Southern Africa faces acute water scarcity challenges due to drought recurrence, degradation of surface water resources, and the increasing demand of water from agriculture, which has to meet the growing food demands of an increasing population. These stressors require innovative solutions that e...
Matchaya, Greenwell C.
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Nhamo, Luxon
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Nhlengethwa, Sibusiso
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Nhemachena, Charles
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[An overview of water markets in southern Africa: an option for water management in times of scarcity]
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An overview of water markets in southern Africa: an option for water management in times of scarcity
The paper presents a moderate resolution imaging spectroradiometer (MODIS) time-series imagery-based algorithm for detection and mapping of seasonal and annual changes in flood extent, and tests this using the flooding of the Indus River Basin in 2010 – one of the greatest recent disasters that a...
Amarnath, Giriraj
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Rajah, Ameer
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[An evaluation of flood inundation mapping from MODIS and ALOS satellites for Pakistan]
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An evaluation of flood inundation mapping from MODIS and ALOS satellites for Pakistan
Understanding long-term climatic variability is basic to wise management and conservation of biodiversity. We analysed temporal variations in the local rainfall, temperature, Normalized Difference Vegetation Index and the hemispheric El Niño-Southern Oscillation (ENSO), using the Southern Oscilla...
Ogutu, Joseph O.
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Piepho, Hans-Peter
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Dublin, H.T.
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Bhola, N.
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Reid, S.
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[El Niño-Southern Oscillation, rainfall, temperature and normalized difference vegetation index fluctuations in the Mara-Serengeti ecosystem]
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El Niño-Southern Oscillation, rainfall, temperature and normalized difference vegetation index fluctuations in the Mara-Serengeti ecosystem
The vast majority of farmers in sub-Saharan Africa depend on rainfed agriculture for food production and livelihood. Various factors including but not limited to rainfall variability, land degradation, and low soil fertility constrain agricultural productivity in the region. The objectives of thi...
Worqlul, A.W.
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Dile, Y.T.
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Schmitter, Petra
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Jeong, J.
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Meki, M.N.
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Gerik, T.J.
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Srinivasan, R.
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Lefore, Nicole
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[Water resource assessment, gaps, and constraints of vegetable production in Robit and Dangishta watersheds, Upper Blue Nile Basin, Ethiopia]
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Water resource assessment, gaps, and constraints of vegetable production in Robit and Dangishta watersheds, Upper Blue Nile Basin, Ethiopia
The Ganges River Basin may have a major pending water crisis. Although the basin has abundant surface water and groundwater resources, the seasonal monsoon causes a mismatch between supply and demand as well as flooding. Water availability and flood potential is high during the 3–4 months of the ...
Amarasinghe, Upali A.
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Muthuwatta, Lal P.
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Surinaidu, L.
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Anand, Sumit
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Jain, S.K.
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[Reviving the Ganges water machine: why?]
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Reviving the Ganges water machine: why?
As satellite technology develops, satellite rainfall estimates are likely to become ever more important in the world of food security. It is therefore vital to be able to identify the uncertainty of such estimates and for end users to be able to use this information in a meaningful way. This pape...
Greatrex H
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Grimes D
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Wheeler, Tim
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[Advances in the Stochastic Modeling of Satellite-Derived Rainfall Estimates Using a Sparse Calibration Dataset]
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Advances in the Stochastic Modeling of Satellite-Derived Rainfall Estimates Using a Sparse Calibration Dataset
Due to increased population pressure and limited availability of fertile land, farmers on desert fringes increasingly rely on marginal land for agricultural production, which they have learned to rehabilitate with different technologies for soils and water conservation. One such method is the ind...
Fatondji, D.
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Martius, C.
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Bielders, Charles L.
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Vlek, Paul L.G.
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Bationo, B. André
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Gerard, Bruno G.
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[Effect of planting technique and amendment type on pearl millet yield, nutrient uptake, and water use on degraded land in Niger]
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Effect of planting technique and amendment type on pearl millet yield, nutrient uptake, and water use on degraded land in Niger
While the berlett-Lewis model has been widely used for modelling rainfall processes at a fixed point in space over time, there are observed features, such as longer-scale dependence, which are not well fitted by the model. In this paper is a study of an extension where the authors put an extra la...
Salim, A.
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Pawitan, Y.
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[Extensions of the Bartlett-Lewis model for rainfall processes]
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Extensions of the Bartlett-Lewis model for rainfall processes
Climatic condition, geology, and geochemical processes in an area play a major role on groundwater quality. Impact of these on the fluoride content of groundwater was studied in three regions-part of Nalgonda district in Telangana, Pambar River basin, and Vaniyar River basin in Tamil Nadu, southe...
Brindha, Karthikeyan
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Jagadeshan, G.
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Kalpana, L.
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Elango, L.
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[Fluoride in weathered rock aquifers of southern India: managed aquifer recharge for mitigation]
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Fluoride in weathered rock aquifers of southern India: managed aquifer recharge for mitigation
Soil moisture is a highly suitable indicator for assessing agricultural drought, as plants start to wilt when there is not sufficient soil water to meet evapotranspiration demand. In this study, we provide insights on information obtained from satellite surface soil moisture observations (as comp...
Modanesi, S.
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Massari, C.
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Camici, S.
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Brocca, L.
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Amarnath, Giriraj
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[Do satellite surface soil moisture observations better retain information about crop-yield variability in drought conditions?]
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Do satellite surface soil moisture observations better retain information about crop-yield variability in drought conditions?