Quick Links
- News and Updates
- NASA GPM Website
- JAXA (Japan Aerospace Exploration Agency)
- GES-DISC (GSFC Earth Sciences Data and Information Services Center)
- TRMM Website (Historical Information)
- Colorado State Univ/PPS MEaSURES Product
- Data Search,Custom Subsets and Subscriptions(STORM)
- Register to obtain TRMM,GPM and Partner Data Products
- Instructions for Accessing GPM Near Realtime Data
- DOI (Digital Object Identifiers) Services and Registration (ISO 26324)
- GPM Ground Validation Data
- Global Hydrology Resource Center Field Campaigns
TRMM Trending - Version 7 Initial Processing
Please note: The TRMM mission ended in 2015 and the information below is provided for reference and archival purposes. Tropical Rainfall Measuring Mission (TRMM) post-Version 7 products fully incorporate TRMM data into the Global Precipitation Measurement (GPM) mission data processing. TRMM Level 2 (L2) and Level 3 (L3) products have now become part of the GPM data suite
Due to the TRMM altitude boost PPS/TSDIS has begun trending certain variables. The trending software is run on each orbit of data producing ASCII files that contain the sum, sum of squares and count information of each variable along with other bookeeping information. These trend files are then used to make the various graphs shown below.
- The ASCII trend files can be downloaded from the Trend Data Files Page
- TRMM Orbit Boost Completed on 8/24/01
Graphs and trend files are automatically updated when PPS/TSDIS processing completes for the day.
- Retro-processing using 1B21 V5.56 has completed.
- Tracking of TRMM attitude with PR available.
We are still updating the contents of these pages. Please notify PPS/TSDIS HelpDesk of any problems you encounter.
Return to Main "Trending Results Page"
Graphs/
Time Series Plots and Histogram
Below are the trending graphs organized by algorithm.
Time series plots display the mean and standard deviation of a variable per day There are three (3) vertical lines in the daily plots that represent the dates of:
The average of the daily means is listed on the x-axis for two intervals (5/1/01,8/6/01) and (8/25/01, present). |
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Histogram plots display a histogram of data before the boost [5-1-01 through 8-6-01] with an overlay of another histogram from data after the boost [8-25-01 to present]. The vertical lines in the graphs denote the means of the two distributions. The base data for the histograms are the means computed from every orbit in the trend files. We're still playing with the bin sizes and ranges on these. Histograms are presented in terms of % of data, so direct comparisons can be made between the pre- and post-boost data sets |
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VIRS |
TMI |
PR |
Combined |
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VIRS: 1B01 |
TMI:1B11 |
PR: 1B21 |
Combined: 2B31 |
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TMI:2A12 |
PR: 2A21 |
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PR: 2A23 |
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PR: 2A25 |
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