2024-03-29T05:53:27Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/819202020-01-28T15:48:54Zcom_10261_65com_10261_8col_10261_318
2013-09-12T10:12:55Z
urn:hdl:10261/81920
Assessing the capability of multi-scale drought datasets to quantify drought severity and to identify drought impacts: An example in the Ebro Basin
Morán-Tejeda, Enrique
Ceglar, Andrej
Medved-Cvikl, Barbara
Vicente Serrano, Sergio M.
López-Moreno, Juan I.
González-Hidalgo, José C.
Revuelto, Jesús
Lorenzo-Lacruz, Jorge
Camarero, Jesús Julio
Pasho, Edmond
Assessing the risk, the severity and the likely evolution of droughts are key tasks for improving preparedness of regions prone to drought conditions, and mitigation of drought consequences. The access to real-time and high-quality climatic information is essential for this purpose. Different climatic databases are being developed and made available on real time by climatic research institutions, but their capability for quantifying droughts characteristics including severity, or spatio-temporal variability, is uncertain given their low spatial resolution. In this study, we assessed the capability of three databases with contrasted spatial resolution for measuring spatial and temporal variability of drought occurrence. The standardized precipitation index, calculated for each database, showed that the low resolution datasets allow an acceptable measurement of the magnitude, intensity and duration of droughts, while failing mostly in detecting the spatial patterns of the specific drought episodes. Moreover, the capability of the datasets for assessing the impacts of droughts on surface hydrology and tree growth was examined. Results confirmed the usefulness of the drought index for assessing drought impacts on water resources and forest ecosystems even when low resolution databases are used. © 2012 Royal Meteorological Society.
2013-09-12T10:12:55Z
2013-09-12T10:12:55Z
2013
2013-09-12T10:12:55Z
artículo
International Journal of Climatology 33: 1884- 1897 (2013)
http://hdl.handle.net/10261/81920
10.1002/joc.3555
eng
http://dx.doi.org/10.1002/joc.3555
info:eu-repo/grantAgreement/EC/FP7/226487
openAccess
John Wiley & Sons