavalieri. 2009. "The AMSR-E NT2 sea ice concentration algorithm: its basis and implementation." Journal of The Remote Sensing Society of Japan, 29 (1): 216-225.

    Kurtz, N., T. Markus, D. J. Cavalieri, et al. L. Sparling, B. Krabill, A. Gasiewski, and J. G. Sonntag. 2009. "Estimation of sea ice thickness distributions through the combination of snow depth and satellite laser altimetry data." J Geophys Res, 114 (C10): C10007 [10.1029/2009JC005292]

    Worby, A., T. Markus, A. Steer, V. Lytle, and R. Massom. 2008. "Evaluation of AMSR-E snow depth product over East Antarctic sea ice using in situ measurements and aerial photography." J Geophys Res, 113 (C5): C05S94 [10.1029/2007JC004181]

    Kurtz, N., T. Markus, D. J. Cavalieri, et al. B. Krabill, J. G. Sonntag, and J. Miller. 2008. "Comparison of ICESat Data With Airborne Laser Altimeter Measurements Over Arctic Sea Ice." IEEE Trans. Geosci. Remote Sensing, 46 (7): 1913-1924 [10.1109/TGRS.2008.916639]

    Maksym, T., and T. Markus. 2008. "Antarctic sea ice thickness and snow-to-ice conversion from atmospheric reanalysis and passive microwave snow depth." J. Geophys. Res., 113 (C2): C02S12 [10.1029/2006JC004085]

    Kanagaratnam, P., T. Markus, V. Lytle, et al. B. Heavey, P. Jansen, G. Prescott, and S. P. Gogineni. 2007. "Ultrawideband Radar Measurements of Thickness of Snow Over Sea Ice." IEEE Transactions on Geoscience and Remote Sensing, 45 (9): 2715-2724 [10.1109/TGRS.2007.900673]

    Perovich, D. K., S. V. Nghiem, and T. Markus. 2007. "Seasonal evolution and interannual variability of the local solar energy absorbed by the Arctic sea ice–ocean system." J. Geophys. Res., 112 (C3): C03005 [10.1029/2006JC003558]

    Tamura, T., K. I. Ohshima, T. Markus, et al. D. J. Cavalieri, S. Nihashi, and N. Hirasawa. 2007. "Estimation of thin ice thickness and detection of fast ice from SSM/I data in the Antarctic Ocean." J Atm Oceanic Techn, 24 (10): 1757.

    Cavalieri, D. J., T. Markus, J. A. Maslanik, M. Sturm, and E. Lobl. 2006. "Foreword to the March 2003 EOS Aqua AMSR-E Arctic Sea Ice Field Campaign Special Issue." IEEE Trans. Geosci. Remote Sens, 44 (11): 2999-3001.

    Markus, T., D. Powell, and J. Wang. 2006. "Sensitivity of passive microwave snow depth retrievals to weather effects and snow evolution." IEEE Trans Geoscience and Remote Sensing, 44: 68-77.

    Cavalieri, D. J., T. Markus, J. Maslanik, and M. Sturm. 2006. "March 2003 EOS Aqua AMSR-E Arctic sea ice field campaign." IEEE Trans Geosci Remote Sensing, 44: 3003-3008.

    Markus, T., and D. J. Cavalieri. 2006. "Interannual and regional variability of Southern Ocean snow on sea ice." Annals of Glaciology, 44: 53-57.

    Cavalieri, D. J., T. Markus, D. K. Hall, et al. A. Gasiewski, M. Klein, and A. Ivanoff. 2006. "Assessment of EOS Aqua AMSR-E Arctic Sea Ice Concentrations Using Landsat-7 and Airborne Microwave Imagery." IEEE Trans. Geosci. Remote Sensing, 44 (11): 3057-3069 [10.1109/TGRS.2006.878445]

    Markus, T., D. J. Cavalieri, A. Gasiewski, et al. M. Klein, J. Maslanik, D. Powell, J. Stroeve, and M. Sturm. 2006. "Microwave Signatures of Snow on Sea Ice: Observations." IEEE Trans Geosci Remote Sensing, 44: 3081-3090.

    Stroeve, J., T. Markus, J. Maslanik, et al. D. J. Cavalieri, A. Gasiewski, J. Heinrichs, J. Holmgren, D. Perovich, and M. Sturm. 2006. "Impact of Surface Roughness on AMSR-E Sea Ice Products." IEEE Trans Geosci Remote Sensing, 44: 3103-3117.

