Dear GrADS-users, Anyone have any script that calculates only Air Density (kg/m3) ?? for a point given (i,j) and for any length of time series... cheers, Leopoldo Álvarez -- Leopoldo Álvarez Director de Explotación Técnica. Instituto de Estudios Meteorológicos y Oceanográficos S.L. (IDEMOC). -- www.idemoc.com