Precipitation: OVERVIEW

IMPORTANT MESSAGE Jan 29, 2013 IMPORTANT: Rollback and Replacement of TRMM VIRS Data for Sat. January 26, 2013

From PPS: PPS has rolled back and replaced TRMM VIRS products (1A01, 1B01) for 
Saturday January 26, 2013.  If you have obtained any of these products
previously either through a Standing Order or directly from our ftp 
archive, please discard these older files and use the replacement files
bearing a date/time of 1/28/2013 - 19:12 and after.

After PPS had processed TRMM data products for Jan. 26, 2013, PACOR made 
an improved Level Zero VIRS file available with recovered missing
packets. PPS decided to use this version 2 file to improve the quality and 
integrity of the VIRS data for that period.  Please see the message
from Sylvia Campbell (below).

"VIRS is missing 33 packets due to PSN jumps.  Although the original 
product is above criteria (99.98% data recovery), the missing data was
recovered in-house.  The PSN jumps affected different time periods on the 
prime and backup systems.  Data events from both systems were used to
recover the data.  Therefore, an LOR did not have to be ordered.  A 
version 2 product (VIRS only) is available for transmission.

OLD Version:
L0VIRS.130126 | TRMM_G051_LZ_2013-01-26T00-00-00Z_V01.DAT1

New Version:
L0VIRS.130126 | TRMM_G051_LZ_2013-01-26T00-00-00Z_V02.DAT1"

We regret any inconvenience that this may cause and appreciate your 
patience.

Please don't hesitate to contact us if you have any questions.

IMPORTANT MESSAGE Dec 19, 2012 Retrospective processing of Version 7 TMPA has been finished

Retrospective processing of Version 7 TMPA has been finished. All data services are up to date, including Mirador, Giovanni TOVAS, etc. Retrospective processing of TMPA-RT is still ongoing and as soon as it is done, we will update Giovanni TOVAS.

IMPORTANT MESSAGE Nov 21, 2012 IMPORTANT: Data Replacement for TRMM 3B42/3B43 Products for Jan. 2000-Sep. 2010

From PPS: Due to a processing error during the first Version 7 re-processing cycle,
PPS will be rolling back and replacing TRMM 3B42 and 3B43 data products
including Browse for January 2000 through September 2010.

The TRMM GIS products will also be replaced, but will not be removed prior
to replacement.

During the next several days (over the Thanksgiving break) PPS will be
deleting the existing 3B4X products from our archives in preparation for
reprocessing these replacement products. Therefore, please be aware that
the 3B42 and 3B43 and associated products will be temporarily unavailable.

If you have obtained any 3B42/3B43 data from the PPS ftp data archive or
through a Standing Order/s, please discard this data and use the
replacement products once they become available. PPS will issue
another announcement once this new data is archived.

We apologize for any inconvenience that this correction may cause and
appreciate your patience and understanding. Please let us know if you
have any questions or concerns.

Welcome to the Precipitation Data and Information Services Center (PDISC). Here are some links to help you get started:

Global Precipitation Measurement (GPM)

GPM Logo An international satellite mission to be launched by NASA and JAXA in 2014 that will set new standards for precipitation measurements worldwide using a network of satellites united by the GPM Core Observatory. For more information on the mission visit the Precipitation Measurement Missions informational web site.

The GES DISC will archive the data and provide the same expansive services currently offered to the user community for the TRMM data products. More information will be available as the data gets closer to the launch of the mission.

Search for Precipitation Data

TRMM data can be located using our new fast and efficient search interface Mirador.

Explore Precipitation Data with Giovanni

Giovanni Icon Giovanni TOVAS, a member of the Giovanni (GES-DISC DAAC On-line Visualization and Analysis System) family,provides users with an easy-to-use, Web-based interface for the visualization and analysis of Earth Science data without having to download the data first.

PDISC Guide for New Users

For users new to the PDISC, we offer a getting started guide.

Precipitation Data Services at the DISC

Facilitate data access, information processing to support precipitation research and decision making
Nurture cross disciplinary precipitation related research, such as energy and water cycle, aerosol-precipitation interactions

The data holdings at the PDISC consist of remote sensing, in-situ and forecast (to be added in the future) precipitation and ancillary data. The PDISC also provides access to near-real-time and historical precipitation data. The TRMM Online Visualization and Analysis System TOVAS provides a fast and easy way to access the most popular products. While you're here, check out: