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Remote sensing of snow, ice, and frozen ground; physical and mechanical properties of snow; snow cover and glacier mass/extent as indicators of climate change.
Member, American Geophysical Union
Member, International Glaciological Society
Member, International Association of Hydrological Sciences (IAHS)
International Commission on Snow and Ice (ICSI) representative, International Association of Hydrological Sciences (IAHS)
Chairman, ICSI Snow and Climate Working Group
Armstrong, R. L. 2010. The Glaciers of the Hindu Kush-Himalayan Region. Kathmandu, Nepal: International Centre for Integrated Mountain Development.
Elder, K., D. Cline, G. E. Liston, and R. Armstrong. 2009. NASA Cold Land Processes Experiment (CLPX 2002/03): Field Measurements of Snowpack Properties and Soil Moisture. Journal of Hydrometeorology 10(1): 320-329, doi:10.1175/2008JHM877.1.
Savoie, M. H., R. L. Armstrong, M. J. Brodzik, J. R. Wang. 2009. Atmospheric corrections for improved satellite passive microwave snow cover retrievals over the Tibet Plateau. Remote Sensing of the Environment 113(12): 2661-2669, doi:10.1016/j.rse.2009.08.006.
Armstrong, R. L., and E. Brun, eds. 2008. Snow and Climate: Physical Processes, Surface Energy Exchange and Modeling. Cambridge: Cambridge University Press.
Barry, R. G., R. Armstrong, T. Callaghan, J. Cherry, S. Gearheard, A. Nolin, D. Russell, and C. Zaeckler. 2007. Chapter 4: Snow. In Global outlook for ice and snow, ed. United Nations Environment Programme, 39-62. Hertfordshire, England: Earthprint.
Beedle, M. J., M. Dyurgerov, W. Tangborn, S. J. S. Khalsa, C. Helm, B. Raup, R. Armstrong, and R. G. Barry. 2007. Improving estimation of glacier volume change: a GLIMS case study of Bering Glacier System, Alaska. The Cryosphere Discussion 2(1): 33-51.
Raup, B., A. Racoviteanu, S. J. S. Khalsa, C. Helm, R. Armstrong, and Y. Arnaud. 2007. The GLIMS geospatial glacier database: A new tool for studying glacier change. Global and Planetary Change 56(1-2): 101-110, doi:10.1016/j.gloplacha.2006.07.018.
Yang, D., Y. Zhao, R. Armstrong, D. Robinson, and M. J. Brodzik. 2008. Streamflow response to seasonal snow cover mass changes over large Siberian watersheds. Journal of Geophysical Research 112, F02S22, doi:10.1029/2006JF000518.
Tedesco, M., E. J. Kim, D. Cline, T. Graf, T. Koike, R. Armstrong, M. J. Brodzik, and J. Hardy. 2006. Comparison of local scale measured and modeled brightness temperatures and snow parameters from the CLPX 2003 by means of a dense medium radiative transfer theory model. Hydrological Processes 20(4): 657-672, doi:10.1002/hyp.6129.
Chang, A. T. C., R. E. J. Kelly, E. G. Josberger, R. L. Armstrong, J. L. Foster, and N. M. Mognard. 2005. Analysis of ground-measured and passive-microwave-derived snow depth variations in midwinter across the northern Great Plains. Journal of Hydrometeorology 6(1): 20-33, doi:10.1175/JHM-405.1.
Zhang, T., R. G. Barry, and R. L. Armstrong. 2004. Application of satellite remote sensing techniques to frozen ground studies. Polar Geography 28(3):163-196.
Oelke, C., T. Zhang, M. C. Serreze and R. L. Armstrong, 2003. Regional-scale modeling of soil freeze/thaw over the Arctic drainage basin. Journal of Geophysical Research 108(D10): 4,314-4,331, doi:10.1029/2002JD002722.
Zhang, T., R. L. Armstrong, and J. Smith. 2003. Investigation of the near-surface soil freeze-thaw cycle in the contiguous United States: Algorithm development and validation. Journal of Geophysical Research 108(D22): 8860-8874, doi:10.1029/2003JD003530.
Armstrong, R. L., and M. J. Brodzik. 2002. Hemispheric-scale comparison and evaluation of passive microwave snow algorithms. Annals of Glaciology 34: 38-44, doi:10.3189/172756402781817428.
Frei, A., R. L. Armstrong, M. P. Clark, and M. Serreze. 2002. Catskill Mountains water resources: vulnerability, hydroclimatology and climate change sensitivity. Annals of the Association of American Geographers 92(2): 203-224.
Armstrong, R. L., and M. J. Brodzik. 2001. Recent Northern Hemisphere snow extent: a comparison of data derived from visible and microwave sensors. Geophysical Research Letters 28 (19): 3673-3676.
Tait, A. B., D. K. Hall, J. L. Foster, and R. L. Armstrong. 2000. Utilizing multiple data sets for snow-cover mapping. Remote Sensing of the Environment 72(1): 111-126.