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 (NTSpace).
The GPM 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, CO.
Wednesday, February 22, 2012
On January 30th and 31st, 2012, the GPM Microwave Imager (GMI) underwent its Pre-Shipment Review at Ball Aerospace in Boulder, Colorado. The GMI has successfully completed acoustic testing, vibration testing, and electromagnetic and thermal vacuum testing at the Ball facility. The instrument will be delivered to Goddard Space Flight Center on February 29th and will be integrated onto the GPM Core Observatory satellite over the coming year.
Wednesday, February 8, 2012
Japanese scientists and engineers have completed construction on a new instrument designed to take 3-D measurements of the shapes, sizes and other physical characteristics of both raindrops and snowflakes. The instrument will be shipped from Japan to NASA's Goddard Space Flight Center, Greenbelt, Md., to be integrated into an upcoming NASA Earth science satellite.
Tuesday, January 17, 2012
The GPM Cold-season Precipitation Experiment (GCPEx) to measure falling snow is currently underway in Ontario, Canada. The field campaign, which runs from January 17 to February 29, 2012, is designed to improve satellite estimates of falling snow and test ground validation capabilities for GPM.
Wednesday, December 14, 2011
GPM's two solar array wings that extend to the right (+Y) and left (-Y) of the spacecraft are currently undergoing assembly and testing at Goddard Space Flight Center, Greenbelt, Md. The solar arrays provide all the electrical energy for the satellite, and must survive flying in Earth's thin upper atmosphere at an altitude of 407 km (253 miles), where they will be subjected to small drag forces and exposure to corrosive atomic oxygen.
Tuesday, November 29, 2011
A three day meeting, co-sponsored by NESDIS/STAR and NWS/OHD, is being held at the Earth System Science Interdisciplinary Center (ESSIC) at the University of Maryland from November 29th through December 1st. This meeting follows up on the highly successful first workshop from August 2010 and focuses on user applications of GPM-era data and products. The meeting attendees, including government researchers, academics, and representatives from commercial industry, will...
Over 150 scientists from 10 different countries are meeting in Denver, Colorado, to discuss rain and snow and how to measure them from space. Only once a year members of the Precipitation Measurement Missions (PMM) Science Team come together to discuss the science surrounding both the current Tropical Rainfall Measuring Mission (TRMM) and the upcoming Global Precipitation Measurement (GPM) mission that will launch in 2014.
GPM and CloudSat ground validation researchers are currently meeting at the University of Helsinki to discuss strategies for analyzing airborne and ground-based datasets from the Light Precipitation Validation Experiment (LPVEx) field campaign. This data analysis will help improve satellite-based precipitation retrievals in high latitude light rain and snowfall events.
Monday, September 26, 2011
A beta-version of the GPM Combined Algorithm code was released this week for the purpose of internal testing by team members. The GPM Combined Algorithm is developed to integrate sensor information from the two instruments onboard the GPM Core Observatory: the Dual-frequency Precipitation Radar (DPR) and the GPM Microwave Imager (GMI). The sophisticated software program combines raw data from each of the instruments to provide more comprehensive estimates of precipitation rate, water content...