Articles

GPM flying over Earth with a data swath visualized.
Diagram of the GPM Core Observatory Carrying both a dual frequency radar instrument and a passive microwave radiometer, the Core Spacecraft serves as a calibration standard for the other members of the GPM spacecraft constellation. The Core Spacecraft was developed and tested in-house at NASA Goddard Space Flight Center. The GPM Core Observatory orbit inclination of 65 degrees is such that it enables the orbit to cut across the orbits of other microwave radiometers, sample the latitudes where nearly all precipitation occurs, and sample at different times of day. The GPM Core Observatory GMI...
GPM flying over Earth with a data swath visualized.
Malaria outbreaks after the 2010 floods in Pakistan , E. coli and colliform from raw sewage in Mississippi flood waters , and cholera spread by heavy rains in Cameroon, West Africa are among the many health hazards associated with flood disasters and torrential rains. In developing regions with limited clean water infrastructure and health resources that are stretched thin, any advanced warning can make a huge difference in the health community’s response to help people in need. Flooding in Gonaives Haiti before and after the 2004 tropical storm Jeanne Using satellite data to forecast disease...
GPM flying over Earth with a data swath visualized.
Soil moisture content is a measure of the amount of water in the soil. Knowing how much water is held in the soil is useful for many applications, including improving agricultural productivity, assessing drought and flood conditions, and even estimating groundwater supplies. NASA has teamed with the U.S. Department of Agriculture (USDA) - Foreign Agricultural Service (FAS) to develop a global soil moisture map fashioned for FAS by integrating soil moisture observations from the Earth Observing System Advanced Microwave Scanning Radiometer (AMSR-E) instrument into the USDA FAS soil moisture...
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...
GPM flying over Earth with a data swath visualized.
Researchers need accurate and timely rainfall information to better understand and model where and when severe floods, frequent landslides and devastating droughts may occur. GPM's global rainfall data will help to better prepare and respond to a wide range of natural disasters. This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11091 Landslides are one of the most pervasive hazards in the world, resulting in more fatalities and economic damage than is generally recognized. They have caused more than 11,500 fatalities in 70 countries from 2007-2010 , and in the...