    Massom, R., A. Worby, V. Lytle, et al. T. Markus, I. Allison, T. Scambos, H. Enomoto, K. L. Tateyama, T. Haran, J. C. Comiso, A. Pfaffling, T. Tamura, A. Muto, P. Kanagaratnam, B. Giles, N. Young, G. Hyland, and E. Key. 2006. "ARISE (Antarctic Remote Sensing Experiment) in the East 2003: Validation of satellite-derived sea-ice data products." Ann Glaciol, 44 (1): 288 [10.3189/172756406781811268]

    Sturm, M., J. Maslanik, D. Perovich, et al. J. Stroeve, J. Richter-Menge, T. Markus, J. Holmgren, J. Heinrichs, and K. Tape. 2006. "Snow Depth and Ice Thickness Measurements From the Beaufort and Chukchi Seas Collected During the AMSR-Ice03 Campaign." IEEE Trans. Geosci. Remote Sensing, 44 (11): 3009-3020 [10.1109/TGRS.2006.878236]

    Maslanik, J., M. Sturm, M. Belmonte, et al. A. Gasiewski, J. Heinrichs, U. Herzfeld, J. Holmgren, M. Klein, T. Markus, D. Perovich, J. G. Sonntag, J. Stroeve, and K. Tape. 2006. "Spatial variability of Barrow-area short-fast ice and relationships to passive microwave emissivity." IEEE Trans Geoscience Rem Sens, 44 (11): 3021.

    Stroeve, J., T. Markus, W. Meier, and J. Miller. 2006. "Recent changes in the Arctic melt season." Annals of Glaciology, 44 (1): 367-374 [10.3189/172756406781811583]

    Cavalieri, D. J., and T. Markus. 2006. "EOS Aqua AMSR-E Arctic Sea Ice Validation Program: Arctic 2003 Aircraft Campaign Flight Report." NASA TM-2006-214142, 27.

    Shokr, M., and T. Markus. 2006. "Comparison of NASA Team2 and AES-york ice concentration algorithms against operational ice charts from the Canadian ice service." IEEE Trans Geoscience and Remote Sensing, 44 (8): 2164 [10.1109/TGRS.2006.872077]

    Heinrichs, J., D. J. Cavalieri, and T. Markus. 2006. "Assessment of the AMSR-E Sea Ice Concentration Product at the Ice Edge Using RADARSAT-1 and MODIS Imagery." IEEE Trans Geosci Remote Sens, 44 (11): 3070-3080 [10.1109/TGRS.2006.880622]

    Powell, D., T. Markus, and A. Stoessel. 2005. "Effects of snow depth forcing on Southern Ocean sea ice simulations." J. Geophys. Res., 110 (C6): C06001 [10.1029/2003JC002212]

    Bindschadler, R. A., H. Choi, C. A. Shuman, and T. Markus. 2005. "Detecting and measuring new snow accumulation on ice sheets by satellite remote sensing." Remote Sensing of Environment, 98 (4): 388-402 [10.1016/j.rse.2005.07.014]

    Markus, T., P. Gogineni, J. L. Green, et al. B. W. Reinisch, P. Song, S. Fung, R. F. Benson, W. L. Taylor, J. F. Cooper, L. Garcia, and D. L. Gallagher. 2003. "Surface Penetrating Radar Simulations for Jupiter`s Icy Moons." AGU Fall Meeting Abstracts, 1063-:

    Comiso, J. C., D. J. Cavalieri, and T. Markus. 2003. "Sea ice concentration, ice temperature, and snow depth using AMSR-E data." IEEE Trans. Geosci. Remote Sensing, 41 (2): 243-252 [10.1109/TGRS.2002.808317]

    Markus, T., D. J. Cavalieri, M. Tschudi, and A. Ivanoff. 2003. "Comparison of aerial video and Landsat 7 data over ponded sea ice." Remote Sens Environ, 86 (4): 458-469 [10.1016/S0034-4257(03)00124-X]

    Markus, T., and D. J. Cavalieri. 2002. "The potential of using Landsat 7 data for the classification of sea ice surface conditions during summer." Annals of Glaciology, 34: 415-419.

