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Data Set ID:
GLAH04

GLAS/ICESat L1A Global Laser Pointing Data (HDF5), Version 33

Level-1A global laser pointing data (GLAH04) contain two orbits of attitude data from the spacecraft star tracker, instrument star tracker, gyro, and laser reference system, and other spacecraft attitude data required to calculate precise laser pointing.

Version Summary:

For information about Version 33, see the NSIDC ICESat Description of Data Releases page.

Geographic Coverage

Parameter(s):
  • Platform Characteristics > Attitude Characteristics
  • Platform Characteristics > Viewing Geometry
Spatial Coverage:
  • N: 86, S: -86, E: 180, W: -180

Spatial Resolution:
  • 60 m to 70 m x 60 m to 70 m
Temporal Coverage:
  • 20 February 2003 to 11 October 2009
Temporal Resolution: 3 hour
Data Format(s):
  • HDF
Platform(s) ICESAT
Sensor(s): ALTIMETERS, GLAS
Version: V33
Data Contributor(s): H. Zwally, Robert Schutz, James Abshire
Data Citation

As a condition of using these data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Zwally, H. J., R. Schutz, and J. Abshire. 2013. GLAS/ICESat L1A Global Laser Pointing Data (HDF5), Version 33. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: http://dx.doi.org/10.5067/ICESAT/GLAS/DATA104. [Date Accessed].
No technical references available for this data set.

How To

How to read GLAS HDF5 data into MATLAB, IDL, Python, or NCL
The HDF Group has example code for access and visualization of GLAS HDF5 data in MATLAB, IDL, Python, and NCL.
Stepping through the HDFView User Guide with GLAS HDF5 Data
HDFView https://support.hdfgroup.org/products/java/hdfview/ When you first open HDFView, the HDFView window appears with an empty tree and data panel. The main window consists of six different components: Menu bar, Tool bar, File bar, Tree panel, Data Panel, Info panel. For further description... read more