The Workshop on Intercomparison of Remote Sensing Algorithms in Hydrology (HW 7), held August 16, 1991, in Vienna, Austria, was sponsored by the International Committee on Remote Sensing and Data Transmission for IAHS. Two half-day sessions were included that covered the topics of snow cover and soil moisture. The workshop was well attended with over 100 participants, many of whom were from the United States. Four of the thirteen presentations were made by U.S. investigators, and the soil moisture convener was T. Jackson from Beltsville, Md.