Hydrometeorological droughts in the Miño-Limia-Sil hydrographic demarcation (northwestern Iberian Peninsula): the role of atmospheric drivers
Drought is one of the world's primary natural hazards because of its environmental, economic, and social impacts. Therefore, monitoring and prediction for small regions, countries, or whole continents are challenging. In this work, the meteorological droughts affecting the Miño–Limia–Sil hydrog...
Published in: | Natural Hazards and Earth System Sciences |
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Natural Hazards and Earth System Science
2020
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Online Access: | http://hdl.handle.net/11093/3622 https://doi.org/10.5194/nhess-20-1805-2020 https://nhess.copernicus.org/articles/20/1805/2020/ |
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ftunivvigo:oai:www.investigo.biblioteca.uvigo.es:11093/3622 2023-05-15T15:12:08+02:00 Hydrometeorological droughts in the Miño-Limia-Sil hydrographic demarcation (northwestern Iberian Peninsula): the role of atmospheric drivers Sorí Gómez, Rogert Vázquez Domínguez, Marta Stojanovic , Milica Nieto Muñiz, Raquel Olalla Liberato, Margarida L.R. Gimeno Presa, Luis 2020-06-26 http://hdl.handle.net/11093/3622 https://doi.org/10.5194/nhess-20-1805-2020 https://nhess.copernicus.org/articles/20/1805/2020/ eng eng Natural Hazards and Earth System Science Física aplicada EphysLab nfo:eu-repo/grantAgreement/AEI//RTI2018-095772-B-I00/ES/ANALISIS LAGRANGIANO DEL IMPACTO EN EL CICLO HIDROLOGICO GLOBAL DE LOS PRINCIPALES MECANISMOS DE TRANSPORTE DE HUMEDAD ATMOSFERICA https://creativecommons.org/licenses/by/4.0/ Natural Hazards and Earth System Science, 20(6): 1805-1832 (2020) 16849981 http://hdl.handle.net/11093/3622 doi:10.5194/nhess-20-1805-2020 https://nhess.copernicus.org/articles/20/1805/2020/ Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ openAccess 2510.07 Oceanografía Física article 2020 ftunivvigo https://doi.org/10.5194/nhess-20-1805-2020 2023-04-11T23:24:14Z Drought is one of the world's primary natural hazards because of its environmental, economic, and social impacts. Therefore, monitoring and prediction for small regions, countries, or whole continents are challenging. In this work, the meteorological droughts affecting the Miño–Limia–Sil hydrographic demarcation in the northwestern Iberian Peninsula during the period of 1980–2017 were identified. For this purpose and to assess the combined effects of temperature and precipitation on drought conditions, the 1-month standardized precipitation evapotranspiration index (SPEI1) was utilized. Some of the most severe episodes occurred during June 2016–January 2017, September 2011–March 2012, and December 2014–August 2015. An empirical-orthogonal-function analysis revealed that the spatial variability of the SPEI1 shows strong homogeneity in the region, and the drought phenomenon consequently behaves in the same way. Particular emphasis was given to investigating atmospheric circulation as a driver of different drought conditions. To this aim, a daily weather type classification based on the Lamb weather type (LWT) classification was utilized for the entire Iberian Peninsula. Results showed that atmospheric circulation from the southwest, west, and northwest are directly related to wet conditions in the Miño–Limia–Sil hydrographic demarcation during the entire hydrological year. Contrastingly, weather types imposing atmospheric circulation from the northeast, east, and southeast are best associated with dry conditions. Anomalies of the integrated vertical flow of humidity and their divergence for the onset, peak, and termination of the 10 most severe drought episodes also confirmed these results. In this sense, the major atmospheric teleconnection patterns related to dry and wet conditions were the Arctic Oscillation, Scandinavian pattern, and North Atlantic Oscillation. Hydrological drought investigated through the standardized runoff index was closely related to dry and wet conditions revealed by the SPEI at shorter ... Article in Journal/Newspaper Arctic North Atlantic North Atlantic oscillation University of Vigo: Investigo (Repositorio Institucional de la Universidade de Vigo) Arctic Natural Hazards and Earth System Sciences 20 6 1805 1832 |
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Open Polar |
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University of Vigo: Investigo (Repositorio Institucional de la Universidade de Vigo) |
op_collection_id |
ftunivvigo |
language |
English |
topic |
2510.07 Oceanografía Física |
spellingShingle |
