Department of Geography and Geoinformation Science, George Mason University, Fairfax, VA, USA

Emeritus Meteorologist, Climate and Radiation Branch, Laboratory for Atmospheres Goddard Space Flight Center, Greenbelt, MD, USA

Pacific Northwest National Laboratory, Richland, WA, USA

SAIC/General Sciences Operation, Beltsville, MD, USA

Department of Geography and Geoinformation Science, George Mason University, Fairfax, VA, USA

Department of Geosciences, University of Nebraska, Lincoln, NE, USA