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Greenland Airborne Precision Elevation Survey (GRAPES) Data Collected by NASA's Airborne Topographic Mapper (ATM) Entry ID: NASA_WFF_OSB_ATM_GRAPES |
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Summary
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Abstract:
Ice sheet elevation data are collected over Greenland with NASA's Airborne Topographic Mapper (ATM). The data are known as the Greenland Airborne Precision Elevation Survey (GRAPES). The ATM is a laser altimeter flown on NASA aircraft. The Global Positioning System (GPS) of orbiting satellites is used to navigate the aircraft's autopilot in order to provide precise location information for repeat coverage. The data are collected yearly starting in 1991. The GRAPES data currently available include results from the 1993 mission, with other data to be included soon. Flight trajectory data are available for all years beginning with 1993. The data collected by ATM form baseline measurements of ice elevation of Greenland. The data will be used in conjunction with the future elevation measurements of the Geoscience Laser Altimeter System (GLAS) instrument onboard the ICESat satellite (to be launched in 2001). Changes in ice sheet elevation measurements provide a better understanding of glacial changes that may be due to global climate change. For more information, see http://atm.wff.nasa.gov/ [This summary was derived from the pages of the Observational Science Branch at NASA Wallops Flight Facility. The Observational Science Branch is a division of NASA's Goddard Space Flight Center Laboratory for Hydrospheric Processes.] |
Related URL
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Link:
VIEW PROJECT HOME PAGE
Description: NASA Hydrospheric and Biospheric Sciences Laboratory, NASA GSFC/WALLOPS Flight Facility Link: VIEW PROJECT HOME PAGE Description: NASA Airborne Topographic Mapper (ATM) |
Geographic Coverage
| N: 85.0 | S: 59.0 | E: -15.0 | W: -75.0 |
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Data Set Citation
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Dataset Originator/Creator:
Observational Science Branch, NASA Wallops Flight Facility
Dataset Title: Greenland Airborne Precision Elevation Survey (GRAPES) Data Collected by NASA's Airborne Topographic Mapper (ATM) Online Resource: http://atm.wff.nasa.gov/ |
Temporal Coverage
| Start Date: 1993-06-23 |
Location Keywords
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CONTINENT
> NORTH AMERICA
> GREENLAND
GEOGRAPHIC REGION > ARCTIC GEOGRAPHIC REGION > POLAR |
Science Keywords
| LAND SURFACE >TOPOGRAPHY >TOPOGRAPHICAL RELIEF [Definition] |
| LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION [Definition] |
| CRYOSPHERE >GLACIERS/ICE SHEETS >GLACIER ELEVATION/ICE SHEET ELEVATION [Definition] |
ISO Topic Category
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ELEVATION
GEOSCIENTIFIC INFORMATION INLAND WATERS |
Platform
| P-3B ORION >Lockheed P-3B Orion [Information] |
Instrument
| ALTIMETERS [Information] |
| ATM >Airborne Topographic Mapper [Information] |
Project
| PARCA >Program in Arctic Regional Climate Assessment [Information] |
Use Constraints
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The data are currently for the use of NASA researchers and should be considered preliminary. |
Keywords
| ICE ELEVATION |
Data Set Progress
| IN WORK |
Originating Center
| NASA/WFF/OSB |
Data Center
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Ocean Sciences, Hydrospheric and Biospheric Sciences Laboratory, Wallops Flight Facility, Goddard Space Flight Center, NASA
[Information]
Data Center URL: http://science.gsfc.nasa.gov/sed/index.cfm?fuseAction=home.main&&na...
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Personnel
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WILLIAM
B.
KRABILL Role: INVESTIGATOR Email: William.B.Krabill at nasa.gov Contact Address: National Aeronautics and Space Administration (NASA) Wallops Flight Facility Building N159 Room E201 Mailstop 972.0 City: Wallops Island Province or State: VA Postal Code: 23337 Country: USA |
Creation and Review Dates
Last DIF Revision Date:
2012-02-23
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