Related Papers
Securing water and land in the Tana basin: a resource book for water managers and practitioners
2012 •
Frank Van Steenbergen
In-Channel Managed Aquifer Recharge: A Review of Current Development Worldwide and Future Potential in Europe
2020 •
José Paulo Monteiro
Managed aquifer recharge (MAR) schemes often employ in-channel modifications to capture flow from ephemeral streams, and increase recharge to the underlying aquifer. This review collates data from 79 recharge dams across the world and presents a reanalysis of their properties and success factors, with the intent of assessing the potential of applying these techniques in Europe. This review also presents a narrative review of sand storage dams, and other in-channel modifications, such as natural flood management measures, which contribute to the retardation of the flow of flood water and enhance recharge. The review concludes that in-channel MAR solutions can increase water availability and improve groundwater quality to solve problems affecting aquifers in hydraulic connection with temporary streams in Europe, based on experiences in other parts of the world. Therefore, to meet the requirements of the Water Framework Directive (WFD), in-channel MAR can be considered as a measure to ...
RUVIVAL Publication Series Volume 6
2020 •
Lukas Schreiner
Die RUVIVAL-Publikationsreihe ist eine Zusammenstellung von Literaturübersichten oder einführenden Texten zu Themen, die sich mit der Revitalisierung ländlicher Gebiete befassen. Sie ist Teil des E-Learning-Projekts RUVIVAL und ist mit weiteren interaktiven Lerninhalten verbunden, die unter www.hoou.de eingesehen werden können. Die Literaturübersicht in diesem Band gibt dir einen Überblick zum Thema Sanddämme und die jüngste Forschung zu dieser Technik. Ein Sanddamm ist eine Art Grundwasserdamm, eine Praktik zur Nutzung von Regenwasser, die sowohl aus einer undurchlässigen Struktur besteht, die in saisonalen Bächen über sandige Flussbetten gebaut wird, als auch aus einem über dem Flussbett erhöhten Kamm. Diese Komponenten haben das Potential, die Wasserspeicherkapazität und das Ertragspotential saisonaler sandiger Flüsse zu erhöhen, indem sie grobe Sedimente aus dem stromaufwärts gelegenen Einzugsgebiet im Damm zurückhalten. Die optimale Leistung eines Sanddamms hängt stark von der ...
African Handbook of Climate Change Adaptation
Sustainable Urban Drainage Practices and Their Effects on Aquifer Recharge
Stephen Gitahi
Between 1994 and 2006, an 18% increase of freshwater flow into the earth’s ocean was recorded, as well as extreme weather events such as prolonged drought and intense floods. Following this period was an era of increased evaporation from oceans and seas, which heightened global warming in Africa. This chapter proposes the use of man-made aquifers recharge processes as methods of draining water into the soil before the runoff water reaches water bodies. Source control involves controlling the volume of water entering drainage systems or rivers by cutting off runoff water through storing for reuse or evapotranspiration as seen in green roofs. Pre-treatment is the use of trenches to filter and remove contaminants from water before getting to water bodies. Retention systems on the other hand is controlling the rate at which water is discharged to waterways by providing water storage areas such as ponds, water retention areas, etc., while Infiltration Systems are areas that allow natural...
Managed Aquifer Recharge: Opportunities and barriers
Erik van Lidth de Jeude
This multi-disciplinary study analyzed the barriers and opportunities of managed aquifer recharge (MAR) in the world. Managed aquifer recharge (MAR) is a collective name for techniques that infiltrate and store water in an aquifer. The focus of this study is on identifying hydrogeological, climate, socioeconomic and institutional boundary conditions for MAR.
Journal of Emerging Technologies and Innovative Research (JETIR) (ISSN-2349-5162)
SITE SELECTION FOR SUB SURFACE DAMS ACROSS PAPAGNI RIVER IN CHAKRAYAPETA MANDAL USING GEOSPATIAL TECHNOLOGIES
2019 •
M Kamraju, Mohd Akhter Ali, Siva Prathap
A subsurface dam (SSD) is built across streams or valleys to establish an underground reservoir and to recharge groundwater. A subsurface dam constructed below ground level to arrest the flow in a natural aquifer. The best sites for construction of SSD are those where the soil consists of sand and gravel with rock and an impermeable layer at a few meters depth. Ideally the SSD should be built in the areas where rain water from a large catchment area flows through a narrow passage. The most favorable zone for construction of SSD is an area with gentle slope between hills and plains. The underground reservoirs in sand rivers are principally recharged by rainwater from flash floods, which originate in catchment areas with higher elevation. Upon full saturation of the underground reservoir the remaining flash floods will pass over the dam without further infiltration to replenish the aquifers down streams. The subsurface dams are more advantageous in dry regions because they offer minimal evaporation, as the evaporation is confined to the upper layers of the SSD. They avoid the problem of submergence of land area, and allow negligible water contamination. They also form sound basis for water budget available in the regions of low rainfall particularly rain fed regions of Rayalaseema region in general and YSR Kadapa district in particular. In the present study Chakrayapeta mandal is taken as the area of interest for the identification of suitable sites of SSDs using the available Digital Elevation Models from the Bhuvan Geoportal services and application of Geospatial Technology for their advantages, accuracy and time management.
