Suchergebnisse

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Examines the effect of political change, reform, and modernization on drinking water policy at the state level; concludes that increased legitimacy, transparency, and better governance render more efficient service and encourages public support; 1990s; city of Mexicali, Mexico. Summary in English p. 500.

Detecting droughts as early as possible is important in avoiding negative impacts on economy, society, and environment. To improve drought monitoring, we studied drought propagation (i.e., the temporal manifestation of a precipitation deficit on soil moisture and streamflow). We used the Standardized Precipitation Evapotranspiration Index (SPEI), Standardized Streamflow Index (SSI), and Standardized Soil Moisture Index (SSMI) in three drought-prone regions: Sonora (Mexico), Maipo (Chile), and Mendoza-Tunuyan (Argentina) to study their temporal interdependence. For this evaluation we use precipitation, temperature, and streamflow data from gauges that are managed by governmental institutions, and satellite-based soil moisture from the ESA CCI SM v03.3 combined data set. Results confirm that effective drought monitoring should be carried out (1) at river-basin scale, (2) including several variables, and (3) considering hydro-meteorological processes from outside its boundaries. ; Becas Conicyt; Becas Conicyt, Programa de Formacion de Capital Humano Avanzado, Ministerio de Educacion de Chile; Inter-American Institute for Global Change Research (IAI) - US National Science Foundation [CRN3056, GEO-1128040]; Lloyd's Register Foundation (a charitable foundation helping to protect life and property by supporting engineering-related education, public engagement and the application of research) ; Open access journal ; This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.