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Engineers working on the GPM Core Observatory
By Ellen Gray , NASA Goddard Space Flight Center Original www.nasa.gov Article (published 10/17/12) NASA's Global Precipitation Measurement (GPM) Core Observatory satellite went through its first complete comprehensive performance test (CPT), beginning on Oct. 4, 2012 at NASA's Goddard Space Flight Center in Greenbelt, Md. The testing ran twenty-four hours, seven days a week and lasted ten days as the entire spacecraft was put through its paces. "This is the first time we've gotten to see the observatory all put together, running the way it's supposed to be running in flight," said CPT Test...
Map of tracking hurricane Irene
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Water droplets
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A misty mountaintop in The Smoky Mountains
By Lisa-Natalie Anjozian , NASA Goddard Space Flight Center Original www.nasa.gov Press Release (published 4/24/12) If you walk into a cloud at the top of a mountain with a cup to slake your thirst, it might take a while for your cup to fill. The tiny, barely-there droplets are difficult to see, and for scientists they, along with rain and snow, are among the hardest variables to measure in Earth Science, says Ana Barros, professor of engineering at Duke University. As part of the Science Team for NASA's Precipitation Measurement Missions (PMM) that measure rainfall from space, Barros and her...
NASA and JAXA officials at the DPR signing event
By Ellen Gray, NASA Goddard Space Flight Center Original www.nasa.gov Press Release (published 4/3/12) On March 30, the Japan Aerospace Exploration Agency (JAXA) officially handed off a new satellite instrument to NASA at Goddard Space Flight Center, Greenbelt, Md. The Dual-frequency Precipitation Radar (DPR) was designed and built by JAXA and Japan's National Institute of Information and Communications Technology (NICT). JAXA DPR Project Manager Masahiro Kojima (seated left) formally signed over the DPR to GPM Project Manager Art Azarbarzin (seated right). Behind from left to right: Minoru...
Document Description

This excerpt from the March-April 2012 edition of The Earth Observer provides a summary of the activities at the PMM Science Team Meeting which took place from November 7 - 10 2011. The meeting brought together over 150 participants from 10 countries, and included representatives from NASA, JAXA, the National Oceanic and Atmospheric Administration (NOAA), universities, industry, and other international partner agencies.

DPR arriving on a truck at NASA Goddard
By Aries Keck, NASA Goddard Space Flight Center Original www.nasa.gov Press Release (published 3/1/12) The Dual-frequency Precipitation Radar (DPR) built by the Japan Aerospace Exploration Agency (JAXA) for the Global Precipitation Measurement (GPM) mission's Core Observatory arrived on Friday, March 16 and was unloaded today at NASA's Goddard Space Flight Center, Greenbelt, Md. Comprised of two radars, the DPR is one of two instruments that will fly on the Core Observatory scheduled for launch in February 2014. Engineers from the Japan Aerospace Exploration Agency (JAXA) and NASA Goddard...
Scientists stand around the GMI which just arrived at NASA Goddard
By Rob Gutro, NASA Goddard Space Flight Center Original www.nasa.gov Press Release (published 3/1/12) The Global Precipitation Measurement Microwave Imager (GMI) instrument has arrived at NASA's Goddard Space Flight Center in Greenbelt, Md. for integration into NASA's upcoming Earth science spacecraft. The instrument was built at the Ball Aerospace and Technologies Corp., Boulder, Colo. The GPM Microwave Imager instrument being placed in the acoustic chamber at NASA's Goddard Space Flight Center on March 1, 2012. Credit: NASA / Ball Aerospace Engineers at NASA Goddard will integrate both the...
Document Description

This excerpt from the NASA Earth Observer publication provides and in-depth summary of the Midlatitude Continental Convective Clouds Experiment (MC3E), which took place from April 22nd - June 6th 2011 in central Oklahoma. The overarching goals of the field effort were to provide a complete three-dimensional characterization of precipitation microphysics in the context of improving the reliability of GPM precipitation retrievals over land, and to advance understanding of the primary physical components that form the basis for models that simulate convection and clouds.

GCPEx logo on falling snow background
By Ellen Gray, NASA Goddard Space Flight Center Original www.nasa.gov Press Release (published 1/12/12) Beginning Jan. 17, NASA will fly an airborne science laboratory above Canadian snowstorms to tackle a difficult challenge facing the upcoming Global Precipitation Measurement (GPM) satellite mission -- measuring snowfall from space. GPM is an international satellite mission that will set a new standard for precipitation measurements from space, providing next-generation observations of worldwide rain and snow every three hours. It is also the first mission designed to detect falling snow...