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Assessment of rainf...
Assessment of rainfall variability and its relationship to ENSO in a sub-Andean watershed in central Bolivia
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- Amaya, Andres Gonzales (författare)
- Lund University,Lunds universitet,Teknisk geologi,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Engineering Geology,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH,Universidad Mayor de San Simon
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- Villazon, Mauricio F. (författare)
- Universidad Mayor de San Simon
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- Willems, Patrick (författare)
- Catholic University of Leuven
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(creator_code:org_t)
- 2018-05-29
- 2018
- Engelska.
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Ingår i: Water. - : MDPI AG. - 2073-4441. ; 10:6
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://www.mdpi.com...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Climate change and variability are likely to increase in most parts of the world, leading to more extreme events, which may increase the stress on already threatened water resources. This study focuses on the effects of the El Niño Southern Oscillation in the rainfall of Pucara basin and in the groundwater levels of the Punata alluvial fan in the Bolivian sub-Andes. Climate change and variability were assessed using the Quantile Perturbation Method, by detecting anomalous temporal changes in extreme quantiles of annual precipitation in the Pucara watershed and the correlation with groundwater levels in the Punata fan. The results show oscillatory behavior over periods of 28 to 33 years for the occurrence of wet and dry extremes at all studied meteorological stations. This suggests a similar oscillatory behavior of the groundwater levels; however, longer groundwater level observations are needed in order to confirm the link between precipitation variability and groundwater fluctuations. Local actors such as water managers, farmers and decision makers must take into consideration this climate variability in order to plan for these multi-decadal variations in response to the changes.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
Nyckelord
- Bolivia
- Climate variability
- El Niño
- Groundwater
- Southern Oscillation Index
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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