    Markus, T., D. J. Cavalieri, and A. Ivanoff. 2002. "The potential of using Landsat 7 ETM+ for the classification of sea-ice surface conditions during summer." Ann Glaciol, 34: 415-419.

    Markus, T., and S. T. Dokken. 2002. "Evaluation of Late Summer Passive Microwave Artic Sea Ice Retrievals." IEEE Trans Geosci Rem Sens, 40 (2): 348-356.

    Arrigo, K. R., G. L. van Dijken, D. G. Ainley, M. A. Fahnestock, and T. Markus. 2002. "Ecological impact of a large Antarctic iceberg." Geophys Res Lett, 29 (7): 8-1 - 8-4 [10.1029/2001GL014160]

    Dokken, S. T., P. Winsor, T. Markus, J. Askne, and G. Björk. 2002. "ERS SAR characterization of coastal polynyas in the Arctic and comparison with SSM/I and numerical model investigations." Rem Sens of Environ, 80 (2): 321-335 [10.1016/S0034-4257(01)00313-3]

    Renfrew, I. A., J. C. King, and T. Markus. 2002. "Coastal polynyas in the southern Weddell Sea: Variability of the surface energy budget." J Geophys Res, 107 (C6): 16-1 - 16-22 [10.1029/2000JC000720]

    Non-Refereed

    Puthalapat, D., C. Leuschen, T. Markus, et al. D. J. Cavalieri, W. B. Krabill, J. G. Sonntag, M. Sturm, and J. Maslanik. 2008. "Conjunctive Radar and Laser Altimetry Data Processing to Measure Snow Thickness." IEEE International Geoscience and Remote Sensing Symposium, 2008 (IGARSS 2008) 4: 1105 - 1108 [10.1109/IGARSS.2008.4779920]

    Kelly, J. R., and T. Markus. 2007. "Analysis of time series of satellite passive microwave observations of snow over the Colorado Cold Lands Processes Experiment study region." Proc 64th Meeting of the Eastern Snow Conference St Johns, Newfoundland, Canada, ISBN: 0-920081-29-0.

    Hilliard, L. M., P. H. Hildebrand, T. Markus, et al. C. M. Johnson, R. Lawrence, and G. L. Bland. 2005. "Microwave Instrumentation for UAV Platforms Enabling Thin Ice Measurement." AIAA Infotech@Aerospace Technical Conference, proceedings

    Hilliard, L. M., G. Bland, and T. Markus. 2005. "Autonomous Aerial Observation System Concepts for Microwave Remote Sensing." AIAA Infotech@Aerospace Technical Conference, proceedings [10.2514/6.2005-7055]

    Gogineni, S., K. Wong, S. Krishnan, et al. P. Kanagratnam, T. Markus, and V. Lytle. 2003. "An Ultra-wide Radar for Measurements of Snow Thickness Over Sea Ice." Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International 4: Toulouse, France: 2802-2804, ISBN: 0-7803-7929-2 . [10.1109/IGARSS.2003.1294591]

    Cavalieri, D. J., and T. Markus. 2003. "EOS Aqua AMSR-E Arctic Sea Ice Validation Program: Arctic 2003 Aircraft Campaign Flight Report." NASA TM-2003-212247 40.

    Shokr, M., and T. Markus. 2003. "Evaluation of Ice Concentration Algorithms Using Data Fusion of SSM/I and Radarsat." Proc IGARSS 2003 1: Toulouse, France, 65-67.

    Cavalieri, D. J., J. Maslanik, T. Markus, et al. J. C. Stroeve, M. Sturm, J. Heinrichs, E. J. Kim, A. J. Gasiewski, and J. C. Comiso. 2003. "EOS Aqua AMSR-E Arctic Sea Ice Validation Program." Proc SPIE Int Soc Opt Eng 4894: Hangzhou, China, 413-424 [10.1117/12.467791]

    Stoessel, A., and T. Markus. 2002. "Representation of Antarctic Coastal Polynyas in Ocean Climate Models: A Justification for Assimilation of Ice Concentration." Proc Report to NASA on a Workshop on Sea Ice Data Assimilation Annapolis, Maryland, 33.

