The GMAO Research Site
The Global Modeling and Assimilation Office (GMAO) supports NASA's Earth Science mission. Activities in Earth System modeling and data assimilation aim to maximize the impact of satellite observations on analyses and predictions of the atmosphere, ocean, land and cryosphere.
Satellite & in-situ observations of the Sea-Surface Temperature (SST) show high variability, including a diurnal cycle and very thin, cool skin layer in contact with the atmosphere. The GEOS-5 Atmospheric Data Assimilation (ADAS) has been modified to incorporate these effects and also to assimilate Advanced Very High Resolution Radiometer (AVHRR) brightness temperatures to obtain realistic estimates of the skin SST.