Repositorio Digital del IGP

Mostrar el registro sencillo del ítem

dc.contributor.author Espinoza Villar, Jhan Carlo
dc.contributor.author Ronchail, Josyane
dc.contributor.author Guyot, Jean Loup
dc.contributor.author Cochonneau, Gerard
dc.contributor.author Naziano, Filizola
dc.contributor.author Lavado, Waldo
dc.contributor.author Oliveira, Eurides de
dc.contributor.author Pombosa, Rodrigo
dc.contributor.author Vauchel, Philippe
dc.date.accessioned 2018-07-30T19:56:31Z
dc.date.available 2018-07-30T19:56:31Z
dc.date.issued 2008-12-04
dc.identifier.issn 1097-0088
dc.identifier.uri http://repositorio.igp.gob.pe/handle/IGP/2123
dc.description En: International Journal of Climatology, v. 29, n. 11, (September 2009), p. 1574-1594.
dc.description.abstract "Rainfall variability in the Amazon basin (AB) is analysed for the 1964–2003 period. It is based on 756 pluviometric stations distributed throughout the AB countries. For the first time it includes data from Bolivia, Peru, Ecuador, and Colombia. In particular, the recent availability of rainfall data from the Andean countries makes it possible to complete previous studies. The impact of mountain ranges on rainfall is pointed out. The highest rainfall in the AB is observed in low windward regions, and low rainfall is measured in leeward and elevated stations. Additionally, rainfall regimes are more diversified in the Andean regions than in the lowlands. Rainfall spatio‐temporal variability is studied based on a varimax‐rotated principal component analysis (PCA). Long‐term variability with a decreasing rainfall since the 1980s prevails in June–July–August (JJA) and September–October–November (SON). During the rainiest seasons, i.e. December–January–February (DJF) and March–April–May (MAM), the main variability is at decadal and interannual time scales. Interdecadal variability is related to long‐term changes in the Pacific Ocean, whereas decadal variability, opposing the northwest and the south of the AB, is associated with changes in the strength of the low‐level jet (LLJ) along the Andes. Interannual variability characterizes more specifically the northeast of the basin and the southern tropical Andes. It is related to El Niño‐Southern Oscillation (ENSO) and to the sea surface temperature (SST) gradient over the tropical Atlantic. Mean rainfall in the basin decreases during the 1975–2003 period at an annual rate estimated to be − 0.32%. Break tests show that this decrease has been particularly important since 1982. Further insights into this phenomenon will permit to identify the impact of climate on the hydrology of the AB. Copyright © 2008 Royal Meteorological Society" es_ES
dc.format application/pdf es_ES
dc.language.iso en es_ES
dc.publisher Instituto Geofísico del Perú 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--Amazonía es_ES
dc.subject Cuenca del río Amazonas--Clima es_ES
dc.subject Hidrología--Cuenca del Río Amazonas es_ES
dc.subject Variaciones estacionales es_ES
dc.subject Variabilidad de las precipitaciones--Región del río Amazonas es_ES
dc.subject Climatología es_ES
dc.subject Corriente El Niño--Perú es_ES
dc.subject Meteorología--Perú es_ES
dc.subject Datos pluviométricos--Perú--Amazonía es_ES
dc.title Spatio‐temporal rainfall variability in the Amazon basin countries (Brazil, Peru, Bolivia, Colombia, and Ecuador) es_ES
dc.type info:eu-repo/semantics/article es_ES
dc.subject.ocde Precipitación es_ES
dc.subject.ocde Hidrología es_ES
dc.subject.ocde Perú es_ES
dc.subject.ocde Cuencas fluviales es_ES
dc.subject.ocde Procesamiento de datos es_ES
dc.subject.ocde Región andina es_ES
dc.subject.ocde Influencia climática es_ES
dc.subject.ocde Meteorología es_ES
dc.identifier.journal International Journal of Climatology es_ES
dc.description.peer-review Por pares es_ES
dc.identifier.doi 10.1002/joc.1791 es_ES


Ficheros en el ítem

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem

Buscar en el Repositorio


Listar

Mi cuenta

Estadísticas