Global Land Cover Datasets
Fractional Inundation
This page provides access to and describes the GISS dataset "Global Distribution of Inundated Areal Fraction of 1°×° Cells". In combination with the Wetland Ecosystem dataset, it may be used to calculate wetland areas.
Available Information
Items which you may download here are:
- Dataset (20 kb, gzipped ASCII)
- Sample GIF image
- Sample Postscript image (32 kb, gzipped ASCII)
Explanation of Arrays
The contents of INFO1, INFO2, and INFO3 are:
FRACTIONAL INUNDATION DIMENSION = 360 X 180 SCALE = 100 OCEAN = -9999 UNDEF = 99999 MIN = 100 MAX = 10000 NUMREC = 6483 (NUMBER OF RECORDS IN DATA FILE)
The possible values of the elements in IARRAY range from 100 to 10000. The value is the percent area of the cell which is inundated, multiplied by 100.
References
- Matthews, E., and I. Fung 1987. Methane emission from natural wetlands: Global distribution, area, and environmental characteristics of sources. Global Biogeochem. Cycles 1, 61-86.
- Matthews, E. 1989. Global Data Bases on Distribution, Characteristics and Methane Emission of Natural Wetlands: Documentation of Archived Data Tape. NASA TM-4153. National Aeronautics and Space Administration. Washington, D.C..
