Inter-comparison and time series fusion of ascending and descending PSInSAR data for land subsidence monitoring

doi:10.6046/gtzyyg.2014.04.20

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Abstract A joint analysis of ascending and descending tracks of PSInSAR provides deformation measurements with average velocity and time series of each coherent target for the same deformation zone, which allows the inter-comparison of the velocity map and the fusion of deformation time series. In this paper, the authors present the method of PSInSAR measurement inter-comparison and time series fusion by using ascending and descending ENVISAT data acquired from 2006 to 2010 for the purpose of subsidence monitoring. The inter-comparison of subsidence velocity in ascending and descending tracks demonstrates that the precision is higher than 2 mm, indicating the accuracy of single track PSInSAR measurement for land subsidence monitoring. The fusion of ascending and descending deformation series of each coherent target enables a detailed analysis of temporal behaviors because it provides dense observations in time.

Keywords shadow detection HIS color space geometric details shadow compensation

TP79

Issue Date: 17 September 2014

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	WANG Bo
	ZHANG Yongjun
	CHEN Qi

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WANG Bo,ZHANG Yongjun,CHEN Qi. Inter-comparison and time series fusion of ascending and descending PSInSAR data for land subsidence monitoring[J]. REMOTE SENSING FOR LAND & RESOURCES, 2014, 26(4): 125-130.

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https://www.gtzyyg.com/EN/10.6046/gtzyyg.2014.04.20 OR https://www.gtzyyg.com/EN/Y2014/V26/I4/125

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