GLAH01_033

GLAS/ICESat L1A Global Altimetry Data (HDF5) V033

Version 033
  • Abstract
    Data granules contain approximately 23 minutes (1/4 orbit) of data and will include pulse travel times, the transmitted and received waveform, transmitted and received energy, echo time offsets, and instrument filter and threshold values.
  • Purpose
    The waveforms are used by altimetric scientists studying detailed surface characteristics that cannot be fully expressed in the waveform parameterization on GLAH05, especially over ice sheets and land. Instrument scientists used the data to check the health and welfare. The data values were used as input to compute parameters on GLAH05. Each GLAH01 file was created from an equivalent GLA01 binary formatted file. The provenance metadata shows the history that created the GLA01.
  • Version Description
    Initial Version

Data Identification Fields:

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    Data Dates
    Creation
    Last Revision
    Processing Level

    1A

    Sensor Measurements

    Quality
    Collection Progress

    In Work

    Access Constraints

    Data may not be reproduced or distributed without including the CitationForExternalPublication for this product included in this Metadata. Data may not be distributed in an altered form without the written permission of the GLAS Science Team.

    Metadata Associations
Related URLs
    Science Keywords
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • INFRARED WAVELENGTHS
    • SENSOR COUNTS
    • WAVEFORM

Acquisition Information Fields:

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Platforms
  • Spacecraft
    ICESat
    Instruments
    • GLAS
    • GPS

Temporal Information Fields:

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Temporal Keywords
  • Day

Spatial Information Fields:

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    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL CARTESIAN ORBIT
Location Keywords
    • GEOGRAPHIC REGION
    • GLOBAL

Data Centers

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  • GSFC I-SIPS
    PROCESSOR

    This data center does not have any addresses listed.

    This data center does not have any contact mechanisms listed.

  • NSIDC
    ARCHIVER

    This data center does not have any addresses listed.

    This data center does not have any contact mechanisms listed.

  • Not provided
    ORIGINATOR

    Building N-159, NASA/GSFC Wallops Flight Facility.
    Wallops Island, Virginia 23337

    M-F, 8:00am to 4:30pm. Eastern Time.
    Contact Details

    None

  • Not provided
    ARCHIVER

    3925 W. Braker Lane, Center for Space Research
    Austin, Texas 78759-5321

    M-F, 8:00am to 4:30pm Central Time
    Contact Details

    None

  • Not provided
    PROCESSOR

    Building 33, Rm A-217
    Greenbelt, Maryland 20771

    M-F, 8:00am to 4:30pm Eastern Time
    Contact Details

    None.

  • Not provided
    PROCESSOR

    Building 33, Rm. B-209D, NASA/GSFC
    Greenbelt, Maryland 20771

    M-F, 8:00am to 4:30pm Eastern Time
    Contact Details

    None

  • ICESat Science Investigator-led Processing System (I-SIPS)
    ORIGINATOR

    Building 33, NASA Goddard Space Flight Center
    Greenbelt, Maryland 20771

    M-F, 8:00am to 4:30pm Eastern Time
    Contact Details

    Contact by e-mail first

  • NASA DAAC at the National Snow and Ice Data Center
    ARCHIVER

    1540 30th St Campus Box 449
    Boulder, Colorado 80309-0449

    9:00 A.M. to 5:00 P.M., U.S. Mountain Time, Monday through Friday, excluding U.S. holidays.
    • 303-492-6199
    • 303-492-2468
    • Email
    Contact Details

    Contact by e-mail first

Data Contacts

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  • David
    Technical Contact
    David Hancock

    Not provided

    This contact does not have any addresses listed.

    This contact does not have any contact mechanisms listed.

  • Bob
    Science Contact
    Bob Schutz

    Not provided

    This contact does not have any addresses listed.

    This contact does not have any contact mechanisms listed.

  • Jay
    Technical Contact
    Jay Zwally

    Not provided

    This contact does not have any addresses listed.

    This contact does not have any contact mechanisms listed.

  • John
    Science Software Development
    John DiMarzio

    Not provided

    This contact does not have any addresses listed.

    This contact does not have any contact mechanisms listed.

Collection Citations Fields:

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    Collection Citations
    • Collection citation title not provided

      The data used in this study were produced by the GLAS Science Team at the ICESat Science Investigator-led Processing System (I-SIPS) at NASA/GSFC. The data archive site is the NSIDC DAAC.