Hydrogeochemical and vertical electrical soundings for groundwater investigations, Burg El-Arab area, Northwestern Coast of Egypt

Atwia, Mohamed G.; Abu-Heleika, Mohamed M.; El-Horiny, Mohamed M.

doi:10.1016/j.jafrearsci.2012.11.001

Cited by 18 publications

(8 citation statements)

References 3 publications

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“…Wenner Wenner has equal spacing between the electrodes [16], [17]. Meanwhile, Schlumberger has twice or more spacing between the potential electrode to the current electrode [18], [19].…”

Section: B Geoelectrical Resistivity Aquisitionmentioning

confidence: 99%

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

Rustadi

Purwadi²,

Darmawan³

2020

jesr

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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.

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“…Wenner Wenner has equal spacing between the electrodes [16], [17]. Meanwhile, Schlumberger has twice or more spacing between the potential electrode to the current electrode [18], [19].…”

Section: B Geoelectrical Resistivity Aquisitionmentioning

confidence: 99%

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

Rustadi

Purwadi²,

Darmawan³

2020

jesr

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“…For low doses ICRP proposes nominal probability coefficient for detriment adjusted cancer risk as 5.5× 10 -5 mSv -1 for the whole population. The annual cancer risk was estimated using the following equation 6 (7), (10) :…”

Section: Radiological Risk Characterizations:-mentioning

confidence: 99%

Risk Assessment of Radionuclides in Groundwater in Siwa Oasis, Egypt.

Saleh¹,

Elnaggar²,

Ibrahim³

2016

IJAR

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In this study eleven groundwater sources includes wells and springs in Siwa oasis, Egypt were subjected to radioactivity measurement and assessment during the period from June (2014) to July (2014). Siwa oasis located 65 km east of the Libyan frontier and 300 km south of the Mediterranean coast and around 800 km west Cairo. The collected water samples were acidified in the field then transferred to radiation measurement laboratory at Institute of Graduate Studies and Research, Alexandria University. The samples were prepared for gamma rays spectroscopic analysis by high purity germanium gamma rays spectrometer. Radionuclides 238 U, 226 Ra, 228 Ra, 40 K measurements were performed according to method of IAEA. The obtained radioactivity concentrations displayed ranges (2.3-11.28)Bq/L,(0.08-7.47) Bq/L, (0.472-4.1) Bq/L, and (0.0245-5.33) Bq/L for 238 U, 226 Ra, 228 Ra and 40 K, respectively. Radiological effects due to internal radiation exposure via drinking water from studied wells indicated annual effective doses ranged from 0.71mSv/year to 3.79mSv/year. Lifetime cancer risk and genetic risk due to these radiation levels were calculated to be ranged from2749× 10-6 to14592× 10-6 and from 499× 10-6 to 2653 × 10-6 for cancer risk and genetic risk, respectively.

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“…The basic idea of Burg algorithm is to use linear predictor to directly calculate the total mean square error of the forward and backward predictions of the observed data, keep the total mean square error minimal in order to estimate the reflection coefficient, and then find the optimizing parameters for AR model through the recursive formula of L-D algorithm [15]. For N observed data x(0), x(1), …, x(N-1), the algorithm executes in the flow presented by Figure 3.…”

Section: Burg Algorithm-based Ar Spectrum Estimationmentioning

confidence: 99%

Study of Autoregressive (AR) Spectrum Estimation Algorithm for Vibration Signals of Industrial Steam Turbines

Huang¹

2014

IJCA

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Hydrogeochemical and vertical electrical soundings for groundwater investigations, Burg El-Arab area, Northwestern Coast of Egypt

Cited by 18 publications

References 3 publications

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

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

Risk Assessment of Radionuclides in Groundwater in Siwa Oasis, Egypt.

Study of Autoregressive (AR) Spectrum Estimation Algorithm for Vibration Signals of Industrial Steam Turbines

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