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Andrew W. Ellis

Associate Professor
Andrew W. Ellis
227 Wallace Hall


·     Climate science, meteorology

·     Hydroclimatic variability and change, snow, drought, water supply

·     Synoptic climatology

I am a native of Delaware and earned Bachelor of Arts (Geography, 1991), Master of Science (Geography, 1994), and Doctor of Philosophy (Climatology, 1997) degrees from the Geography program at the University of Delaware in Newark, Delaware.  In 1997, I joined the geography faculty at Arizona State University in Tempe, Arizona where I remained until leaving for Virginia Tech in July 2011. A hydroclimate scientist, my early research work focused on snowfall variability, snow cover-atmosphere interactions, and snow melt modeling. However, I spent several years working on lower atmospheric pollution problems before returning in recent years to a research agenda focused on water-related issues. Two research areas have been the focus of my most recent work. One area centers on understanding the occurrence of drought and its improved representation for monitoring and study. The second research area focuses on assessing the sustainability of fresh water resources for populations living in arid and semi-arid climates given population growth and the uncertain hydrological impacts of climate change.

Courses Recently Taught:

·     Introduction to Earth’s Climate (GEOG 2984)

·     Dynamic Meteorology I (GEOG 3515)

·     Dynamic Meteorology II (GEOG 3516)

·     Physical Meteorology (GEOG 4524)

Recent Publications:

Ellis AW, T Greene (Under Review) Multi-scale Evidence of a Late-20th Century Change to Earlier Spring Ice-Out on Maine Lakes, USA. Climatic Change.

Marson, ML, AW Ellis (In Revision) Uniformity in the Temporal Distribution of Precipitation Through Seasonal and Annual Timeframes Across the Mid-Atlantic Region of the United States, 1950-2017. Climate Research.

Murphy KW, AW Ellis (In Press) Simulated Impacts of Past and Present Megadrought on a Modern Water Resource System. Hydrological Sciences Journal.

Marston ML, AW Ellis (2018) Extreme reversals in successive winter season precipitation anomalies across the western United States, 1895-2015. International Journal of Climatology, 38(3), 1520-1532. DOI: 10.1002/joc.5263.

Ellis AW, M Marston, D Nelson (2018) An air mass-derived cool season climatology of synoptically forced Appalachian cold-air damming. International Journal of Climatology, 38(2), 530-542. DOI: 10.1002/joc.5189.