TRMM Online Visualization and Analysis System (TOVAS)

A Note from TRMM Data Provider (2008/05/01)
1 May 2008 Server configuration problems within NOAA caused faulty IR data to contaminate the 01 and 09 UTC 30 April 2008 3B41RT files and the 09 UTC 30 April 2008 3B42RT. The first two were deleted, while the third was recomputed from 3B40RT alone. Users who pulled the initial contaminated files should delete (3B41RT) or re-pull (3B42RT) the affected files.
A Note from TRMM Data Provider (2008/04/14)
14 April 2008 The infrared data suppliers at NOAA/CPC had a major hardware failure on 11 April that resulted in the loss of all infrared data in the TMPA-RT system for the period 01UTC 11 April through 21UTC 13 April 2008. As a result, no 3B41RT and 3B42RT products are currently available for that period. New IR data are now flowing, but it will take several days for NOAA/CPC to reconstruct the lost data. So, we intend to create 3B42RT for the affected period off-line, using only the 3B40RT products as input. Since the microwave data now cover 75 or 80% of each 3-hourly map, this fill-in should be satisfactory in most cases. Nonetheless, users should be aware that sampling error will be higher during the fill-in period.
A Note from TRMM Data Provider (2008/03/15)
A serious processing issue was discovered that required the re-computation of the Version 6 TRMM products 3B42 and 3B43 for the month of November 2007. The official archive at the Goddard DISC has now been updated, both the HDF data files and the Preview images. Users must discard the old, defective files and re-pull the new files for the November 2007 Version 6 3B42 and/or 3B43. Likewise, the TOVAS system has updated its data holdings. Users who previously used TOVAS to access November 2007 data from the Version 6 3B42 (3-hourly or daily) and/or 3B43 (monthly) must discard those results and re-acquire the analyses that they performed. Our apologies for the confusion.)

Welcome to TOVAS, a member of the Giovanni (GES-DISC DAAC On-line Visualization and Analysis System) family, which provides users with an easy-to-use, Web-based interface for the visualization and analysis of Earth Science data.

Note: The Java Version uses Java applet for interactively selecting an area of interest. If you have difficulties in using the Java Version, please try the Non Java Version.

Near-Real-Time Monitoring Product (For research, use Archive Data.)

Experimental Real-Time TRMM Multi-Satellite Precipitation Analysis (TMPA-RT): 3B42RT JAVA_Version  Non_JAVA_Version
Daily Global and Regional Rainfall (TMPA-RT 3B42RT derived) JAVA_Version  Non_JAVA_Version
TMPA-RT Intermediate IR Product: 3B41RT (VAR) JAVA_Version  Non_JAVA_Version
TMPA-RT Intermediate Microwave Product: 3B40RT (HQ) JAVA_Version  Non_JAVA_Version

Rainfall Archives

Monthly Global Precipitation (GPCP) JAVA_Version  Non_JAVA_Version
Prototype Interactive Intercomparison of Rainfall Products JAVA_Version  Non_JAVA_Version
3-hourly TRMM and Other Rainfall Estimate (3B42 V6) JAVA_Version  Non_JAVA_Version
Daily TRMM and Other Rainfall Estimate (3B42 V6 derived) JAVA_Version  Non_JAVA_Version
Monthly TRMM and Other Data Sources Rainfall Estimate (3B43 V6) JAVA_Version  Non_JAVA_Version
Monthly Rainfall (3B43 V6) Anomaly JAVA_Version  Non_JAVA_Version
Inter-Comparison of Rainfall Climatology JAVA_Version  Non_JAVA_Version
Monthly TMI rain, latent heat, cloud liquid water profiles (3A12 V6) JAVA_Version  Non_JAVA_Version
Monthly Rainfall (3A25 V6) JAVA_Version  Non_JAVA_Version

Ground Observation Archives

Monthly Willmott and Matsuura Global Precipitation (1950 - 1999) JAVA_Version  Non_JAVA_Version
Monthly GPCC Rainfall (1986 - Present, Monitoring Product) JAVA_Version  Non_JAVA_Version

Continued improvement of this online tool, and the production and dissemination of these data sets, depends on your (our users) informing us on how you have used this tool and these data. We are particularly interested in the value of this tool and these data sets to your research. Please send your comments to help-disc@listserv.gsfc.nasa.gov.

Please visit our other Giovanni Websites at the GES DISC:

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  • Last updated: May 09, 2008 19:15:53 GMT