Short Name:

TRMM_2A25

TRMM Precipitation Radar Rainfall Rate and Profile L2 1.5 hours V7 (TRMM_2A25) at GES DISC

The TRMM 2A25 data are estimates of the three-dimensional distribution of rain from the TRMM Precipitation Radar. The average rainfall rate between two pre-defined altitudes is calculated for each beam position. Other output data include parameters of Z-R relationships, integrated rain rate of each beam, range bin numbers of rain layer boundaries, and many intermediate parameters. Iguchi and Meneghini (1994) describe this algorithm. Pre-Boost (before 7 August 2001): Temporal Resolution: 91.5 min/orbit ~ 16 orbits/day; Swath Width: 215 km; Horizontal Resolution: 4.3 km Post-Boost (after 24 August 2001): Temporal Resolution: 92.5 min/orbit ~ 16 orbits/day; Swath Width: 247 km; Horizontal Resolution: 5.0 km

Overview Download Data Citing These Data Documentation Additional Information

Science Keywords:

Spatial Extent:

Bounding Rectangle:

N: 38.0 S: -38.0 E: 180.0 W: -180.0

Data Format(s):

Distribution: HDF

Temporal Extent:

1997-12-31 to 2015-04-01

Platform(s):

TRMM

Data Center(s):

NASA/GSFC/SED/ESD/GCDC/GESDISC

Instrument(s):

Version:

Download Options

Title: TRMM Precipitation Radar Rainfall Rate and Profile L2 1.5 hours V7
Creator: Tropical Rainfall Measuring Mission (TRMM)
Publisher: Goddard Earth Sciences Data and Information Services Center (GES DISC)
Release Date: 2011-07-01T00:00:00.000Z
Linkage: https://disc.gsfc.nasa.gov/datacollection/TRMM_2A25_7.html

GENERAL DOCUMENTATION: https://pps.gsfc.nasa.gov/Documents/filespec.TRMM.V7.pdf, File specification document.
GENERAL DOCUMENTATION: https://pps.gsfc.nasa.gov/Documents/formatChangesV7.pdf, Comparison between TRMM versions 6 and 7.
GENERAL DOCUMENTATION: http://www.eorc.jaxa.jp/TRMM/documents/PR_algorithm_product_information/pr_manual/PR_Instruction_Manual_V7_L1.pdf, TRMM Precipitation Radar Instruction Manual (provided by JAXA)
READ-ME: https://disc2.gesdisc.eosdis.nasa.gov/data/TRMM_L2/TRMM_2A25/doc/README.TRMM_V7.pdf, README Document
GENERAL DOCUMENTATION: ftp://gpmweb2.pps.eosdis.nasa.gov/tsdis/AB/docs/anomalous.html, TRMM Data Gaps

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Data Dates

Creation	2011-07-01T00:00:00.000Z
Last Revision	2016-04-20T00:00:00.000Z

Processing Level

Quality Scan Status is provided containing scan-by-scan information on quality, platform and instrument control data, and fractional orbit number. Status Flag is also provided indicating whether the data are obtained over sea or land and the degree of data reliability.

Collection Progress
Complete
Access Constraints

None

Publication References

Title: Correction of sampling errors in ocean surface cross-sectional estimates from nadir-looking weather radar.

Publication Date: 1997-01-01

Author(s): Taylor I.J., G.M. Heymsfield, R. Meneghini, and L.S. Miller

Series: J. Atmos. Oceanic Technol

Volume: 14

Pages: 203-210
Title: Intercomparisons of single-frequency methods for retrieving a vertical rain profile from airborne or spaceborne radar data.

Publication Date: 1994-01-01

Author(s): Iguchi, T. and R. Meneghini

Series: J. Atmos. Oceanic Technol.

Volume: 11

Pages: 1507-1516
Title: A generalized surface echo radar equation for down-looking pencil beam radar.

Publication Date: 1995-01-01

Author(s): Kozu, T.

Series: IEICE Trans. Commun.

Volume: E78-B

Pages: 1245-1248
Title: A class of single- and dual-frequency algorithms for rain rate profiling from a spaceborne radar. Part I: Principle and tests from numerical simulations.

Publication Date: 1994-01-01

Author(s): Marzoug, M. and P. Amayenc

Series: J. Atmos. Oceanic Technol.,

Volume: 11

Pages: 1480-1506
Title: Range profiling of the rain rate by an airborne weather radar.

Publication Date: 1990-01-01

Author(s): Meneghini, R. and K. Nakamura

Series: Remote Sens. Environ.

Volume: 31

Pages: 193-209

Related URLs

Ancillary Keywords

EOSDIS

ISO Topic Categories

CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Projects

Project Short Name	Campaigns	Project Dates
TRMM	No campaigns listed.	No dates provided.

Location Keywords

- GEOGRAPHIC REGION
- TROPICS

NASA/GSFC/SED/ESD/GCDC/GESDISC
ARCHIVER

Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
This data center does not have any addresses listed.
This data center does not have any contact mechanisms listed.
https://disc.gsfc.nasa.gov/

Home Page

ANDREY SAVTCHENKO
Metadata Author

ANDREY SAVTCHENKO
- Distributed Active Archive Center Global Change Data Center
  Code 610.2
  NASA Goddard Space Flight Center
  Greenbelt, MD 20771
Email

301-614-5705
TOSHIO IGUCHI
Investigator

TOSHIO IGUCHI
- Communications Research Laboratory
  Global Environment Division
  4-2-1 Nukui-Kita-Machi
  Koganei,, Tokyo 184-8795
Email

81-299-84-7117

81-299-84-7157
GES DISC HELP DESK SUPPORT GROUP
Data Center Contact

GES DISC HELP DESK SUPPORT GROUP
NASA/GSFC/SED/ESD/GCDC/GESDISC
- Goddard Earth Sciences Data and Information Services Center
  Code 610.2
  NASA Goddard Space Flight Center
  Greenbelt, MD 20771
Email

301-614-5224

301-614-5268

Metadata Dates

Creation	2011-07-15T00:00:00.000Z
Last Revision	2018-12-01T14:58:21.000Z

File Distribution Information

Format: HDF

Format Type: Native

Media: Online Archive

Average File Size: 23 MB

Fees: None

CMR Search

TRMM Precipitation Radar Rainfall Rate and Profile L2 1.5 hours V7 (TRMM_2A25) at GES DISC

Collection Information

Data Identification

Data Dates

Publication References

Related URLs

Other Descriptive Keywords

Ancillary Keywords

ISO Topic Categories

Acquisition Information

Projects

Temporal Information

Spatial Information

Location Keywords

Data Centers

NASA/GSFC/SED/ESD/GCDC/GESDISC

Goddard Earth Sciences Data and Information Services Center (formerly Goddard DAAC), Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

Data Contacts

ANDREY SAVTCHENKO

ANDREY SAVTCHENKO

TOSHIO IGUCHI

TOSHIO IGUCHI

GES DISC HELP DESK SUPPORT GROUP

GES DISC HELP DESK SUPPORT GROUP

Metadata Dates

Archive And Distribution Information

File Distribution Information