scholarly journals Realization of Daily Evapotranspiration in Arid Ecosystems Based on Remote Sensing Techniques

2016 ◽  
Author(s):  
Mohamed Elhag ◽  
Jarbou A. Bahrawi
Keyword(s):  
Remote Sensing ◽  
Water Resources ◽  
Water Resources Management ◽  
Arid Ecosystems ◽  
Arid Environments ◽  
Resources Management ◽  
Sustainable Water Resources Management ◽  
Management Plans ◽  
Daily Evapotranspiration ◽  
Remote Sensing Techniques

Abstract. Daily evapotranspiration is a major component in water resources management plans. In arid ecosystems, the quest for efficient water budget is always hard to achieve due to insufficient irrigational water and high evapotranspiration rates. Therefore, monitoring of daily evapotranspiration is a keystone practice for sustainable water resources management, especially in arid environments. Remote Sensing Techniques offered a great help to estimate the daily evapotranspiration on a regional scale. Existing open source algorithms proved to estimate daily evapotranspiration in arid environments comprehensively. The only deficiency of these algorithms is course scale of the used remote sensing data. Consequently, the adequate downscaling algorithm is a compulsory step to rationalize an effective water resources management plans. Daily evapotranspiration was fairly estimated using AATSR in conjunction with MERIS data acquired in July 2013 with one-kilometer spatial resolution and 3 days temporal resolution under SEBS model. Results were validated against reference evapotranspiration ground truth values using standardized Penman-Monteith method with R2 of 0.879. The findings of the current research are successfully fulfilled to monitor turbulent heat fluxes values estimated from AATSR and MERIS data with a temporal resolution of 3 days only in conjunction with reliable meteorological data. Research verdicts are necessary inputs for well-informed decision-making process regarding sustainable water resources management

scholarly journals Realization of daily evapotranspiration in arid ecosystems based on remote sensing techniques

2017 ◽  
Vol 6 (1) ◽  
pp. 141-147 ◽  
Author(s):  
Mohamed Elhag ◽  
Jarbou A. Bahrawi
Keyword(s):  
Remote Sensing ◽  
Water Resources ◽  
Water Resources Management ◽  
Temporal Resolution ◽  
Arid Ecosystems ◽  
Turbulent Heat ◽  
Arid Environments ◽  
Resources Management ◽  
Daily Evapotranspiration ◽  
Remote Sensing Techniques

Abstract. Daily evapotranspiration is a major component of water resources management plans. In arid ecosystems, the quest for an efficient water budget is always hard to achieve due to insufficient irrigational water and high evapotranspiration rates. Therefore, monitoring of daily evapotranspiration is a key practice for sustainable water resources management, especially in arid environments. Remote sensing techniques offered a great help to estimate the daily evapotranspiration on a regional scale. Existing open-source algorithms proved to estimate daily evapotranspiration comprehensively in arid environments. The only deficiency of these algorithms is the course scale of the used remote sensing data. Consequently, the adequate downscaling algorithm is a compulsory step to rationalize an effective water resources management plan. Daily evapotranspiration was estimated fairly well using an Advance Along-Track Scanner Radiometer (AATSR) in conjunction with (MEdium Resolution Imaging Spectrometer) MERIS data acquired in July 2013 with 1 km spatial resolution and 3 days of temporal resolution under a surface energy balance system (SEBS) model. Results were validated against reference evapotranspiration ground truth values using standardized Penman–Monteith method with R2 of 0.879. The findings of the current research successfully monitor turbulent heat fluxes values estimated from AATSR and MERIS data with a temporal resolution of 3 days only in conjunction with reliable meteorological data. Research verdicts are necessary inputs for a well-informed decision-making processes regarding sustainable water resource management.

scholarly journals Toward an Integrated and Sustainable Water Resources Management in Structurally-Controlled Watersheds in Desert Environments Using Geophysical and Remote Sensing Methods

2021 ◽  
Vol 13 (7) ◽  
pp. 4004
Author(s):  
Mohamed Attwa ◽  
Mohammed El Bastawesy ◽  
Dina Ragab ◽  
Abdullah Othman ◽  
Hamza M. Assaggaf ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Water Resources ◽  
Water Resources Management ◽  
Red Sea ◽  
Test Site ◽  
Mitigation Measures ◽  
Tectonic Activity ◽  
Resources Management ◽  
Sustainable Water Resources Management ◽  
Sustainable Water Resources

Sustainable water resources management in desert environment has yet to be reached due to the limited hydrological datasets under such extreme arid conditions. In the Eastern Sahara, the tectonic activity associated with the opening of the Red Sea adds more complexity to developing sustainable water management by creating multiple aquifers within subsided half-grabens along the Red Sea extension. To overcome these difficulties, a two-fold approach is adopted including integrated remote sensing and geoelectrical methods using Wadi Al-Ambagi watershed in the Eastern Desert of Egypt as a test site. First, the total discharge is estimated as 15.7 × 106 m3 following the application of a uniform storm of 10 mm effective precipitation, which exceeds the storage capacity of existing mitigation measures (5.5 × 106 m3), and thus additional dams are required. Second, the subsurface geometry of alluvium and sedimentary aquifers, within subsided blocks in the Arabian–Nubian shield (ANS), is delineated using 1D direct current and 2D electrical-resistivity tomography (ERT). Findings indicate that significant thicknesses of more than 80 m of permeable sedimentary units occur within the subsided blocks. Therefore, the scarce water resources can be managed by controlling the flash floods and suggesting proper dam sites at the location of thick alluvium and sedimentary rocks, where aquifers can be recharged representing a sustainable source for freshwater. The proposed approach is transferable and can be applied in similar arid rift-related watersheds in Saudi Arabia and worldwide.

