To improve the understanding of coastal uplands and wetlands, and their linkages with the distribution, abundance, and health of living marine resources. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, NOAA, cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. Columbia River Estuary Land Cover 1989 and Columbia River Estuary Land Cover Change 1989-1992. Conversion and integration with vector files indicates that all positions are consistent with earth coordinates covering the same area.
Attribute files appear to be logically consistent.
Examining the change matrix for logical fallacies, we find, for example, that a very small number of pixels changed from developed land to any other category. The classification scheme comprehensively includes all anticipated land covers, and all pixels have been classified. The C-CAP Implementation Manual discusses the interagency effort to develop the land cover classification scheme and defines all categories. The scene was acquired Georectified to UTM Zone 10 coordinates and was terrain corrected. The raw imagery was resampled at 50 meters.