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| Titel |
Water Accounting Plus (WA+) – a water accounting procedure for complex river basins based on satellite measurements |
| VerfasserIn |
P. Karimi, W. G. M. Bastiaanssen, D. Molden |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 17, no. 7 ; Nr. 17, no. 7 (2013-07-04), S.2459-2472 |
| Datensatznummer |
250018916
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| Publikation (Nr.) |
 copernicus.org/hess-17-2459-2013.pdf |
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| Zusammenfassung |
| Coping with water scarcity and growing competition for water among different
sectors requires proper water management strategies and decision processes.
A pre-requisite is a clear understanding of the basin hydrological
processes, manageable and unmanageable water flows, the interaction with
land use and opportunities to mitigate the negative effects and increase the
benefits of water depletion on society. Currently, water professionals do
not have a common framework that links depletion to user groups of water and
their benefits. The absence of a standard hydrological and water management
summary is causing confusion and wrong decisions. The non-availability of
water flow data is one of the underpinning reasons for not having
operational water accounting systems for river basins in place. In this
paper, we introduce Water Accounting Plus (WA+), which is a new
framework designed to provide explicit spatial information on water
depletion and net withdrawal processes in complex river basins. The
influence of land use and landscape evapotranspiration on the water cycle is
described explicitly by defining land use groups with common
characteristics. WA+ presents four sheets including (i)
a resource base sheet, (ii) an evapotranspiration sheet, (iii) a productivity sheet, and (iv) a
withdrawal sheet. Every sheet encompasses a set of indicators that summarise the overall
water resources situation. The impact of external (e.g., climate change) and
internal influences (e.g., infrastructure building) can be estimated by
studying the changes in these WA+ indicators. Satellite measurements can
be used to acquire a vast amount of required data but is not a precondition
for implementing WA+ framework. Data from hydrological models and water
allocation models can also be used as inputs to WA+. |
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