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Titel Assessment of depth, area, and volume characteristics of small water bodies
VerfasserIn Jens Liebe, Lineu Rodrigues, Nick van de Giesen
Konferenz EGU General Assembly 2011
Medientyp Artikel
Sprache Englisch
Digitales Dokument PDF
Erschienen In: GRA - Volume 13 (2011)
Datensatznummer 250056145
 
Zusammenfassung
In many parts of the world, hydrologists try to assess the storage volumes of numerous smaller water bodies, such as reservoirs, ponds, potholes and wetlands. In semi-arid areas, large numbers of small reservoirs exist, of which the storage volumes are not known. However, knowledge of storage volumes is required to assess their hydrological impact of further development of such reservoirs. In other parts of the world, the storage volumes of prairie potholes and wetland pools are frequently under investigation and their dynamics are monitored for a variety of reasons, such as to assess climate change effects and ecological effects of droughts. The most accurate method that can be used to obtain the storage volume of these water bodies is to conduct detailed bathymetric surveys. However, due to high costs and time requirements, particularly over larger regions with hundreds of water bodies, such surveys are avoided whenever possible. A number of methods have been proposed which can be used to estimate storage volumes, as functions of surface area and depth. We present an overview of different methods available for volume estimation of small water bodies, characteristics of their coefficients, and their predictive performance in comparison to bathymetric data.