Ecoregions
Citation Information
Title: Ecoregions
Source: Olsen et. al.
Date: 2001
Citation: Olson, D. M., Dinerstein, E., Wikramanayake, E. D., Burgess, N. D., Powell, G. V. N., Underwood, E. C., D’Amico, J. A., Itoua, I., Strand, H. E., Morrison, J. C., Loucks, C. J., Allnutt, T. F., Ricketts, T. H., Kura, Y., Lamoreux, J. F., Wettengel, W. W., Hedao, P., Kassem, K. R. 2001. Terrestrial ecoregions of the world: a new map of life on Earth. Bioscience 51(11):933-938. [online] URL: http://worldwildlife.org/publications/terrestrial-ecoregions-of-the-world
Description
Terrestrial ecoregions of the world divided into 867 classes defined by climate, geology, and evolutionary history. Native data is polygon vector format projected in Geographic Coordinate System WGS 1984
Processing Procedure
1. In ArcMap 10.0, convert native data to 30 arc second resolution grid.
2. Use zonal statistics to calculate mean values within each GLU.
Data Coverage
Data is coded by the number of cells covered by the native data (1), data extrapolation (2), and not covered by either (3).
DGG Cell Coverage Report | |||||
Coverage Codes | Frequency | Percent | Valid Percent | Cumulative Percent | |
Valid | 1 | 1394363 | 96.5 | 96.5 | 96.5 |
3 | 50601 | 3.5 | 3.5 | 100.0 | |
Total | 1444964 | 100.0 | 100.0 |