Okba Raad Al Kadi

 


Department of Applied Science, ETAS 575

University of Arkansas at Little Rock

2801 S. University Avenue

Little Rock, Arkansas 72204

Tel:     501-626-5022

Fax:     501-569-8020

oralkadi@ualr.edu

okba101@hotmail.com

 

EMPLOYMENT OBJECTIVE

 


Near surface geophysical investigation, geotechnical application, environmental problems, and archaeological prospecting.

 

SUMMARY OF QUALIFICATIONS

 


·         Field work design and operation.

·         Comprehensive knowledge of Geophysical Instruments including Ground Penetrating Radar, Resistivity system, Magnetic, and Seismic stations.

·         Computer modeling and simulation.

·         Laboratory experimental on data acquisition.

·         Digital signal processing.

·         Earthquake seismology and Seismic monitoring.

 

EDUCATION

 


            B.Sc., Geophysics, University of Baghdad, Iraq (1984)

            M.Sc., Geophysics “Seismology”, University of Baghdad, Iraq (1990)

            Ph.D. Applied Science, August 2009, University of Arkansas, Little Rock, AR

            Dissertation title: “Geophysical Investigation of Paleoseismological Features”

 

 

 

 

AWARD

 


·         UALR College of Engineering and Information Technology (E.I.T.) Award for overall 4.0 GPA, 2006.

·         UALR College of Engineering and Information Technology (E.I.T.) Award for overall 3.9 GPA, 2006.

 

PROFESSIONAL EXPERIENCE

 


·         Research Assistant/ Teaching Assistant,  University of Arkansas at Little Rock, 2004 –2009

·         Coordinate the Geophysical Laboratory, Uni versity of Arkansas at Little Rock.

·         Trained Geophysical students on computer simulation, Geophysical equipments, and field surveys.

·         Coordinator of Computer Science Department, University of Baghdad, 1995-2004.

·         Teaching Assistant, University of Baghdad, 1993-2004.

·         Director, Power Plant site Investigation team, 1991-1992.

·         Research Assistant, University of Baghdad, 1989-1990.

·         Research Geophysicist, Geological Survey and Mineral Investigation Co., Iraq, 1987-1988.

 

SCIENTIFIC RESEARCH

 


·         Near Surface Geophysics

                        Comprehensives experience in near surface geophysical methods including seismic, magnetic, gravity, resistivity and Ground Penetrating Radar (GPR). These methods are non-invasive, trenchless tools, used to characterize the physical properties of the subsurface material. I implemented these methods to study geological, geotechnical, hydrological, archeological, and forensic problems. These implementations were coupled with advanced hardware, software, and image processing to enhance the data reduction and interpretation.

Comprehensive knowledge of synthetic simulation, laboratory experimentation, and fieldwork operation. For computer simulation, I implemented the Finite-Difference Time Domain (FDTD) techniques to synthesize GPR signals in different lithologic settings. The behavior of these signals was studied as they propagate through the subsurface and interact with different interfaces. The modeled interfaces are most useful for highway engineering such as clay-sand, soil-hard rock. Computer simulation provided convincing evidence that GPR technology is capable of predicting lithological changes both vertically and horizontally.

                        Well-controlled laboratory experiments conducted to simulate realistic subsurface setting. Models were constructed from different material, such as sand and concrete, to simulate near surface earth layering highway pavements, surface and subsurface faulting, and other earthquake related disruptions such sand blows. Modeling also included the detection of cavities and collapse pits. Hydrological conditions were accomplished through different combinations of water saturation of material.

                        Numerous geophysical field surveys were conducted to implement the computer simulation and laboratory experimentation to real earth conditions. The detection of underground cavities was investigated using laboratory measurements and field surveys. Investigations indicate the effectiveness of GPR in detecting such a feature. My implement to the advanced interactive three-dimensional imaging was instrumental in reaching accurate interpretation through the discovery of features that were not easily observed in regular two-dimensional images.

