Publicação
Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas
| Resumo: | Low-land permafrost areas are subject to intense freeze-thaw cycles and characterized by remarkable surface displacement. We used Sentinel-1 SAR interferometry (InSAR) in order to analyse the summer surface displacement over four spots in the Arctic and Antarctica since 2015. Choosing floodplain or outcrop areas as the reference for the InSAR relative deformation measurements, we found maximum subsidence of about 3 to 10 cm during the thawing season with generally high spatial variability. Sentinel-1 time-series of interferograms with 6–12 day time intervals highlight that subsidence is often occurring rather quickly within roughly one month in early summer. Intercomparison of summer subsidence from Sentinel-1 in 2017 with TerraSAR-X in 2013 over part of the Lena River Delta (Russia) shows a high spatial agreement between both SAR systems. A comparison with in-situ measurements for the summer of 2014 over the Lena River Delta indicates a pronounced downward movement of several centimetres in both cases but does not reveal a spatial correspondence between InSAR and local in-situ measurements. For the reconstruction of longer time-series of deformation, yearly Sentinel-1 interferograms from the end of the summer were considered. However, in order to infer an effective subsidence of the surface through melting of excess ice layers over multi-annual scales with Sentinel-1, a longer observation time period is necessary. |
|---|---|
| Autores principais: | Strozzi, Tazio |
| Outros Autores: | Antonova, Sofia; Günther, Frank; Mätzler, Eva; Vieira, Gonçalo; Wegmüller, Urs; Westermann, Sebastian; Bartsch, Annett |
| Assunto: | Permafrost Arctic Antarctica Subsidence InSAR Sentinel-1 |
| Ano: | 2018 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1865920783403974656 |
|---|---|
| author | Strozzi, Tazio |
| author2 | Antonova, Sofia Günther, Frank Mätzler, Eva Vieira, Gonçalo Wegmüller, Urs Westermann, Sebastian Bartsch, Annett |
| author2_role | author author author author author author author |
| author_facet | Strozzi, Tazio Strozzi, Tazio Antonova, Sofia Günther, Frank Mätzler, Eva Vieira, Gonçalo Wegmüller, Urs Westermann, Sebastian Bartsch, Annett Antonova, Sofia Günther, Frank Mätzler, Eva Vieira, Gonçalo Wegmüller, Urs Westermann, Sebastian Bartsch, Annett |
| author_role | author |
| contributor_name_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_str | [{\"Person.name\":\"Strozzi, Tazio\"},{\"Person.name\":\"Antonova, Sofia\"},{\"Person.name\":\"Günther, Frank\"},{\"Person.name\":\"Mätzler, Eva\"},{\"Person.name\":\"Vieira, Gonçalo\",\"Person.identifier.orcid\":\"0000-0001-7611-3464\"},{\"Person.name\":\"Wegmüller, Urs\"},{\"Person.name\":\"Westermann, Sebastian\"},{\"Person.name\":\"Bartsch, Annett\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Strozzi, Tazio Antonova, Sofia Günther, Frank Mätzler, Eva Vieira, Gonçalo Wegmüller, Urs Westermann, Sebastian Bartsch, Annett |
| datacite.date.Accepted.fl_str_mv | 2018-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2019-07-16T11:55:14Z |
| datacite.date.embargoed.fl_str_mv | 2019-07-16T11:55:14Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Permafrost Arctic Antarctica Subsidence InSAR Sentinel-1 |
| datacite.titles.title.fl_str_mv | Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas |
| dc.contributor.none.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Strozzi, Tazio Antonova, Sofia Günther, Frank Mätzler, Eva Vieira, Gonçalo Wegmüller, Urs Westermann, Sebastian Bartsch, Annett |
| dc.date.Accepted.fl_str_mv | 2018-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2019-07-16T11:55:14Z |
| dc.date.embargoed.fl_str_mv | 2019-07-16T11:55:14Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10451/39123 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | MDPI |
| dc.rights.cclincense.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Permafrost Arctic Antarctica Subsidence InSAR Sentinel-1 |
| dc.title.fl_str_mv | Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Low-land permafrost areas are subject to intense freeze-thaw cycles and characterized by remarkable surface displacement. We used Sentinel-1 SAR interferometry (InSAR) in order to analyse the summer surface displacement over four spots in the Arctic and Antarctica since 2015. Choosing floodplain or outcrop areas as the reference for the InSAR relative deformation measurements, we found maximum subsidence of about 3 to 10 cm during the thawing season with generally high spatial variability. Sentinel-1 time-series of interferograms with 6–12 day time intervals highlight that subsidence is often occurring rather quickly within roughly one month in early summer. Intercomparison of summer subsidence from Sentinel-1 in 2017 with TerraSAR-X in 2013 over part of the Lena River Delta (Russia) shows a high spatial agreement between both SAR systems. A comparison with in-situ measurements for the summer of 2014 over the Lena River Delta indicates a pronounced downward movement of several centimetres in both cases but does not reveal a spatial correspondence between InSAR and local in-situ measurements. For the reconstruction of longer time-series of deformation, yearly Sentinel-1 interferograms from the end of the summer were considered. However, in order to infer an effective subsidence of the surface through melting of excess ice layers over multi-annual scales with Sentinel-1, a longer observation time period is necessary. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/ed3349e9-1088-422a-be25-f1635def62b3/download |
