scholarly journals Assessment of Dynamic Groundwater Reserve of Kamarup District Lower Assam, India

2018 ◽  
Vol 4 (1) ◽  
pp. 89-99 ◽  
Author(s):  
A. Bhuvaneswari Devi ◽  
◽  
Archana M. Nair ◽  
Keyword(s):  
Groundwater Reserve

scholarly journals Bencana Kekeringan di Wilayah Taman Bumi Nasional Karangsambung-Karangbolong: Pengontrol, Dampak, dan Ketahanan

2021 ◽  
Vol 12 (1) ◽  
pp. 57
Author(s):  
Sugeng Purwo Saputro ◽  
Dwi Ratih Purwaningsih ◽  
Rahmi Mulyasari
Keyword(s):  
Local Governments ◽  
Secondary Data ◽  
Metamorphic Rocks ◽  
Field Observations ◽  
Danger Zone ◽  
Infiltration Rates ◽  
Geological Conditions ◽  
Groundwater Reserves ◽  
Groundwater Reserve

ABSTRAKKaranggayam dan Karangsambung di Kabupaten Kebumen termasuk ke dalam zona bahaya tinggi terdampak bencana kekeringan. Kedua daerah tersebut memiliki variasi batuan yang lengkap mulai dari batuan beku, batuan sedimen, hingga batuan metamorf, dan termasuk ke dalam wilayah Taman Bumi Nasional Karangsambung-Karangbolong. Prediksi dan penentuan area yang masih memiliki cadangan air tanah menjadi hal yang vital untuk segera dilakukan guna mengurangi dampak dari bencana tersebut, ditunjang dengan pengetahuan mengenai pengontrol utama dari parameter penyebab bencana kekeringan di daerah Karanggayam dan Karangsambung. Observasi lapangan dan analisis geospasial dipilih menjadi metode karena dinilai lebih efisien untuk penelitian ini, serta didukung dengan hasil analisis statistik dari data sekunder. Fisiognomi tanah, kondisi geologi, dan angka infiltrasi yang merupakan bagian dari delapan karakteristik geografi dan geomorfologi, dinilai menjadi pengontrol utama dari parameter penyebab bencana kekeringan yang terjadi di Karanggayam dan Karangsambung. Ketiga karakteristik tersebut berperan dalam mempersempit kemungkinan area cadangan air tanah menjadi hanya berada di sekitar lembah antiklin dan lereng sayap antiklin bagian selatan-tenggara (S-SE). Seluruh hasil penelitian ini dapat berfungsi untuk membantu pemerintah daerah dan pengelola taman bumi dalam membuat berbagai macam perencanaan dan kebijakan terkait Taman Bumi Nasional Karangsambung-Karangbolong.Kata kunci: bencana, cadangan air tanah, Kebumen, kekeringan, taman bumiABSTRACTKaranggayam and Karangsambung in Kebumen Regency included in the high danger zone affected by drought. Both areas have complete rock variations ranging from igneous, sedimentary, to metamorphic rocks, and are included in the Karangsambung-Karangbolong National Geopark. Prediction and determination of areas that still have groundwater reserves are vital to be carried out immediately to reduce the disaster’s impact, supported by the knowledge of the main controllers of drought-causing parameters in both areas. Field observations and geospatial analysis were chosen because they were considered more efficient and supported by the results of statistical analysis from secondary data. Soil physiognomy, geological conditions, and infiltration rates are considered the main controllers causing drought disasters in Karanggayam and Karangsambung areas. These three characteristics narrow down the possibility that the groundwater reserve area is only around the anticline valley and the south-southeast (S-SE) side of the anticline wing. All of the results of this study can help local governments and geopark management to make various plans and policies related to the Karangsambung-Karangbolong National Geopark.Keywords: disaster, groundwater reserves, Kebumen, drought, geopark

scholarly journals The Fate of Disi Aquifer as Stratigic Groundwater Reserve for Shared Countries (Jordan and Saudi Arabia)

2011 ◽  
Vol 03 (10) ◽  
pp. 711-714 ◽  
Author(s):  
Alsharifa Hind Jasem ◽  
Maisa'a Shammout ◽  
Dheaya AlRousan ◽  
Marwan AlRaggad
Keyword(s):  
Saudi Arabia ◽  
Groundwater Reserve

scholarly journals Assessment of Economically Accessible Groundwater Reserve and Its Protective Capacity in Eastern Obolo Local Government Area of Akwa Ibom State, Nigeria, Using Electrical Resistivity Method

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
N. J. George ◽  
E. U. Nathaniel ◽  
S. E. Etuk
Keyword(s):  
Local Government ◽  
Local Government Area ◽  
Eastern Region ◽  
Protective Capacity ◽  
Average Value ◽  
Resistivity Method ◽  
Salt River ◽  
Electrical Sounding ◽  
Electrical Resistivity Method ◽  
Groundwater Reserve

The application of geophysical method employing vertical electrical sounding (VES) method in combination with laboratory analysis of aquifer sediments has been used to access the economically accessible groundwater reserve and its protective capacity in some parts of Eastern Obolo Local Government area, the eastern region of the Nigerian Niger Delta. Schlumberger electrode configuration was used to sound twelve VES to occupy the areas that have borehole locations and accessibility for the spread of current electrodes to at least 1000 m. Based on the results, the safe and economic aquifer potential has groundwater reserve of about 168480558±18532861 m3. The desired aquifer thickness and its depth of burial have average value of 52.02 m and 73.14 m, respectively. The area has a fair protective capacity. This is indicated by 58.33% weak, 16.67% moderate, and 25% good protective capacity for the area. This study was done in one of the oil cities, where contaminated Salt River water is used as the major source of water for domestic uses and it is believed that the settlers will appropriate this result and sue for safe groundwater at the indicated depths.

