CIRES Council of Fellows>

Tingjun Zhang

Ph.D., Geophysics
Geophysical Institute, University of Alaska Fairbanks, 1993
Senior Research Scientist, National Snow and Ice Data Center/CIRES

E-mail: tzhang@nsidc.org
Office: RL-2, #220
Phone: 303-492-5236
Web: http://nsidc.org/research/bios/zhang.html

Research Interests

• Permafrost, seasonally frozen ground, snow, and ice
• Cold regions/cold seasons land surface processes
• Soil temperature and soil thermal regime
• heat and mass transfer in porous media
• numerical modeling of geophysical phenomena in cold regions
• Satellite remote sensing of the near-surface soil freeze/thaw status

Current Research

• Impacts of Soil Freeze/Thaw Dynamics on the North American Carbon Cycle
• Freeze-Thaw Cycle of Soils at Local-, Regional-, and Global-Scales
• Interactions between Frozen Ground in the Russian Arctic and Atmospheric Circulation
• Collaborative Research: Permafrost Model Comparison Study
• IPY Collaborative Research: Biogenic Heat Production in Frozen Tundra and Permafrost: Adaption to Cold and Impact on Biogeochemical Processes
• Changes in Freeze-Thaw and Permafrost Dynamics and Their Hydrological Implication over the Russian Arctic Drainage Basis
• Assessment of Recent Hydrologic Changes over the Arctic Terrestrial Drainage System

Selected Publications

• Qingbai Wu and Tingjun Zhang (2008). Recent permafrost warming on the Qinghai-Tibetan Plateau, J. Geophys. Res., (in press).
• Lijuan Ma, Tingjun Zhang, Qingxiang Li, O. W. Frauenfeld, and Dahe Qing (2008). Evaluation of ERA-40, NCEP-1, and NCEP-2 reanalysis air temperatures with ground-based measurements in China, J. Geophys. Res, (in press).
• Zhang, T., F. Nelson, and S. Gruber (2007), Introduction to Special Section: Permafrost and seasonally frozen ground under a changing climate, J. Geophys. Res., 112, F02S01, doi:10.1029/2007JF000821.
• Zhang, T., 2007: Perspectives on environmental study of response to climatic and land use and land cover change over the Qinghai-Tibetan Plateau: An introduction, Arctic, Antarctic, and Alpine Research, 39(4), 631-634.
• Oelke, C. and T. Zhang, 2007: Modeling the soil thermal regime of the Tibetan Plateau, Arctic, Antarctic, and Alpine Reseaerch, 39(4), 714-722.
• Zhang, T., 2005. Influence of the seasonal snow cover on the ground thermal regime: An overview, Reviews of Geophysics, 43, RG4002, doi:10.1029/2004RG000157.
• Zhang, T., O. W. Frauenfeld, M. C. Serreze, A. Etringer, C. Oelke, J. McCreight, R. G. Barry, D. Gilichinsky, D. Yang, H. Ye, F. Ling, and S. Chudinova, 2005: Spatial and temporal variability of active layer thickness over the Russian Arctic drainage basin, J. Geophys. Res., 110, D16101, doi:10.1029/2004JD005642.
• Zhang, T., Roger G. Barry, and Richard L. Armstrong, 2004. Application of Satellite Remote Sensing on Frozen Ground Studies, Polar Geography, 28(3), 193-196.
• Zhang, T., R. L. Armstrong, and Jeff. Smith, 2003. Investigation of the near-surface soil freeze/thaw cycle in the contiguous United States: Algorithm development and validation, J. Geophys. Res., 108(D22), 8860, doi:10.1029/2003JD003530.
• Zhang, T., Roger G. Barry, D. Gilichinsky, S. S. Bykhovets, V. A. Sorokovikov, and Jingping Ye, 2001. An amplified signal of climatic change in soil temperatures during the last century at Irkutsk, Russia, Climatic Change, 49, 1-2, 41-76.
• Zhang, T., J. A. Heginbottom, Roger G. Barry, and J. Brown, 2000. Further statistics on the distribution of permafrost and ground-ice in the Northern Hemipshere, Polar Geography, 24(2), 126-131.
• Zhang, T. and M. O. Jeffries, 2000. Modeling inter-decadal variations of lake ice thickness and sensitivity to climatic change in northernmost Alaska, Annals of Glaciology, 31, 339-347.
• Zhang, T., Roger G. Barry, K. Knowles, J. A. Heginbottom, and J. Brown, 1999. Statistics and characteristics of permafrost and ground ice distribution in the Northern Hemisphere, Polar Geography, 23(2), 147-169.