The Global Hydrology Resource Center (GHRC) of the National Aeronautics and Space Administration provides data ingest, archive, and distribution services for the Global Hydrology and Climate Center (GHCC). Eight categories of online data are available to download using FTP. These include MSFC SSM/I Brightness Temperature, MSFC SSM/I Daily Gridded Products, and MSU Daily/Monthly Anomalies/Annual Cycle Temperatures-Limb90. The entire database can be viewed through HyDRO, the Hydrologic Data search, Retrieval, and Order system. Note that some data is restricted to Earth Observing System (EOS) affiliated investigators.