    Brief Bio

     Thorsten Markus is the head of NASA Goddard's Cryospheric Sciences Lab and the Project Scientist for the ICESat-2 mission. His research focuses on the development of new approaches to derive cryospheric parameters from space-borne or air-borne observations.
    Thorsten received his Ph.D. degree in Physics from the University of Bremen, Germany. He came to NASA Goddard SFC in 1996, first as an NRC post-doc, working on Antarctic coastal polynyas, and then via UMBC JCET where he still is an adjunct professor in the physics department. In 2002, he was hired as a civil servant and joined the Microwave Sensors Branch.
    He is a member of the Aqua AMSR-E Science Team, where he is responsible for the sea ice concentration and snow on sea ice products, the ICESat Science Team, and the the JAXA GCOM-W AMSR2 Science Team. He has participated in and co-led ship-borne and air-borne validation campaigns in both hemispheres. His research activities led him three times to the Antarctic and three times to the Arctic. He furthermore is working on the use of satellite-derived geophysical parameters in data analysis efforts and in data assimilation schemes to explore the role of cryospheric processes in the polar and global climate system.

    Publications

    Refereed

    Stroeve, J., T. Markus, L. Boisvert, J. Miller, and A. Barrett. 2014. "Changes in Arctic melt season and implications for sea ice loss." Geophys. Res. Lett. 41 (4): 1216-1225 [10.1002/2013GL058951]

    Brucker, L., D. J. Cavalieri, T. Markus, and A. Ivanoff. 2014. "NASA Team 2 Sea Ice Concentration Algorithm Retrieval Uncertainty." IEEE Transactions on Geoscience and Remote Sensing 52 (11): 7336-7352 [10.1109/TGRS.2014.2311376]

    Herzfeld, U. C., B. W. McDonald, B. F. Wallin, et al. T. A. Neumann, T. Markus, A. C. Brenner, and C. Field. 2014. "Algorithm for Detection of Ground and Canopy Cover in Micropulse Photon-Counting Lidar Altimeter Data in Preparation for the ICESat-2 Mission ." IEEE Transactions on Geoscience and Remote Sensing 52 (4): 2109 - 2125 [10.1109/TGRS.2013.2258350]

    Brunt, K. M., T. A. Neumann, K. M. Walsh, and T. Markus. 2014. "Determination of Local Slope on the Greenland Ice Sheet Using a Multibeam Photon-Counting Lidar in Preparation for the ICESat-2 Mission." IEEE Geosci. Remote Sensing Lett. 11 (5): 935-939 [10.1109/LGRS.2013.2282217]

    Kwok, R., T. Markus, J. Morison, et al. S. P. Palm, T. A. Neumann, K. M. Brunt, W. B. Cook, D. W. Hancock, and G. F. Cunningham. 2014. "Profiling Sea Ice with a Multiple Altimeter Beam Experimental Lidar (MABEL)." Journal of Atmospheric and Oceanic Technology 31 (5): 1151-1168 [10.1175/JTECH-D-13-00120.1]

    Boisvert, L., T. Markus, and T. Vihma. 2013. "Moisture flux changes and trends for the entire Arctic in 2003-2011 derived from EOS Aqua data." Journal of Geophysical Research: Oceans 118 (10): 5829-5843 [10.1002/jgrc.20414]

    Brucker, L., and T. Markus. 2013. "Arctic-scale assessment of satellite passive microwave-derived snow depth on sea ice using Operation IceBridge airborne data." Journal of Geophysical Research: Oceans 118 (6): 2892-2905 [10.1002/jgrc.20228]

    McGill, M., T. Markus, V. Scott, and T. Neumann. 2013. "The Multiple Altimeter Beam Experimental Lidar (MABEL): An Airborne Simulator for the ICESat-2 Mission." Journal of Atmospheric and Oceanic Technology 30 (2): 345-352 [10.1175/JTECH-D-12-00076.1]

    Kurtz, N. T., and T. Markus. 2012. "Satellite observations of Antarctic sea ice thickness and volume." J. Geophys. Res. 117 (C8): C08025 [10.1029/2012JC008141]

    Farrell, S. L., N. T. Kurtz, L. Connor, et al. B. Elder, C. Leuschen, T. Markus, D. C. McAdoo, B. Panzer, J. Richter-Menge, and J. G. Sonntag. 2012. "A First Assessment of IceBridge Snow and Ice Thickness Data Over Arctic Sea Ice." IEEE Trans. Geosci. Remote Sensing 50 (6): 2098-2111 [10.1109/TGRS.2011.2170843]

