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Active layer thermal regime in two climatically contrasted sites of the Antarctic Peninsula region

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dc.contributor.authorHrbáček, F.
dc.contributor.authorOliva, M.
dc.contributor.authorLaska, K.
dc.contributor.authorRuiz-Fernández, J.
dc.contributor.authorDe Pablo, M. A.
dc.contributor.authorVieira, Goncalo
dc.contributor.authorRamos, M.
dc.contributor.authorNývlt, D.
dc.date.accessioned2017-06-23T11:06:58Z
dc.date.available2017-06-23T11:06:58Z
dc.date.issued2016
dc.description.abstractPermafrost controls geomorphic processes in ice-free areas of the Antarctic Peninsula (AP) region. Future climate trends will promote significant changes of the active layer regime and permafrost distribution, and therefore a better characterization of present-day state is needed. With this purpose, this research focuses on Ulu Peninsula (James Ross Island) and Byers Peninsula (Livingston Island), located in the area of continuous and discontinuous permafrost in the eastern and western sides of the AP, respectively. Air and ground temperatures in as low as 80 cm below surface of the ground were monitored between January and December 2014. There is a high correlation between air temperatures on both sites (r=0.74). The mean annual temperature in Ulu Peninsula was -7.9 ºC, while in Byers Peninsula was -2.6 ºC. The lower air temperatures in Ulu Peninsula are also reflected in ground temperatures, which were between 4.9 (5 cm) and 5.9 ºC (75/80 cm) lower. The maximum active layer thickness observed during the study period was 52 cm in Ulu Peninsula and 85 cm in Byers Peninsula. Besides climate, soil characteristics, topography and snow cover are the main factors controlling the ground thermal regime in both areas.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationHrbáček, F., Oliva, M., Laska, K., Ruiz-Fernández, J., Pablo, M. de, Vieira, G., Ramos, M., & Nývlt, D. (2016). Active layer thermal regime in two climatically contrasted sites of the Antarctic Peninsula region. Cuadernos de Investigación Geográfica, 42(2), 457-474. http://dx.doi.org/10.18172/cig.2915pt_PT
dc.identifier.doi10.18172/cig.2915pt_PT
dc.identifier.issn0211-6820
dc.identifier.urihttp://hdl.handle.net/10451/28154
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherUniversidad de La Riojapt_PT
dc.subjectAntarctic Peninsulapt_PT
dc.subjectJames Ross Islandpt_PT
dc.subjectLivingston Islandpt_PT
dc.subjectactive layerpt_PT
dc.subjectair and ground temperaturespt_PT
dc.titleActive layer thermal regime in two climatically contrasted sites of the Antarctic Peninsula regionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage474pt_PT
oaire.citation.issue2pt_PT
oaire.citation.startPage457pt_PT
oaire.citation.titleCuadernos de Investigación Geográficapt_PT
oaire.citation.volume42pt_PT
person.familyNameOliva
person.familyNameBrito Guapo Teles Vieira
person.familyNameRamos
person.givenNameMarc
person.givenNameGonçalo
person.givenNameMiguel
person.identifierG-5958-2010
person.identifier.ciencia-id5510-AC71-085A
person.identifier.ciencia-id2519-6583-CAEA
person.identifier.orcid0000-0001-6521-6388
person.identifier.orcid0000-0001-7611-3464
person.identifier.orcid0000-0003-3648-6818
person.identifier.ridK-5423-2014
person.identifier.ridK-2230-2014
person.identifier.scopus-author-id35225198700
person.identifier.scopus-author-id7005863976
person.identifier.scopus-author-id8676487200
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationd416bf65-77f6-488e-b275-5fbb257df6d4
relation.isAuthorOfPublication7039fbb2-e1f8-4c3e-80f1-603b12d33c1c
relation.isAuthorOfPublicationa0544f42-b78e-4fd4-9204-f6acfa4e1e9d
relation.isAuthorOfPublication.latestForDiscoveryd416bf65-77f6-488e-b275-5fbb257df6d4

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