On the dynamic mechanisms of intense rainfall events in the central Andes of Peru, Mantaro valley
Descripción del Articulo
Present study comes under the project MAGNET-IGP: Strengthening the research line in physics and microphysics of the atmosphere (Agreement No 010-2017-FONDECYT) This work was done using instruments of the Laboratory of Physics, Microphysics and Radiation (LAMAR) and computational resources, HPC-Linu...
| Autores: | , , , , , , , , |
|---|---|
| Formato: | artículo |
| Fecha de Publicación: | 2021 |
| Institución: | Consejo Nacional de Ciencia Tecnología e Innovación |
| Repositorio: | CONCYTEC-Institucional |
| Lenguaje: | inglés |
| OAI Identifier: | oai:repositorio.concytec.gob.pe:20.500.12390/2941 |
| Enlace del recurso: | https://hdl.handle.net/20.500.12390/2941 https://doi.org/10.1016/j.atmosres.2020.105188 |
| Nivel de acceso: | acceso abierto |
| Materia: | Rainfall events Dynamic analysis Mantaro basin Model simulations Inertia gravity waves https://purl.org/pe-repo/ocde/ford#1.05.11 |
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CONCYTEC-Institucional |
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4689 |
| dc.title.none.fl_str_mv |
On the dynamic mechanisms of intense rainfall events in the central Andes of Peru, Mantaro valley |
| title |
On the dynamic mechanisms of intense rainfall events in the central Andes of Peru, Mantaro valley |
| spellingShingle |
On the dynamic mechanisms of intense rainfall events in the central Andes of Peru, Mantaro valley Luis Flores-Rojas, Jose Rainfall events Dynamic analysis Mantaro basin Model simulations Inertia gravity waves Inertia gravity waves https://purl.org/pe-repo/ocde/ford#1.05.11 |
| title_short |
On the dynamic mechanisms of intense rainfall events in the central Andes of Peru, Mantaro valley |
| title_full |
On the dynamic mechanisms of intense rainfall events in the central Andes of Peru, Mantaro valley |
| title_fullStr |
On the dynamic mechanisms of intense rainfall events in the central Andes of Peru, Mantaro valley |
| title_full_unstemmed |
On the dynamic mechanisms of intense rainfall events in the central Andes of Peru, Mantaro valley |
| title_sort |
On the dynamic mechanisms of intense rainfall events in the central Andes of Peru, Mantaro valley |
| author |
Luis Flores-Rojas, Jose |
| author_facet |
Luis Flores-Rojas, Jose |Moya-Alvarez, Aldo S. |Valdivia-Prado, Jairo M. |Pinas-Laura, Manuel |Kumar, Shailendra |Abi Karam, Hugo |Villalobos-Puma, Elver |Martinez-Castro, Daniel |Silva, Yamina |
| author_role |
author |
| author2 |
|Moya-Alvarez, Aldo S. |Valdivia-Prado, Jairo M. |Pinas-Laura, Manuel |Kumar, Shailendra |Abi Karam, Hugo |Villalobos-Puma, Elver |Martinez-Castro, Daniel |Silva, Yamina |
| author2_role |
author author author author author author author author |
| dc.contributor.author.fl_str_mv |
Luis Flores-Rojas, Jose |Moya-Alvarez, Aldo S. |Valdivia-Prado, Jairo M. |Pinas-Laura, Manuel |Kumar, Shailendra |Abi Karam, Hugo |Villalobos-Puma, Elver |Martinez-Castro, Daniel |Silva, Yamina |
| dc.subject.none.fl_str_mv |
Rainfall events |
| topic |
Rainfall events Dynamic analysis Mantaro basin Model simulations Inertia gravity waves Inertia gravity waves https://purl.org/pe-repo/ocde/ford#1.05.11 |
| dc.subject.es_PE.fl_str_mv |
Dynamic analysis Mantaro basin Model simulations Inertia gravity waves Inertia gravity waves |
| dc.subject.ocde.none.fl_str_mv |
https://purl.org/pe-repo/ocde/ford#1.05.11 |
| description |
Present study comes under the project MAGNET-IGP: Strengthening the research line in physics and microphysics of the atmosphere (Agreement No 010-2017-FONDECYT) This work was done using instruments of the Laboratory of Physics, Microphysics and Radiation (LAMAR) and computational resources, HPC-Linux -Cluster, from Laboratorio de Dinamica de Fluidos Geofisicos Computacionales at Instituto Geofisico del Peru (grants 101-2014-FONDECYT, SPIRALES2012 IRD-IGP, Manglares IGP-IDRC, PP068 program).We also thank Mr. Luis Suarez Salas for the support of LAMAR instruments. |
| publishDate |
2021 |
| dc.date.accessioned.none.fl_str_mv |
2024-05-30T23:13:38Z |
| dc.date.available.none.fl_str_mv |
2024-05-30T23:13:38Z |
| dc.date.issued.fl_str_mv |
2021 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.uri.none.fl_str_mv |
https://hdl.handle.net/20.500.12390/2941 |
| dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1016/j.atmosres.2020.105188 |
| url |
https://hdl.handle.net/20.500.12390/2941 https://doi.org/10.1016/j.atmosres.2020.105188 |
| dc.language.iso.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.ispartof.none.fl_str_mv |
ATMOSPHERIC RESEARCH |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
ELSEVIER SCIENCE INC |
| publisher.none.fl_str_mv |
