Abstract
 Geodatabase for Evaluating Information from Imagery and Other Data Track: Modeling Author(s): David Hansen, Barbara Simpson, Chris Curlis A common tool in the evaluation and use of remote-sensing data is the use of polygons for the comparison of spectral characteristics from satellite imagery. A geodatabase provides a useful structure and topology tools for evaluating polygons derived from spectral imagery with other data such as census tracts, administrative boundaries, water areas, or field borders. This office is using the geodatabase structure and associated tools for assessing spectral variations in the dynamic environment of the Central Valley of California. Geodatabases with ArcMap provide the basis for evaluating image information captured with image processing software. The geodatabase provides the flexibility to rapidly address a variety of issues. This includes identifying land-cover changes near facilities or on reclamation administered lands, the status of lands involved in fallowing programs, and baseline information for water conservation programs. David Hansen U.S. Bureau of Reclamation MPGIS 2800 Cottage Way Sacramento , CA 95825-1898 US Phone: 916-978-5268 Fax: 916-978-5290 E-mail: dhansen@mp.usbr.gov Barbara Simpson MPGIS U.S. Bureau of Reclamation 2800 Cottage Way Sacramento , CA 95825 US Phone: 916-978-5031 E-mail: bsimpson@mp.usbr.gov Chris Curlis MPGIS U.S. Bureau of Reclamation 2800 Cottage Way Sacramento , CA 95825 US Phone: 916-978-5030 E-mail: ccurlis@mp.usbr.gov |
|||||
