TRMM_2A21_7

TRMM Precipitation Radar Surface Cross-Section L2 1.5 hours V7 (TRMM_2A21) at GES DISC

Version 7 eng
  • Abstract
    This is the sigma zero algorithm, which inputs the PR power (1B21) and computes estimates of the path attenuation and its reliability by using the surface as a reference target. It also computes the spatial and temporal statistics of the surface scattering cross section and classifies the cross sections into land/ocean and rain/no rain categories. Changes in horizontal resolution resulting from the TRMM boost that occurred on 24 August 2001: 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

Data Identification Fields:

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    Data Dates
    Creation
    Last Revision
    Processing Level

    2

    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.
    Collection Progress

    Complete

    Access Constraints

    None

    Publication References
    • Correction of sampling errors in ocean surface cross-sectional estimates from nadir-looking weather radar.
      1997-01-01

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

      J. Atmos. Oceanic Technol

      Vol: 14

      Pages: 203-210

    • Intercomparisons of single-frequency methods for retrieving a vertical rain profile from airborne or spaceborne radar data.
      1994-01-01

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

      J. Atmos. Oceanic Technol.

      Vol: 11

      Pages: 1507-1516

    • A generalized surface echo radar equation for down-looking pencil beam radar.
      1995-01-01

      Author(s) Kozu, T.

      IEICE Trans. Commun.

      Vol: E78-B

      Pages: 1245-1248

    • A class of single- and dual-frequency algorithms for rain rate profiling from a spaceborne radar. Part I: Principle and tests from numerical simulations.
      1994-01-01

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

      J. Atmos. Oceanic Technol.,

      Vol: 11

      Pages: 1480-1506

    • Range profiling of the rain rate by an airborne weather radar.
      1990-01-01

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

      Remote Sens. Environ.

      Vol: 31

      Pages: 193-209

Related URLs
    Science Keywords
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • RADAR
    • SIGMA NAUGHT
    • EARTH SCIENCE
    • ATMOSPHERE
    • PRECIPITATION
    • LIQUID PRECIPITATION
    • RAIN
Other Descriptive Keywords
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Ancillary Keywords
  • EOSDIS
ISO Topic Categories
  • GEOSCIENTIFIC INFORMATION
Additional Attributes
  • Data Granularity
    STRING
    The time coverage of individual data granules.
    Resolution Range Begin Range End Unit of Measure Accuracy

Acquisition Information Fields:

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Platforms
  • Earth Observation Satellites
    TRMM
    Instruments
    • PR
Projects
Project Short Name Campaigns Project Dates
TRMM No campaigns listed. No dates provided.

Temporal Information Fields:

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Spatial Information Fields:

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Location Keywords
    • GEOGRAPHIC REGION
    • TROPICS

Data Centers

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  • 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.

Data Contacts

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  • ANDREY
    Metadata Author
    ANDREY SAVTCHENKO

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

  • 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

Collection Citations Fields:

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    Collection Citations