A. Murad

Mustansiriyah University

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Ala Aldahan

United Arab Emirates University

Saber Hussein

University of Technology - Iraq

Dalal Alshamsi

United Arab Emirates University

Peng Yi

Hohai University

Ling Xiong

Xihua University

Ahmed M. M. Gabr

Academy of Scientific Research and Technology

Zhongbo Yu

Hohai University

H. A. Baker

Brigham Young University

Khalid ElHaj

United Arab Emirates University

Xuegao Chen

Hohai University

Cooperative Institutions

United Arab Emirates University

Hohai University

State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering

Uppsala University

Chinese Academy of Sciences

Technical University of Denmark

Institute of Earth Environment

Peking University

Stockholm University

University of Copenhagen

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Geoforensic and Legal Aspects of Site Investigations

Proceedings (2013)

A. El Saiy Ala Aldahan A. Murad Henry K. Baker Saber Hussein

Use of geological information as clue for identifying responsibility of an engineering problem related to construction, land use and water resource management can provide significant help to the legal system. Flooding of basements in several houses in a residential area located in Al Ain city occurred in a more or less chaotic pattern. Results of the geoforensic investigationindicate that houses that are accidently built on the gravel paleochannel had their basement flooded compared to those lying outside the channel. Thus when it comes to the legal aspect of the case, then the nature geological conditions have contributed to the damage and not the construction practices.

Palaeochannel

Basement

10.3997/2214-4609.20131937

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Hydrogeological and Geophysical investigations of a Pilot Area between Jabal Hafit and Oman Border, Al Ain, UAE

A. Murad Saber Hussein Ahmed M. M. Gabr H. A. Baker Khalid Al Bloushi

Summary A pilot area in Al Ain City, United Arab Emirates (UAE), located between Jabal Hafit to the west and Oman border to the east has been selected for the study of variability in groundwater conditions. Many wadies run through the area and are originated from the Oman Mountains ranges, which form the main catchment for both surface and groundwater. Subsurface and subsurface investigations of these wadies are vital for better understanding of the aquifer system condition and groundwater sustainability. It is believed that the recent wadies alluviums follow the configuration of ancient paleochannels thus provides interesting extended aquifers at depth. In these Quaternary alluviums, which are composed of a mixture of gravel, sand and clay beds, the groundwater level depth varies from 5 m to 80 m having maximum depth nearby Hafit Mountain and the minimum in the eastern side closed to Oman Mountains. Transmissivity of the alluvium aquifer varies between about 1837 m2/day in the unconfined and 2449 m2/day in the confined with corresponding permeability values at 30 m/day and 40 m/day respectively. The two dimensional (2D) Electrical Resistivity Tomography (ERT) profiles measured across selected wadies confirm the spatial extension of the Quaternary deposits. Qualitative and quantitative interpretation of the processed data indicated different hydrostratigraphic units of the alluvium section which may represent ancient paleochannels.

10.1190/iceg2015-059

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Isotopic and Radioactivity Fingerprinting of Groundwater in the United Arab Emirates

A. Murad Ala Aldahan Xiaolin Hou Saber Hussein Göran Possnert

Source

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Variability of 10Be and δ18O in snow pits from Greenland and a surface traverse from Antarctica

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (2012)

Ann-Marie Berggren Ala Aldahan Göran Possnert Margareta Hansson Hans Christian Steen‐Larsen

Groenlandia

δ18O

Ice core

Greenland ice sheet

10.1016/j.nimb.2012.05.041

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Citations (5)

