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2012

Development and Implementation of a monitoring and information system for increasing water use effiency in arid and semi-arid areas in Limarí, Central Chile

Chili

Titre : Development and Implementation of a monitoring and information system for increasing water use effiency in arid and semi-arid areas in Limarí, Central Chile

Pays : Chile

Durée : 2012-2014

Funded by : Federal Ministry of Education and Research (BMBF | Berlin, Germany)

Description du projet
The growing world population, the rapidly increasing demand for high quality food and for water for agriculture use, the need to secure the provision of drinking water demands innovative and holistic solutions and products to increase the water use efficiency.Especially in arid and semi-arid areas are these solutions required. Additional factors such as economic development, population growth and climate change deteriorate the situation. Therefore the longtermin, sustainable resource management at river basin level requires a complete , standardized and for all stuff members operable management system. Such complex challenges demand holistic and interdisciplinary solutions, which the WEIN-consortium develops and implements in the region in Limarí - Cental Chile.

Our aim is, to capture holistically the scarce water resources in order to control the water assignment for agriculture irrigation efficiently, on-demand and transparent. Shortly : We want to optimize water usage and ensure the agricultural production.The monitoring and information system is based on the optimized SEBA sensor systems which detects relevant climate and water runoff data. On this basis, the water availability is quantified and modeled on catchment level. On irrigation system level, the channel outflow and reservoir lakes are sized continuously, in order to capture losses in time and space. The estimation of future water availability and demand is made through an integrated review of the measurement results, historical hydro-meteorological and socioeconomic data in combination with the use of hydrological models.

To account the available resources holistically, an extensive, continuous collection of data is required. The innovative and customized sensor technology ensures this. The surface water and irrigation channels are monitored by newly developed, robust and cost-effective water flow and water level sensors. Rainfall and the lack of infrastructure - especially in the mountain region of the Anden - require a special adaptation of the installed sensors. Beside the problem of data transmission, rainfall and snowfall sensors have to work without an external power supply. The development of an energy-efficient and maintenance-free sensor combination which stands the rough climate conditions, is needed.

Présentation (Ribeka)

Page publiée le 24 mars 2014, mise à jour le 12 août 2018