STEPHEN GREBBY's Outputs (40)

Integrated Object-Based Image Analysis for semi-automated geological lineament detection in Southwest England (2018)
Journal Article
Yeomans, C. M., Middleton, M., Shail, R. K., Grebby, S., & Lusty, P. A. (2019). Integrated Object-Based Image Analysis for semi-automated geological lineament detection in Southwest England. Computers and Geosciences, 123, 137-148. https://doi.org/10.1016/j.cageo.2018.11.005

Regional lineament detection for mapping of geological structure can provide crucial information for mineral exploration. Manual methods of lineament detection are time consuming, subjective and unreliable. The use of semi-automated methods reduces t... Read More about Integrated Object-Based Image Analysis for semi-automated geological lineament detection in Southwest England.

Rapid prediction of single green coffee bean moisture and lipid content by hyperspectral imaging (2018)
Journal Article
Caporaso, N., Whitworth, M. B., Grebby, S., & Fisk, I. D. (2018). Rapid prediction of single green coffee bean moisture and lipid content by hyperspectral imaging. Journal of Food Engineering, 227, 18-29. https://doi.org/10.1016/j.jfoodeng.2018.01.009

© 2018 The Authors Hyperspectral imaging (1000–2500 nm) was used for rapid prediction of moisture and total lipid content in intact green coffee beans on a single bean basis. Arabica and Robusta samples from several growing locations were scanned usi... Read More about Rapid prediction of single green coffee bean moisture and lipid content by hyperspectral imaging.

Non-destructive analysis of sucrose, caffeine and trigonelline on single green coffee beans by hyperspectral imaging (2017)
Journal Article
Caporaso, N., Whitworth, M. B., Grebby, S., & Fisk, I. D. (2018). Non-destructive analysis of sucrose, caffeine and trigonelline on single green coffee beans by hyperspectral imaging. Food Research International, 106, https://doi.org/10.1016/j.foodres.2017.12.031

Hyperspectral imaging (HSI) is a novel technology for the food sector that enables rapid non-contact analysis of food materials. HSI was applied for the first time to whole green coffee beans, at a single seed level, for quantitative prediction of su... Read More about Non-destructive analysis of sucrose, caffeine and trigonelline on single green coffee beans by hyperspectral imaging.

Supporting energy regulation by monitoring land motion on a regional and national scale: a case study of Scotland (2017)
Journal Article
Sowter, A., Athab, A., Novellino, A., Grebby, S., & Gee, D. (in press). Supporting energy regulation by monitoring land motion on a regional and national scale: a case study of Scotland. Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, https://doi.org/10.1177/0957650917737225

The advent of new satellite and data processing techniques have meant that routine, operational and reliable surveys of land motion on a regional and national scale are now possible. In this paper, we apply a novel satellite remote sensing technique,... Read More about Supporting energy regulation by monitoring land motion on a regional and national scale: a case study of Scotland.

Ground motion in areas of abandoned mining: application of the intermittent SBAS (ISBAS) to the Northumberland and Durham coalfield, UK (2017)
Journal Article
Gee, D., Bateson, L., Sowter, A., Grebby, S., Novellino, A., Cigna, F., …Wyatt, L. (2017). Ground motion in areas of abandoned mining: application of the intermittent SBAS (ISBAS) to the Northumberland and Durham coalfield, UK. Geosciences, 7(3), https://doi.org/10.3390/geosciences7030085

In this paper, we investigate land motion and groundwater level change phenomena using differential interferometric synthetic aperture radar (DInSAR) over the Northumberland and Durham coalfield in the United Kingdom. The study re-visits earlier res... Read More about Ground motion in areas of abandoned mining: application of the intermittent SBAS (ISBAS) to the Northumberland and Durham coalfield, UK.

Evaluating the use of an object-based approach to lithological mapping in vegetated terrain (2016)
Journal Article
Grebby, S., Field, E., & Tansey, K. (2016). Evaluating the use of an object-based approach to lithological mapping in vegetated terrain. Remote Sensing, 8(10), 1-20. https://doi.org/10.3390/rs8100843

Remote sensing-based approaches to lithological mapping are traditionally pixel-oriented, with classification performed on either a per-pixel or sub-pixel basis with complete disregard for contextual information about neighbouring pixels. However, in... Read More about Evaluating the use of an object-based approach to lithological mapping in vegetated terrain.

