NASA Distributed Active Archive Center (DAAC) at NSIDC

ICESat / GLAS Data

Ice, Cloud, and land Elevation / Geoscience Laser Altimeter System

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Release Schedules

The tables below summarize the release schedule of NASA ICESat/GLAS data: Release-33 and Release 34 currently in progress. The table is ordered by release date, with the most recently received campaign listed first. We recommend you work with the latest release of data which is the highest release number and includes improvements to product algorithms. For information on past releases of ICESat/GLAS data, see the Past Release Schedule Web page.

Note:  Release-33 data should not be mixed with any other data release for science analysis.

The ICESat GLAS Release 33 HDF5 data are converted directly from the Release 33 binary data. Data files were not re-processed during conversion. However, parameters in the HDF5 files are re-ordered, re-named, and logically grouped to take advantage of the HDF5 file structure.

GLAS V33 HDF5 Data Release Schedule
Release Products Temporal
Coverage
(yyyy-mm-dd)
ECS Version* Laser Identifier Orbit Release Date
(yyyy-mm-dd)
33 HDF GLAH01, GLAH02, GLAH03, GLAH04 2003-02-20 to 2009-10-11 V033 HDF All lasers 8-day, 91-day 2013-04-10
33 HDF Atmospheric GLAH07, GLAH08, GLAH09, GLAH10, GLAH11 2003-02-20 to 2009-10-11 V033 HDF All lasers 8-day, 91-day 2013-02-25
33 HDF Altimetry GLAH05, GLAH06, GLAH12, GLAH13, GLAH14, GLAH15 2003-02-20 to 2009-10-11 V033 HDF All lasers 8-day, 91-day 2012-12-26

GLAS Data Current Release Schedule
Release Products Temporal
Coverage
(yyyy-mm-dd)
ECS Version* Laser Identifier Orbit Release Date
(yyyy-mm-dd)
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2003-02-20 to 2003-03-21 V034 1A 8-day 2014-06-12
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA09, GLA11 2003-02-20 to 2003-03-21 V033 1A 8-day 2012-01-31
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2003-03-21 to 2003-03-29 V034 1B 8-day 2014-06-12
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA09, GLA11 2003-03-21 to 2003-03-29 V033 1B 8-day 2012-01-31
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2003-10-04 to 2003-11-19 V034 2A 91-day 2014-06-23
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA08, GLA09, GLA10, GLA11 2003-10-04 to 2003-11-19 V033 2A 91-day 2011-11-01
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2004-02-17 to 2004-03-21 V034 2B 91-day 2014-06-23
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA08, GLA09, GLA10, GLA11 2004-02-17 to 2004-03-21 V033 2B 91-day 2011-11-08
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2004-05-18 to 2004-06-21 V034 2C 91-day 2014-06-30
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA09, GLA11 2004-05-18 to 2004-06-21 V033 2C 91-day 2011-11-14
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2008-11-25 to 2008-12-17 V034 2D 91-day 2014-08-06
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA11 2008-11-25 to 2008-12-17 V033 2D 91-day 2011-11-21
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2009-03-09 to 2009-04-11 V034 2E 91-day 2014-08-08
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA11 2009-03-09 to 2009-04-11 V033 2E 91-day 2011-12-07
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2009-09-30 to 2009-10-11 V034 2F 91-day 2014-08-08
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA11 2009-09-30 to 2009-10-11 V033 2F 91-day 2011-12-12
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2004-10-03 to 2004-11-08 V034 3A 91-day 2014-07-03
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA08, GLA09, GLA10, GLA11 2004-10-03 to 2004-11-08 V033 3A 91-day 2011-08-11
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2005-02-17 to 2005-03-24 V034 3B 91-day 2014-07-08
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA08, GLA09, GLA10, GLA11 2005-02-17 to 2005-03-24 V033 3B 91-day 2011-08-31
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2005-05-20 to 2005-06-23 V034 3C 91-day 2014-07-10
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA08, GLA09, GLA10, GLA11 2005-05-20 to 2005-06-23 V033 3C 91-day 2011-09-08
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2005-10-21 to 2005-11-24 V034 3D 91-day 2014-07-16
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA08, GLA09, GLA10, GLA11 2005-10-21 to 2005-11-24 V033 3D 91-day 2011-09-13
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2006-02-22 to 2006-03-28 V034 3E 91-day 2014-07-22
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA09, GLA11 2006-02-22 to 2006-03-28 V033 3E 91-day 2011-09-20
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2006-05-24 to 2006-06-26 V034 3F 91-day 2014-07-23
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA09, GLA11 2006-05-24 to 2006-06-26 V033 3F 91-day 2011-09-22
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2006-10-25 to 2006-11-27 V034 3G 91-day 2014-07-25
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA09, GLA11 2006-10-25 to 2006-11-27 V033 3G 91-day 2011-09-28
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2007-03-12 to 2007-04-14 V034 3H 91-day 2014-07-31
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA09, GLA11 2007-03-12 to 2007-04-14 V033 3H 91-day 2011-10-07
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2007-10-02 to 2007-11-05 V034 3I 91-day 2014-08-04
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA09, GLA11 2007-10-02 to 2007-11-05 V033 3I 91-day 2011-10-13
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2008-02-17 to 2008-03-21 V034 3J 91-day 2014-08-05
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA11 2008-02-17 to 2008-03-21 V033 3J 91-day 2011-10-18
34 GLA05, GLA06, GLA12, GLA13, GLA14, GLA15 2008-10-04 to 2008-10-19 V034 3K 91-day 2014-08-06
33 GLA01, GLA02, GLA03, GLA04, GLA07, GLA11 2008-10-04 to 2008-10-19 V033 3K 91-day 2011-10-26

* The ECS Version column refers to the number at the end of the product name when ordering products through the REVERB tool. Example: "GLAS/ICESat L2 Global Antarctic and Greenland Ice Sheet Altimetry Data V033."