Hi- There are tools for translating files, which might be an even better solution. Looking around the Unidata NetCDF site, here is a list of tools that work with netCDF data. http://www.unidata.ucar.edu/software/netcdf/software.html This software, http://www.unidata.ucar.edu/software/netcdf/software.html#GDAL has a tool to translate arcAscii files to netCDF. I do not have this on my system and have not tried it, but it might be worth looking at. The link from the Unidata software page is out of date. It should be http://www.gdal.org/gdal_translate.html In any case, once you have the data in a netCDF file you can use yes? USE/order=x-y treecover.nc to reverse the Y coordinates Ansley On 10/21/2011 12:14 PM, Sam Rabin wrote: I need to use the AVHRR tree cover classification data available at http://glcf.umd.edu/data/treecover/data.shtml, and so I downloaded the ASCII file for each continent. I have tried all day to import them, but the best I've been able to do is a severely distorted map. The good news is that all continents seem to be distorted the same way. I'll use Africa as an example (ftp://ftp.glcf.umd.edu/glcf/Continuous_Fields_Tree_Cover/Africa/af-latlong-treecover/af-latlong-treecover.grd.gz). |