Personal tools
You are here: GES DISC Home Precipitation

Precipitation: OVERVIEW

warn_icon.gif IMPORTANT MESSAGE Jul 25, 2014    Nearing the end of the TRMM Era   

From PPS: Since December 1997, TRMM and the instruments it carries have provided valuable information to researchers, the applications community, and the public.  On July 8, 2014, pressure readings from the fuel tank indicated that TRMM is at the end of its fuel.  As a result, NASA has ceased station keeping maneuvers and TRMM has begun its drift downward from its operating altitude of 402 km.

 A small amount of fuel has been retained to conduct debris avoidance maneuvers to ensure the satellite remains safe during the drift down.

 TRMM observations will continue as the spacecraft descends to 335 km, at which time it will be shutdown prior to re-entry.

This date is nominally estimated to be February 2016, but may change depending on solar activity.  While TMI and LIS will continue operating during the entire drift down period, the TMI data will be affected. TMI incidence angle will be changing as will the field of view. Users should adjust their use of TMI data to reflect these changing values. However, we expect useful data to continue especially for non-climate research.

 JAXA has indicated that they may soon stop distribution of the radar data since useful science data is only possible within narrow altitude ranges near 400 and 350 km. When TRMM reaches 350 km (its original altitude), radar data may resume for a short period.

Welcome to the Precipitation Data and Information Services Center (PDISC). Here are some links to help you get started:

Sign Up for the GES DISC Precipitation Mailing List

Sign up for the GES DISC Precipitation Portal listserv to receive announcements on the latest data information, tools and services that become available, data announcements from PPS and more! Contact the GES DISC User Services to be added to the list.

Global Precipitation Measurement (GPM)

GPM LogoAn international satellite mission to be launched by NASA and JAXA in 2014 that will set new standards for precipitation measurements worldwide using a network of satellites united by the GPM Core Observatory.  For more information on the mission visit the Precipitation Measurement Missions informational web site.

The GES DISC will archive the data and provide the same expansive services currently offered to the user community for the TRMM data products. More information will be available as the data gets closer to the launch of the mission.

 

Search for Precipitation Data

mirador_thumb.jpg TRMM data can be located using our new fast and efficient search interface Mirador.

 

Explore Precipitation Data with Giovanni

Giovanni IconGiovanni TOVAS, a member of the Giovanni (GES-DISC DAAC On-line Visualization and Analysis System) family,provides users with an easy-to-use, Web-based interface for the visualization and analysis of Earth Science data without having to download the data first.

PDISC Guide for New Users

For users new to the PDISC, we offer a getting started guide.

Precipitation Data Services at the DISC

  • Facilitate data access, information processing to support precipitation research and decision making
  • Nurture cross disciplinary precipitation related research, such as energy and water cycle, aerosol-precipitation interactions

The data holdings at the PDISC consist of remote sensing, in-situ and forecast (to be added in the future) precipitation and ancillary data. The PDISC also provides access to near-real-time and historical precipitation data. The TRMM Online Visualization and Analysis System TOVAS provides a fast and easy way to access the most popular products. While you're here, check out:

 


Latest News

Image of the GPM satellite, showing the locations of the Microwave Imager and the Dual Frequency Precipitation Radar.
Jul 29, 2014 - Global Precipitation Mission (GPM) Level-1 GPM Microwave Imager (GMI) and Partner Radiometer Data released through NASA GES DISC

Common inter-calibrated microwave brightness temperature (Tc) products to ensure consistency among global precipitation retrieval & climate studies

+ Read More…
MODIS-Terra images of seasonal flooding in Malawi. Left: 12/26/2006. Right: 1/11/2007. The Shire River, subject of a 2014 paper that used Giovanni, flows from Lake Malawi into the Zambezi River through wetlands, including the “Elephant Marsh".
Jul 28, 2014 - Giovanni publications for the first half of 2014

103 publications tallied in peer-reviewed journals or scientific books

+ Read More…
Precipitation time series for the Bosnia-Herzegovina flood event in mid-May 2014.
Jun 27, 2014 - The June 2014 issue of The Giovanni News is online

Articles on Giovanni 4.8 release, Bosnia-Herzegovina floods, Czech Republic vegetation

+ Read More…
On average, the western Florida Panhandle receives about 100 mm of rain in April.
Jun 13, 2014 - Record-shattering rain inundates Pensacola, Florida in late April 2014

In two days, the area received 5-6 times the normal monthly rainfall for April

+ Read More…
This Giovanni image shows particulate inorganic carbon concentrations during the Lake Ontario whiting event in August 2013.
Jun 05, 2014 - Article in Earthzine highlights use of Giovanni for public health research

Data are used for research on infectious disease, air quality, and water quality

+ Read More…

+Precipitation News Archive  RSS News Feed

Document Actions
NASA Logo - nasa.gov
NASA Privacy Policy and Important Notices
Last updated: Mar 26, 2013 04:40 PM ET