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dc.contributor.authorGimeno, Luis
dc.contributor.authorStohl, Andreas
dc.contributor.authorTrigo, Ricardo M.
dc.contributor.authorDominguez, Francina
dc.contributor.authorYoshimura, Kei
dc.contributor.authorYu, Lisan
dc.contributor.authorDrumond, Anita
dc.contributor.authorDurán Quesada, Ana María
dc.contributor.authorNieto, Raquel
dc.date.accessioned2015-04-20T22:31:26Z
dc.date.available2015-04-20T22:31:26Z
dc.date.issued2012-11-08
dc.identifier.citationhttp://onlinelibrary.wiley.com/doi/10.1029/2012RG000389/full#es_ES
dc.identifier.issn8755-1209
dc.identifier.urihttp://hdl.handle.net/10669/11396
dc.descriptionArtículo científico -- Universidad de Costa Rica, Centro de Investigaciones Geofísicas. 2012. Este documento es privado debido a limitaciones de derechos de autor.es_ES
dc.description.abstractThe most important sources of atmospheric moisture at the global scale are herein identified, both oceanic and terrestrial, and a characterization is made of how continental regions are influenced by water from different moisture source regions. The methods used to establish source-sink relationships of atmospheric water vapor are reviewed, and the advantages and caveats associated with each technique are discussed. The methods described include analytical and box models, numerical water vapor tracers, and physical water vapor tracers (isotopes). In particular, consideration is given to the wide range of recently developed Lagrangian techniques suitable both for evaluating the origin of water that falls during extreme precipitation events and for establishing climatologies of moisture source-sink relationships. As far as oceanic sources are concerned, the important role of the subtropical northern Atlantic Ocean provides moisture for precipitation to the largest continental area, extending from Mexico to parts of Eurasia, and even to the South American continent during the Northern Hemisphere winter. In contrast, the influence of the southern Indian Ocean and North Pacific Ocean sources extends only over smaller continental areas. The South Pacific and the Indian Ocean represent the principal source of moisture for both Australia and Indonesia. Some landmasses only receive moisture from the evaporation that occurs in the same hemisphere (e.g., northern Europe and eastern North America), while others receive moisture from both hemispheres with large seasonal variations (e.g., northern South America). The monsoonal regimes in India, tropical Africa, and North America are provided with moisture from a large number of regions, highlighting the complexities of the global patterns of precipitation. Some very important contributions are also seen from relatively small areas of ocean, such as the Mediterranean Basin (important for Europe and North Africa) and the Red Sea, which provides water for a large area between the Gulf of Guinea and Indochina (summer) and between the African Great Lakes and Asia (winter). The geographical regions of Eurasia, North and South America, and Africa, and also the internationally important basins of the Mississippi, Amazon, Congo, and Yangtze Rivers, are also considered, as is the importance of terrestrial sources in monsoonal regimes. The role of atmospheric rivers, and particularly their relationship with extreme events, is discussed. Droughts can be caused by the reduced supply of water vapor from oceanic moisture source regions. Some of the implications of climate change for the hydrological cycle are also reviewed, including changes in water vapor concentrations, precipitation, soil moisture, and aridity. It is important to achieve a combined diagnosis of moisture sources using all available information, including stable water isotope measurements. A summary is given of the major research questions that remain unanswered, including (1) the lack of a full understanding of how moisture sources influence precipitation isotopes; (2) the stationarity of moisture sources over long periods; (3) the way in which possible changes in intensity (where evaporation exceeds precipitation to a greater of lesser degree), and the locations of the sources, (could) affect the distribution of continental precipitation in a changing climate; and (4) the role played by the main modes of climate variability, such as the North Atlantic Oscillation or the El Niño–Southern Oscillation, in the variability of the moisture source regions, as well as a full evaluation of the moisture transported by low-level jets and atmospheric rivers.es_ES
dc.description.sponsorshipUniversidad de Costa Ricaes_ES
dc.language.isoen_USes_ES
dc.publisherAmerican Geophysical Union 50:1-41es_ES
dc.sourceReviews of Geophysics, 50:1-41es_ES
dc.subjectoceanic sourcees_ES
dc.subjectterrestrial sourcees_ES
dc.subjectclimate changees_ES
dc.subjectprecipitationes_ES
dc.titleOceanic and terrestrial sources of continental precipitationes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.typeArtículo científicoes_ES
dc.identifier.doi10.1029/2012RG000389
dc.description.procedenceUCR::Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigaciones Geofísicas (CIGEFI)es_ES


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