scholarly journals Water resources management in the watershed of Volvi Lake

2013 ◽  
Vol 7 (3) ◽  
pp. 379-385
Keyword(s):  
Water Resources ◽  
Water Balance ◽  
Water Resources Management ◽  
Management Program ◽  
Corporate Management ◽  
Northern Greece ◽  
Resources Management ◽  
Management Plans ◽  
Rational Management ◽  
The Creation

The decrease of available water resources, the water quality degradation as well as the rapid increase of population combined with the growth of human activities, impose today the development of a science that concerns the Management of Water Resources. Lake Volvi faces a lot of problems, the most important being the water level drop, which is mostly due to the big quantities of water flowing through to Rihios River and to the wrong management of irrigation water. The study area of the present research consists of the watershed of Lake Volvi, situated in Northern Greece, 39 km away from the city of Thessaloniki. The objective of this study is the estimation of the water balance of the hydrologic basin of Lake Volvi with a Corporate Management program, using Visual Fortran and the creation of scenarios for better management of the water resources of the region. Lake Volvi is situated next to Lake Koronia, both of them belonging to a wider region that forms the geological basin of Mygdonia. Lake Volvi is the recipient of the water draining from Lake Koronia. The water that drains from Lake Volvi is discharged into the gulf of Strymonikos through Rihios River. Firstly, a close analysis is attempted for the estimation of the water balance of the entire hydrologic basin of Lake Volvi with the method of Turc, which is used widely throughout the world. Next, in order to simulate the lake, an administrative model is used, written in Visual Fortran. A rational management of the hydrological elements of the region is attempted with the creation of four alternative scenarios. After the execution of the Corporate Management program, the results show that the main problem for Lake Volvi is the water leaking to Rihios River. Moreover, the research also shows that it is important to reduce the water used for irrigation. As a final result, it is an imperative need to develop water resources management plans for the restoration of the entire region.

scholarly journals IMPACTS OF EXTREME HYDROLOGICAL EVENTS ON SUSTAINABLE WATER RESOURCES MANAGEMENT AND HUMAN WELL-BEING

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
SANDRA STANKOVIĆ ◽  
DEJAN VASOVIĆ ◽  
NENAD ŽIVKOVIĆ
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Well Being ◽  
Primary Methods ◽  
Resources Management ◽  
Agenda 2030 ◽  
Sustainable Water Resources Management ◽  
Extreme Hydrological Events ◽  
The Republic ◽  
The Impact

The aim of this research is to emphasize the impact of extreme hydrological phenomena on thesustainable management of water-related societal needs. Therefore, it provides a definition of extreme hydrological events, as well as a survey of extreme hydrological events in the Republic of Serbia. It also gives a brief overview of Agenda 2030 with particular respect to Sustainable Development Goal (SDG) No 6 and highlights the impacts of extreme hydrological phenomena on the water resources, both from the perspective of the ecosystem and the society. Root-cause analysis and synthesis of data related to extreme hydrological events that occurred in the Republic of Serbia for characteristic years have been used as primary methods. The conclusion highlights the necessity of ensuring sustainable management of water resources in order to achieve the desired state of human well-being, as well as a healthy ecosystem. Keywords: extreme hydrological events, ecosystem services, sustainability, water resources, management

scholarly journals Toward sustainable water resources management: critical assessment on the implementation of integrated water resources management and water–energy–food nexus in Afghanistan

Water Policy ◽  
2021 ◽  
Author(s):  
Ajmal Khan Shams ◽  
Nur Shazwani Muhammad
Keyword(s):  
Water Resources ◽  
Water Resources Management ◽  
Water Resource Management ◽  
National Level ◽  
Integrated Water Resources Management ◽  
Resources Management ◽  
Efficient Management ◽  
Current State ◽  
Sustainable Water Resources Management ◽  
State Of Affairs

Abstract Afghanistan has abundant water resources; however, the current state of affairs is dismal because of the lack of integrated water resources management (IWRM) practices and prolonged war and conflict in the country. Therefore, there is a need for a systematic approach to water management, which can be materialized by integrating IWRM and the water–energy–food (WEF) nexus approach to maintain a critical balance of available water resources and their various uses at the national level. This study provides a comprehensive assessment of Afghanistan's water resource management, including the current state, challenges, opportunities, and way forward. The identified challenges are categorized as social and environmental issues, engineering and technical and regulatory, policy and government role. These challenges are inter-connected and a novel framework toward the implementation of IWRM and the WEF nexus in Afghanistan is proposed. This framework can be used by the relevant stakeholders to prepare a roadmap for sustainable management of water resources. Such integrative approaches will enhance Afghanistan's water, food, and energy security and significantly contribute to its economic development. Moving forward, the Afghanistan government must play a crucial role with regards to the efficient management of the country's water resources in an integrated manner as suggested in this paper.

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