Professional Information
- Title: Research Associate Professor
- BS, University of Baghdad
- MS, University of Baghdad
- PhD, St. Louis University
Contact Information
- Office Location: ETAS 101C
- Office Phone: 569-8305
- E-Mail: hhmahdi@ualr.edu
Professional Information
Contact Information
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Research Associate Professor, Graduate Institute of Technology, UALR, Little Rock, Arkansas, 2010-.
Research Assistant Professor, Graduate Institute of Technology, UALR, Little Rock, Arkansas, 2002-2010.
Visiting Assistant Professor, Earth Science Department, UALR, Little Rock, Arkansas, 2001-2002
Research Scientist, Graduate Institute of Technology, UALR, Little Rock, Arkansas, 1999-2001.
Staff Scientist, ENSCO, Inc. Melbourne, Florida, 1996-1998.
Research Assistant Professor, Southeast Missouri State University, 1994-1996.
Post-Doctoral Fellow, Indiana University, 1991-1994.
Research Assistant, Saint Louis University, 1989-1990.
Teaching Assistant, Saint Louis University, 1984-1988.
Research Geophysicist, Geological Survey and Mineral Investigation Co., Iraq, 1978-1982.
Instructor, Al-Mustansiriyah University, Iraq, 1977-1978.
Research Assistant, University of Baghdad, 1974-1976.
Seismology
I had been involved with the Research and Development program
to support the United States Air Force Technical Application Center (AFTAC) operational
mission of monitoring a Comprehensive Test Ban Treaty. The projects I had been involved
with included, signal enhancement, detection and onset time determination, better estimate
of surface wave magnitude, and characterization of seismic instrumentations as part of the
International Seismic Arrays Installation Program
Studying Scattering and multi-pathing effect on surface wave
propagation at regional distances in central Asia. The study uses broadband digital
seismic data recorded by Kyrghyzia network operated by IRIS Joint seismic
program since 1991. Single station and array processing techniques are both merged and utilized.
Studying spectral characteristics of earthquakes and
explosions recorded at regional and teleseismic distances for the purpose of
discriminating small earthquakes and explosions. One aspect of this analysis is
studying the spectral amplitudes of array beam of both earthquake and explosion
to examine the effect of different azimuths and stacking phase velocity on
surface wave amplitude spectrum. This is part of a study using array processing
methods to enhance signals in the 0.01 to 0.2 Hz band Analysis of the lateral and regional variation of seismic
wave velocity in the crust and upper mantle using seismic surface wave data and
utilizing inversion procedure to derive velocity models and to correlate them
with geological and tectonic setting of the region. This analysis has been
applied to derive velocity models for Western United States, Africa, central
Asia, and Lopnor, the Chinese nuclear test site. Studying the regional and lateral variation of anelasticity
to understand the evolution of the continental crust and upper mantle using
seismic surface wave attenuation. This investigation includes measurement of
anelastic attenuation coefficients and inversion of these measurements to
derive anelastic structural model and correlate it with the tectonic and
thermal history of a specific region. Near Surface Geophysics
I am actively involved in conducting shallow geophysical research for environmental,
archeological, highways and other subsurface problems. Ground Penetrating Radar (GPR)
and Electrical Resistivity methods are among the methods that are utilized for conducting this research.
Paleoseismology
Since 2000 I have been a member of a research team conducting a 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.
Field surveys in the study area have been conducted to locate features potentially
generated by earthquakes. We are planning to trench, log, sample, and document the
selected features. Ground penetrating radar (GPR) and electrical resistivity geophysical
surveys have been planed to be conducted before trenching the features Lunar Research The Electrostatics and Surface Physics Laboratory (ESPL) at
Kennedy Space Center has been actively involved in characterization of lunar dust
to understand the soil properties for lunar regolith. As a member of UALR team,
we are collaborating with ESPL in order to develop models for detecting the areas
with the largest concentration of ilmenite or other minerals of interest as part of
this research project. We are researching GPR as a method of detecting sub-surface
ilmenite on the Moon. The main goals of the research project will be to perform
synthetic computer modeling of GPR data for specific minerals that are present in
the lunar soil and are of interest to NASA for In-Situ Resource Utilization.
Laboratory measurement of GPR data for natural minerals and ores will be conducted.
