header

Drought propagation in semi-arid river basins in Latin America: Lessons from Mexico to the Southern Cone

Año: 2018
Categoría: Cuenca del Maipo, Seguridad hídrica, Sequía

Autores: Oertel, M., Meza, F.J., Gironás, J., Scott, C; Rojas, F. Pineda, N.

Revista: Water (2018) 10 (11)

link a la publicación

Abstract

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-Tunuyán (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

Noticias

Francisco Meza, Académico y Fundador del Centro de Cambio Global UC se integra a la Academia Chilena de Ciencias Agronómicas

24-06-2019

La Academia Chilena de Ciencias Agronómicas (ACCA) incorporó este mes al investigador y docente de la Facultad de Agronomía e Ingeniería Forestal de la Universidad Católica Francisco Meza, por el...

Agenda