2510.07 Oceanografía Física Sorí Gómez, Rogert Vázquez Domínguez, Marta Stojanovic , Milica Nieto Muñiz, Raquel Olalla Liberato, Margarida L.R. Gimeno Presa, Luis Hydrometeorological droughts in the Miño-Limia-Sil hydrographic demarcation (northwestern Iberian Peninsula): the role of atmospheric drivers |
topic_facet |
2510.07 Oceanografía Física |
description |
Drought is one of the world's primary natural hazards because of its environmental, economic, and social impacts. Therefore, monitoring and prediction for small regions, countries, or whole continents are challenging. In this work, the meteorological droughts affecting the Miño–Limia–Sil hydrographic demarcation in the northwestern Iberian Peninsula during the period of 1980–2017 were identified. For this purpose and to assess the combined effects of temperature and precipitation on drought conditions, the 1-month standardized precipitation evapotranspiration index (SPEI1) was utilized. Some of the most severe episodes occurred during June 2016–January 2017, September 2011–March 2012, and December 2014–August 2015. An empirical-orthogonal-function analysis revealed that the spatial variability of the SPEI1 shows strong homogeneity in the region, and the drought phenomenon consequently behaves in the same way. Particular emphasis was given to investigating atmospheric circulation as a driver of different drought conditions. To this aim, a daily weather type classification based on the Lamb weather type (LWT) classification was utilized for the entire Iberian Peninsula. Results showed that atmospheric circulation from the southwest, west, and northwest are directly related to wet conditions in the Miño–Limia–Sil hydrographic demarcation during the entire hydrological year. Contrastingly, weather types imposing atmospheric circulation from the northeast, east, and southeast are best associated with dry conditions. Anomalies of the integrated vertical flow of humidity and their divergence for the onset, peak, and termination of the 10 most severe drought episodes also confirmed these results. In this sense, the major atmospheric teleconnection patterns related to dry and wet conditions were the Arctic Oscillation, Scandinavian pattern, and North Atlantic Oscillation. Hydrological drought investigated through the standardized runoff index was closely related to dry and wet conditions revealed by the SPEI at shorter ... |
format |
Article in Journal/Newspaper |
author |
Sorí Gómez, Rogert Vázquez Domínguez, Marta Stojanovic , Milica Nieto Muñiz, Raquel Olalla Liberato, Margarida L.R. Gimeno Presa, Luis |
author_facet |
Sorí Gómez, Rogert Vázquez Domínguez, Marta Stojanovic , Milica Nieto Muñiz, Raquel Olalla Liberato, Margarida L.R. Gimeno Presa, Luis |
author_sort |
Sorí Gómez, Rogert |
title |
Hydrometeorological droughts in the Miño-Limia-Sil hydrographic demarcation (northwestern Iberian Peninsula): the role of atmospheric drivers |
title_short |
Hydrometeorological droughts in the Miño-Limia-Sil hydrographic demarcation (northwestern Iberian Peninsula): the role of atmospheric drivers |
title_full |
Hydrometeorological droughts in the Miño-Limia-Sil hydrographic demarcation (northwestern Iberian Peninsula): the role of atmospheric drivers |
title_fullStr |
Hydrometeorological droughts in the Miño-Limia-Sil hydrographic demarcation (northwestern Iberian Peninsula): the role of atmospheric drivers |
title_full_unstemmed |
Hydrometeorological droughts in the Miño-Limia-Sil hydrographic demarcation (northwestern Iberian Peninsula): the role of atmospheric drivers |
title_sort |
hydrometeorological droughts in the miño-limia-sil hydrographic demarcation (northwestern iberian peninsula): the role of atmospheric drivers |
publisher |
Natural Hazards and Earth System Science |
publishDate |
2020 |
url |
http://hdl.handle.net/11093/3622 https://doi.org/10.5194/nhess-20-1805-2020 https://nhess.copernicus.org/articles/20/1805/2020/ |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic North Atlantic North Atlantic oscillation |
genre_facet |
Arctic North Atlantic North Atlantic oscillation |
op_relation |
nfo:eu-repo/grantAgreement/AEI//RTI2018-095772-B-I00/ES/ANALISIS LAGRANGIANO DEL IMPACTO EN EL CICLO HIDROLOGICO GLOBAL DE LOS PRINCIPALES MECANISMOS DE TRANSPORTE DE HUMEDAD ATMOSFERICA https://creativecommons.org/licenses/by/4.0/ Natural Hazards and Earth System Science, 20(6): 1805-1832 (2020) 16849981 http://hdl.handle.net/11093/3622 doi:10.5194/nhess-20-1805-2020 https://nhess.copernicus.org/articles/20/1805/2020/ |
op_rights |
Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ openAccess |
op_doi |
https://doi.org/10.5194/nhess-20-1805-2020 |
container_title |
Natural Hazards and Earth System Sciences |
container_volume |
20 |
container_issue |
6 |
container_start_page |
1805 |
op_container_end_page |
1832 |
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1766342862125924352 |