scholarly journals Optimizing Groundwater Aquifers Potential in The Development of Irrigation Wells for Agriculture Using Geo-Electrical Method

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Rustadi , O T Purwadi, I G B Darmawan
Keyword(s):  
Groundwater Resources ◽  
Shallow Groundwater ◽  
Vertical Electrical Sounding ◽  
Shallow Aquifer ◽  
Electrical Method ◽  
Groundwater Aquifers ◽  
Groundwater Aquifer ◽  
Bedrock Depth ◽  
Electrical Sounding ◽  
2D Resistivity

The identification of shallow groundwater aquifers is demanded to sustain the balance of utilization in agriculture and anticipate frictions that can occur due to the overlapping usage of groundwater resources. This study is aimed to identify the potential of groundwater resources based on the thickness and depth of the groundwater aquifer. Geoelectric resistivity methods have done with vertical electrical sounding (VES) and horizontal profiling techniques (2D mapping). The VES data acquisition was carried out with a Schlumberger array while 2D mapping by alpha Wenner array. Inversion results of vertical electrical sounding (VES) show that groundwater resistivity values in sedimentary rocks ranged from 1 to 100 ?m and in igneous rocks between 0.5 - 150 ?m. The results of 2D Resistivity Mapping also show that shallow aquifer depth ranged from 1 to 5 m with a thickness ranged from 15 m to more than 70 m. Meanwhile, bedrock depth ranged from 20 to 150 m with a pattern deeper to the west. Furthermore, the potential of groundwater aquifers in the development of irrigation wells for agriculture should be carried out in the western part of the study area.   Keywords: Groundwater, Shallow Aquifer, Rock Resistivity, Irrigation Well, Geo-Electrical Sounding.

scholarly journals Application of Vertical Electrical Sounding (VES) Method with Resistivity Meter Based on Boost Converter to Estimate the Potential of Groundwater Aquifers in Karang Anyar of Tarakan City

2020 ◽  
Vol 331 ◽  
pp. 06001
Author(s):  
Asta ◽  
Abdul Muis Prasetia
Keyword(s):  
Surface Water ◽  
Ground Water ◽  
Boost Converter ◽  
Vertical Electrical Sounding ◽  
Hydrogeological Conditions ◽  
Groundwater Aquifers ◽  
Electrical Sounding ◽  
Resistivity Meter ◽  
Water Catchment ◽  
Geological Formations

Water catchment research has been done in Karang Anyar of Tarakan City with the aim to estimate the potential of groundwater aquifers. Groundwater is more widely used to meet the needs because of its better quality compared to surface water. The groundwater distribution is not only described vertically, to find horizontally can be seen through the deployment of geological formations that act as aquifers. Vertical Electrical Sounding method is one method that can be used to predict geological and hydrogeological conditions. Based on geoelectric exploration using a resistivity meter based on boost converter shows the presence of groundwater in a depth of 7. 91-_44. 33 meters with resistance of 27. 22 Ωm and the estimated lithology is sand. According the research could determine that resources ground water in Karang Anyar village is prospectly.

Evaluation of Shallow Groundwater Quantity in Harbin by Numerical Modeling

2011 ◽  
Vol 255-260 ◽  
pp. 2745-2750
Author(s):  
Chang Lei Dai ◽  
Zhi Jun Li ◽  
Shao Min Du ◽  
Chun He Liu
Keyword(s):  
Numerical Modeling ◽  
Groundwater Modeling ◽  
Groundwater Resources ◽  
Shallow Groundwater ◽  
System Structure ◽  
Shallow Aquifer ◽  
Hydrogeological Model ◽  
Aquifer System ◽  
Structure Boundary ◽  
Groundwater Quantity

In order to complete the geological survey of Harbin, it is necessary to understand the regime and law of groundwater in Harbin with the method of groundwater numerical modeling which requires the evaluation of groundwater resources quantity as a basic and critical step. Based on the analysis of hydrogeological conditions of the shallow aquifer in Harbin which includes the characteristics of aquifer system structure, boundary conditions, groundwater regime and recharge and discharge, a conceptual hydrogeological model has been built up with GMS (Groundwater Modeling System). With the numerical simulation model transferred by the conceptual model, the total amounts of renewable groundwater resources under different precipitation frequencies have been calculated. The result not only illustrates that the shallow aquifer in Harbin has certain potential in development and utilization but also provides some reference for managing a highly precise groundwater quantity evaluation by groundwater numerical modeling techniques.

scholarly journals Active rock glaciers as shallow groundwater reservoirs, Austrian Alps

