Abstract. Evapotranspiration (ET) is one of the most important components in water cycle. However, there are relatively few direct measurements ET available (e.g. using flux towers). Nevertheless, various disciplines, ranging from hydrology to agricultural and climate sciences, require information on spatial temporal distribution at regional global scales. Due limited data availability, attention has turned toward satellite-based products fill observational gaps. Various products, including...

Growth in demand for livestock-derived foods will likely remain strong low- and middle- income countries, fueling concerns about expansion of production the management natural resources. Recent research suggests that envisioned negative effects are not inevitable benefits such as improved food security can be enhanced. Targeted investments to livestock sector could help make these happen. We use scenario analysis explore this question, assessing impacts selected investment options...

[1] Evapotranspiration (ET) accounts for a substantial amount of the water use in river basins particular tropics and arid regions. However, accurate estimation still remains challenge especially large spatially heterogeneous data scarce areas including Upper Pangani River Basin Eastern Africa. Using multitemporal Moderate-resolution Imaging Spectroradiometer (MODIS) Surface Energy Balance Algorithm Land (SEBAL) model, 138 images were analyzed at 250 m, 8 day scales to estimate actual ET 16...

Abstract. Hydrological processes in small catchments are not quite understood yet, which is true particular for data scarce, semi-arid regions. This contrast with the need a better understanding of water fluxes and interactions between surface- groundwater order to facilitate sustainable resources management such environments, where both floods droughts can result severe crop loss. In this study, event runoff coefficient analysis limited tracer four small, nested sub-catchments (0.4–25.3...

Increasing climate variability and challenge in access to water pose major impediments rainfed agricultural productivity. Extensive flooding of lands during the rainy season lack 8-month long dry affect livelihood people northern Ghana, a situation that calls for better management practices. The use aquifer storage recharge (ASR) based technique, helps reduce improve season; however such technology has specific requirements successful implementation. This study assesses suitable areas Ghana...

Land-use and land-cover changes are driving unprecedented in ecosystems environmental processes at different scales. This study was aimed identifying the potential land-use drivers Jedeb catchment of Abbay basin by combining statistical analysis, field investigation remote sensing. To do so, a change model calibrated evaluated using SITE (SImulation Terrestrial Environment) modelling framework. is cellular automata based multi-criteria decision analysis framework for simulating conversion on...

Abstract Dam construction and operation are known to alter the hydrology of rivers degrade riverine ecosystems. In recent decades, call reverse these negative impacts by re‐operating dams has become stronger. Dams can support ecosystems releasing environmental flows (e‐flows). Unfortunately, despite development numerous methodologies determine e‐flows optimise dam releases, actual implementation not followed suit. Integrating e‐flow requirements in design new is relatively easier than...

Abstract. The growing competition for finite land and water resources the need to feed an ever-growing population require new techniques monitor performance of irrigation schemes improve productivity. Datasets from FAO's portal Water Productivity through Open access Remotely sensed derived data (WaPOR) are increasingly applied as a cost-effective means support assessment identify possible pathways improvement. This study presents framework that applies WaPOR assess indicators, including...

Abstract Water resources assessments are essential for effective planning in water-scarce regions such as Jordan. Such require sufficient data space and time. The WaPOR-based Accounting Plus (WA +) framework is relevant it integrates remote sensing the Pixel-Based Soil Balance model to simulate a basin’s water balance. However, since relies on sensing, this only tracks consumption irrigated agriculture does not consider non-irrigation use its return flow. This paper modifies WA + include...

ABSTRACT The Inner Niger Delta (IND) is an important water source for agricultural supply, fish production, and livestock breeding. It sustains the livelihoods of more than 3 million people a driver rural economy Mali. However, growing demand anticipated effects climate change cast some uncertainties on future resources in basin. In this research, projected resource terms streamflow were investigated using semi-distributed catchment model Niger-HYPE. was first calibrated, validated, then...

Kikuletwa catchment, Upper Pangani River Basin, Tanzania. This study compared yearly blue and green water fluxes using four different methods: Senay's method (SN) (Senay et al., 2016), van Eekelen (EK) (van 2015), the Budyko (Simons 2020) Soil Water Balance (SWB) model (FAO IHE Delft, 2019). The of Land Use Cover (LULC) classes were estimated an ensemble seven global remote sensing-based evapotranspiration products (Ensemble ET) CHIRPS rainfall dataset. Ensemble ET was created from RS-based...

A widely promoted approach to tackle food insecurity and water shortage challenges simultaneously is enhance crop productivity (WP). Therefore, multiple international organizations have featured WP improvements as their major policy goal, substantial public private investments been made in this domain. Advances remote sensing allow accurate, rapid, cost-effective analysis for agricultural monitoring. However, translating the data actionable information seems fraught with difficulties, it...

The Inner Niger Delta (IND), one of the largest floodplain systems in Africa, sustains livelihoods more than three million people and is a driver rural economy Mali as far agriculture, fish production, livestock are concerned. Because IND ecosystem flood-dependent, it important to monitor seasonal flooding variations. Many attempts accomplish this task have relied on detailed datasets, such daily discharge, rainfall, evapotranspiration, which not easily accessible for data-sparse areas....