A5072765914- Geophysics and Gravity Measurements
- GNSS positioning and interference
- Geomagnetism and Paleomagnetism Studies
- Statistical and numerical algorithms
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Soil Moisture and Remote Sensing
- Inertial Sensor and Navigation
- Geophysical and Geoelectrical Methods
- Computational Physics and Python Applications
- Geophysical Methods and Applications
- Scientific Research and Discoveries
- earthquake and tectonic studies
- Speech and Audio Processing
- Geological and Geophysical Studies
- Advanced Adaptive Filtering Techniques
- Landslides and related hazards
- Groundwater and Watershed Analysis
- Soil and Land Suitability Analysis
- Soil erosion and sediment transport
- Geological formations and processes
- Soil Geostatistics and Mapping
- Hydrology and Watershed Management Studies
- Direction-of-Arrival Estimation Techniques
- Climate variability and models
- Coastal and Marine Dynamics
Louisiana State University
2019-2025
Darmstadt University of Applied Sciences
2025
Abu Dhabi National Oil (United Arab Emirates)
2024-2025
University of Khartoum
2015-2017
Omdurman Islamic University
2015-2016
National Centre for Research
2015
University of Otago
2010-2013
Subsidence in southeastern Louisiana is a significant geological issue caused by natural and human-induced factors like low-lying topography groundwater pumping. Human activities also led to coastal land loss reduced sediment supply. Satellite-based technologies such as Global Navigation Satellite Systems (GNSS) Interferometric Synthetic Aperture Radar (InSAR) are used monitor subsidence. has about 130 continuously operating reference stations (CORS) monitoring subsidence statewide. GNSS...
ABSTRACT Climate change and Land Use Cover Change (LULCC) impact on rainfall runoff is globally evident. However, flash flood impacts drylands are rarely investigated. A comparable watershed in the dryland of Sudan experienced devastating for last four decades (1980s–2020s). The unexpected severity 2013 prompted an investigation into hydrologic LULCC to determine its cause. We combined spatial cloud computing with hydrological analysis investigate relationship between peri‐hydrological...
Abstract This Paper describes a method to reduce downtime at ADNOC Offshore’ s facilities during critical well work-over and interventions. It introduces the first-ever On-Demand Remote Controlled Barrier valve for approaching offshore rigs details use of new technology. The article will analyze benefits On-demand barrier compared traditional plugging methods explore expected improvements in operational efficiency. Company protocols rig or barge approach wellhead towers mandate each well,...
Few studies have used crustal displacements sensed by the Global Positioning System (GPS) to assess terrestrial water storage (TWS), which causes loadings. Furthermore, no study has investigated feasibility of using GPS image TWS over South America (SA), contains world’s driest (Atacama Desert) and wettest (Amazon Basin) regions. This work presents a resolution analysis an inversion data SA. Firstly, synthetic experiments were verify spatial resolutions GPS-imaged examine resolving...
One of the fundamental problems in quantum gravity is to describe experience a gravitating observer generic spacetimes. In this paper, we develop framework for describing non-perturbative physics relative an using gravitational path integral. We apply our proposal that lives closed universe and one falls behind black hole horizon. find Hilbert space describes much larger than absence observer. case universes, not one-dimensional, as calculations suggest. Rather, its dimension scales...
Land subsidence represents a critical geohazard, significantly impacting regions such as Louisiana's Capital Area, where combination of natural processes and anthropogenic activities exacerbates land deformation. This study develops high-resolution susceptibility mapping framework by integrating Interferometric Synthetic Aperture Radar (InSAR) data, geostatistical methods, advanced machine learning algorithms. The research explicitly addresses deformation across East Baton Rouge, West...
The spherical harmonic representation of the gravitational field quantities generated by ice density contrast We derive expressions for computing stripping corrections to topography corrected gravity means harmonics. in spectral utilize two types functions, namely height functions and newly introduced lower-bound functions. describe global geometry upper topographic bound. combined with thickness continental sheet. derived formulas are utilized forward modelling contrast. 30×30 arc-sec...
We compile a new geoid model at the computation area of New Zealand and its continental shelf using method developed Royal Institute Technology (KTH) in Stockholm. This utilizes least-squares modification Stokes integral for biased, unbiased, optimum stochastic solutions. The modified Bruns-Stokes combines regional terrestrial gravity data with global geopotential (GGM). Four additive corrections are calculated applied to approximate heights order obtain gravimetric geoid. These four account...
Validation of recent GOCE/GRACE geopotential models over Khartoum state - Sudan This paper evaluates a number latest releases global (GGMs) using the GPS-levelling geometric geoid heights, terrestrial gravity data and existing local gravimetric models. We investigate each model at every 5 degree spherical harmonics. Our analysis shows that satellite-only derived by space-wise time-wise approaches (SPW_R1, SPW_R2 TIM_R1 TIM_R2), GOCO01S together with EGM08 (combined model) are very distinct...
A gravimetric geoid model (SAGEO13) is computed for the Kingdom of Saudi Arabia using a rigorous stochastic computational method. The methodology based on combination least-squares (LS) modification Stokes’ formula and additive corrections topographic, ellipsoidal, atmospheric, downward continuation effects solution. In this study, we used terrestrial gravity data, digital elevation (SRTM3), seven global geopotential models (GGMs) to compute new Arabia. coefficients are derived optimisation...
Combined approach for the unification of levelling networks in New Zealand The is done using a combined approach. It utilises joint network adjustment and geopotential-value normal gravity data are used at South North Islands while fixing heights tide gauges Dunedin Wellington. results reveal good quality data; STD residuals 2 mm whole country. comparison newly determined original normal-orthometric confirms presence large local vertical datum offsets systematic errors. Since based on...
We employ local levelling data to assess the global digital elevation model (DEM) from Shuttle Radar Topography Mission (SRTM3) over Khartoum State area. A linear convolution low-pass Gaussian filter is employed reduce noise inherited in DEMs. The main sources of are likely propagated during collection due different impacts that may cause sensor noise. systematic errors differences between DEM-based and heights removed by using 4-parameter third order polynomial models. Both models have...
Application of the BEM approach for a determination regional marine geoid model and mean dynamic topography in Southwest Pacific Ocean Tasman Sea We apply novel gravimetric modelling which utilise boundary element method (BEM). The direct formulation Laplace equation is applied to obtain numerical solution linearised fixed boundary-value problem points at Earth's surface. scheme uses collocation with linear basis functions. It involves discretisation surface considered as boundary. gravity...
Abstract We evaluate the new regional quasigeoid model (OTG12) for New Zealand using method which utilises discretised integral equation approach computing near-zone contribution. The far-zone contribution is computed by modified spherical harmonics of geopotential. Adopting remove-compute-restore computation scheme, near- and contributions are residual height anomalies, while reference anomalies evaluated a global gravitational model. For numerical realisation, GOCO-02S coefficients...
We compile a quasigeoid model at the study area of New Zealand using theboundary element method (BEM). The direct BEM formulation for Laplace equationis applied to obtain numerical solution linearized fixed gravimetric boundaryvalueproblem in points Earth’s surface. scheme uses collocationmethod with linear basis functions. It involves discretisation surfacewhich is considered as boundary. surface gravity disturbances represent theoblique derivative boundary condition. geocentric positions...