    McPartland, L. B., T. Markus, C. L. Parkinson, and T. Vihma. 2012. "Moisture fluxes derived from EOS aqua satellite data for the north water polynya over 2003–2009." Journal of Geophysical Research 117 (D6): D06119 [10.1029/2011JD016949]

    Cavalieri, D. J., T. Markus, A. Ivanoff, et al. J. A. Miller, L. Brucker, M. Sturm, J. Maslanik, J. F. Heinrichs, A. J. Gasiewski, C. Leuschen, W. B. Krabill, and J. G. Sonntag. 2012. "A Comparison of Snow Depth on Sea Ice Retrievals Using Airborne Altimeters and an AMSR-E Simulator." IEEE Trans. Geosci. Remote Sensing 50 (8): 3027-3040 [10.1109/TGRS.2011.2180535]

    Markus, T., R. Massom, T. Worby, et al. V. Lytle, N. T. Kurtz, and T. Maksym. 2011. "Freeboard, snow depth, and sea ice roughness in East Antarctica from in-situ and multiple satellite data." Annals of Glaciology 52 (57):

    Worby, A. P., A. Steer, J. L. Lieser, et al. P. Heil, D. Yi, T. Markus, I. Allison, R. A. Massom, N. Galin, and H. J. Zwally. 2011. "Regional-scale sea-ice and snow thickness distributions from in situ and satellite measurements over East Antarctica during SIPEX 2007." Deep Sea Research Part II: Topical Studies in Oceanography 58 (9-10): 1125-1136 [10.1016/j.dsr2.2010.12.001]

    Kwok, R., B. Panzer, C. Leuschen, et al. S. Pang, T. Markus, B. Holt, and S. Gogineni. 2011. "Airborne surveys of snow depth over Arctic sea ice." J. Geophys. Res. 116 (C11): C11018 [10.1029/2011JC007371]

    Kurtz, N., T. Markus, S. Farrell, D. Worthen, and L. Boisvert. 2011. "Observations of recent Arctic sea ice volume loss and its impact on ocean-atmosphere energy exchange and ice production." J. Geophys. Res. 116 (C4): C04015 [10.1029/2010JC006235]

    Farrell, S., T. Markus, R. Kwok, and L. Connor. 2011. "Laser Altimetry Sampling Strategies over Sea Ice." Ann Glaciol 52 (57): 69-76

    Tedesco, M., R. H. Reichle, A. Loew, T. Markus, and J. Foster. 2010. "Dynamic Approaches for Snow Depth Retrieval From Spaceborne Microwave Brightness Temperature." IEEE Trans. Geosci. Remote Sensing 48 (4): 1955-1967 [10.1109/TGRS.2009.2036910]

    Abdalati, W., H. J. Zwally, R. A. Bindschadler, et al. B. Csatho, S. L. Farrell, H. Fricker, D. Harding, R. Kwok, M. Lefsky, T. Markus, A. Marshak, T. A. Neumann, S. Palm, B. Schutz, B. Smith, and C. Spinhirne. 2010. "The ICESat-2 Laser Altimetry Mission." Proc. IEEE 98 (5): 735-751 [10.1109/JPROC.2009.2034765]

    Tedesco, M., R. H. Reichle, A. Low, T. Markus, and J. L. Foster. 2010. "Dynamic approaches for snow depth retrieval from space-borne microwave brightness temperatures." IEEE Transactions on Geoscience and Remote Sensing 48 (4): 1955-1967 [10.1109/TGRS.2009.2036910]

    Cavalieri, D. J., T. Markus, D. K. Hall, A. Ivanoff, and G. Emily. 2010. "Assessment of AMSR-E Antarctic Winter Sea-Ice Concentrations Using Aqua MODIS." IEEE Transactions on Geoscience and Remote Sensing 48 (9): 3331- 3339 [10.1109/TGRS.2010.2046495]

    Palm, S. P., S. T. Strey, J. Spinhirne, and T. Markus. 2010. "Influence of Arctic sea ice extent on polar cloud fraction and vertical structure and implications for regional climate." J Geophys Res 115 (D21): D21209 [10.1029/2010JD013900]

    Markus, T., J. Stroeve, and J. Miller. 2009. "Recent changes in Arctic sea ice melt onset, freezeup, and melt season length." J. Geophys. Res. 114 (C12): C12024 [10.1029/2009JC005436]

