Interactive program to convert longitude/latitude coordinates to EMEP grid cells and vice versa. Just type your numbers in the corresponding fields below:
Fortran library for EMEP grid interpolation and coordinate conversion from the EMEP grid to longitude/latitude including documentation: interpol.tar.gz
The freely available program Proj.4 can also be used to convert from our projection to a large range of other projections. Please use the following proj-parameters:
# earth radius is 6370/50=127.4
proj +ellps=sphere +a=127.4 +e=0 +proj=stere +lat_0=90 +lon_0=-32 +lat_ts=60 +x_0=8 +y_0=110
Text file containing EMEP 50x50km2 (polarstereographic projection) grid coordinates, geographical coordinates and area of each EMEP grid cell:
EMEPgrid.csv (ascii file(csv format))
Text file defining the fraction (in percent) of grid cells belonging to a particular country: emep50official_country_grid_fraction.txt
The file structure is the following: EMEP country codes, EMEP grid x coordinate, EMEP grid y coordinate, fraction of country within grid cell. (Last update: 26.11.2008, including the extension of the EMEP domain.)
Text file linking EMEP ISO codes to EMEP country/area codes and country/area names: country_numbers.txt