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Associate Research Scientist
Lamont-Doherty Earth Observatory
Marine Geology and Geophysics
108C Oceanography
61 Route 9 W - PO Box 1000
United States


I am a cryospheric scientist and modeler focused on interactions between ice and climate. I incorporate remote sensing and in situ measurements with global climate models (e.g. NASA GISS GCM) and regional climate models (e.g. MAR RCM) and ice dynamics models (e.g. ISSM) to study ice-climate interactions, particularly interactions between climate and polar ice sheets, with the goal of understanding the future impact of climate change on sea level rise.

List of degrees from highest to lowest:
Graduate Center of the City University of New York
Columbia University
Columbia University
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Lamont Projects:

Selected Publications:

Simulated Greenland Surface Mass Balance in the GISS ModelE2 GCM: Role of the Ice Sheet Surface Alexander, P. M.; LeGrande, A. N.; Fischer, E.; Tedesco, M.; Fettweis, X.; Nowicki, S. M. J.; Schmidt, G. A. Journal of Geophysical Research: Earth Surface (2019)
Evaluating a regional climate model simulation of Greenland ice sheet snow and firn density for improved surface mass balance estimates Alexander, P. M.; Tedesco, M.; Koenig, L.; Fettweis, X. Geophysical Research Letters (2019)
Mapping Ice Algal Blooms in Southwest Greenland from Space Wang, Shujie; Tedesco, Marco; Xu, Min; Alexander, Patrick M. Geophysical Research Letters (2018)
The darkening of the Greenland ice sheet: trends, drivers, and projections (1981–2100) Tedesco, Marco; Doherty, Sarah; Fettweis, Xavier; Alexander, Patrick; Jeyaratnam, Jeyavinoth; Stroeve, Julienne The Cryosphere (2016)
Design and deployment of a portable membrane equilibrator for sampling aqueous dissolved gases Loose, B.; Stute, M.; Alexander, P.; Smethie, W. M. Water Resources Research Apr 21 Volume: 45 p.: - (2009) Doi 10.1029/2008wr006969