Abstract
CR Climate Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials CR 68:169-182 (2016) - DOI: https://doi.org/10.3354/cr01388 Contribution to the CR Special: 'CLARIS-La Plata Basin: climate variability and uncertainties' Changes in precipitation over the La Plata Basin, projected by CLARIS-LPB regional models Iracema Fonseca de Albuquerque Cavalcanti*, Virginia Piccinini Silveira Center of Weather Forecasting and Climate Studies/National Institute for Space Research (CPTEC/INPE), Rodovia Presidente Dutra, Km 40, CEP: 12630-000, Cachoeira Paulista, SP, Brazil *Corresponding author: iracema.cavalcanti@cptec.inpe.br ABSTRACT: The La Plata Basin (LPB) is an important region for social and economic sectors of South America, mainly as a source of water and for agriculture. Regional models are used to analyze changes in precipitation over South America in order to provide more details of the projected changes in specific regions. Results of regional models from the CLARIS-LPB project are analyzed to assess changes and uncertainties in future projections for the LPB compared to the base period. Results from several models are taken into account in order to assess uncertainties. The models agree in projecting more precipitation in the whole basin and in an increased frequency of extreme wet austral summers. The majority of models agree in projections of drier conditions in the upper LPB and an increase in the frequency of extreme dry austral winters and springs. However, in the lower LPB the projections indicate an increase in the frequency of extreme wet winters and springs. In austral autumn the uncertainties are high in the upper LPB. The uncertainties are low regarding increases in the frequency of rainy days in the middle and lower LPB and in the maximum number of consecutive dry days in the upper LPB. The projected patterns of austral summer anomaly precipitation variability obtained from empirical orthogonal function analysis display the same dipole between southern LPB and the South Atlantic Convergence Zone as in the base period, but increased anomalies in the northern center. In the austral winter the only anomaly signal simulated in the base period remains in the future projections, but the maximum variability is displaced southwards. KEY WORDS: Precipitation extremes · Regional models · La Plata Basin · Climate change · Frequency of extremes · Precipitation variability · Precipitation indices Full text in pdf format PreviousNextCite this article as: Cavalcanti IFA, Silveira VP (2016) Changes in precipitation over the La Plata Basin, projected by CLARIS-LPB regional models. Clim Res 68:169-182. https://doi.org/10.3354/cr01388 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in CR Vol. 68, No. 2-3. Online publication date: May 04, 2016 Print ISSN: 0936-577X; Online ISSN: 1616-1572 Copyright © 2016 Inter-Research.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
