FNMOC is behind in providing the SSMIS data used in IMERG. Therefore, the Early and possibly Late IMERG products will contain less satellite estimates and be of somewhat lesser quality.
Due to continuing, intermittent anomalies in the F17 SSMIS 37v channel, starting from April 13, 2016 (Orbit # 48713 : 18:29:36) and forward all 1C F17 products will flag the 37V channel as bad data and the Brightness Temperatures will be missing.
We apologize for any inconvenience or problems that this may cause and appreciate your understanding and patience.
Please let us know if you have any questions or concerns.
There continues to be intermittent anomalies in the F17 37v channel. The science team is in the process of making a decision on how to proceed forward with the F17 SSMIS data.
PPS will be halting L1C forward production of the F17 data until a decision is reached. Please note that this information pertains only to the PPS Standard Research products. Additional information will be sent for NRT (Near realtime) as appropriate.
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.
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.
A video describing how the GPM constellation turns observed radiances and reflectivities of global precipitation into data products.
For more information visit http://www.nasa.gov/content/goddard/g...
In a data-processing room at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, racks of high-powered computers are making a set of maps. They're not the familiar satellite map of farms, forests and cities. Instead, the maps will show what's in the atmosphere above the ground -- falling rain and snow.