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TRMM V6 Initial Processing Trending Results |
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TRMM V6 Initial Processing Trending Results |
Due to the TRMM altitude boost 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
Boost Completed on 8/24/01
Graphs and trend files are automatically updated
when TSDIS processing completes for the day.
Retro-processing using 1B21 V5.56 has completed.
We are still updating the contents of these pages. Please notify TSDIS Help Desk of any problems you encounter.
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:
8/7: First boost at ~14:54UTC
8/18: Return from Sun Acq.
8/24: Last altitude boost.
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).
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.
VIRS: 1B01
Radiances |
TMI: 1B11
Low Res Channel Tb |
TMI: 2A12
Surface Rainfall |
Combined: 2B31
Surface Rainfall |
Return to TRMM Trending Results Main page