DEM Production for Larsemann Hills Combining Cryosat-2 and Ground-based Elevation Data

XIAO Feng; LI Fei; ZHANG Shengkai; YUAN Lexian; ZHU Tingting

doi:10.13203/j.whugis20160011

Volume 42 Issue 10

Oct. 2017

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Geomatics and Information Science of Wuhan University > 2017 > 42(10): 1417-1422. > DOI: 10.13203/j.whugis20160011

XIAO Feng, LI Fei, ZHANG Shengkai, YUAN Lexian, ZHU Tingting. DEM Production for Larsemann Hills Combining Cryosat-2 and Ground-based Elevation Data[J]. Geomatics and Information Science of Wuhan University, 2017, 42(10): 1417-1422. DOI: 10.13203/j.whugis20160011

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DEM Production for Larsemann Hills Combining Cryosat-2 and Ground-based Elevation Data

XIAO Feng^{1, 2,},
LI Fei^{1, 2},
ZHANG Shengkai^{1, 2, ,},
YUAN Lexian^{1, 2},
ZHU Tingting³

1.
Chinese Antarctic Center of Surveying and Mapping, Wuhan University, Wuhan 430079, China
2.
Key Laboratory of Polar Surveying and Mapping, NASG, Wuhan University, Wuhan 430079, China
3.
State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan 430079, China

Funds:

The National Natural Science Foundation of China 41531069

The National Natural Science Foundation of China 41176173

the National Major Scientific Research Program 2012CB957701

the Chinese Polar Environment Comprehensive Investigation & Assessment Programme CHINARE2016

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Author Bio:
XIAO Feng, PhD scandidate, specialized in satellite altimetry application in polar region. E-mail: xiaofengcrazy@whu.edu.cn
Corresponding author:
ZHANG Shengkai, PhD, associate professor. E-mail:zskai@whu.edu.cn
Received Date: June 28, 2016
Published Date: October 04, 2017

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Abstract

Abstract

Larsemann Hills, located on the Ingrid Christensen Coast of Princess Elizabeth Land in East Antarctica, is an ideal area for Antarctic ice sheet and oceanographic studies. Digital elevation models are of importance to many geoscientific and environmental studies in Antarctic and due to relatively poor coverage by ground based surveys, the main data source for developing Antarctic DEMs is satellite altimetry. The new operating satellite-borne altimeter for ice applications is the ESA satellite CryoSat-2, launched in April 2010. Based on CryoSat-2 data collected during austral winter of 2013 and 2014 and ground based elevation points from China, India, and Australia, a new 200 m DEM for the Larsemann Hills, termed LA-DEM, was derived by the Ordinary Kriging method. The accuracy of LA-DEM was assessed by residual elevation points. The results show that the accuracy of LA-DEM is about 19.7 m, andbetter than four commonly used Antarctic DEMs.
- Antarctic,
- Larsemann Hills,
- digital elevation model,
- CryoSat-2,
- GPS

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