The detection capability will be investigated for both percentage of mineral
concentration and depth. We will be using both lunar samples and samples collected
from geophysical fieldwork for natural deposits, mainly ilmenite in southwest Arkansas. Ring Laser Gyroscope The goal of this project is to adapt two established terrestrial
geophysical systems for the exploration of the moon and Mars. The first is ground
penetrating radar (GPR) system which is an ideal tool for identifying subsurface
geological features and the presence of water within a kilometer of the surface.
The second is a ring laser gyroscope system designed as a seismic wave detector.
Results from a large ring laser gyroscope north of Conway that is currently monitoring
seismic waves from earthquakes and atmospheric disturbances are being analyzed to determine
its applicability for monitoring seismic waves on the moon and Mars. The possibility
of using the ring laser and the GPR as systems for navigation prior to landing and then
as geophysical exploration tools will be explored. Monitoring Induced Seismicity in Central Arkansas Induced seismicity is earthquake cluster(s) that is activated
or triggered by human activities. There are ample evidences that water injection
affects the pore pressure and stress regime in the volume where the water is propagating
and triggering small to moderate size earthquakes. We proposed equipment integration and
installation of a 7 station array with three component sensors and radio telemetry equipment,
to monitor any induced seismic activity that might occur due to water injection activity in the area.
The sensors will be Geospace GS11d high output 4.5 Hz seismometers, installed in a waterproof PVC case.
Low power analog radio will be used to provide wireless data transfer to the central data acquisition
site from locations up to 20Km away. The central station will be very close to the injection well.
Each station will be provided with a 10ft antenna mast and a directional antenna as well as a
weatherproof fiberglass box that will house the battery and telemetry equipment. The
seismic signals will be digitally recorded with a 12 bit A to D board utilizing the USGS
earthworm recording and analysis system. Continuous data of this network will be
systematically analyzed and stored in multiple copies and be available for easy access.
Event data will be retrieved from the raw data and logged in a separate archive Dohuk Seismic Station, Iraq
The Arkansas Earthquake Center is currently collaborating with the University
of Dohuk/Iraq to install a state of the art seismic station. The project was
funded by DOE and the University of Dohuk. The installation is completed and
the seismometer installed in its permanent vault. Data start flowing and being
archived and analyzed continuously. Support the Arkansas Center for Earthquake Education and Technology Transfer (ACEETT)
to accomplish its public education mission by participating in the following activities:
1. provide earthquake workshops promoting seismic
safety, mitigation, education and planning for professional groups.
2. Disseminate earthquake information related to seismic education and technical training needs of the state.
3. Provide an enhanced internet seismic and technical database and educational resources for students and general public.
4. Provide assistance to professional education organizations, and scientific and technical groups concerning their needs
for seismic education and technology transfer.
Sallomy, J. T. and H. H. Al-Khatib (1986a). Basement tectonics in the Al-Salman
area, SW desert, Iraq, Arabian J.
Sc. Eng. 11, 77-85.
Sallomy, J. T. and H. H. Al-Khatib (1986b). Analysis of gravity and magnetic data in the
study of the structure and tectonics of the Arar area, SW desert, Iraq,Arabian
J. Sc. Eng.11, 213-224.
Al-Khatib, H.H. and B.J.Mitchell (1989). Lateral variation of anelasticity in the
upper mantle beneath the western United States from Rayleigh wave attenuation, EOS,
American Geophysical Union,70,401. (abstract).
Al-Khatib, H. H. and B. J. Mitchell (1991).
Upper mantle unelasticity and tectonic
evolution of the western United States, J. Geophys. Res. 96,1829-1846.
Mellors, R.J., H.H. Al-Khatib, H.J. Al-Shukri, G.L. Pavlis,
M.W. Hamburger, and F.L. Vernon (1992).
Preliminary Analysis of
Data from the Kirghizia Telemetered Broadband Seismic Network,EOS,
American Geophysical Union,(abstract).
Pavlis, G, H. Al-Shukri, H.H. Mahdi, D. Repin, F. Vernon
(1994). JSP arrays and networks in
Central Asia, IRIS Newsletter,9-12.
Pavlis, G.L., H.H. Mahdi, and F.L. Vernon (1994). Surface wave propagation in central Asia;
observations of scattering and multipathing with the Kerghys broadband array,
(abstract) 1994 AFOSR annual meeting.