Grundwasser ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 215-230 ◽  
Author(s):  
Thomas Wagner ◽  
Alexander Brodacz ◽  
Karl Krainer ◽  
Gerfried Winkler
Keyword(s):  
Groundwater Resources ◽  
Water Discharge ◽  
Shallow Groundwater ◽  
Shallow Aquifer ◽  
Ground Ice ◽  
Discharge Data ◽  
Austrian Alps ◽  
Rock Glaciers ◽  
Permafrost Ground ◽  
Alpine Catchments

Abstract Rock glaciers are the most prominent landforms of alpine permafrost and comprise complex shallow aquifer systems in (high) alpine catchments. Recession analyses of groundwater discharge of four active rock glaciers that contain permafrost ground ice show that they have a base flow component of the order of a few liters per second, similar to that of a relict rock glacier in which permafrost ground ice is absent. This is related to an unfrozen (fine-grained) base layer with a thickness of about 10 m. Based on a threshold analysis of precipitation events and event water discharge, depressions atop the bedrock or the permafrost table seem to play only a minor role in storing groundwater. This important finding has rarely been documented, but is highly relevant for optimal groundwater resources management in sensitive (high) alpine catchments and ecosystems. All the rock glaciers analyzed here are located in the Austrian Alps and represent the nationwide sites where suitable discharge data are available. The analysis highlights the hydrogeological importance of these discrete permafrost-derived debris accumulations as complex shallow groundwater bodies with important—but limited—storage and buffer capabilities.

scholarly journals Determination of aquifer parameters using geoelectrical sounding and pumping test data in Khanewal District, Pakistan

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
Gulraiz Akhter ◽  
M. Hasan
Keyword(s):  
Test Data ◽  
Groundwater Resources ◽  
Pumping Test ◽  
Vertical Electrical Sounding ◽  
Analytical Relationship ◽  
Pumping Tests ◽  
Aquifer Parameters ◽  
Surface Measurements ◽  
Electrical Sounding

AbstractIn order to determine the groundwater resources and potentials of the Khanewal District of Pakistan, a geophysical method in combination with pumping test data were used. An analytical relationship between the aquifer parameters interpreted from surface geoelectrical method and pumping test was established in order to estimate aquifer parameters from surface measurements where no pumping tests exist. For the said purpose, 48 geoelectric investigations were carried out using Schlumberger vertical electrical sounding (VES). Seven of the soundings were conducted where pumping tests had been carried out at borehole sites. The vertical electrical sounding stations were interpreted, and resistivities and thickness parameters were calculated. The values of transmissivity and hydraulic conductivity were calculated using the Dar Zarrouk parameter. Transmissivity values obtained from pumping test data and the VES method range between 954 – 4263 m

scholarly journals Evaluating the Earth Subsurface for Civil Engineering Site Characterization in Agege, Southwest Nigeria Using Integrated Geoelectrical and Multichannel Analysis of Surface Wave (MASW)

2021 ◽  
pp. 1-11
Author(s):  
O. J. Airen ◽  
K. K. Oboshenure
Keyword(s):  
Surface Wave ◽  
Civil Engineering ◽  
Vertical Electrical Sounding ◽  
Geophysical Investigation ◽  
Clayey Sand ◽  
Engineering Structures ◽  
Geoelectric Section ◽  
Multichannel Analysis ◽  
Electrical Sounding ◽  
2D Resistivity

A geophysical investigation involving 1D Vertical Electrical Sounding (VES), 2D Electrical Resistivity Imaging (2D ERI) and Multichannel Analysis of Surface Wave (MASW) has been carried out at Agege, Lagos, Nigeria with a view to delineating the subsurface stratigraphy and locate some competent strata/stratum for founding civil engineering structures. Six (6) 200 m long traverses were established within the study area. Along these traverses, 2D ERI were carried out adopting Wenner electrode configuration. Vertical Electrical Sounding (VES) adopting Schlumberger electrode array were carried out at selected points along profiles 1, 2 and 3 to determine the lithological sequence at depth. MASW data also were acquired along traverses 1, 2 and 3. The data were processed and the result yielded interpretable 2D resistivity structure and geoelectrical parameters (layer resistivity, thicknesses and depth) from the VES. The interpreted VES results were used to generate geoelectric section while the MASW resulted in 2D velocity sections. Three subsoils including topsoil, clay and clayey sand/sand were delineated beneath the study area. The resistivity and thickness range of the layers are; topsoil (34.0-54.6 ohm-m, 0.9 – 1.7 m), clay (10.3 – 17.7 ohm-m, 8.9 – 12.3 m) and clayey sand/sand (48.9 – 323 ohm-m) while the S-wave velocity range for the subsoil falls between 40 – 500 m/sec.

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