| id | ul_330c50cffc7bb3b5f1eda7db223d4800 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10451/39123 |
| instacron_str | ul |
| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | eng |
| network_acronym_str | ul |
| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10451/39123 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Strozzi, Tazio Antonova, Sofia Günther, Frank Mätzler, Eva Vieira, Gonçalo Vieira, Gonçalo https://www.ciencia-id.pt/2519-6583-CAEA 2519-6583-CAEA http://orcid.org/0000-0001-7611-3464 0000-0001-7611-3464 Wegmüller, Urs Westermann, Sebastian Bartsch, Annett |
| publishDate | 2018 |
| publisher.none.fl_str_mv | MDPI |
| reponame_str | Repositório da Universidade de Lisboa |
| repository_id_str | urn:repositoryAcronym:ul |
| service_str_mv | urn:repositoryAcronym:ul |
| spelling | engMDPIpt_PTLow-land permafrost areas are subject to intense freeze-thaw cycles and characterized by remarkable surface displacement. We used Sentinel-1 SAR interferometry (InSAR) in order to analyse the summer surface displacement over four spots in the Arctic and Antarctica since 2015. Choosing floodplain or outcrop areas as the reference for the InSAR relative deformation measurements, we found maximum subsidence of about 3 to 10 cm during the thawing season with generally high spatial variability. Sentinel-1 time-series of interferograms with 6–12 day time intervals highlight that subsidence is often occurring rather quickly within roughly one month in early summer. Intercomparison of summer subsidence from Sentinel-1 in 2017 with TerraSAR-X in 2013 over part of the Lena River Delta (Russia) shows a high spatial agreement between both SAR systems. A comparison with in-situ measurements for the summer of 2014 over the Lena River Delta indicates a pronounced downward movement of several centimetres in both cases but does not reveal a spatial correspondence between InSAR and local in-situ measurements. For the reconstruction of longer time-series of deformation, yearly Sentinel-1 interferograms from the end of the summer were considered. However, in order to infer an effective subsidence of the surface through melting of excess ice layers over multi-annual scales with Sentinel-1, a longer observation time period is necessary.application/pdfpt_PTSentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areasStrozzi, TazioAntonova, SofiaGünther, FrankMätzler, EvaPersonalVieira, GonçaloDSpacehttp://dspace.org/items/7039fbb2-e1f8-4c3e-80f1-603b12d33c1cDSpacehttp://dspace.org/items/7039fbb2-e1f8-4c3e-80f1-603b12d33c1cBrito Guapo Teles VieiraGonçaloCiência IDhttps://www.ciencia-id.pt2519-6583-CAEAORCIDhttp://orcid.org0000-0001-7611-3464Scopus Author IDhttps://www.scopus.com7005863976Wegmüller, UrsWestermann, SebastianBartsch, AnnettHostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptISSNIsPartOf2072-4292DOIIsPartOf10.3390/rs100913602019-07-16T11:55:14Z20182018-01-01T00:00:00ZHandlehttp://hdl.handle.net/10451/39123http://purl.org/coar/access_right/c_abf2open accessPermafrostArcticAntarcticaSubsidenceInSARSentinel-117071367 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal article2018http://creativecommons.org/licenses/by/4.0/http://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/ed3349e9-1088-422a-be25-f1635def62b3/downloadRemote Sensing1091360 |
| spellingShingle | Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas Strozzi, Tazio Permafrost Arctic Antarctica Subsidence InSAR Sentinel-1 Strozzi, Tazio Permafrost Arctic Antarctica Subsidence InSAR Sentinel-1 |
| status | SINGLETON |
| subject.fl_str_mv | Permafrost Arctic Antarctica Subsidence InSAR Sentinel-1 |
| title | Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas |
| title_full | Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas |
| title_fullStr | Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas |
| title_full_unstemmed | Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas |
| title_short | Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas |
| title_sort | Sentinel-1 SAR interferometry for surface deformation monitoring in low-land permafrost areas |
| topic | Permafrost Arctic Antarctica Subsidence InSAR Sentinel-1 |
| topic_facet | Permafrost Arctic Antarctica Subsidence InSAR Sentinel-1 |
| url | http://hdl.handle.net/10451/39123 |
| visible | 1 |