Romer, S.A., H.H.Mahdi, H.J. Al-Shukri(1995). Preliminary
surface wave analysis of data from Kirghizia Broadband seismic network,
(abstract),1995 MAS meeting.
Mahdi,H.H.,
and G.L.Pavlis (1995). Crustal and uppermost mantle structure beneath Eastern
Tien Shan from Broadband surface wave data, (abstract),GSA 1995 meeting.
Pavlis,G.L., and H.H.Mahdi (1995). The spatial stability of
Rayleigh wave amplitudes and path dependent propagation characteristics of
central Asia, (abstract) 1995 AFOSR annual meeting.
Mahdi,H.H., and
G.L.Pavlis (1995). Spatial stability of Rayleigh wave amplitude and path
dependent stacking capabilities of the Kyrghystan Broadband Network, (abstract)
1995 AGU fall meeting.
Pavlis,G.L., H.H.Mahdi (1996). surface wave propagation in
central Asia: Observations of scattering and multipathing with the Krygyz
Broadband Array, J. Geophys.Res.,101,8437-8455.
Mahdi,H.H., and
G.L.Pavlis (1996). Lateral velocity variations in the crust and upper mantle
beneath the Tien Shan from surface wave: Implications for tectonic and dynamic
processes, (abstract) 1996 SSA annual meeting.
Al-Shukri, H.J., H.H. Mahdi, and K.D. Hutchenson (1997). Evaluation of the F-statistics Onset-time
Estimator, ENSCO Inc. Final Technical Report, ARS 97-069.
Al-Shukri, H.J., H.H. Mahdi, and K.D. Hutchenson
(1997). Signal Detection Using
Covariance Matrix of Array Data,(abstract) AGU Fall Meeting.
Mahdi,H.H., and
G.L.Pavlis (1998). Lateral velocity variations in the crust and upper mantle
beneath the Tien Shan from surface wave: Implications for tectonic and dynamic
processes. J. Geophys. Res., 103, 2693 -2703.
Mahdi, H.H., and
K.D. Hutchenson (1998). Test and Evaluation of the Long Period Surface Wave
Multi-signal Processor, ENSCO Inc. Final Technical Report, ARS-98.
Al-Shukri, HJ, Lemmer,
R., Connelly, J, Mahdi, H, and Egan, M. (2000). Paleoseismic Features in the Southern
Terminus of the New Madrid Seismic Zone, EOS, Transaction of the America
Geophysical Union, 81, No.48, PF857 (abstract).
Hanan H. Mahdi, Haydar J. Al-Shukri, Robert E. Lemmer, Jeffrey B. Connelly, and Michael
B. E. Bograd (2001).
Investigation of possible paleoliquefaction features in Mississippi, Mississippi Academy of Science Annual
Meeting.
Robert E. Lemmer, Haydar J. Al-Shukri, Jeffrey B. Connelly, and Hanan
H. Mahdi (2001). Liquefaction
and other possible seismogenic features southwest of the New Madrid seismic
zone in eastern Arkansas, Preceding of the Mississippi Academy of Science
Annual Meeting.
Al-Shukri, H.J.,
Lemmer, R.E., Mahdi, H.H., and Connelly, J.B.(2001). spatial and temporal characteristics of
paleoseismic features in the southern terminus of the new madrid seismic zone
in eastern Arkansas,(abstract), Seismological Society of
America annual meeting, San Francisco, CA.
Connelly, Jeffrey B., Hanan H. Mahdi,
Robert E. Lemmer, Marilyn Egan,
and Haydar J. Al-Shukri,(2001). paleoseismic features
in the southern part of the new madrid seismic zone, Arkansas Academy of
Science Annual Meeting.(abstract).
Sami Eyuboglu, Hanan H. Mahdi,
,
and Haydar J. Al-Shukri,(2003). Detection of Water Leaks
using Ground Penetrating Radar, the 3rd International Conference on Applied Geophysics.
(abstract).
Al-Shukri, HJ, Hanan Mahdi, Martitia P. Tuttle and (2003). Spatial and Temporal Characteristics of Paleoseismic Features in the Southern Terminus of the New Madrid Seismic Zone in Eastern Arkansas, United States Geological Survey, 03HQGR0050
Al-Shukri, HJ, Hanan Mahdi, Dawood Mahmood, and Nawal Alridha (2004) Current Status and Future Planning for Earthquake Monitoring in Iraq, Gulf Seismic Forum, United Arab Emirates
Sami Eyuboglu, Hanan Mahdi, and Haydar Al-Shukri (2004). Ground Penetrating Radar: A Geophysical Tool to Search for Water on Mars, IEEE Trans Geoscience and Remote Sensing.