 

·         Paleoseismology

                       Conduct comprehensive geological and geophysical investigation to identify and characterize specific features related to historic and prehistoric earthquakes near the southern terminus of the New Madrid Seismic Zone in eastern Arkansas. Aerial and field surveys revealed the existence of liquefaction and linear features as far as south of Marianna, Arkansas. GPR data collected at numerous sites near Marianna, Arkansas, indicates that ground disturbance took place in the past.  This disturbance was in the form of surface subsidence, liquefaction, sand blows, and ground failure.  Common in all sites was the existence of sand dikes ranging in width between 1 and 4 meters.  These dikes represent a wider than normal zones where the liquefied sand was erupted to the surface creating sand blows. The thickness of the erupted homogenous sand ranges from a few centimeters to more than 3 meters.  The area covered by sand blows ranges from 100 by 150 meters to 200 by 600 meters.  This indicates that a huge amount of sand was erupted to the surface during a severe ground shaking which is a measure of the magnitude of the earthquake. Given the surface expression of a linear feature and the alignment of numerous sand blows along this feature, it is feasible to interpret this lineament to be most likely a fault structure that extends to the surface.  The interpretation is also supported by the alignment of the feeder dikes such that they coincide in both location and orientation with the linear feature.  It is also logical to indicate that it is possible that the fault controlled the location of these sand blows.

FOREIGN LANGUAGE

 

·         Fluent in Written and Spoken English and Arabic.

 

PUBLICATIONS

 


    •  Alsinawi Sahil A. and Al-Hadithi,O.R.(1994) “Microseismic Monitoring and Zoning of North Central Iraq” The 27th IASPEI General Assembly Meeting, Wellington, New Zealand, (Abstract)

 

    • Alsinawi, S.A. and Al-Hadithi, O.R. (1997): “Microseismic Monitoring and Zoning of North Central Iraq”. Proceedings of the Big Cities World Conference on Natural Disaster Mitigation and the 10th International Seminar on Earthquake Prognostics, Cairo, Egypt.

 

    • Al-Shukri, Haydar, Hussain Al-Rizzo, Basil Miller, and Okba Al Kadi, (2006), Finite Difference Time Domain Modeling of an RF-Based Technology for the Detection of Buried Pipes: the ground Penetrating Radar, “Wireless Communication Systems and Networks”, Palma de Mallorca, Spain.

 

    • Al-Shukri, Haydar, Hanan Mahdi, and Okba Al Kadi (2006), Application of Ground Penetrating Radar for near surface geology, Geophysics, Highway Transportation Meeting, St. Louis, MO.

 

    • Okba Al Kadi, Hanan Mahdi, Haydar Al-Shukri, (2008), Geophysical Investigation of Earthquake Induced Liquefaction Features (Paper accepted at the Highway Transportation Annual Meeting, Charlotte, NC).

 

    • Al-Shukri, Haydar, Hanan Mahdi, Okba Al Kadi, and Tuttle, Mrtitia, (2008), Geophysical Investigation of Earthquake Induced Paleoseismologyical Features, IGC, Oslo, Norway, (Paper accepted).

 

    • Okba Al Kadi, Hanan Mahdi, Haydar Al-Shukri, Tuttle, Mrtitia, (2009), Fault Delineation in the Lower Mississippi River Embayment Using Near Surface Geophysics (Paper accepted at the Seismological Society of America (SSA) Annual Meeting, Monterey, CA).

 

 

 

 

 

 

 

 

 

 

 

 

 

REFERENCES

 


Dr. Haydar Al-Shukri, Chair

Applied Science Department

University of Arkansas at Little Rock

2801 South University Avenue

Little Rock, AR 72204

Tel: 501-569-8000

Email: hjalshukri@ualr.edu 

 

Dr. Hanan Mahdi

Research professor

Graduate institute of Technology

University of Arkansas at Little Rock

 2801 South University Avenue

Little Rock, AR 72204

Tel: 501-569-8305

Email: mahdi@seismo.ualr.edu 

 

Dr. Keith Hudson, Director

Graduate institute of Technology

University of Arkansas at Little Rock

 2801 South University Avenue

Little Rock, AR 72204

Tel: 501-569-8211

Email: mkhudson@ualr.edu