Effect of southern climate modes and variations in river discharge on lake surface area in Patagonia
Multiple regressions, wavelet spectra, and Fourier spectra were employed to analyze fluctuations in the surface areas of 2 Patagonian lakes during 1998–2015 and relate these to fluctuations in precipitation, evaporation, river discharge, and 2 southern climate modes, the Antarctic Oscillation (AAO)...
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ftconicet:oai:ri.conicet.gov.ar:11336/90484 2023-10-09T21:45:18+02:00 Effect of southern climate modes and variations in river discharge on lake surface area in Patagonia Scordo, Facundo Perillo, Gerardo Miguel E. Piccolo, Maria Cintia application/pdf http://hdl.handle.net/11336/90484 eng eng Taylor and Francis Ltd. info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/20442041.2018.1487118 info:eu-repo/semantics/altIdentifier/doi/10.1080/20442041.2018.1487118 http://hdl.handle.net/11336/90484 Scordo, Facundo; Perillo, Gerardo Miguel E.; Piccolo, Maria Cintia; Effect of southern climate modes and variations in river discharge on lake surface area in Patagonia; Taylor and Francis Ltd.; Inland Waters; 8; 3; 29-6-2018; 341-355 2044-2041 2044-205X CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ AAO LAKE SURFACE AREA PATAGONIAN PLAINS REGION RIVER DISCHARGE SOI https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1080/20442041.2018.1487118 2023-09-24T20:15:48Z Multiple regressions, wavelet spectra, and Fourier spectra were employed to analyze fluctuations in the surface areas of 2 Patagonian lakes during 1998–2015 and relate these to fluctuations in precipitation, evaporation, river discharge, and 2 southern climate modes, the Antarctic Oscillation (AAO) and El Niño Southern Oscillation, expressed in terms of the Southern Oscillation Index (SOI). Multiple regression analysis suggested that discharge was the primary driver of interannual lake area variations. Cross-spectrum analysis demonstrated a maximum significant correlation between river discharge and both AAO and SOI indices at annual and interannual timescales (2–3 yr). During 1998–2015, the annual discharge signal was related to both the AAO annual and every 2 year signals. When a strong La Niña (positive SOI) event occurred, however, river discharge was significantly reduced, resulting in a decrease in lake surface area. Fil: Scordo, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Geografía y Turismo; Argentina Fil: Perillo, Gerardo Miguel E. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina Fil: Piccolo, Maria Cintia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Geografía y Turismo; Argentina Article in Journal/Newspaper Antarc* Antarctic CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic The Antarctic Patagonia Argentino Argentina Soi ENVELOPE(30.704,30.704,66.481,66.481) Inland Waters 8 3 341 355 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
AAO LAKE SURFACE AREA PATAGONIAN PLAINS REGION RIVER DISCHARGE SOI https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
AAO LAKE SURFACE AREA PATAGONIAN PLAINS REGION RIVER DISCHARGE SOI https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Scordo, Facundo Perillo, Gerardo Miguel E. Piccolo, Maria Cintia Effect of southern climate modes and variations in river discharge on lake surface area in Patagonia |
topic_facet |
AAO LAKE SURFACE AREA PATAGONIAN PLAINS REGION RIVER DISCHARGE SOI https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Multiple regressions, wavelet spectra, and Fourier spectra were employed to analyze fluctuations in the surface areas of 2 Patagonian lakes during 1998–2015 and relate these to fluctuations in precipitation, evaporation, river discharge, and 2 southern climate modes, the Antarctic Oscillation (AAO) and El Niño Southern Oscillation, expressed in terms of the Southern Oscillation Index (SOI). Multiple regression analysis suggested that discharge was the primary driver of interannual lake area variations. Cross-spectrum analysis demonstrated a maximum significant correlation between river discharge and both AAO and SOI indices at annual and interannual timescales (2–3 yr). During 1998–2015, the annual discharge signal was related to both the AAO annual and every 2 year signals. When a strong La Niña (positive SOI) event occurred, however, river discharge was significantly reduced, resulting in a decrease in lake surface area. Fil: Scordo, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Geografía y Turismo; Argentina Fil: Perillo, Gerardo Miguel E. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Geología; Argentina Fil: Piccolo, Maria Cintia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina. Universidad Nacional del Sur. Departamento de Geografía y Turismo; Argentina |
format |
Article in Journal/Newspaper |
author |
Scordo, Facundo Perillo, Gerardo Miguel E. Piccolo, Maria Cintia |
author_facet |
Scordo, Facundo Perillo, Gerardo Miguel E. Piccolo, Maria Cintia |
author_sort |
Scordo, Facundo |
title |
Effect of southern climate modes and variations in river discharge on lake surface area in Patagonia |
title_short |
Effect of southern climate modes and variations in river discharge on lake surface area in Patagonia |
title_full |
Effect of southern climate modes and variations in river discharge on lake surface area in Patagonia |
title_fullStr |
Effect of southern climate modes and variations in river discharge on lake surface area in Patagonia |
title_full_unstemmed |
Effect of southern climate modes and variations in river discharge on lake surface area in Patagonia |
title_sort |
effect of southern climate modes and variations in river discharge on lake surface area in patagonia |
publisher |
Taylor and Francis Ltd. |
url |
http://hdl.handle.net/11336/90484 |
long_lat |
ENVELOPE(30.704,30.704,66.481,66.481) |
geographic |
Antarctic The Antarctic Patagonia Argentino Argentina Soi |
geographic_facet |
Antarctic The Antarctic Patagonia Argentino Argentina Soi |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/20442041.2018.1487118 info:eu-repo/semantics/altIdentifier/doi/10.1080/20442041.2018.1487118 http://hdl.handle.net/11336/90484 Scordo, Facundo; Perillo, Gerardo Miguel E.; Piccolo, Maria Cintia; Effect of southern climate modes and variations in river discharge on lake surface area in Patagonia; Taylor and Francis Ltd.; Inland Waters; 8; 3; 29-6-2018; 341-355 2044-2041 2044-205X CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1080/20442041.2018.1487118 |
container_title |
Inland Waters |
container_volume |
8 |
container_issue |
3 |
container_start_page |
341 |
op_container_end_page |
355 |
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1779317437464838144 |