[Parameters: Topic='SPECTRAL/ENGINEERING', Term='RADAR', Variable_Level_1='RADAR BACKSCATTER']
TRMM Precipitation Radar (PR) Level 1 Power and Reflectivity Products (TRMM Product 1B21)
Entry ID: GES_DISC_TRMM_1B21_V7

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Summary
Abstract: The Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan satellite mission to monitor tropical and subtropical precipitation and to estimate its associated latent heating.

The TRMM Precipitation Radar (PR), the first of its kind in space, is an electronically scanning radar, operating at 13.8 GHz that measures the 3-D rainfall distribution ... View entire text
Related URL
Link: GET DATA > MIRADOR
Description: Access to TRMM Level 1B Product Precipitation Radar (PR) Power 1B21 data online.
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Geographic Coverage
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Spatial coordinates   
  N: 38.0   S: -38.0   E: 180.0   W: -180.0
Min Altitude: SURFACE Max Altitude: 23 KM

Data Set Citation
Dataset Originator/Creator: NASA,JAXA, Tropical Rainfall Measuring Mission (TRMM)
Dataset Title: TRMM Precipitation Radar (PR) Level 1 Power and Reflectivity Products (TRMM Product 1B21)
Version: 7
Online Resource: http://mirador.gsfc.nasa.gov/cgi-bin/mirador/presentNavigation.pl?t...
Temporal Coverage
Start Date: 1997-12-07
Location Keywords
Data Resolution
Latitude Resolution: 4 km
Longitude Resolution: 4 km
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree
Vertical Resolution: 125-250 m
Vertical Resolution Range: 100 meters - < 1 km
Temporal Resolution: 16 orbits per day
Temporal Resolution Range: Daily - < Weekly
Science Keywords
ISO Topic Category
Platform
TRMM > Tropical Rainfall Measuring Mission Ancillary Description
Instrument
PR > TRMM Precipitation Radar Ancillary Description
Project
Quality A Table structure (called Scan Status) is included in the HDF file,
containing entries on a scan-by-scan basis. These entries include a
geolocation flag and a data quality flag, indicating the percentage of
pixels along each scan with values within a pre-defined range.
Access Constraints None
Ancillary Keywords
Data Set Progress
IN WORK
Originating Center
GSFC_GES_DISC
Data Center
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 Supplemental Info
Data Center URL: http://disc.gsfc.nasa.gov/
Dataset ID: TRMM PR Power 1B21

Data Center Personnel
Name: GES DISC HELP DESK SUPPORT GROUP
Phone: 301-614-5224
Fax: 301-614-5268
Email: gsfc-help-disc at lists.nasa.gov
Contact Address:
Goddard Earth Sciences Data and Information Services Center
Code 610.2
NASA Goddard Space Flight Center
City: Greenbelt
Province or State: MD
Postal Code: 20771
Country: USA
Distribution
Distribution Media: FTP
Distribution Size: 15-16 files /day; 80,000 - 81,000 KB/file
Distribution Format: HDF
Fees: none
Personnel
JAXA EOC USER SERVICES
Role: TECHNICAL CONTACT
Phone: +81-49-298-1262
Fax: N/A
Email: orderdesk at eoc.jaxa.jp
Contact Address:
Japan Aerospace Exploration Agency (JAXA)
Earth Observation Center
City: 1401 NUMANOUE OHASHI HATOYAMA-MACHI
Province or State: HIKI-GUN SAITAMA-KEN
Postal Code: 350-0302
Country: JAPAN
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Publications/References
File Specifications for TRMM Products: ftp://pps.gsfc.nasa.gov/pub/v7filespec/filespec.TRMM.V7.pdf

Metadata for TRMM Products: ftp://pps.gsfc.nasa.gov/pub/v7filespec/filespecMeta.TRMM.V7.pdf

TRMM V6 vs. V7 Major Data Format Changes: http://pps.gsfc.nasa.gov/Documents/formatChangesV7.pdf

T. Kozu, T. Kawanishi, K. Oshimura, M. Satake, H. Kumagai; TRMM
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Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2011-07-15
Last DIF Revision Date: 2013-03-22

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