Statistical analysis of the long-range transport of the 2015 Calbuco volcanic plume from ground-based and space-borne observations
| العنوان: | Statistical analysis of the long-range transport of the 2015 Calbuco volcanic plume from ground-based and space-borne observations |
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| المؤلفون: | Bègue, Nelson, Shikwambana, Lerato, Bencherif, Hassan, Pallotta, Juan, Sivakumar, Venkataraman, Wolfram, Elian, Mbatha, Nkanyiso, Orte, Facundo, Du Preez, David Jean, Ranaivombola, Marion, Piketh, Stuart, Formenti, Paola |
| المساهمون: | Laboratoire de l'Atmosphère et des Cyclones (LACy), Météo France-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS), South African National Space Agency (SANSA), University of KwaZulu-Natal (UKZN), Centro de Investigaciones en Láseres y Aplicaciones [Buenos Aires] (CEILAP), Consejo Nacional de Investigaciones Científicas y Técnicas [Buenos Aires] (CONICET)-Instituto de Investigaciones Científicas y Técnicas para la Defensa (CITEDEF), University of ZuluLand, University of Pretoria [South Africa], Unit for Environmental Sciences and Management, North-West University [South Aftrica] (NWU), Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), The authors acknowledge the South African–French PROTEA programme (project no. 42470VA) and CNRS-NRF LIA ARSAIO (Atmospheric Research in Southern Africa and Indian Ocean) for supporting the research activities. This work was supported by the French–Argentine ECOS-Sud A16U01 project and the Université de la Réunion through the federation Observatoire des Milieux Naturels et des Changements Globaux (OMNCG) of the OSU-R (Observatoire des Sciences de l'Univers – La Reunion)., Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Centre National de la Recherche Scientifique (CNRS)-Météo-France, School of Chemistry and Physics [Durban], University of KwaZulu-Natal [Durban, Afrique du Sud] (UKZN), Departement of Geography [UniZulu], Department of Geography, Geoinformatics and Meteorology [Pretoria], North-West University [Potchefstroom] (NWU), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Institut Pierre-Simon-Laplace (IPSL (FR_636)), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales [Toulouse] (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), This work was supported by the French–Argentine ECOS-Sud A16U01 project and the Université de la Réunion through the federation Observatoire des Milieux Naturels et des Changements Globaux (OMNCG) of the OSU-R (Observatoire des Sciences de l'Univers – La Reunion)., Centre National de la Recherche Scientifique (CNRS)-Université de La Réunion (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Météo France |
| المصدر: | Annales Geophysicae Annales Geophysicae, European Geosciences Union, 2020, 38, pp.395-420. ⟨10.5194/angeo-38-395-2020⟩ Annales Geophysicae, 2020, 38 (2), pp.395-420. ⟨10.5194/angeo-38-395-2020⟩ Annales Geophysicae, European Geosciences Union, 2020, 38 (2), pp.395-420. ⟨10.5194/angeo-38-395-2020⟩ CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| بيانات النشر: | HAL CCSD, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | purl.org/becyt/ford/1 [https], [SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere, trasnporte, purl.org/becyt/ford/1.5 [https], cenizas, aerosoles |
| الوصف: | This study investigates the influence of the 2015 Calbuco eruption (41.2∘ S, 72.4∘ W; Chile) on the total columnar aerosol optical properties over the Southern Hemisphere. The well-known technic of sun photometry was applied for the investigation of the transport and spatio-temporal evolution of the optical properties of the volcanic plume. The CIMEL sun photometer measurements performed at six South American and three African sites were statistically analysed. This study involves the use of the satellite observations and a back-trajectory model. The passage of the Calbuco plume is statistically detectable in the aerosol optical depth (AOD) observations obtained from sun photometer and MODIS observations. This statistical detection confirms that the majority of the plume was transported over the northeastern parts of South America and reached the South African region 1 week after the eruption. The plume impacted the southern parts of South America to a lesser extent. The highest AOD anomalies were observed over the northeastern parts of South America. Over the South African sites, the AOD anomalies induced by the spread of the plume were quite homogeneously distributed between the east and west coasts. The optical characteristics of the plume near the source region were consistent with an ash-bearing plume. Conversely, sites further from the Calbuco volcano were influenced by ash-free plume. The optical properties discussed in this paper will be used as inputs for numerical models for further investigation of the ageing of the Calbuco plume in a forthcoming study. Fil: Bègue, Nelson. Université de la Réunion; Francia. Centre National de la Recherche Scientifique; Francia Fil: Shikwambana, Lerato. University of Kwazulu Natal; Sudáfrica. South African National Space Agency; Sudáfrica Fil: Bencherif, Hassan. Université de la Réunion; Francia. University of Kwazulu Natal; Sudáfrica Fil: Pallotta, Juan Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina Fil: Sivakumar, Venkataraman. University of Kwazulu Natal; Sudáfrica Fil: Wolfram, Elian Augusto. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina Fil: Mbatha, Nkanyiso. University Of Zululand; Sudáfrica Fil: Orte, Facundo. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Investigación y Desarrollo Estratégico para la Defensa. Ministerio de Defensa. Unidad de Investigación y Desarrollo Estratégico para la Defensa; Argentina Fil: Jean Du Preez, David. Université de la Réunion; Francia. University of Pretoria; Sudáfrica Fil: Ranaivombola, Marion. Université de la Réunion; Francia Fil: Piketh, Stuart. North-west University; Sudáfrica Fil: Formenti, Paola. Universite de Paris; Francia |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 0992-7689 1432-0576 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::dde5057faf711ce1284c4782cc3f1bf5Test https://hal.archives-ouvertes.fr/hal-03005690Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.dedup.wf.001..dde5057faf711ce1284c4782cc3f1bf5 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 09927689 14320576 |
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