scholarly journals Hydrogeochemical properties and the exhaustion groundwater reserve from Dammam aquifer at Al-Najaf Governorate, middle Iraq

2021 ◽  
Vol 1999 (1) ◽  
pp. 012158
Author(s):  
Mohanad R.A. Al-Owaidi ◽  
Arshad W.A. Al-Enezy ◽  
Mohammed L. Hussein
Keyword(s):  
Dammam Aquifer ◽  
Groundwater Reserve ◽  
Hydrogeochemical Properties

Hydrogeologic assessment and groundwater reserve evaluation in northwestern parts of Dun valley aquifers of Chitwan, inner Terai

1970 ◽  
Vol 12 ◽  
pp. 43-54 ◽  
Author(s):  
Rajendra Neupane ◽  
Suresh Das Shrestha
Keyword(s):  
Hydraulic System ◽  
Potential Evapotranspiration ◽  
Development Project ◽  
Nepal Himalaya ◽  
Himalayan Foothills ◽  
Storage Reserve ◽  
Chitwan Valley ◽  
Potential Recharge ◽  
Agriculture Development ◽  
Groundwater Reserve

The Chitwan Valley is one of the largest Dun Valleys in the Himalayan foothills of Nepal. Dun gravels perhaps deposited in the late Pleistocene to very early Holocene about 22,000-7000 yr. B.P. Chitwan Dun Valley is underlain by Dun fan gravels or Dun gravels which form unconfined to semiconfined or leaky confined aquifers. The study area, situated in the NW part of the valley occupies an area of 70.8 km2.The hydrogeological situation in the study area is inferred from drilling data of Ground Water Resources Development Board (GWRDB), Agriculture Development Project Janakpur (ADPJ) and several private drilling companies .The Chitwan Dun Valley constitutes a closed groundwater system in the Siwalik Zone of Nepal Himalaya. The study area reveals the existence of two definite groundwater sub-basin each having its own hydraulic system and is a part of single large regional groundwater basin. Annual potential evapotranspiration (PET) calculated at Rampur (station no 0902) for five-year period (1990-1995) is 1.68 mm/day. Annual precipitation data recorded at Rampur is 2214 mm. Area of recharge is 70.8 km2 and estimation of total groundwater storage(reserve) is 87.31 MCM per year, and dynamic reserve or annual potential recharge is estimated as 48.60 MCM per year.   doi: 10.3126/bdg.v12i0.2249 Bulletin of the Department of Geology, Vol. 12, 2009, pp. 43-54

scholarly journals Determine the exploitable groundwater reserve of Con Son Island in the condition of climate change and sea level rising

2017 ◽  
Vol 20 (K4) ◽  
pp. 13-20
Author(s):  
Thanh Uyen Dong ◽  
Chung Van Le ◽  
Nang Van Nguyen
Keyword(s):  
Climate Change ◽  
Sea Level ◽  
Input Data ◽  
Groundwater Monitoring ◽  
Flow Model ◽  
Current Model ◽  
Groundwater Flow Model ◽  
Groundwater Model ◽  
Groundwater Reserve ◽  
And Sea Level

The paper deals with problem of groundwater sustainable exploitation in accordance with the allowable drawdown, stipulated in Circular 27/2014/TT-BTNMT of Ministry of Natural Resources and Environment in combination with the sustainablity index, advised by UNESCO. The technical method is using a groundwater model containing reliable input data. As a result, a groundwater flow model was successfully constructed for stimulating the actual groundwater system in Con Son Island. The model was calibrated, using groundwater monitoring data of 12 wells and produced an error less than ±0.5m. On the basis of the current model, a prediction was made under condition of climate change and sea level rise up to the scenario RCP 4.5. Based on this prediction, the exploitable groundwater reserve of Con Son island was calculated as 14.430m3/day.

Application of proton magnetic resonance soundings to groundwater reserve mapping in weathered basement rocks (Brittany, France)

2004 ◽  
Vol 175 (1) ◽  
pp. 21-34 ◽  
Author(s):  
Robert Wyns ◽  
Jean-Michel Baltassat ◽  
Patrick Lachassagne ◽  
Anatoly Legchenko ◽  
Jacques Vairon ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Geometrical Approach ◽  
Hydrogeological Model ◽  
Basement Rocks ◽  
Decay Times ◽  
Weathered Layer ◽  
Groundwater Reserves ◽  
Groundwater Reserve ◽  
Water Contents

Abstract The Proton Magnetic Resonance (PMR) or Nuclear Magnetic Resonance (NMR) method, coupled with geometrical aquifer modelling, has been used to create a map of groundwater reserves over a 270 km2 study area in a weathered basement setting. Most of the reserves are contained in a stratiform multi-layer aquifer whose geometry is influenced by the weathering front. The depths to the interfaces determined by PMR are considered and validated by comparison with the geometrical approach. Water contents and decay times of the PMR signal for each weathered layer are compared with the hydrogeological model. The results of the study show a decrease in water content from the top downwards for the three main aquifer layers (respectively : unconsolidated alterite, and an upper and a lower fissured zone). The groundwater reserves (80 % in the fissured zone and 20 % in unconsolidated alterite) represent approximately three years of average infiltration.

Quantifying the impact of irrigation on groundwater reserve and crop production – A case study in the North China Plain

2015 ◽  
Vol 70 ◽  
pp. 48-56 ◽  
Author(s):  
Hongyong Sun ◽  
Xiying Zhang ◽  
Enli Wang ◽  
Suying Chen ◽  
Liwei Shao
Keyword(s):  
Crop Production ◽  
North China Plain ◽  
North China ◽  
The North ◽  
The North China Plain ◽  
The Impact ◽  
Groundwater Reserve
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