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Statements

Subject Item
n2:RIV%2F61989100%3A27350%2F10%3A86080249%21RIV12-MSM-27350___
rdf:type
n15:Vysledek skos:Concept
dcterms:description
The abilities of InSAR processing techniques to detect and monitor subsidence of mining areas were already proved in several works, e.g. of Dr. Perski that used them in Poland. As an ESA project of VSB-TU Ostrava using data from ERS 1,2 and Envisat ASAR, the InSAR has been applied also for the Northern Moravian OKR region in Czech Republic, a region with a long black coal mining history. Mining activities in this area have caused damages and destructions of many buildings, tramlines etc. The problem is still actual, even that only 4 mines are active, since 2007. Via the InSAR processing, an evolution of subsidence during last 10 years is monitored using the Doris software. Due to highly decorrelated interferograms created from newer data (since 2001), the actual state is hardly interpretable though. The critical subsiding objects were detected by pointwise multitemporal InSAR techniques (MTInSAR) – the permanent scatterers and small baselines methods using the StaMPS software. The results were compared with the in-situ levelling revealing that the estimated rate of subsidence was underestimated. Only the ERS-2 data from period 1999-2000 were successfully used in these advanced InSAR techniques to achieve some reasonable results. Because of gyroscopes failure of ERS-2, the data since January 2001 couldn't be processed successfully by StaMPS due to big differences in the Doppler centroid frequencies of each images - an abortive result of a small baselines method attempt can be presented. Because of used longwall mining method, that evokes spatial movement of subsidence epicenters in time, a longer time period of dataset usable in MT-InSAR would decrease the processing merit (the character of subsidence in the area is not pointwise in longer time period). This project will continue with a processing of newer datasets to achieve a complete overview of terrain changes in the mining area during the last decade The abilities of InSAR processing techniques to detect and monitor subsidence of mining areas were already proved in several works, e.g. of Dr. Perski that used them in Poland. As an ESA project of VSB-TU Ostrava using data from ERS 1,2 and Envisat ASAR, the InSAR has been applied also for the Northern Moravian OKR region in Czech Republic, a region with a long black coal mining history. Mining activities in this area have caused damages and destructions of many buildings, tramlines etc. The problem is still actual, even that only 4 mines are active, since 2007. Via the InSAR processing, an evolution of subsidence during last 10 years is monitored using the Doris software. Due to highly decorrelated interferograms created from newer data (since 2001), the actual state is hardly interpretable though. The critical subsiding objects were detected by pointwise multitemporal InSAR techniques (MTInSAR) – the permanent scatterers and small baselines methods using the StaMPS software. The results were compared with the in-situ levelling revealing that the estimated rate of subsidence was underestimated. Only the ERS-2 data from period 1999-2000 were successfully used in these advanced InSAR techniques to achieve some reasonable results. Because of gyroscopes failure of ERS-2, the data since January 2001 couldn't be processed successfully by StaMPS due to big differences in the Doppler centroid frequencies of each images - an abortive result of a small baselines method attempt can be presented. Because of used longwall mining method, that evokes spatial movement of subsidence epicenters in time, a longer time period of dataset usable in MT-InSAR would decrease the processing merit (the character of subsidence in the area is not pointwise in longer time period). This project will continue with a processing of newer datasets to achieve a complete overview of terrain changes in the mining area during the last decade
dcterms:title
Monitoring of subsidence of mining area in Northern Moravia by radar interferometry techniques Monitoring of subsidence of mining area in Northern Moravia by radar interferometry techniques
skos:prefLabel
Monitoring of subsidence of mining area in Northern Moravia by radar interferometry techniques Monitoring of subsidence of mining area in Northern Moravia by radar interferometry techniques
skos:notation
RIV/61989100:27350/10:86080249!RIV12-MSM-27350___
n3:aktivita
n16:S
n3:aktivity
S
n3:dodaniDat
n5:2012
n3:domaciTvurceVysledku
n10:5576237
n3:druhVysledku
n11:D
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
272494
n3:idVysledku
RIV/61989100:27350/10:86080249
n3:jazykVysledku
n12:eng
n3:klicovaSlova
mining; subsidence; interferometry; InSAR; radar
n3:klicoveSlovo
n4:InSAR n4:radar n4:subsidence n4:mining n4:interferometry
n3:kontrolniKodProRIV
[AD492E860CC8]
n3:mistoKonaniAkce
Petrohrad
n3:mistoVydani
Petrohrad
n3:nazevZdroje
International Forum-Competition of Young Researchers %22Topical Issues of Subsoil Usage%22
n3:obor
n7:DH
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:rokUplatneniVysledku
n5:2010
n3:tvurceVysledku
Lazecký, Milan
n3:typAkce
n6:WRD
n3:zahajeniAkce
2010-04-21+02:00
s:numberOfPages
3
n20:hasPublisher
Saint-Petersburg State Mining University
n18:isbn
978-5-94211-447-3
n17:organizacniJednotka
27350