Brown, S., L. R. Iverson, and A. Prasad. 2001. Geographical Distribution of Biomass Carbon in Tropical Southeast Asian Forests: A Database. ORNL/CDIAC-119, NDP-068. Carbon Dioxide Information Analysis Center, U.S. Department of Energy, Oak Ridge National Laboratory, Oak Ridge, Tennessee, U.S.A.

Table 5. Format and description of variables for the composite ASCII data files in this numeric data package (se_asia.dat and se_asiax.dat) 

Start    End      Variable
column   column   name       Variable description

1        7        gid        Unique grid-cell identification number. Values range from 1, for the
                             lower-left-most grid cell, to to 4,177,584 (in file se_asia.dat) or
                             100,198 (in file se_asiax.dat), for the upper-right-most grid cell
9        16       long       Longitude (decimal degrees) of the centerpoint of each 3.75-km (in
                             file se_asia.dat) or 0.25-degree (in file se_asiax.dat) grid cell
18       25       lat        Latitude (decimal degrees) of the centerpoint of each 3.75-km (in
                             file se_asia.dat) or 0.25-degree (in file se_asiax.dat) grid cell
27       31       ac         Actual biomass carbon density in Mg/ha
33       37       pc         Potential biomass carbon density in Mg/ha
39       43       cntry      Country code
45       49       climi      Weck's Climatic Index code
51       55       efz        Ecofloristic zone code
57       61       elev       Mean elevation code
63       67       forest     Forest or non-forest code
69       73       pop        Population density code
75       79       precip     Mean annual precipitation code
81       85       slope      Slope code
87       91       soilt      Soil texture code
93       97       veg        Vegetation code