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dc.contributor.author Junquas, Clémentine
dc.contributor.author Takahashi, Ken
dc.contributor.author Condom, Thomas
dc.contributor.author Espinoza, Jhan Carlo
dc.contributor.author Chávez Jara, Steven Paul
dc.contributor.author Sicart, J. E.
dc.contributor.author Lebel, Thierry
dc.date.accessioned 2018-08-06T15:04:27Z
dc.date.available 2018-08-06T15:04:27Z
dc.date.issued 2017-08
dc.identifier.govdoc index-oti2018 (NB)
dc.identifier.issn 09307575
dc.identifier.uri http://repositorio.igp.gob.pe/handle/IGP/2259
dc.description En: Climate Dynamics, v. 50, n. 11-12, (August 2017) p. 3995-4017.
dc.description.abstract "In the tropical Andes, the identification of the present synoptic mechanisms associated with the diurnal cycle of precipitation and its interaction with orography is a key step to understand how the atmospheric circulation influences the patterns of precipitation variability on longer time-scales. In particular we aim to better understand the combination of the local and regional mechanisms controlling the diurnal cycle of summertime (DJF) precipitation in the Northern Central Andes (NCA) region of Southern Peru. A climatology of the diurnal cycle is obtained from 15 wet seasons (2000–2014) of 3-hourly TRMM-3B42 data (0.25° × 0.25°) and swath data from the TRMM-2A25 precipitation radar product (5 km × 5 km). The main findings are: (1) in the NCA region, the diurnal cycle shows a maximum precipitation occurring during the day (night) in the western (eastern) side of the Andes highlands, (2) in the valleys of the Cuzco region and in the Amazon slope of the Andes the maximum (minimum) precipitation occurs during the night (day). The WRF (Weather Research and Forecasting) regional atmospheric model is used to simulate the mean diurnal cycle in the NCA region for the same period at 27 km and 9 km horizontal grid spacing and 3-hourly output, and at 3 km only for the month of January 2010 in the Cuzco valleys. Sensitivity experiments were also performed to investigate the effect of the topography on the observed rainfall patterns. The model reproduces the main diurnal precipitation features. The main atmospheric processes identified are: (1) the presence of a regional-scale cyclonic circulation strengthening during the afternoon, (2) diurnal thermally driven circulations at local scale, including upslope (downslope) wind and moisture transport during the day (night), (3) channelization of the upslope moisture transport from the Amazon along the Apurimac valleys toward the western part of the cordillera." es_ES
dc.format application/pdf es_ES
dc.language.iso eng es_ES
dc.publisher Instituto Geofísico del Perú es_ES
dc.relation.uri https://link.springer.com/article/10.1007/s00382-017-3858-8 es_ES
dc.rights info:eu-repo/semantics/restrictedAccess es_ES
dc.rights.uri info:eu-repo/semantics/restrictedAccess es_ES
dc.source Repositorio institucional - IGP es_ES
dc.subject Lluvia y precipitación--Perú--Variaciones diurnas es_ES
dc.subject Andes--Clima es_ES
dc.subject Predicción meteorológica--Perú es_ES
dc.subject Predicción meteorológica--Área del Pacífico es_ES
dc.subject Física atmosférica es_ES
dc.subject Estudios hidrológicos--Perú es_ES
dc.subject Hidrología--Sensoramiento remoto es_ES
dc.title Understanding the influence of orography on the precipitation diurnal cycle and the associated atmospheric processes in the central Andes es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Precipitación es_ES
dc.subject.ocde Atmósfera es_ES
dc.subject.ocde Región andina es_ES
dc.subject.ocde Hidrología es_ES
dc.subject.ocde Perú es_ES
dc.subject.ocde Física es_ES
dc.subject.ocde Variaciones estacionales es_ES
dc.subject.ocde Hidrometría es_ES
dc.identifier.journal Climate Dynamics es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1007/s00382-017-3858-8 es_ES

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