Accuracy of Digital Terrain Models for the Mt. Everest Region Based on Corona and Cartosat-1 Data

Tino Pieczonka; Tobias Bolch; Manfred F. Buchroithner

Accuracy of Digital Terrain Models for the Mt. Everest Region Based on Corona and Cartosat-1 Data

Tino Pieczonka, Tobias Bolch, Manfred F. Buchroithner

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

Digital terrain models (DTM) are an important source for the detection of areas which are susceptible for natural hazards. In order to exploit the potential of stereo satellite imagery for time series analysis, addressing registration and elevation errors is a crucial topic. For our analysis we used different spaceborne multitemporal stereoscopic images - Corona (1962 and 1970) and Cartosat-1 (2007). The Cartosat-1 DTM showed the highest absolute accuracy (less than 20 m), whereas the older Corona DTM exposed the highest RMSz error. Due to differing acquisition techniques DTMs of the same area will never be identical. Therefore, we propose a relative vertical accuracy assessment with the Cartosat-1 DTM as master DTM. A comparison between the reference and input DTMs revealed inaccuracies, which were addressed by convenient statistical parameters and adjusted by means of trend surfaces. To eliminate outliers the one and a half time interquartile range was calculated.

Original language	English
Title of host publication	Proceedings of ESA Living Planet Symposium
Pages	195
Volume	686
Publication status	Published - 1 Dec 2010

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http://adsabs.harvard.edu/abs/2010ESASP.686E.195P

Cite this

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title = "Accuracy of Digital Terrain Models for the Mt. Everest Region Based on Corona and Cartosat-1 Data",

abstract = "Digital terrain models (DTM) are an important source for the detection of areas which are susceptible for natural hazards. In order to exploit the potential of stereo satellite imagery for time series analysis, addressing registration and elevation errors is a crucial topic. For our analysis we used different spaceborne multitemporal stereoscopic images - Corona (1962 and 1970) and Cartosat-1 (2007). The Cartosat-1 DTM showed the highest absolute accuracy (less than 20 m), whereas the older Corona DTM exposed the highest RMSz error. Due to differing acquisition techniques DTMs of the same area will never be identical. Therefore, we propose a relative vertical accuracy assessment with the Cartosat-1 DTM as master DTM. A comparison between the reference and input DTMs revealed inaccuracies, which were addressed by convenient statistical parameters and adjusted by means of trend surfaces. To eliminate outliers the one and a half time interquartile range was calculated.",

author = "Tino Pieczonka and Tobias Bolch and Buchroithner, {Manfred F.}",

note = "Proceedings of ESA Living Planet Symposium, held on 28 June - 2 July 2010 at Bergen in Norway. Edited by H. Lacoste-Francis. ISBN 978-92-9221-250-6. ESA SP-686, 2010",

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language = "English",

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T1 - Accuracy of Digital Terrain Models for the Mt. Everest Region Based on Corona and Cartosat-1 Data

AU - Pieczonka, Tino

AU - Bolch, Tobias

AU - Buchroithner, Manfred F.

N1 - Proceedings of ESA Living Planet Symposium, held on 28 June - 2 July 2010 at Bergen in Norway. Edited by H. Lacoste-Francis. ISBN 978-92-9221-250-6. ESA SP-686, 2010

PY - 2010/12/1

Y1 - 2010/12/1

N2 - Digital terrain models (DTM) are an important source for the detection of areas which are susceptible for natural hazards. In order to exploit the potential of stereo satellite imagery for time series analysis, addressing registration and elevation errors is a crucial topic. For our analysis we used different spaceborne multitemporal stereoscopic images - Corona (1962 and 1970) and Cartosat-1 (2007). The Cartosat-1 DTM showed the highest absolute accuracy (less than 20 m), whereas the older Corona DTM exposed the highest RMSz error. Due to differing acquisition techniques DTMs of the same area will never be identical. Therefore, we propose a relative vertical accuracy assessment with the Cartosat-1 DTM as master DTM. A comparison between the reference and input DTMs revealed inaccuracies, which were addressed by convenient statistical parameters and adjusted by means of trend surfaces. To eliminate outliers the one and a half time interquartile range was calculated.

AB - Digital terrain models (DTM) are an important source for the detection of areas which are susceptible for natural hazards. In order to exploit the potential of stereo satellite imagery for time series analysis, addressing registration and elevation errors is a crucial topic. For our analysis we used different spaceborne multitemporal stereoscopic images - Corona (1962 and 1970) and Cartosat-1 (2007). The Cartosat-1 DTM showed the highest absolute accuracy (less than 20 m), whereas the older Corona DTM exposed the highest RMSz error. Due to differing acquisition techniques DTMs of the same area will never be identical. Therefore, we propose a relative vertical accuracy assessment with the Cartosat-1 DTM as master DTM. A comparison between the reference and input DTMs revealed inaccuracies, which were addressed by convenient statistical parameters and adjusted by means of trend surfaces. To eliminate outliers the one and a half time interquartile range was calculated.

M3 - Chapter

VL - 686

SP - 195

BT - Proceedings of ESA Living Planet Symposium

ER -

Accuracy of Digital Terrain Models for the Mt. Everest Region Based on Corona and Cartosat-1 Data

Abstract

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