Rescom Radiometer data (ascii) Av files: First column contains time [hours UTC] Second column brightness temperatures at 31.7 GHz Third column brightness temperatures at 21.3 GHz Fourth column brightness temperatures at 23.8 GHz Vl files: First column: time [hours UTC] Second column: Vapour [mm] Third column: Liquid [mm] Algorithm for V- and L retrieval: CCIR linear retrieval with coefficients calculated for Northern part of the hemisphere. absolute values not to be trusted e-mail address: S.C.H.M.Jongen@ele.tue.nl