Featured Articles Archive

  • GPM "Signs of Spring" Photo Contest Winners
    The Global Precipitation Measurement mission is happy to announce the top winners of the "Signs of Spring" photo competition. Thank you to everyone who submitted their best pictures of spring precipitation. From March 30th through April 27th, 2015, over 700 photos were submitted via Flickr and Instagram. We loved all of your entries and thoroughly appreciate your participation. We'll be sending the winning submitters GPM posters, lithographs, pins, and NASA and GPM stickers. Stay tuned and follow GPM for information about future events and contests. Learn More About GPM
  • Engaging Citizen Scientists With GPM
    GPM has partnered with the Global Learning and Observations to Benefit the Environment (GLOBE) Program to turn primary and secondary schools into citizen scientist labs. The GLOBE Program is a worldwide hands-on program that supports and connects primary and secondary school teachers and students with scientists. The goal of the GPM-GLOBE campaign, which occurred from February to mid-April, was to teach students how scientists use ground measurements to validate satellite precipitation data. Students learned how to make observations using a rain gauge, analyze the data for trends, and compare...
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    In 1997 when the Tropical Rainfall Measuring Mission, or TRMM, was launched, its mission was scheduled to last just a few years. Now, 17 years later, the TRMM mission has come to an end. NASA and the Japan Aerospace Exploration Agency (JAXA) stopped TRMM’s science operations and data collection on April 8 after the spacecraft depleted its fuel reserves. TRMM observed rainfall rates over the tropics and subtropics, where two-thirds of the world’s rainfall occurs. TRMM carried the first precipitation radar flown in space, which returned data that were made into 3-D imagery, enabling...
  • GPM's Worldwide Tour of Global Precipitation
    Rain, snow, hail, ice, and every mix in between make up the precipitation that touches everyone on our planet. But precipitation doesn't fall equally in all places around the world, as seen in NASA's new animation that captures every shower, snowstorm and tropical cyclone over a six-day period in August 2014. The time lapse was created from data captured by the Global Precipitation Measurement (GPM) satellite mission, now just over a year old, which scientists are using to better understand freshwater resources, natural disasters, crop health and more.
  • gpm-signs-of-spring-photo-contest
    As GPM watches spring weather from above, we want to see what spring looks like to you! Get out your cameras and show us the signs of spring in your area - from April showers to dew-drops on flowers., Sshow us how precipitation influences spring in your area. Post your coolest photos of the signs of spring, and we’ll choose the best ones to post on the NASA Precipitation Measurement Missions websites.
  • GPM's First Global Rainfall and Snowfall Map
    The Global Precipitation Measurement mission has produced its first global map of rainfall and snowfall. Like a lead violin tuning an orchestra, the GPM Core Observatory – launched one year ago on Feb. 27, 2014, as a collaboration between NASA and the Japan Aerospace Exploration Agency – acts as the standard to unify precipitation measurements from a network of 12 satellites. The result is NASA's Integrated Multi-satellite Retrievals for GPM data product, called IMERG, which combines all of these data from 12 satellites into a single, seamless map. The map covers more of the globe...
  • The Global Precipitation Measurement (GPM) Core Observatory captured a 3-D image of a winter storm on Feb. 17, 2015, that left 6 to 12 inches of snow over much of Kentucky, southwestern West Virginia and northwestern North Carolina. The shades of blue indicate rates of snowfall, with more intense snowfall shown in darker blue. Intense rainfall is shown in red. The imagery shows great variation in precipitation types over the southeastern United States. 
  • Signs of Spring Spring Weather What is spring to you?  Spring around the world March 20 - launch of contest
    At 5:05 p.m. EST Monday, Jan. 26, 2015, the Global Precipitation Measurement mission's Core Observatory flew over the Nor'easter that dumped snow on New England. This satellite image shows the rate of rainfall, with low amounts in green and high in red, and snowfall, in blue to purple. The center of the storm, shown in 3-D, was offshore with far reaching bands of snowfall. More intense snow rates are shown in darker blue, which can be seen on the northern edge of the storm. Visible in the 3-D image of the center of the storm are the snowy tops of the clouds in blue and underneath where it...