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All Outputs (41)

Remote Monitoring of the Impact of Oil Spills on Vegetation in the Niger Delta, Nigeria (2025)
Journal Article
Kuta, A. A., Grebby, S., & Boyd, D. S. (2025). Remote Monitoring of the Impact of Oil Spills on Vegetation in the Niger Delta, Nigeria. Applied Sciences, 15(1), Article 338. https://doi.org/10.3390/app15010338

The widespread oil extraction in the Niger Delta and the impacts on different types of vegetation are poorly understood due to lack of ground access. This study aims to determine the impact of oil spills on vegetation in the Niger Delta using a Lands... Read More about Remote Monitoring of the Impact of Oil Spills on Vegetation in the Niger Delta, Nigeria.

Monitoring the risk of a tailings dam collapse through spectral analysis of satellite InSAR time-series data (2024)
Journal Article
Das, S., Priyadarshana, A., & Grebby, S. (2024). Monitoring the risk of a tailings dam collapse through spectral analysis of satellite InSAR time-series data. Stochastic Environmental Research and Risk Assessment, 38(8), 2911-2926. https://doi.org/10.1007/s00477-024-02713-3

Slope failures possess destructive power that can cause significant damage to both life and infrastructure. Monitoring slopes prone to instabilities is therefore critical in mitigating the risk posed by their failure. The purpose of slope monitoring... Read More about Monitoring the risk of a tailings dam collapse through spectral analysis of satellite InSAR time-series data.

Coastal Sediment Grain Size Estimates on Gravel Beaches Using Satellite Synthetic Aperture Radar (SAR) (2024)
Journal Article
Mann, S., Novellino, A., Hussain, E., Grebby, S., Bateson, L., Capsey, A., & Marsh, S. (2024). Coastal Sediment Grain Size Estimates on Gravel Beaches Using Satellite Synthetic Aperture Radar (SAR). Remote Sensing, 16(10), Article 1763. https://doi.org/10.3390/rs16101763

Coastal sediment grain size is an important factor in determining coastal morphodynamics. In this study, we explore a novel approach for retrieving the median sediment grain size (D50) of gravel-dominated beaches using Synthetic Aperture Radar (SAR)... Read More about Coastal Sediment Grain Size Estimates on Gravel Beaches Using Satellite Synthetic Aperture Radar (SAR).

Assessment of land degradation risks in the Loess Plateau (2024)
Journal Article
Yu, Z., Deng, X., Fu, P., Grebby, S., & Mangi, E. (2024). Assessment of land degradation risks in the Loess Plateau. Land Degradation and Development, 35(7), 2409-2424. https://doi.org/10.1002/ldr.5069

Human activity and climate change are degrading the environmentally fragile Loess Plateau in dry and semiarid regions. Land deterioration threatens human and ecological existence. To prevent additional land degradation and ensure the ecological devel... Read More about Assessment of land degradation risks in the Loess Plateau.

The performance of speckle filters on Copernicus Sentinel-1 SAR images containing natural oil slicks (2023)
Journal Article
Vrînceanu, C. A., Grebby, S., & Marsh, S. (2023). The performance of speckle filters on Copernicus Sentinel-1 SAR images containing natural oil slicks. Quarterly Journal of Engineering Geology and Hydrogeology, 56(3), Article qjegh2022-046. https://doi.org/10.1144/qjegh2022-046

Synthetic Aperture Radar (SAR) is traditionally used in the identification, mapping, and analysis of petroleum slicks, regardless of their origin. On SAR images, oil slicks appear as dark patches that contrast with the brightness of the surrounding s... Read More about The performance of speckle filters on Copernicus Sentinel-1 SAR images containing natural oil slicks.

Remote monitoring of minewater rebound and environmental risk using satellite radar interferometry (2022)
Journal Article
Gee, D., Sowter, A., Athab, A., Grebby, S., Wu, Z., & Boiko, K. (2023). Remote monitoring of minewater rebound and environmental risk using satellite radar interferometry. Science of the Total Environment, 857, Article 159272. https://doi.org/10.1016/j.scitotenv.2022.159272

The cessation of dewatering following coalfield abandonment results in the rise of minewater, which can create significant changes in the local and regional hydrogeological regime. Monitoring such change is challenging but essential to avoiding detri... Read More about Remote monitoring of minewater rebound and environmental risk using satellite radar interferometry.

