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warn_icon.gif IMPORTANT MESSAGE Apr 16, 2015    Missing data issue in 3B42RT   

IR fill-ins ceased when CPC Global 4 km Merged IR data dropped out, starting 14 April 17:00 UTC, apparently due to processing issues at NOAA.  As a result, 3B41RT has no data and 3B42RT only has data in regions where microwave data are available.

warn_icon.gif IMPORTANT MESSAGE Apr 02, 2015    Information about the end of TRMM mission   

Dear TRMM users,

The TRMM mission is unfortunately coming to an end. It was launched on November 27, 1997, and has provided the research and operational communities with unique precipitation information from space for more than 17 years.  The mission will end on approximately April 8, 2015, in preparation for re-entry during the summer. The overarching TRMM science goal was to advance our knowledge of the global energy and water cycles by observing time and space distributions of tropical rainfall, convective systems and storms, and their associated hydrometeor structure and latent heating distributions. TRMM data provided the most accurate estimate ever of tropical rainfall and lightning and its variations (from sub-daily to monthly, seasonal, annual, and interannual time scales).

It led to new insights into the structure and evolution of convective systems, including extreme events like tropical cyclones and flood producing storms. TRMM provided a benchmark climatology used to validate and improve global climate and weather forecast models and shed light on ways in which humans impact precipitation. While TRMM is coming to an end, we are fortunate to have the very successful Global Precipitation Measurement (GPM) mission beginning its second year of operations and providing valuable data with more advanced sensors and up to higher latitudes. We thank all of you who have helped to make TRMM a great success.


Scott Braun, NASA TRMM Project Scientist

Ramesh Kakar, NASA TRMM Program Scientist

Riko Oki     JAXA TRMM Program Scientist


What's Hot


UPDATE!!! Hurricane Data Analysis Tool

The Hurricane Analysis Tool allows users to overlay various data products relevant in the study of hurricanes in an area plot, a time plot or animation using an interactive tool. The data products being offered include NCEP/CPC 4-km Global (60 deg N - 60 deg S) Merged IR Brightness Temperature Dataset, TRMM's product 3B42, TMI's sea surface temperature, NCEP Reanalysis sea level pressure and QuikScat's wind. This tool is beneficial for users to obtain a visualization comparison of two products during a hurricane event.

The Hurricane Archive Gallery gets a Face Lift

Hurricane Archive Gallery gets a face lift and is now dynamic! Check out the new gallery interface that allows you to select the year and hurricanes you want to view. Data access has also been added to the gallery along with QuikScat Wind and new CloudSat images! Take a look!

Hurricane Archive Dynamic Gallery

Latest Generated 3-Hour Rainfall Total Images

These are the latest images derived from the 3-hour near-real-time rainfall total (TMPA or 3B42RT) of the Atlantic and Gulf regions. The images created using the Giovanni analysis tool with the latest available data granules. These are generated and updated on a daily basis to observe current rainfall total activity. You can view more current images and animations of these and other parameters, such as AIRS temperature and Surface Pressure, by visiting the Image Gallery. A Past Hurricane Archive is also available to view animations of data set parameters of hurricanes that developed over the Atlantic region.

3-hourly near-real-time rainfall total of the Atlantic region


 3-hourly near-real-time rainfall total of the Atlantic region derived from the TRMM Project Multi-Satellite
Precipitation Analysis (TMPA or 3B42RT. This image was created using the interactive Giovanni application.

Current precipitation in the Gulf region  3-hourly near-real-time rainfall total of the Gulf region derived from the TRMM Project Multi-Satellite
Precipitation Analysis (TMPA or 3B42RT). Go to Giovanni to view an interactive version.


Latest News

IMERG near-real-time data showed three tropical storms and typhoons spinning in the western Pacific Ocean on July 7, 2015.
Oct 01, 2015 - Near-Real-Time IMERG Early and Late Run Datasets Available at GES DISC

IMERG: Integrated Multi-satellitE Retrievals for GPM (Global Precipitation Measurement) Mission

+ Read More…
Giovanni-4 serves NASA Earth science data and interdisciplinary research with a multitude of analytical options, faster performance, and portability to other NASA data centers. Giovanni-4 will soon be available as open source software.
Sep 01, 2015 - Giovanni-4 takes center stage at the NASA GES DISC

Faster, more capable data exploration system replaces the previous version (Giovanni-3)

+ Read More…
MODIS image of the tropical Atlantic Ocean, June 24, 2009. Saharan dust and the ITCZ cause hemispheric asymmetry for aerosols and clouds, as described by Kishcha et al. Gray areas are gaps between observational swaths.
Aug 31, 2015 - July and August 2015 issues of The Giovanni News are online

July issue features summaries of six research papers using Giovanni; August issue discusses dust & color palettes

+ Read More…
"Data Rods" provide a way for hydrologists and meteorologists to easily use data acquired by NASA satellites.
Aug 06, 2015 - “Data Rods” from the NASA GES DISC

Transforming satellite observations of Earth into temporal data for specific locations

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This visualization of Tropical Rainfall Measuring Mission (TRMM) data for June 17, 2013 shows the heavy rainfall in northern India that contributed to the Kedarnath flood and landslide disaster.
Jul 30, 2015 - Giovanni publications update, January-June 2015

Data system employed for a wide variety of Earth science research using NASA data

+ Read More…

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Last updated: May 21, 2014 09:52 AM ET