Groundwater recharge

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  • The Current Rate Of Groundwater Recharge

    1246 Words  | 5 Pages

    Estimation the current rate of groundwater recharge [1] is essential for efficient groundwater resource management in arid and semi-arid zones, and is often the key to economic development. Moreover, it represents an essential component in the understanding of hydrogeologic settings for the aquifers. Many studies have been proposed to assess recharge with physical and chemical techniques, as well as with modeling [2-5]. These methods, however, are difficult to apply to regional scale studies, and

  • Advantages And Disadvantages Of Terraced Fields

    1309 Words  | 6 Pages

    Terraced fields have existed in many ancient human civilizations for thousands of years. They are ubiquitous; from the Incas to the Chinese, even in Europe, we see terraced fields developed and used for many purposes. Most terraced fields were constructed for agriculture, but some are developed to control floods and other purposes. To this day, we still see some terraced fields around the world, which allows us to admire their natural beauty. However, while we are admiring the beauty of terraced

  • High Resolution Groundwater Prospect Mapping Of Raichur, Karnataka Using Remote Sensing And Gis

    1864 Words  | 8 Pages

    High Resolution Groundwater Prospect Mapping of Raichur, Karnataka Using Remote Sensing & GIS Joseph T. Koottiyaniyil1, Pankaj Dhote2 & Dr. S. K. Srivastav3 1P. G. Diploma, Water Resource Department, Indian Institute of Remote Sensing 2Scientist’SC’, Indian Institute of Remote Sensing,3Scientist’G’, Indian Institute of remote sensing, Dehradun. Abstract: Occurrence of groundwater in the basement complex of Raichur, Karnataka is controlled by secondary porosity developed through weathering and

  • Analysis On The Nubian Sandstone Aquifer System

    1552 Words  | 7 Pages

    south to north groundwater flow and replenishment from the recharge areas in the south. The NE-SW trending Pelusium mega shear cuts the Precambrian rocks and continues upward in the sedimentary cover; it formed deep structural controlled basins along its zone, which were filled by high thick sediments of relatively high hydraulic conductivities extending from the Kufra Basin in Libya and Chad to the northern part of Dakhla Basin in Egypt. This zone could provide a preferred groundwater flow pathway

  • Water Resource Is Ground Water

    1872 Words  | 8 Pages

    water will be exhausted in the Kansas High Plains aquifer in 50 years” (Kansas Water Resources Board). Groundwater is available to help support agricultural production and is a reliable guarantee, but with continual depletion of the aquifers there would be a threat to the future of sustainable water resources. The High Plains aquifer provides the United States with 30 percent of irrigated groundwater, where the high plains of Kansas’s aquifers occupy an important share. Kansas State University, Department

  • WATER AND ARTIFICIAL RECHARGE IN GUJARAT

    2087 Words  | 9 Pages

    ARTIFICIAL RECHARGE IN GUJARAT” ABSTRACT Though groundwater is an important source of irrigation in India, its availability is non-uniform in space and time. In Saurashtra region of Gujarat state, problem of groundwater depletion has arisen due to high withdrawal than rate of replenishment of groundwater. This also resulted in seawater intrusion in coastal areas at very high rate. The water harvesting and groundwater recharge activities played an important role in increasing the groundwater resource

  • The Study Of Groundwater Flow Systems In Central Main Ethiopia Rift Faultss

    852 Words  | 4 Pages

    Among those Some of the works are briefly described as follows: In the rift the localization of groundwater is strongly controlled by the rift faults. They have contrasting role in the movement and occurrence of groundwater. Most of the faults acts as conduit for groundwater flow. In contrast to the high hydraulic conductivity of the rift fractured volcanics, some faults act as barriers of groundwater flow. This is a common case in areas of structures where the faults deep against the topographic

  • Ground Water Depletion

    6229 Words  | 25 Pages

    user of groundwater for irrigation in the world. India has around 432 cubic kilometres of annual replenishable groundwater re-sources. With a net annual groundwater availability of 399 cubic kilometres, the net withdrawals in 2004 amounted to 58% of the net annually available resource .The drawn amount of groundwater is estimated to be 210 billion cubic meters per year compared to 105 billion cubic meters in China and 100 billion cubic meters in US. Indian agriculture is sustained by groundwater. According

  • Population Growth in South Florida and Salt Water Intrusion

    1348 Words  | 5 Pages

    strain on the fresh groundwater supplies has triggered more saltwater intrusion to the Biscayne aquifer. Saltwater intrusion has been one the main contaminant that continues to endanger the Biscayne aquifer. It has occurred as a result of the followings: the over-pumping by wells, the construction of drainage canals, and the lowering of the water table by drought. Ongoing efforts by South Florida water agencies to protect the aquifer from saltwater intrusion include groundwater monitoring, water management

  • Chlorine 36 Ages ( Paterson Et Al

    1126 Words  | 5 Pages

    the southern highlands of the Uweinat area. Late Quaternary recharge appears to affect the shallow aquifer horizons only (Paterson et al., 2005). Krepton-81 ages (Sturchio et al., 2004) show also a progressive increase with distance to the east and north from the Dakhla Oasis, their spatial distribution indicates relatively high flow velocities (~1 m/yr–3.17×10-8 m/s) from Dakhla (210 kyr) toward Farafra (330 kyr) along the groundwater flow, and low velocities (~0.2 m/yr–6.34× 10-9 m/s) from Dakhla

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