Sometimes government tools can be put to good use, at least theoretically.
http://www.spacedaily.com/reports/NASA_Satellite_Technology_Helps_Fight_Invasive_Plant_Species.html
"NASA Satellite Technology Helps Fight Invasive Plant Species
by Staff Writers
Greenbelt MD (SPX) Feb 15, 2006
Products based on NASA Earth observations and a new Internet-based decision tool are providing information to help land and water managers combat tamarisk (saltcedar), an invasive plant species damaging precious water supplies in the western United States.
This decision tool, called the Invasive Species Forecasting System (ISFS), is being used at the U.S. Geological Survey (USGS) National Institute of Invasive Species Science in Fort Collins, Colo. It is the result of combining USGS science and NASA Earth observations, software engineering and high-performance computing expertise.
"The ISFS combines NASA satellite data with tens of thousands of field sampling measurements, which are then used to analyze past and present distributions of non-native plants and predict their future growth patterns," said Tom Stohlgren, director of the USGS National Institute of Invasive Science Species. Land managers and others can use it to generate color-coded maps to help predict and manage the spread of troublesome invasive species.
The ISFS uses observations and science data products from NASA's Terra, Aqua and Earth Observing-1 satellites and the USGS-operated Landsat satellites, together with field data from government and non-government contributors. The satellites observe and measure sunlight reflected by plants and their environments. The satellites lock in on unique aspects of the reflected light to determine saltcedar's locations and habitats vulnerable to invasion."