Atmos CompositionTRMM Online Visualization and Analysis System (TOVAS)
| Status Update of TRMM 3B42, 3B43 (2012/01/19) |
From George Huffman: The TMPA (3B42, 3B43) Version 7 algorithms have been delivered to TSDIS/PPS
and will start the computation on March 1, 2012 or earlier.
One remaining issue is that SSMIS is still not settled down,
so it's not clear how much SSMIS data will be included in the record.
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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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Status of TRMM 3B42, 3B43 (2011/09/07) |
From TSDIS/PPS: There will be a delay in the production of all 3B4X products after the
conclusion of the previous TRMM product version 6 which ended in June 2011.
| The responsible algorithm scientists are working on new versions for the other inputs (SSMI, etc.) that make up these level 3 products, as well as integrating improved rain gauge input; therefore these products may not be available for quite some time (months after the V7 start). Once the 3B4X products are produced again, I was informed that these will now be available late the next month instead of the usual 2 or more weeks that is customary due to the collection of more input sources that will serve to increase the accuracy of the 3B4X products. We will keep you informed regarding the release time frame once we get any updates.
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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