Servicios Personalizados
Revista
Articulo
Indicadores
- Citado por SciELO
- Accesos
Links relacionados
- Citado por Google
- Similares en SciELO
- Similares en Google
Compartir
DYNA
versión impresa ISSN 0012-7353versión On-line ISSN 2346-2183
Resumen
VEGA-VIVIESCAS, Carolina y RODRIGUEZ-S., Erasmo A.. Evaluation of reanalysis data in the study of meteorological and hydrological droughts in the Magdalena-Cauca river basin, Colombia. Dyna rev.fac.nac.minas [online]. 2019, vol.86, n.211, pp.268-277. ISSN 0012-7353. https://doi.org/10.15446/dyna.v86n211.80530.
Droughts are a natural phenomenon of water deficit and represent one of the most dangerous natural hazards to human activities; accordingly, its understanding and monitoring are vital. For this purpose, long historical series of precipitation and evapotranspiration are considered; however, the sources of this observed information on land are usually limited spatially and temporally. The use of complementary sources of information, such as reanalysis, is appropriate in areas with scarce information. Thus, we have evaluated the use of the reanalysis databases of the eartH2Observe project (WFDEI & MSWEP) in the Magdalena-Cauca river basin in Colombia, through the calculation of three drought indicators (SPI, SPEI & WCI). The indices calculated with the in-situ data identified ten drought events of great affectation in the basin. By applying statistical and a Bootstrap uncertainty analysis, we evaluated the performance of the reanalysis, finding that the use of the MSWEP precipitation product has a good potential for the analysis of droughts in Colombia.
Palabras clave : Earth2Observe; meteorological and hydrological droughts; MSWEP; SPEI; SPI; WCI; WFDEI.