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
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
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

Data Set Citation
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
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
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
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
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...

Data Center Personnel
Name: SERDAR S. MANIZADE
Phone: 757-824-1025
Fax: 757-824-1036
Email: Serdar.S.Manizade at nasa.gov
Contact Address:
NASA
Wallops Flight Facility
Mailstop 614.W
City: Wallops Island
Province or State: VA
Postal Code: 23337
Country: USA


Personnel
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: 2012-01-30

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