Al-Shukri, HJ, and Hanan Mahdi (2004). Detection of water leak using Ground Penetrating Radar, Central Arkansas Water, Little Rock, Arkansas
Sami Eyuboglu, Hanan Mahdi, and Haydar Al-Shukri (2004). Detection of Water Leak Using Ground Penetrating Radar, Geophysics.
Al-Shukri, HJ, Hanan Mahdi, and Dawood Mahmood (2005). Rebuilding Iraqi Seismic Data Center and Earthquake Network, Gulf Seismic Forum-II, Al-Ain, UAE.
Mahdi, Hanan, Martitia P. Tuttle, and Haydar Al-Shukri (2005). 3-d imaging of earthquake-induced liquefaction features with ground penetrating radar , Seismological Society of America, Eastern Section Annual Meeting, Memphis, TN.
Martitia P. Tuttle, Hanan Mahdi, and Haydar Al-Shukri (2005). Very Large Earthquakes Centered Southwest of the New Madrid Seismic Zone 5,000-7,000 Years Ago, Seismological Society of America, Eastern Section Annual Meeting.
Al-Shukri, Haydar, Sami Eyuboglu, and Hanan Mahdi (2005). Water leak detection by using ground penetrating radar, synthetic simulation and four-dimensional visualization, American Geophysical Union Annual Meeting.
Al-Shukri Haydar J., Robert E. Lemmer, Hanan H. Mahdi, and Jeffrey B. Connelly (2005). Spatial and Temporal Characteristics of Paleoseismic Features in the Southern Terminus of the New Madrid Seismic Zone in Eastern Arkansas, Seismo. Research Lett.. 76, 502-511.
Al-Shukri, Haydar, Hanan Mahdi, and Martitia Tutule (2006). Three-Dimensional Imaging of Earthquake-induced Features with Ground Penetrating Radar, Near Marianna, Arkansas, Seismo, Res, Lett, 77, 505-513.
Al-Shukri, Haydar, Hanan Mahdi,, and Okba Al Kadi (2006). Application of Ground Penetrating Radar for Near Surface Geology, Highway Geophysics-NDE Conference, 19p,
Tuttle, Martitia, Hanan Mahdi, and Haydar Al-Shukri (2006). Very Large Earthquakes Centered Southwest of the New Madrid Seismic Zone 5,000-7,000 Years Ago, Seismo, Res, Lett, 77, 664-678.
Al-Shukri, Haydar, Hanan Mahdi, and Martitia Tuttle (2006). Big earthquake can occur in unexpected places, Gulf Seismic Forum-III, Muscat, Oman.
Gok, R, H. Mahdi, H. Al-Shukri and A. Rodgers(2007). Crustal structure of Iraq from receiver functions and surface wave dispersion, Gulf Seismic Forum-V, Kuwait City, Kuwait.
Numan, N, H. Mahdi, and H. Al-Shukri(2007). Seismotectonics of northern Iraq, Gulf Seismic Forum-V, Kuwait City, Kuwait.
Gok, Rengin, Hanan Mahdi, Haydar Al-Shukri, and Arthur J. Rodgers (2007). Crustal Structure of Iraq from Receiver Functions and Surface Wave Dispersion, Geophysical Journal International. 171, 10 pages.
Al-Shukri, HJ, HH, Mahdi, O. Al-kadi, and M, Tuttle(2008). Geophysical investigation of earthquake induced paleoseismological features, 33rd IGC, Oslo, Norway.
Al Kadi, Okba, Hanan Mahdi, and Haydar Al-Shukri (2008) Geophysical Investigation of Earthquake Induced Liquefaction Features, East Central Arkansas, The Fifth Highway Geophysics Conference, NC, USA, 431-445.
Al-Shukri, Mahdi, Biris, Dunn, Trigwell, Arens (2008). Noninvasive Lunar prospecting for ore and minerals, NASA-EPSCoR, Technical Report
Dunn, Mahdi, and Al-Shukri (2009). Design of a relatively inexpensive Ring
Laser Seismic Detector, BSSA,V99,PP1437-1442