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Data Set ID: 
GLAH03

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

Level-1A global engineering data (GLAH03) include satellite housekeeping data used to calibrate data values for GLA01 and GLA02.

This is the most recent version of these data.

Version Summary: 

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

STANDARD Level of Service

Data: Data integrity and usability verified

Documentation: Key metadata and user guide available

User Support: Assistance with data access and usage; guidance on use of data in tools

See All Level of Service Details

Parameter(s):
  • SENSOR CHARACTERISTICS > TOTAL TEMPERATURE
Data Format(s):
  • HDF
Spatial Coverage:
N: 86, 
S: -86, 
E: 180, 
W: -180
Platform(s):ICESat
Spatial Resolution:
  • 60 m to 70 m x 60 m to 70 m
Sensor(s):CD, GLAS, GPS, GPS Receiver, LA, PC
Temporal Coverage:
  • 20 February 2003 to 11 October 2009
Version(s):V33
Temporal Resolution3 hourMetadata XML:View Metadata Record
Data Contributor(s):H. Zwally, Robert Schutz, James Abshire

Geographic Coverage
Other Access Options

Other Access Options

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Download Via HTTPS: An Earthdata Login account is required to access these data.

Once you have logged in, you will be able to click and download files via a Web browser. There are also options for downloading via a command line or client. For more detailed instructions, please see Options Available for Bulk Downloading Data from HTTPS with Earthdata Login.

Earthdata Search: This application allows you to search, visualize, and access data across thousands of Earth science data sets. Additional customization services are available for select data sets, including subsetting, reformatting, and reprojection.

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 Engineering Data (HDF5), Version 33. [Indicate subset used]. Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/ICESAT/GLAS/DATA103. [Date Accessed].
A user guide is not available for this data set.
No technical references available for this data set.

FAQ

Do you have code for reading HDF data files into MATLAB, IDL, Python, or NCL?
The HDF Group has example code for access and visualization of MODIS, GLAS HDF5, AMSR-E, and NISE data in MATLAB, IDL, Python, and NCL.
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To convert HDF5 files into binary format you will need to use the h5dump utility, which is part of the HDF5 distribution available from the HDF Group. How you install HDF5 depends on your operating system. Full instructions for installing and using h5dump on Mac/Unix and... read more

How To

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... read more
Programmatic Data Access Guide
Data from the NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) can be accessed directly from our HTTPS file system or through our Application Programming Interface (API). Our API offers you the ability to order data using specific temporal and spatial filters... read more
ICESat, IceBridge, and ICESat-2: A primer on data access across the three missions
This guide will provide an overview of the altimetry measurements and data sets across the missions, as well as a guide for accessing the data through NASA Earthdata Search and programmatically using an Application Programming Interface (API). Overview  The NASA ICESat, Operation IceBridge,... read more
Filter and order from a data set web page
Many NSIDC data set web pages provide the ability to search and filter data with spatial and temporal contstraints using a map-based interface. This article outlines how to order NSIDC DAAC data using advanced searching and filtering.  Step 1: Go to a data set web page This article will use the... read more
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Questions? Please contact:
NSIDC User Services
Phone: 1 303 492-6199
Email: nsidc@nsidc.org