|The Western Geographic Science Center
conducts research to help communities make decisions about the interaction between people and their environment. We conduct geographic research on the environmental and societal consequences of a changing landscape.
Our projects analyze human / environmental interactions spatially and temporally. Our work is collaborative, involving many partners and linking many different natural science and social science disciplines. Our work is concentrated in the 9 states of the USGS Western Region and is conducted on local and regional scales.
Find out more about our science by following the links on the left.
The Global Food Security-Support Analysis Data at 30 m (GFSAD30) Mendenhall Fellowhip Announcment
Monitoring global croplands (GCs) is imperative for ensuring sustainable water and food security to the people of the world in the 21st Century. In order to better understand, model, map, and monitor agricultural crop productivity and its inter-relationships with water productivity , increasingly more sophisticated remote sensing data will be required. For the first time ever, ~64,000 hyperspectral Hyperion images are available for free over the 2000-present period, covering an excellent sampling of global croplands. Each of the images covers an area 185 km length by 7.5 km width and 242 bands (each 10 nm wide) from 400 to 2500 nanometers. About 40% (~25,000) of these images capture the World’s ~1.5 billion hectares of cropland areas. In addition, other sources of hyperspectral images include AVIRIS, HyMAP, and a growing potential for Unmanned Aerial Vehicle (UAV) based sensors. Our overarching goal is to use this one-of-a-kind goldmine of data to produce the most comprehensive and consistent global hyperspectral imaging spectral-library of agricultural crops for the World’s leading 8 crops which occupy about 70% of the ~1.5 billion hectares of global croplands.