Tuesday, December 11, 2007

Scientists - contacts + Data = ICESat

Esoteric Agenda
A challenge to global warming as a untruth
original source

http://oiswww.eumetsat.org/VLab/cgi/view.pl?format=short&section=Useful%20Links%20to%20Live%20DataVL Resource Library - Useful Links to Live Data

The MY NASA DATA Live Access Server (LAS) is now available to create your own microsets for your class or your interests. The LAS contains over 128 parameters in atmospheric and earth science from five NASA scientific projects.


Digital rendering of ICESat ICESat
ICESat (Ice, Cloud,and land Elevation Satellite) is the benchmark Earth Observing System mission for measuring ice sheet mass balance, cloud and aerosol heights, as well as land topography and vegetation characteristics. The ICESat mission will provide multi-year elevation data needed to determine ice sheet mass balance as well as cloud property information, especially for stratospheric clouds common over polar areas. It will also provide topography and vegetation data around the globe, in addition to the polar-specific coverage over the Greenland and Antarctic ice sheets.


About the Branch: About Home

Cryospheric research within the Branch addresses the physics of ice sheets and glaciers, sea ice, snow on ice and land, and their roles in the global climate system. Laboratory technology efforts develop new approaches to remote sensing measurements of critical physical processes. Previous Laboratory research, which led to the TOPEX/Poseidon mission, has now led also to Goddard leadership of the ICESat/GLAS altimeter—including present Laboratory support of GLAS data processing—plus ice sheet altimetry, the Mars Orbiting Laser Altimeter (MOLA), and our strong airborne ice topography validation program. We expect these activities to continue.

Despite problems with the instrument, ICESat has produced stunning results that extend well beyond the planned polar ice sheet program goals to include sea ice measurements and new applications to Earth topology and even land water run-off and forest height measurements. For the Laboratory, Goddard and NASA, this is an on-going development of highest priority with broad, across-the-board application for Earth science needs and we expect Laboratory staff to assist with a long-lifetime, advanced-laser ICESat follow-on mission proposal.

Jay Zwally - Senior Research Scientisthttp://neptune.gsfc.nasa.gov/csb/personnel/index.php?page=profile&pers_id=10

Phone: 301-614-5643
Fax: 301-614-5644

Email: E-mail Jay Zwally

Cryospheric Sciences Branch
Code 614.1
NASA Goddard Space Flight Center
Greenbelt, Maryland USA 20771

His recent research includes leading a comprehensive analysis of the mass balance of the Greenland and Antarctic ice sheets and ice shelves, the discovery of the melt-acceleration effect on the flow of the Greenland ice sheet, and the first comprehensive mapping of sea ice freeboard and thickness distributions.

Since 1979, he has been a leading scientist promoting satellite laser altimetry for ice sheet mass balance studies, leading to the launch of the Ice Cloud and Land Elevation Satellite (ICESat) in 2003. Currently, he is the ICESat Project Scientist and a member of the science teams for the Geoscience Laser Altimeter System (GLAS), the Mars Orbiting Laser Altimeter (MOLA), and ENVISAT and CRYOSAT Calibration/Validation.


ICESat elevationa dn cloud Illustration.

ICESat data are distributed by the National Snow and Ice Data Center (NSIDC). GLAS produces 16 data products including Levels 1A, 1B, and 2 laser altimetry and atmospheric lidar data. Visit this website...

The Geoscience Laser Altimeter System (GLAS) is the sole instrument on the Ice, Cloud, and land Elevation Satellite (ICESat). The main objective of the ICESat mission is to measure ice sheet elevations and changes in elevation through time. Secondary objectives include measurement of cloud and aerosol height profiles, land elevation and vegetation cover, and sea ice thickness. ICESat will enable scientists to study the Earth's climate and, ultimately, predict how ice sheets and sea level will respond to future climate change.

ICESat has a near-circular and near-polar 91-day orbit with a 33-day repeat cycle, at an altitude of approximately 600 km, providing global coverage between 86°N and 86°S.

The National Snow and Ice Data Center (NSIDC) archives and distributes 15 products, including Levels 1A, 1B, and 2 laser altimetry and atmospheric lidar data. The initial data stream is approximately 20 GB per day.



ICESat elevationa dn cloud Illustration.

This figure illustrates ice sheet elevation and cloud data from ICESat's GLAS on its first day of operation February 20, 2003. For more information on this image, and to view more images, click on the picture or follow this link...

See Also

Related Data Sets

Hydrospheric and Biospheric Sciences Laboratory
614.1 Cryospheric Sciences Branch 614.1 Cryospheric Sciences Branch
614.2 Ocean Sciences Branch 614.2 Ocean Sciences Branch
614.3 Hydrological Sciences Branch 614.3 Hydrological Sciences Branch
614.4 Biospheric Sciences Branch 614.4 Biospheric Sciences Branch
614.5 Terrestrial Information Systems Branch 614.5 Terrestrial Information Systems Branch
614.6 Instrumentation Sciences Branch 614.6 Instrumentation Sciences Branch

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