JETIR
Issue 3 www.jetir.org (ISSN-2349-5162
editor of J E T I R Research journal, kiran vaghjiyani
A subsurface dam (SSD) is built across streams or valleys to establish an underground reservoir and to recharge groundwater. A subsurface dam constructed below ground level to arrest the flow in a natural aquifer. The best sites for construction of SSD are those where the soil consists of sand and gravel with rock and an impermeable layer at a few meters depth. Ideally the SSD should be built in the areas where rain water from a large catchment area flows through a narrow passage. The most favorable zone for construction of SSD is an area with gentle slope between hills and plains. The underground reservoirs in sand rivers are principally recharged by rainwater from flash floods, which originate in catchment areas with higher elevation. Upon full saturation of the underground reservoir the remaining flash floods will pass over the dam without further infiltration to replenish the aquifers down streams. The subsurface dams are more advantageous in dry regions because they offer minimal evaporation, as the evaporation is confined to the upper layers of the SSD. They avoid the problem of submergence of land area, and allow negligible water contamination. They also form sound basis for water budget available in the regions of low rainfall particularly rain fed regions of Rayalaseema region in general and YSR Kadapa district in particular. In the present study Chakrayapeta mandal is taken as the area of interest for the identification of suitable sites of SSDs using the available Digital Elevation Models from the Bhuvan Geoportal services and application of Geospatial Technology for their advantages, accuracy and time management.
J. Bio. & Env. Sci.
INNSPUB International Network For Natural Sciences Website: www.innspub.net
2019 •
Hussein B Ghalib
Abstract The research aims to highlight on the largest wades in the study area (wade Al-Khur and wade Haussab) which are located in the West of Al-Najaf province and study the possibility of investing in rainwater harvesting through establishment of several submersible dams. Building such of these dams their have many benefits for the region like the protection from floods, obstructing the waters to get more time to penetrate through the soil column, recharging of groundwater from aggregate of water behind the dam via injection of water directly in the groundwater aquifer by use the modern methods. On the other hand, existences of such water ponds which allow to provide the water to the local population (Bedouin) and watering their animals, also it can be used for irrigation. Drainage patterns of secondary valleys are drawn by using Digital Elevation Model (DEM) is applied to determine the typical locations of small dams or barriers of concrete or soil. Several of field traps were conducted in the study area, where the main course of both wades were tracked to determine the most appropriate location for constructions such of these submersible dams in the region.
Green Water Management Handbook
Maimbo Malesu
This handbook highlights the principles and technologies that can be used to harness the huge untapped potential of rainwater. Instead of a stereotyped view focusing only on rivers and groundwater, the book directs readers in recognizing rain as the ultimate source of water for food production and other uses in rural economies across Africa. It also gives attention to climatological aspect of rainfall as a key component in the design of water harvesting technologies. The handbook looks at factors that influence rainfall and the effect of climate change. Also covered are technical options for rainwater management for crops, livestock and environmental systems. Finally, the handbook is based on practical experiences of work gained by members of the Southern and Eastern Africa Rainwater Network. The participatory approach to developing this book makes it a useful reference for trainers and others interested in the practical application of water harvesting technologies in the field.. IS...
Water
A Review of Managed Aquifer Recharge Potential in the Middle East and North Africa Region with Examples from the Kingdom of Saudi Arabia and the United Arab Emirates
Faisal Baig
Groundwater extraction in most Middle East and North Africa (MENA) countries far exceeds its renewability, which ranges from 6% to 100%. Freshwater resources to support food production are very limited in this region. Future climate predictions include more consistent and longer wet periods with increasing surplus rainfall, which will enhance flood and flash flood occurrences in the MENA. Demand management of groundwater resources and managed aquifer recharge (MAR, also called groundwater replenishment, water banking, and artificial recharge, is the purposeful recharge of water to aquifers for subsequent recovery or environmental benefits) represent essential strategies to overcome the challenges associated with groundwater depletion and climate change impacts. Such strategies would enable the development of groundwater resources in the MENA region by minimizing the stress placed on these resources, as well as reducing deterioration in groundwater quality. Groundwater augmentation t...
