DocumentCode
1898161
Title
Characteristics of ASTER GDEM version 2
Author
Tachikawa, Tetsushi ; Hato, Masami ; Kaku, Manabu ; Iwasaki, Akira
fYear
2011
fDate
24-29 July 2011
Firstpage
3657
Lastpage
3660
Abstract
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) was released to the public in My 2009. The GDEM version 2, currently under development, is reproduced using an updated algorithm and contains new ASTER data observed after September 2008. Validation study of the trial and beta version of GDEM version 2 was carried out to investigate its characteristics such as geolocation error, elevation error and horizontal resolution. The results of the study confirmed that elevation offset and horizontal resolution will be greatly improved in version 2 and the enhanced horizontal resolution will serve to reduce the standard deviation of elevation and geolocation error.
Keywords
radiometers; ASTER GDEM version 2; advanced spaceborne thermal emission; elevation error; geolocation error; horizontal resolution; reflection radiometer global digital elevation model; Correlation; Data analysis; Geology; Lakes; NASA; Stacking; Tiles; ASTER; DEM; GDEM;
fLanguage
English
Publisher
ieee
Conference_Titel
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location
Vancouver, BC
ISSN
2153-6996
Print_ISBN
978-1-4577-1003-2
Type
conf
DOI
10.1109/IGARSS.2011.6050017
Filename
6050017
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