Atmos CompositionTRMM Online Visualization and Analysis System (TOVAS)
| Status Update of Version 7 TRMM 3B42, 3B43 (2012/05/15) |
From George Huffman and David Bolvin: Due to some technical difficulties, the estimated date for the Version 7 TRMM 3B42, 3B43 release is early June.
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| Updated 3B41RT and 3B42RT posted for 8 March 2012 (2012/03/15) |
From George Huffman: A processing problem at CPC during the period 00-17Z 8 March 2012
caused completely missing fields to be inserted in the CPC 4-km Merged
IR datasets that serve as input to 3B41RT and 3B42RT. The issue was
rectified and the datasets reprocessed and posted. For simplicity,
3B41RT and 3B42RT were reprocessed for the entire day 8 March 2012.
Users should discard the old copies and re-pull fresh copies. Note: The data have been updated in TOVAS.
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| Two new beta prototypes have been added in TOVAS (2012/01/06) |
TMPA-RT snow screening for GPROF-TMI RT migrated to using MHS (2011/10/14) |
From George Huffman: Starting with 03 UTC on 14 October 2011, the snow screening in the TMPA-RT for the RT GPROF-TMI was switched to MHS-based estimates. Developmental testing shows that the MHS tends to screen a somewhat larger area than AMSR-E, meaning artifacts should be controlled, but somewhat more good data might be lost near areas with icy/frozen surface.
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AMSR-E and TMPA-RT (2011/10/11) |
From George Huffman: The EOS Aqua AMSR-E microwave imager stopped functioning on 4 October, 2011, likely permanently. AMSR-E was the only microwave imager, besides that on TRMM, in the current TMPA-RT inputs, so this is definitely a loss. The NOAA-19 microwave sounder is in essentially the same orbital slot as that of AMSR-E and, thus, will provide the TMPA-RT with microwave coverage for that time slot. The net result of the loss of AMSR-E, however, is an incremental decrease in quality, most noticeable as a reduction in the amount of light precipitation reported in the data set over ocean.
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TOVAS New Release (2008/09/12) |
Giovanni TOVAS is in transition to a new web host. Two new transitioned instances of TOVAS have been released:
| As planned, all current TOVAS instances, listed below in this page, will be similarly converted to the new system. |
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.
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