BELD3_A, BELD3_B, and BELD3_TOT files are I/O API netCDF files that contain gridded BELD3 data. The BELD3 data comprise 230 land use types. Because the I/O API limit on the number of variables in one netCDF file is 120, the gridded BELD3 data is broken up into two files (BELD_A and BELD_B). The BELD_TOT file contains additional information on the BELD3 data for the same grid as the BELD3_A and BELD3_B files. For a list of the BELD3 land use types, look in the B3XRF (Section 8.9.1.2, “B3XRF: BELD3 to BELD2 cross-reference file”) or B3FAC (Section 8.9.1.1, “B3FAC: BEIS3 emissions factors file”) file. The BELD3_TOT file contains the following variable and description: