Multitemporal monitoring of Karviná subsidence troughs using Sentinel-1 and TerraSAR-X interferometry

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F17%3A00464854" target="_blank" >RIV/67985891:_____/17:00464854 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/17:10328534 RIV/61989100:27350/17:86098560 RIV/61989100:27740/17:86098560

Result on the web

<a href="http://dx.doi.org/10.13168/AGG.2016.0027" target="_blank" >http://dx.doi.org/10.13168/AGG.2016.0027</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.13168/AGG.2016.0027" target="_blank" >10.13168/AGG.2016.0027</a>

Result language

angličtina

Original language name

Multitemporal monitoring of Karviná subsidence troughs using Sentinel-1 and TerraSAR-X interferometry

Original language description

Satellite SAR interferometry (InSAR) allows to observe borders of subsidence troughs created in undermined areas. There is a possibility to evaluate a subsidence velocity in the accuracy of a mm/year for the stable reflectors of the radio signal, e.g. buildings. We apply Permanent Scatterers (PS) and Quasi-PS (QPS) techniques for monitoring of mine-caused subsidence in the Karvina area situated in the Czech part of Upper Silesian Basin. We use PS technique as effective for observation of displacements of built structures (e.g. buildings) and QPS for monitoring of spatio-temporal development of subsidence troughs. The results reveal information valuable for an identification of deviations from expected effects of mining activities on the land surface and for the infrastructure which are potentially affected by the subsidence. We perform the processing of Sentinel-1 and high resolution TerraSAR-X to find how the lower spatial resolution of Sentinel-1 SAR affects the reliability of results. The assets of these new sensors, especially the short revisit time, can overcome the basic limits of InSAR methods connected with temporal lags between available SAR images. In previous Karvina area datasets (ERS, Envisat, Alos satellites) the basic temporal step used to be around one month. During such temporal length significant changes occured in vegetation cover or in cultivated soil causing a loss of coherence of radar measurements. In addition to this, the amount of subsidence of Karvina troughs has often exceeded detection limits of the SAR systems. A significant increase of the reliability of evaluated subsidence also in areas with a moderate vegetation cover is expected with the launch of Sentinel-1B since the short-term interferograms would not be affected by a full decorrelation.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10508 - Physical geography

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta geodynamica et geomaterialia

ISSN

1214-9705

e-ISSN

—

Volume of the periodical

14

Issue of the periodical within the volume

1

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

7

Pages from-to

53-59

UT code for WoS article

000395939700004

EID of the result in the Scopus database

2-s2.0-85014642179