    Wiebe, H., G. Heygster, and T. Markus. 2009. "Comparison of the ASI Ice Concentration Algorithm With Landsat-7 ETM+ and SAR Imagery." IEEE Trans. Geosci. Remote Sensing 47 (9): 3008-3015 [10.1109/TGRS.2009.2026367]

    Howell, S. E., C. Duguay, and T. Markus. 2009. "Sea ice conditions and melt season duration variability within the Canadian Arctic Archipelago: 1979–2008." Geophys Res Lett 36 (10): L10502 [10.1029/2009GL037681]

    Markus, T., and D. J. Cavalieri. 2009. "The AMSR-E NT2 sea ice concentration algorithm: its basis and implementation." Journal of The Remote Sensing Society of Japan 29 (1): 216-225

    Kurtz, N., T. Markus, D. J. Cavalieri, et al. L. Sparling, B. Krabill, A. Gasiewski, and J. G. Sonntag. 2009. "Estimation of sea ice thickness distributions through the combination of snow depth and satellite laser altimetry data." J Geophys Res 114 (C10): C10007 [10.1029/2009JC005292]

    Worby, A., T. Markus, A. Steer, V. Lytle, and R. Massom. 2008. "Evaluation of AMSR-E snow depth product over East Antarctic sea ice using in situ measurements and aerial photography." J Geophys Res 113 (C5): C05S94 [10.1029/2007JC004181]

    Kurtz, N., T. Markus, D. J. Cavalieri, et al. B. Krabill, J. G. Sonntag, and J. Miller. 2008. "Comparison of ICESat Data With Airborne Laser Altimeter Measurements Over Arctic Sea Ice." IEEE Trans. Geosci. Remote Sensing 46 (7): 1913-1924 [10.1109/TGRS.2008.916639]

    Maksym, T., and T. Markus. 2008. "Antarctic sea ice thickness and snow-to-ice conversion from atmospheric reanalysis and passive microwave snow depth." J. Geophys. Res. 113 (C2): C02S12 [10.1029/2006JC004085]

    Kanagaratnam, P., T. Markus, V. Lytle, et al. B. Heavey, P. Jansen, G. Prescott, and S. P. Gogineni. 2007. "Ultrawideband Radar Measurements of Thickness of Snow Over Sea Ice." IEEE Transactions on Geoscience and Remote Sensing 45 (9): 2715-2724 [10.1109/TGRS.2007.900673]

    Perovich, D. K., S. V. Nghiem, and T. Markus. 2007. "Seasonal evolution and interannual variability of the local solar energy absorbed by the Arctic sea ice–ocean system." J. Geophys. Res. 112 (C3): C03005 [10.1029/2006JC003558]

    Tamura, T., K. I. Ohshima, T. Markus, et al. D. J. Cavalieri, S. Nihashi, and N. Hirasawa. 2007. "Estimation of thin ice thickness and detection of fast ice from SSM/I data in the Antarctic Ocean." J Atm Oceanic Techn 24 (10): 1757

    Cavalieri, D. J., T. Markus, J. A. Maslanik, M. Sturm, and E. Lobl. 2006. "Foreword to the March 2003 EOS Aqua AMSR-E Arctic Sea Ice Field Campaign Special Issue." IEEE Trans. Geosci. Remote Sens 44 (11): 2999-3001

    Markus, T., D. Powell, and J. Wang. 2006. "Sensitivity of passive microwave snow depth retrievals to weather effects and snow evolution." IEEE Trans Geoscience and Remote Sensing 44 68-77

    Cavalieri, D. J., T. Markus, J. Maslanik, and M. Sturm. 2006. "March 2003 EOS Aqua AMSR-E Arctic sea ice field campaign." IEEE Trans Geosci Remote Sensing 44 3003-3008

    Markus, T., and D. J. Cavalieri. 2006. "Interannual and regional variability of Southern Ocean snow on sea ice." Annals of Glaciology 44 53-57

    Cavalieri, D. J., T. Markus, D. K. Hall, et al. A. Gasiewski, M. Klein, and A. Ivanoff. 2006. "Assessment of EOS Aqua AMSR-E Arctic Sea Ice Concentrations Using Landsat-7 and Airborne Microwave Imagery." IEEE Trans. Geosci. Remote Sensing 44 (11): 3057-3069 [10.1109/TGRS.2006.878445]

