Drew is the National Map Liaison for California, Nevada, Arizona, Hawaii, and the U.S. Territories in the Pacific.
Drew is a National Map Liaison based in San Diego, CA and serving California, Nevada, Arizona, Hawaii, and the U.S. Territories in the Pacific. He has been with USGS since 2007. Prior to that Drew worked for the State of Texas on statewide mapping data programs.
Professional Experience
The National Map geospatial products and resources, local and state spatial data resources, other federal geospatial programs and data.
Education and Certifications
Geological Sciences, B.S., New Mexico State University
Geography, M.S., Florida State University
Geography, Ph.D., University of South Carolina
Science and Products
The 3D Elevation Program—Supporting California's Economy
IntroductionCalifornia faces unprecedented challenges presented by shifting weather patterns that are defining a “new normal.” The result has been extreme weather events, prolonged drought, flooding, and debris flows. These conditions drive severe tree mortality, increase wildfire occurrence and intensity, reduce water availability, and hasten subsidence in groundwater basins. Collectively, these
Authors
Carol L. Ostergren, Drew Decker, William J. Carswell,

WaterML2 Part 3: Surface Hydrology Features (HY_Features) Conceptual Model and the Mainstems Logistical Data Model
Science and Products
- Publications
The 3D Elevation Program—Supporting California's Economy
IntroductionCalifornia faces unprecedented challenges presented by shifting weather patterns that are defining a “new normal.” The result has been extreme weather events, prolonged drought, flooding, and debris flows. These conditions drive severe tree mortality, increase wildfire occurrence and intensity, reduce water availability, and hasten subsidence in groundwater basins. Collectively, theseAuthorsCarol L. Ostergren, Drew Decker, William J. Carswell, - Multimedia
link
WaterML2 Part 3: Surface Hydrology Features (HY_Features) Conceptual Model and the Mainstems Logistical Data Model - News