Impact of meteorological conditions on water resources in the Upper East Region of Ghana using remotely-sensed and modelled hydrological data (2022)
Journal Article
Kelly, C. I., Hancock, C. M., Grebby, S., Marsh, S., Ferreira, V. G., & Hamm, N. A. (2022). Impact of meteorological conditions on water resources in the Upper East Region of Ghana using remotely-sensed and modelled hydrological data. Journal of Hydrology Regional Studies, 42, Article 101124. https://doi.org/10.1016/j.ejrh.2022.101124

Study region: The Upper East Region, Ghana, West Africa, lies within the Volta Basin, floods annually, and contributes substantially to Ghana's food production. Study focus: We assessed precipitation (P), evapotranspiration (ET), and total water stor... Read More about Impact of meteorological conditions on water resources in the Upper East Region of Ghana using remotely-sensed and modelled hydrological data.

Water Saturation and Distribution Variation in Coal Reservoirs: Intrusion and Drainage Experiments Using One- and Two-Dimensional NMR Techniques (2022)
Journal Article
Zhang, J., Hu, Q., Chang, X., Qin, Z., Zhang, X., Marsh, S., Grebby, S., & Agarwal, V. (2022). Water Saturation and Distribution Variation in Coal Reservoirs: Intrusion and Drainage Experiments Using One- and Two-Dimensional NMR Techniques. Energy and Fuels, 36(12), 6130-6143. https://doi.org/10.1021/acs.energyfuels.2c00592

Determining water occurrence in pore-fracture systems under specific water saturation is of great significance to reveal the correlation between the water content and porosity/permeability of coal reservoirs. In this work, simulation experiments of w... Read More about Water Saturation and Distribution Variation in Coal Reservoirs: Intrusion and Drainage Experiments Using One- and Two-Dimensional NMR Techniques.

Detailed Three-Dimensional Building Façade Reconstruction: A Review on Applications, Data and Technologies (2022)
Journal Article
Klimkowska, A., Cavazzi, S., Leach, R., & Grebby, S. (2022). Detailed Three-Dimensional Building Façade Reconstruction: A Review on Applications, Data and Technologies. Remote Sensing, 14(11), 2579. https://doi.org/10.3390/rs14112579

Urban environments are regions of complex and diverse architecture. Their reconstruction and representation as three-dimensional city models have attracted the attention of many researchers and industry specialists, as they increasingly recognise the... Read More about Detailed Three-Dimensional Building Façade Reconstruction: A Review on Applications, Data and Technologies.

Annual 30-m big Lake Maps of the Tibetan Plateau in 1991–2018 (2022)
Journal Article
Zhao, R., Fu, P., Zhou, Y., Xiao, X., Grebby, S., Zhang, G., & Dong, J. (2022). Annual 30-m big Lake Maps of the Tibetan Plateau in 1991–2018. Scientific Data, 9, 1-9. https://doi.org/10.1038/s41597-022-01275-9

Lake systems on the Tibetan Plateau (TP) are important for the supply and storage of fresh water to billions of people. However, previous studies on the dynamics of these lakes focused on monitoring on multi-year scales and therefore lack sufficient... Read More about Annual 30-m big Lake Maps of the Tibetan Plateau in 1991–2018.

Study of Ground Movement in a Mining Area with Geological Faults Using FDM Analysis and a Stacking InSAR Method (2021)
Journal Article
Qin, Z., Agarwal, V., Gee, D., Marsh, S., Grebby, S., Chen, Y., & Meng, N. (2021). Study of Ground Movement in a Mining Area with Geological Faults Using FDM Analysis and a Stacking InSAR Method. Frontiers in Environmental Science, 9, Article 787053. https://doi.org/10.3389/fenvs.2021.787053

Underground coal mining activities and ground movement are directly correlated, and coal mining-induced ground movement can cause damage to property and resources, thus its monitoring is essential for the safety and economics of a city. Fangezhuang c... Read More about Study of Ground Movement in a Mining Area with Geological Faults Using FDM Analysis and a Stacking InSAR Method.

Comparative study of groundwater-induced subsidence for london and delhi using psinsar (2021)
Journal Article
Agarwal, V., Kumar, A., Gee, D., Grebby, S., Gomes, R. L., & Marsh, S. (2021). Comparative study of groundwater-induced subsidence for london and delhi using psinsar. Remote Sensing, 13(23), Article 4741. https://doi.org/10.3390/rs13234741

Groundwater variation can cause land-surface movement, which in turn can cause significant and recurrent harm to infrastructure and the water storage capacity of aquifers. The capital cities in the England (London) and India (Delhi) are witnessing an... Read More about Comparative study of groundwater-induced subsidence for london and delhi using psinsar.

