Many types of analysis require rainfall data, which must often be generated to overcome limitations in the historical record. The ability to model outlying rainfall years satisfactorily is particularly important in risk studies. We describe a rainfall generator with this ability, based on a third...
Jones, Peter G.
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Thornton, Philip K.
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[Spatial and temporal variability of rainfall related to a third-order Markov model]
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Spatial and temporal variability of rainfall related to a third-order Markov model
Potato production in Uganda is being affected by rainfall fluctuations in both timing and amount, resulting into inadequate soil moisture availability and low productivity. Also, potato production is expanding into locations at lower altitudes, where drought is more common. Therefore, drought str...
Kesiime, V.E.
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Tusiime, Geoffrey
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Kashaija, I.N.
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Edema, R.
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Gibson, P.
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Namugga, P.
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Kakuhenzire, R.
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[Characterization and evaluation of potato genotypes (Solanum tuberosum L) for tolerance to drought in Uganda.]
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Characterization and evaluation of potato genotypes (Solanum tuberosum L) for tolerance to drought in Uganda.
In the Gash Delta of Eastern Sudan, spate irrigation (flood-recession farming) contributes substantially to rural livelihoods by providing better yields than rainfed dryland farming. However, spate irrigation farmers are challenged by the unpredictability of flooding. In recent decades, the numbe...
Amarnath, Giriraj
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Simons, G.W.H.
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Alahacoon, Niranga
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Smakhtin, V.
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Sharma, Bharat R.
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Gismalla, Y.
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Mohammed, Y.
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Andriessen, M.C.M.
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[Using smart ICT to provide weather and water information to smallholders in Africa: the case of the Gash River Basin, Sudan]
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Using smart ICT to provide weather and water information to smallholders in Africa: the case of the Gash River Basin, Sudan
Groundwater contribution to streamflow sustains biodiversity and enhances ecosystem services, especially under monsoon-driven climate where stream baseflow is often the only available water resource during the dry season. We assessed how land use change influences streamflow and its groundwater c...
Ribolzi, Olivier
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Lacombe, Guillaume
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Pierret, A.
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Robain, H.
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Sounyafong, P.
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Rouw, Anneke de
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Soulileuth, B.
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Mouche, E.
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Huon, S.
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Silvera, N.
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Latxachak, K.O.
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Sengtaheuanghoung, Oloth
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Valentin, C.
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[Interacting land use and soil surface dynamics control groundwater outflow in a montane catchment of the lower Mekong basin]
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Interacting land use and soil surface dynamics control groundwater outflow in a montane catchment of the lower Mekong basin
Although most recharge estimation studies apply multiple methods to identify the possible range in recharge values, many do not distinguish clearly enough between inherent uncertainty of the methods and other factors affecting the results. We investigated the additional value that can be gained f...
Walker, D.
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Parkin, G.
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Schmitter, Petra
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Gowing, J.
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Tilahun, S.A.
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Haile, Alemseged T.
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Yimam, A.Y.
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[Insights from a multi-method recharge estimation comparison study]
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Insights from a multi-method recharge estimation comparison study
In this paper, a multifractal downscaling technique is applied to adequately transformed and lag corrected normalized difference vegetation index (NDVI) in order to obtain daily estimates of rainfall in an area of the Peruvian Andean high plateau. This downscaling procedure is temporal in nature ...
Duffaut Espinosa, L.A.
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Posadas, A.N.
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Carbajal, M.
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Quiróz, R.
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[Multifractal downscaling of rainfall using Normalized Difference Vegetation Index (NDVI) in the Andes Plateau.]
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Multifractal downscaling of rainfall using Normalized Difference Vegetation Index (NDVI) in the Andes Plateau.
Study region: Kathmandu Valley, Capital city of Nepal.
Study focus: This study applied three hydrological models (i.e., SWAT, HBV, and BTOPMC) to analyze the water balance components and their temporal and seasonal variations in the Kathmandu Valley, Nepal. The water balance components were inves...
Thapa, B.R.
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Ishidaira, H.
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Pandey, Vishnu Prasad
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Shakya, N.M.
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[A multi-model approach for analyzing water balance dynamics in Kathmandu Valley, Nepal]
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A multi-model approach for analyzing water balance dynamics in Kathmandu Valley, Nepal
In Montane Southeast Asia, deforestation and unsuitable combinations of crops and agricultural practices degrade soils at an unprecedented rate. Typically, smallholder farmers gain income from “available” land by replacing fallow or secondary forest by perennial crops. We aimed to understand how ...
Groundwater recharge remains almost totally unknown across the Mekong River Basin, hindering the evaluation of groundwater potential for irrigation. A regional regression model was developed to map groundwater recharge across the Lower Mekong Basin where agricultural water demand is increasing, e...
Lacombe, Guillaume
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Douangsavanh, Somphasith
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Vongphachanh, S.
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Pavelic, Paul
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[Regional assessment of groundwater recharge in the lower Mekong Basin]
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Regional assessment of groundwater recharge in the lower Mekong Basin
Storage of surface water is widely regarded as a form of insurance against rainfall variability. However, creation of surface storage often endanger the functions of natural ecosystems, and, in turn, ecosystem services that bene t humans. The issues of optimal size, placement and the number of re...
Eriyagama, Nishadi
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Smakhtin, V.
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Udamulla, L.
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[Centralized versus distributed reservoirs: an investigation of their implications on environmental flows and sustainable water resources management]
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Centralized versus distributed reservoirs: an investigation of their implications on environmental flows and sustainable water resources management