    Markus, T., D. J. Cavalieri, A. Gasiewski, et al. M. Klein, J. Maslanik, D. Powell, J. Stroeve, and M. Sturm. 2006. "Microwave Signatures of Snow on Sea Ice: Observations." IEEE Trans Geosci Remote Sensing 44 3081-3090

    Stroeve, J., T. Markus, J. Maslanik, et al. D. J. Cavalieri, A. Gasiewski, J. Heinrichs, J. Holmgren, D. Perovich, and M. Sturm. 2006. "Impact of Surface Roughness on AMSR-E Sea Ice Products." IEEE Trans Geosci Remote Sensing 44 3103-3117

    Massom, R., A. Worby, V. Lytle, et al. T. Markus, I. Allison, T. Scambos, H. Enomoto, K. L. Tateyama, T. Haran, J. C. Comiso, A. Pfaffling, T. Tamura, A. Muto, P. Kanagaratnam, B. Giles, N. Young, G. Hyland, and E. Key. 2006. "ARISE (Antarctic Remote Sensing Experiment) in the East 2003: Validation of satellite-derived sea-ice data products." Ann Glaciol 44 (1): 288 [10.3189/172756406781811268]

    Sturm, M., J. Maslanik, D. Perovich, et al. J. Stroeve, J. Richter-Menge, T. Markus, J. Holmgren, J. Heinrichs, and K. Tape. 2006. "Snow Depth and Ice Thickness Measurements From the Beaufort and Chukchi Seas Collected During the AMSR-Ice03 Campaign." IEEE Trans. Geosci. Remote Sensing 44 (11): 3009-3020 [10.1109/TGRS.2006.878236]

    Maslanik, J., M. Sturm, M. Belmonte, et al. A. Gasiewski, J. Heinrichs, U. Herzfeld, J. Holmgren, M. Klein, T. Markus, D. Perovich, J. G. Sonntag, J. Stroeve, and K. Tape. 2006. "Spatial variability of Barrow-area short-fast ice and relationships to passive microwave emissivity." IEEE Trans Geoscience Rem Sens 44 (11): 3021

    Stroeve, J., T. Markus, W. Meier, and J. Miller. 2006. "Recent changes in the Arctic melt season." Annals of Glaciology 44 (1): 367-374 [10.3189/172756406781811583]

    Cavalieri, D. J., and T. Markus. 2006. "EOS Aqua AMSR-E Arctic Sea Ice Validation Program: Arctic 2003 Aircraft Campaign Flight Report." NASA TM-2006-214142 27

    Shokr, M., and T. Markus. 2006. "Comparison of NASA Team2 and AES-york ice concentration algorithms against operational ice charts from the Canadian ice service." IEEE Trans Geoscience and Remote Sensing 44 (8): 2164 [10.1109/TGRS.2006.872077]

    Heinrichs, J., D. J. Cavalieri, and T. Markus. 2006. "Assessment of the AMSR-E Sea Ice Concentration Product at the Ice Edge Using RADARSAT-1 and MODIS Imagery." IEEE Trans Geosci Remote Sens 44 (11): 3070-3080 [10.1109/TGRS.2006.880622]

    Powell, D., T. Markus, and A. Stoessel. 2005. "Effects of snow depth forcing on Southern Ocean sea ice simulations." J. Geophys. Res. 110 (C6): C06001 [10.1029/2003JC002212]

    Bindschadler, R. A., H. Choi, C. A. Shuman, and T. Markus. 2005. "Detecting and measuring new snow accumulation on ice sheets by satellite remote sensing." Remote Sensing of Environment 98 (4): 388-402 [10.1016/j.rse.2005.07.014]

    Markus, T., P. Gogineni, J. L. Green, et al. B. W. Reinisch, P. Song, S. Fung, R. F. Benson, W. L. Taylor, J. F. Cooper, L. Garcia, and D. L. Gallagher. 2003. "Surface Penetrating Radar Simulations for Jupiter`s Icy Moons." AGU Fall Meeting Abstracts 1063-

    Comiso, J. C., D. J. Cavalieri, and T. Markus. 2003. "Sea ice concentration, ice temperature, and snow depth using AMSR-E data." IEEE Trans. Geosci. Remote Sensing 41 (2): 243-252 [10.1109/TGRS.2002.808317]

    Markus, T., D. J. Cavalieri, M. Tschudi, and A. Ivanoff. 2003. "Comparison of aerial video and Landsat 7 data over ponded sea ice." Remote Sens Environ 86 (4): 458-469 [10.1016/S0034-4257(03)00124-X]

