Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 537713
Title Diagnosing drought using the downstreamness concept : the effect of reservoir networks on drought evolution
Author(s) Oel, Pieter R. van; Martins, Eduardo S.P.R.; Costa, Alexandre C.; Wanders, Niko; Lanen, Henny A.J. van
Source Hydrological Sciences Journal 63 (2018)7. - ISSN 0262-6667 - p. 979 - 990.
Department(s) WASS
Water Resources Management
Hydrology and Quantitative Water Management
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) downstreamness - hydrological drought - reservoirs - SPI - water management
Abstract To effectively manage hydrological drought, there is an urgent need to better understand and evaluate its human drivers. Using the “downstreamness” concept, we assess the role of a reservoir network in the emergence and evolution of droughts in a river basin in Brazil. In our case study, the downstreamness concept shows the effect of a network of reservoirs on the spatial distribution of stored surface water volumes over time. We demonstrate that, as a consequence of meteorological drought and recovery, the distribution of stored volumes became spatially skewed towards upstream locations, which affected the duration and magnitude of hydrological drought both upstream (where drought was alleviated) and downstream (where drought was aggravated). The downstreamness concept thus appears to be a useful entry point for spatiotemporally explicit assessments of hydrological drought and for determining the likelihood of progression from meteorological drought to a human-modified hydrological drought in a basin.
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