Models

GPM flying over Earth with a data swath visualized.
To augment the observations and provide additional test cases for synthetic algorithm development and satellite simulator testing, a number of modeling activities are also planned. Cloud resolving model simulate frozen precipitation events using the GSFC-Weather Research and Forecasting (WRF) will be performed, initialized and forced by appropriate NWP forecast models. The GSFC WRF has single-moment Goddard Microphysics and spectral-bin microphysics. All of the microphysical schemes have their own set of unique capabilities and assumptions, and all will be tested by the GPM groups. In turn...
GPM flying over Earth with a data swath visualized.
Visit the Land Data Assimilation Systems homepage Rain and snowfall are key components of land surface models, including the Land Data Assimilation Systems (LDAS), which integrate satellite and ground-based observational data to generate estimates of soil moisture, soil temperature, evapotranspiration and runoff. Scientists use this and other models to study surface features and how they change due to manmade and natural conditions such as urbanization and erosion. The Global LDAS (GLDAS) uses TRMM precipitation data in numerous investigations into how water and energy cycle through natural...