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Acronyms
TermsConfluence - Intersection of two rivers Merged Dataset - Merging field data with image layer(s) (remote sensed, GIS) Model Array - Subset of Merged Dataset, input into modeling algorithm Augmented Dataset - Adding a calculated/derived field to merged dataset. Kriging - Geostatistical method for generating residuals for remote sensed points for which you don't have field data Nugget - Variogram attribute, must be a non-zero value. The difference/variability, between point values taken within a 20 x 50 meter area. Range - Variogram attribute, Kriging attribute, distance it took to get to the sill Reach - Length of a river containing no intersections Sill - Variogram attribute, the plateau, largest value of variability. Invasive Species - A non-native species whose introduction causes or is likely to cause harm to the economy, environment or human health. GeoStatistics - Applies the theories of stochastic processes and statistical inference to geographic phenomena. Computer Cluster - A collection of 2 or more computers that appear as a single computer to the user community. Computer Grids - A large number of computers arranged as clusters, embedded in a distributed telecommunications infrastructure. RAID - Basic idea is to combine multiple small, inexpensive disk drives into an array of disk drives which yields performance exceeding that of a Single Large Expensive Drive (SLED). Additionally, this array of drives appears to the computer as a single logical storage unit or drive. |
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Last Modified: August 19, 2003
Responsible NASA official: Dr. John L. Schnase
Maintained by: Nathan Pollack [isfs@ssaihq.com]
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