Carbon isotopes as tracers of groundwater recharge in the eastern UAE

Kaifang Ji Saddam Husein Xuegao Chen Peng Yi Ling Xiong

The isotopes of carbon (C-12, C-13 and C-14) were analyzed for groundwater samples collected from actively used wells in a recharge area along the borders between UAE and Oman. This region is characterized by arid climate conditions with average annual temperature and rainfall of 28°C and < 100 mm respectively. The groundwater occurs in mainly clastic sediment aquifers and has variable salinity (< 1000 to > 15000 mg/L). The analyses of carbon isotopes were performed using conventional mass spectrometry (C-12 and C-13) and accelerator mass spectrometry (C-14). The results reveal a range of δ13C at −5.2 to −12.6 ‰ (VPDB) and C-14 activity at 35.7 -74.8 % pMC. The range of carbon isotopes suggest extensive alteration of the recharge water (rainfall with C-14 activity at 97.1% pMC) by interaction with the aquifer materials (mainly minerals and organic matters). Estimation of groundwater ages suggests modern recharge (< 100 years). This rather rapid recharge indicates the possibility for environmentally sustainable groundwater management in the region through maintaining balance between recharge and abstraction quantity

Environmental isotopes

Depression-focused recharge

10.1190/iceg2019-039.1

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Groundwater Table Determination by using Seismic Refraction Technique in Northwestern Part of Jabal Hafit Area, UAE

Proceedings (2011)

A. Murad H. A. Baker Saber Hussein Ahmed M. M. Gabr

Seismic refraction technique has been adapted to investigate the groundwater in a pilot area nearby Jabal Hafit in the southeast of the UAE. In this work, the groundwater level and the structure framework of the area been systemized. The measured water level in different wells used as control points. The results of these measurements used to confirm that the groundwater level could primarily revealed by seismic refraction in the gravely-sands or silty-clay areas. The groundwater level can be determined as a boundary of acoustic impedance by seismic refraction method [1]. When the electric properties of near surface sand and clay beds investigated, a principal obstacle recognized in applying the method of resistivity measurement to problems of water exploration. Namely, the dissociated ions of adhesive water, being an electrolyte in the case of both sand and clay, give a relatively good electric conductivity even to the "dry" ground, which will not be significantly altered by the saturation of the pore volume by groundwater. Regardless of several exceptional cases, the groundwater level does not behave as an electric boundary and cannotlocate by the method of resistivity measurement. The possibility of using the seismic refraction method determined by the elastic properties of the near surface layers [1].

Seismic refraction

10.3997/2214-4609.20143972

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Citations (3)

Natural radioactivity in groundwater from the south-eastern Arabian Peninsula and environmental implications

Environmental Monitoring and Assessment (2014)

A. Murad Xudong Zhou Peng Yi Dalal Alshamsi Ala Aldahan

Peninsula

Natural radioactivity

10.1007/s10661-014-3846-y

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Citations (16)

Geospatial stable isotopes signatures of groundwater in United Arab Emirates using machine learning

Journal of Hydrology Regional Studies (2024)

Jinzhu Fang Yibo Yang Peng Yi Ling Xiong Jijie Shen

Geomatics

10.1016/j.ejrh.2024.101938

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Quality assessment of groundwater from the south-eastern Arabian Peninsula

Environmental Monitoring and Assessment (2017)

H. W. Zhang Yanxin Sun Yong Li Xudong Zhou X. Z. Tang

Peninsula

10.1007/s10661-017-6092-2

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A review of stable oxygen and hydrogen isotopes in groundwater of the UAE and environmental impact

Mahmoud Abu Saima Khalid ElHaj Dalal Alshamsi Saeda Estwani Hamda Almansoori

The stable isotopes of water molecules can be a powerful tool to track water fluxes in different compartments of the environmental systems and interactions between the water system, soil, and biota. Different processes, chemical and biochemical, are commonly involved in the transfer of water molecules in these natural compartments. In this study, we summarize available data on oxygen and hydrogen isotopes in groundwater of the UAE. The data of the isotopes in groundwater system of the UAE indicate a range of -13‰ to 7‰ and at -45‰ to 45‰ for δ18O and δ2H respectively and this range distribution can be classified into four zones. The variability of the isotopic compositions relates to the geographic location and proximity to the source recharge area (Hajar Mountains). Fractionation due to excessive evaporation in arid climate and interaction between aquifers and age of the groundwater are other factors affecting the groundwater stable isotopes. The results indicate the need for further research on the stable isotopes of the water to better understand the effect of the controlling factors and related groundwater evolution with the different environmental conditions.

10.1190/iceg2023-068.1

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