Remote Monitoring of Ground Motion Hazards in High Mountain Terrain Using InSAR: A Case Study of the Lake Sarez Area, Tajikistan (2021)
Journal Article
Grebby, S., Sowter, A., Gee, D., Athab, A., De la Barreda-Bautista, B., Girindran, R., & Marsh, S. (2021). Remote Monitoring of Ground Motion Hazards in High Mountain Terrain Using InSAR: A Case Study of the Lake Sarez Area, Tajikistan. Applied Sciences, 11(18), Article 8738. https://doi.org/10.3390/app11188738

High mountain terrains, with steep slopes and deep valleys, are generally challenging areas to monitor using satellite earth observation techniques since the terrain creates perspective distortions and differences in illumination that can occlude or... Read More about Remote Monitoring of Ground Motion Hazards in High Mountain Terrain Using InSAR: A Case Study of the Lake Sarez Area, Tajikistan.

Nanopore Size Distribution Heterogeneity of Organic-Rich Shale Reservoirs Using Multifractal Analysis and Its Influence on Porosity–Permeability Variation (2021)
Journal Article
Yan, G., Qin, Z., Marsh, S., Grebby, S., Mou, Y., Song, L., & Zhang, C. (2021). Nanopore Size Distribution Heterogeneity of Organic-Rich Shale Reservoirs Using Multifractal Analysis and Its Influence on Porosity–Permeability Variation. Energy and Fuels, 35(17), 13700-13711. https://doi.org/10.1021/acs.energyfuels.1c01654

The shale nanopore size (diameter <100 nm) distribution heterogeneity (SNDH) is one of the important factors affecting gas production. However, quantitative analysis of the SNDH and the applicability of single and multifractal models need to be furth...

Advanced analysis of satellite data reveals ground deformation precursors to the Brumadinho Tailings Dam collapse (2021)
Journal Article
Grebby, S., Sowter, A., Gluyas, J., Toll, D., Gee, D., Athab, A., & Girindran, R. (2021). Advanced analysis of satellite data reveals ground deformation precursors to the Brumadinho Tailings Dam collapse. Communications Earth & Environment, 2, Article 2. https://doi.org/10.1038/s43247-020-00079-2

Catastrophic failure of a tailings dam at an iron ore mine complex in Brumadinho, Brazil, on 25th January 2019 released 11.7 million m3 of tailings downstream. Although reportedly monitored using an array of geotechnical techniques, the collapse occu... Read More about Advanced analysis of satellite data reveals ground deformation precursors to the Brumadinho Tailings Dam collapse.

A machine learning approach to tungsten prospectivity modelling using knowledge-driven feature extraction and model confidence (2020)
Journal Article
Yeomans, C. M., Shail, R. K., Grebby, S., Nykänen, V., Middleton, M., & Lusty, P. A. (2020). A machine learning approach to tungsten prospectivity modelling using knowledge-driven feature extraction and model confidence. Geoscience Frontiers, 11(6), 2067-2081. https://doi.org/10.1016/j.gsf.2020.05.016

Novel mineral prospectivity modelling presented here applies knowledge-driven feature extraction to a data-driven machine learning approach for tungsten mineralisation. The method emphasises the importance of appropriate model evaluation and develops... Read More about A machine learning approach to tungsten prospectivity modelling using knowledge-driven feature extraction and model confidence.

Delineating ground deformation over the Tengiz oil field, Kazakhstan, using the Intermittent SBAS (ISBAS) DInSAR algorithm (2019)
Journal Article
Grebby, S., Orynbassarova, E., Sowter, A., Gee, D., & Athab, A. (2019). Delineating ground deformation over the Tengiz oil field, Kazakhstan, using the Intermittent SBAS (ISBAS) DInSAR algorithm. International Journal of Applied Earth Observation and Geoinformation, 81, 37-46. https://doi.org/10.1016/j.jag.2019.05.001

Changes in subsurface pore pressures and stresses due to the extraction of hydrocarbons often cause deformation over oil and gas fields. This can have significant consequences, including ground subsidence, induced seismicity and well failures. Geodyn... Read More about Delineating ground deformation over the Tengiz oil field, Kazakhstan, using the Intermittent SBAS (ISBAS) DInSAR algorithm.