Deformation analysis in landslides NE Bulgaria using GNSS data complemented by InSAR for better interpretation results

[EN] The Bulgarian northern Black Sea coast is affected by many landslides. Landslide research is important as these phenomena cause loss of human lives and infrastructural damages. For this study a landslide area called "Dalgiya yar" was selected. The objective of this study is to...

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Bibliographic Details
Authors: Atanasova, Mila, Atanasova-Zlatareva, Mila, Nikolov, Hristo, Georgiev, Ivan, Ivanov, Anton
Format: book part
Publication Date:2023
Country:España
Institution:Universitat Politècnica de València (UPV)
Repository:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Language:English
OAI Identifier:oai:riunet.upv.es:10251/192311
Online Access:https://riunet.upv.es/handle/10251/192311
Access Level:Open access
Keyword:Monitoring landslide
Geodynamic GNSS network
Deformation analysis
DinSAR
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spelling Deformation analysis in landslides NE Bulgaria using GNSS data complemented by InSAR for better interpretation resultsAtanasova, MilaAtanasova-Zlatareva, MilaNikolov, HristoGeorgiev, IvanIvanov, AntonMonitoring landslideGeodynamic GNSS networkDeformation analysisDinSAR[EN] The Bulgarian northern Black Sea coast is affected by many landslides. Landslide research is important as these phenomena cause loss of human lives and infrastructural damages. For this study a landslide area called "Dalgiya yar" was selected. The objective of this study is to provide solid grounds for monitoring the landslide processes using GNSS and SAR data. To achieve the set goals a geodynamic network was established. Those networks consist generally of two types of points – reference (located on geologically stable terrain) and survey points located within the landslide. The overall deformation analysis of the geodynamic networks is done after the third measurement cycle. The main approach to obtain the final results is based on determination of deformation components of spatially oriented triangles. For the studied period and for the mentioned area three main types of deformations have been determined by Finite Elements Method – station displacements, relative side deformations and relative principal deformations. It needs to be mentioned that due to peculiarities of the researched zone the condition that the final elements must to be configured approximately as equilateral triangles with approximately equal areas and not overlapping was not possible to be met. This is the reason to complement the GNNS results with such produced by DInSAR processing of Sentinel-1 data for the mentioned periods.This study was conducted with financial support of the Bulgarian National Science Fund under the Project No KP-06-OPR 06/114.12.2018, “Monitoring of landslide processes on the Northern Black Sea coast of Bulgaria through cooperate use of data from global navigation satellite systems and interferometric images from synthetic aperture radar”Editorial Universitat Politècnica de ValènciaBulgarian National Science FundRepositorio Institucional de la Universitat Politècnica de València Riunet20232023-01-27book parthttp://purl.org/coar/resource_type/c_3248VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/bookPartapplication/pdfhttps://riunet.upv.es/handle/10251/192311reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengBNSF BNSF KP-06-OPR 06open accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento - No comercial - Compartir igual (by-nc-sa) http://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/1923112026-06-13T07:49:27Z
dc.title.none.fl_str_mv Deformation analysis in landslides NE Bulgaria using GNSS data complemented by InSAR for better interpretation results
title Deformation analysis in landslides NE Bulgaria using GNSS data complemented by InSAR for better interpretation results
spellingShingle Deformation analysis in landslides NE Bulgaria using GNSS data complemented by InSAR for better interpretation results
Atanasova, Mila
Monitoring landslide
Geodynamic GNSS network
Deformation analysis
DinSAR
title_short Deformation analysis in landslides NE Bulgaria using GNSS data complemented by InSAR for better interpretation results
title_full Deformation analysis in landslides NE Bulgaria using GNSS data complemented by InSAR for better interpretation results
title_fullStr Deformation analysis in landslides NE Bulgaria using GNSS data complemented by InSAR for better interpretation results
title_full_unstemmed Deformation analysis in landslides NE Bulgaria using GNSS data complemented by InSAR for better interpretation results
title_sort Deformation analysis in landslides NE Bulgaria using GNSS data complemented by InSAR for better interpretation results
dc.creator.none.fl_str_mv Atanasova, Mila
Atanasova-Zlatareva, Mila
Nikolov, Hristo
Georgiev, Ivan
Ivanov, Anton
author Atanasova, Mila
author_facet Atanasova, Mila
Atanasova-Zlatareva, Mila
Nikolov, Hristo
Georgiev, Ivan
Ivanov, Anton
author_role author
author2 Atanasova-Zlatareva, Mila
Nikolov, Hristo
Georgiev, Ivan
Ivanov, Anton
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Bulgarian National Science Fund
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Monitoring landslide
Geodynamic GNSS network
Deformation analysis
DinSAR
topic Monitoring landslide
Geodynamic GNSS network
Deformation analysis
DinSAR
description [EN] The Bulgarian northern Black Sea coast is affected by many landslides. Landslide research is important as these phenomena cause loss of human lives and infrastructural damages. For this study a landslide area called "Dalgiya yar" was selected. The objective of this study is to provide solid grounds for monitoring the landslide processes using GNSS and SAR data. To achieve the set goals a geodynamic network was established. Those networks consist generally of two types of points – reference (located on geologically stable terrain) and survey points located within the landslide. The overall deformation analysis of the geodynamic networks is done after the third measurement cycle. The main approach to obtain the final results is based on determination of deformation components of spatially oriented triangles. For the studied period and for the mentioned area three main types of deformations have been determined by Finite Elements Method – station displacements, relative side deformations and relative principal deformations. It needs to be mentioned that due to peculiarities of the researched zone the condition that the final elements must to be configured approximately as equilateral triangles with approximately equal areas and not overlapping was not possible to be met. This is the reason to complement the GNNS results with such produced by DInSAR processing of Sentinel-1 data for the mentioned periods.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-01-27
dc.type.none.fl_str_mv book part
http://purl.org/coar/resource_type/c_3248
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/bookPart
format bookPart
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/192311
url https://riunet.upv.es/handle/10251/192311
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv BNSF BNSF KP-06-OPR 06
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Compartir igual (by-nc-sa)
http://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial - Compartir igual (by-nc-sa)
http://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Editorial Universitat Politècnica de València
publisher.none.fl_str_mv Editorial Universitat Politècnica de València
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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