    Markus, T., and D. J. Cavalieri. 2002. "The potential of using Landsat 7 data for the classification of sea ice surface conditions during summer." Annals of Glaciology 34 415-419

    Markus, T., D. J. Cavalieri, and A. Ivanoff. 2002. "The potential of using Landsat 7 ETM+ for the classification of sea-ice surface conditions during summer." Ann Glaciol 34 415-419

    Markus, T., and S. T. Dokken. 2002. "Evaluation of Late Summer Passive Microwave Artic Sea Ice Retrievals." IEEE Trans Geosci Rem Sens 40 (2): 348-356

    Arrigo, K. R., G. L. van Dijken, D. G. Ainley, M. A. Fahnestock, and T. Markus. 2002. "Ecological impact of a large Antarctic iceberg." Geophys Res Lett 29 (7): 8-1 - 8-4 [10.1029/2001GL014160]

    Dokken, S. T., P. Winsor, T. Markus, J. Askne, and G. Björk. 2002. "ERS SAR characterization of coastal polynyas in the Arctic and comparison with SSM/I and numerical model investigations." Rem Sens of Environ 80 (2): 321-335 [10.1016/S0034-4257(01)00313-3]

    Renfrew, I. A., J. C. King, and T. Markus. 2002. "Coastal polynyas in the southern Weddell Sea: Variability of the surface energy budget." J Geophys Res 107 (C6): 16-1 - 16-22 [10.1029/2000JC000720]

    Non-Refereed

    Puthalapat, D., C. Leuschen, T. Markus, et al. D. J. Cavalieri, W. B. Krabill, J. G. Sonntag, M. Sturm, and J. Maslanik. 2008. "Conjunctive Radar and Laser Altimetry Data Processing to Measure Snow Thickness." IEEE International Geoscience and Remote Sensing Symposium, 2008 (IGARSS 2008) 4 1105 - 1108 [10.1109/IGARSS.2008.4779920]

    Kelly, J. R., and T. Markus. 2007. "Analysis of time series of satellite passive microwave observations of snow over the Colorado Cold Lands Processes Experiment study region." Proc 64th Meeting of the Eastern Snow Conference

    Hilliard, L. M., P. H. Hildebrand, T. Markus, et al. C. M. Johnson, R. Lawrence, and G. L. Bland. 2005. "Microwave Instrumentation for UAV Platforms Enabling Thin Ice Measurement." AIAA Infotech@Aerospace Technical Conference, proceedings

    Hilliard, L. M., G. Bland, and T. Markus. 2005. "Autonomous Aerial Observation System Concepts for Microwave Remote Sensing." AIAA Infotech@Aerospace Technical Conference, proceedings [10.2514/6.2005-7055]

    Gogineni, S., K. Wong, S. Krishnan, et al. P. Kanagratnam, T. Markus, and V. Lytle. 2003. "An Ultra-wide Radar for Measurements of Snow Thickness Over Sea Ice." Geoscience and Remote Sensing Symposium, 2003. IGARSS '03. Proceedings. 2003 IEEE International 4 2802-2804 [10.1109/IGARSS.2003.1294591]

    Cavalieri, D. J., and T. Markus. 2003. "EOS Aqua AMSR-E Arctic Sea Ice Validation Program: Arctic 2003 Aircraft Campaign Flight Report." NASA TM-2003-212247 40

    Shokr, M., and T. Markus. 2003. "Evaluation of Ice Concentration Algorithms Using Data Fusion of SSM/I and Radarsat." Proc IGARSS 2003 1 65-67

    Cavalieri, D. J., J. Maslanik, T. Markus, et al. J. C. Stroeve, M. Sturm, J. Heinrichs, E. J. Kim, A. J. Gasiewski, and J. C. Comiso. 2003. "EOS Aqua AMSR-E Arctic Sea Ice Validation Program." Proc SPIE Int Soc Opt Eng 4894 413-424 [10.1117/12.467791]

    Stoessel, A., and T. Markus. 2002. "Representation of Antarctic Coastal Polynyas in Ocean Climate Models: A Justification for Assimilation of Ice Concentration." Proc Report to NASA on a Workshop on Sea Ice Data Assimilation 33

                                                                                                                                                                                            
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