ELSEVIER SCIENCE INC |
| dc.source.none.fl_str_mv |
reponame:CONCYTEC-Institucional instname:Consejo Nacional de Ciencia Tecnología e Innovación instacron:CONCYTEC |
| instname_str |
Consejo Nacional de Ciencia Tecnología e Innovación |
| instacron_str |
CONCYTEC |
| institution |
CONCYTEC |
| reponame_str |
CONCYTEC-Institucional |
| collection |
CONCYTEC-Institucional |
| repository.name.fl_str_mv |
Repositorio Institucional CONCYTEC |
| repository.mail.fl_str_mv |
repositorio@concytec.gob.pe |
| _version_ |
1839175383510941696 |
| spelling |
Publicationrp08281600rp08278600rp08284600rp08285600rp08283600rp08277600rp08282600rp08280600rp08279600Luis Flores-Rojas, Jose|Moya-Alvarez, Aldo S.|Valdivia-Prado, Jairo M.|Pinas-Laura, Manuel|Kumar, Shailendra|Abi Karam, Hugo|Villalobos-Puma, Elver|Martinez-Castro, Daniel|Silva, Yamina2024-05-30T23:13:38Z2024-05-30T23:13:38Z2021https://hdl.handle.net/20.500.12390/2941https://doi.org/10.1016/j.atmosres.2020.105188Present study comes under the project MAGNET-IGP: Strengthening the research line in physics and microphysics of the atmosphere (Agreement No 010-2017-FONDECYT) This work was done using instruments of the Laboratory of Physics, Microphysics and Radiation (LAMAR) and computational resources, HPC-Linux -Cluster, from Laboratorio de Dinamica de Fluidos Geofisicos Computacionales at Instituto Geofisico del Peru (grants 101-2014-FONDECYT, SPIRALES2012 IRD-IGP, Manglares IGP-IDRC, PP068 program).We also thank Mr. Luis Suarez Salas for the support of LAMAR instruments.The present study was aimed at analysing the main atmospheric dynamic mechanisms associated with the occurrence of intense rainfall events above the Huancayo observatory (12.05 degrees S, 75.32 degrees W, 3313 m asl) in the central Andes of Peru (Mantaro valley) from January 2018 to April 2019. To identify the rainfall events, we used a set of instruments from the laboratory of physics, microphysics and radiation (LAMAR) composed by in-situ pluviometric observations, satellite remote sensing data (GPM), Cloud Radar (MIRA-35c), Boundary Layer Tropospheric Radar (BLTR) and downscaling model simulations with WRF (resolutions: 18 km, 6 km and 2 km) and ARPS (0.5 km) models to analyse the dynamics of the atmosphere for the synoptic, meso and local processes that control the occurrence of these rainfall events. The results showed that all intense rainfall events are associated with the presence of thermal meso-scale circulations that transport moisture fluxes through passes with gentle slopes along both sides of the Andes. The easterly moisture fluxes come in from the South America Low Level Jet (SALLJ) and the westerly moisture fluxes from the Pacific Ocean. The arrival of these moisture flows to regions within the Mantaro valley depends on their coupling with the circulations at medium and high levels of the atmosphere. At the synoptic scale, the results show that the rainfall events can be separated into two groups: the first one associated with westerly circulations (WC) at the mid and upper levels of the atmosphere, generated by the weakening and eastern displacement of the anticyclonic Bolivian high-North east low (BH-NE) system, and the second associated with easterly circulations (EC) at the mid and upper levels of the atmosphere, generated by the intensification of the BH-NE system. The observed and simulated results showed that multicell convective systems of WC events are more extensive and deeper than EC events. This situation can be explained as the convergence of moisture fluxes from opposite directions occurred within the Mantaro basin for WC events. In contrast, for EC events, the convergence develops at the east Andes mountain range, following which the multicell storm system propagates westward, driven by easterly circulations. The EC events occur mostly in the summer months, while the WC events occur mostly in the autumn and spring months. Moreover, apparently the inertia gravity waves (IGWs) formed in the Amazon basin transport moisture and energy to the central Andes plateau and intensify the convection processes.Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - ConcytecengELSEVIER SCIENCE INCATMOSPHERIC RESEARCHinfo:eu-repo/semantics/openAccessRainfall eventsDynamic analysis-1Mantaro basin-1Model simulations-1Inertia gravity waves-1Inertia gravity waves-1https://purl.org/pe-repo/ocde/ford#1.05.11-1On the dynamic mechanisms of intense rainfall events in the central Andes of Peru, Mantaro valleyinfo:eu-repo/semantics/articlereponame:CONCYTEC-Institucionalinstname:Consejo Nacional de Ciencia Tecnología e Innovacióninstacron:CONCYTEC#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#20.500.12390/2941oai:repositorio.concytec.gob.pe:20.500.12390/29412024-05-30 15:52:21.54http://purl.org/coar/access_right/c_14cbinfo:eu-repo/semantics/closedAccessmetadata only accesshttps://repositorio.concytec.gob.peRepositorio Institucional CONCYTECrepositorio@concytec.gob.pe#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="572ee32c-13b4-4562-ba07-eef0b3bbbd25"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>On the dynamic mechanisms of intense rainfall events in the central Andes of Peru, Mantaro valley</Title> <PublishedIn> <Publication> <Title>ATMOSPHERIC RESEARCH</Title> </Publication> </PublishedIn> <PublicationDate>2021</PublicationDate> <DOI>https://doi.org/10.1016/j.atmosres.2020.105188</DOI> <Authors> <Author> <DisplayName>Luis Flores-Rojas, Jose</DisplayName> <Person id="rp08281" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>|Moya-Alvarez, Aldo S.</DisplayName> <Person id="rp08278" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>|Valdivia-Prado, Jairo M.</DisplayName> <Person id="rp08284" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>|Pinas-Laura, Manuel</DisplayName> <Person id="rp08285" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>|Kumar, Shailendra</DisplayName> <Person id="rp08283" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>|Abi Karam, Hugo</DisplayName> <Person id="rp08277" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>|Villalobos-Puma, Elver</DisplayName> <Person id="rp08282" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>|Martinez-Castro, Daniel</DisplayName> <Person id="rp08280" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>|Silva, Yamina</DisplayName> <Person id="rp08279" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>ELSEVIER SCIENCE INC</DisplayName> <OrgUnit /> </Publisher> </Publishers> <Keyword>Rainfall events</Keyword> <Keyword>Dynamic analysis</Keyword> <Keyword>Mantaro basin</Keyword> <Keyword>Model simulations</Keyword> <Keyword>Inertia gravity waves</Keyword> <Keyword>Inertia gravity waves</Keyword> <Abstract>The present study was aimed at analysing the main atmospheric dynamic mechanisms associated with the occurrence of intense rainfall events above the Huancayo observatory (12.05 degrees S, 75.32 degrees W, 3313 m asl) in the central Andes of Peru (Mantaro valley) from January 2018 to April 2019. To identify the rainfall events, we used a set of instruments from the laboratory of physics, microphysics and radiation (LAMAR) composed by in-situ pluviometric observations, satellite remote sensing data (GPM), Cloud Radar (MIRA-35c), Boundary Layer Tropospheric Radar (BLTR) and downscaling model simulations with WRF (resolutions: 18 km, 6 km and 2 km) and ARPS (0.5 km) models to analyse the dynamics of the atmosphere for the synoptic, meso and local processes that control the occurrence of these rainfall events. The results showed that all intense rainfall events are associated with the presence of thermal meso-scale circulations that transport moisture fluxes through passes with gentle slopes along both sides of the Andes. The easterly moisture fluxes come in from the South America Low Level Jet (SALLJ) and the westerly moisture fluxes from the Pacific Ocean. The arrival of these moisture flows to regions within the Mantaro valley depends on their coupling with the circulations at medium and high levels of the atmosphere. At the synoptic scale, the results show that the rainfall events can be separated into two groups: the first one associated with westerly circulations (WC) at the mid and upper levels of the atmosphere, generated by the weakening and eastern displacement of the anticyclonic Bolivian high-North east low (BH-NE) system, and the second associated with easterly circulations (EC) at the mid and upper levels of the atmosphere, generated by the intensification of the BH-NE system. The observed and simulated results showed that multicell convective systems of WC events are more extensive and deeper than EC events. This situation can be explained as the convergence of moisture fluxes from opposite directions occurred within the Mantaro basin for WC events. In contrast, for EC events, the convergence develops at the east Andes mountain range, following which the multicell storm system propagates westward, driven by easterly circulations. The EC events occur mostly in the summer months, while the WC events occur mostly in the autumn and spring months. Moreover, apparently the inertia gravity waves (IGWs) formed in the Amazon basin transport moisture and energy to the central Andes plateau and intensify the convection processes.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication> -1 |
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13.4481325 |
Nota importante:
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