A machine learning approach to geochemical mapping (2016)
Journal Article
Kirkwood, C., Cave, M., Beamish, D., Grebby, S., & Ferreira, A. (2016). A machine learning approach to geochemical mapping. Journal of Geochemical Exploration, 167, https://doi.org/10.1016/j.gexplo.2016.05.003

Geochemical maps provide invaluable evidence to guide decisions on issues of mineral exploration, agriculture, and environmental health. However, the high cost of chemical analysis means that the ground sampling density will always be limited. Tradit... Read More about A machine learning approach to geochemical mapping.

Hydrothermal activity recorded in post Noachian-aged impact craters on Mars (2016)
Journal Article
Turner, S. M., Bridges, J. C., Grebby, S., & Ehlmann, B. L. (2016). Hydrothermal activity recorded in post Noachian-aged impact craters on Mars. Journal of Geophysical Research: Planets, 121(4), https://doi.org/10.1002/2015JE004989

Hydrothermal systems have previously been reported in ancient Noachian and Hesperian-aged craters on Mars using CRISM but not in Amazonian-aged impact craters. However, the nakhlite meteorites do provide evidence of Amazonian hydrothermal activity. T... Read More about Hydrothermal activity recorded in post Noachian-aged impact craters on Mars.

Speleothem U-series constraints on scarp retreat rates and landscape evolution: an example from the Severn valley and Cotswold Hills gull-caves, UK (2014)
Journal Article
Farrant, A. R., Noble, S. R., Barron, A. M., Self, C. A., & Grebby, S. (2014). Speleothem U-series constraints on scarp retreat rates and landscape evolution: an example from the Severn valley and Cotswold Hills gull-caves, UK. Journal of the Geological Society, 172, https://doi.org/10.1144/jgs2014-028

Modelling landscape evolution requires quantitative estimates of erosional processes. Dating erosional landscape features such as escarpments is usually difficult because of the lack of datable deposits. Some escarpments and valley margins are associ... Read More about Speleothem U-series constraints on scarp retreat rates and landscape evolution: an example from the Severn valley and Cotswold Hills gull-caves, UK.

The impact of vegetation on lithological mapping using airborne multispectral data: a case study for the North Troodos Region, Cyprus (2014)
Journal Article
Grebby, S., Cunningham, D., Tansey, K., & Naden, J. (2014). The impact of vegetation on lithological mapping using airborne multispectral data: a case study for the North Troodos Region, Cyprus. Remote Sensing, 6(11), https://doi.org/10.3390/rs61110860

Vegetation cover can affect the lithological mapping capability of space- and airborne instruments because it obscures the spectral signatures of the underlying geological substrate. Despite being widely accepted as a hindrance, few studies have expl... Read More about The impact of vegetation on lithological mapping using airborne multispectral data: a case study for the North Troodos Region, Cyprus.

Assessing the impact of urbanization on storm runoff in a peri-urban catchment using historical change in impervious cover (2014)
Journal Article
Kim, H., Kjeldsen, T. R., Packman, J., Grebby, S., & Dearden, R. (2014). Assessing the impact of urbanization on storm runoff in a peri-urban catchment using historical change in impervious cover. Journal of Hydrology, 515, https://doi.org/10.1016/j.jhydrol.2014.04.011

his paper investigates changes in storm runoff resulting from the transformation of previously rural landscapes into peri-urban areas. Two adjacent catchments (∼5 km2) located within the town of Swindon in the United Kingdom were monitored during 201... Read More about Assessing the impact of urbanization on storm runoff in a peri-urban catchment using historical change in impervious cover.

Mapping long-term temporal change in imperviousness using topographic maps (2014)
Journal Article
Grebby, S. (2014). Mapping long-term temporal change in imperviousness using topographic maps. International Journal of Applied Earth Observation and Geoinformation, 30, https://doi.org/10.1016/j.jag.2014.01.002

Change in urban land use and impervious surface cover are valuable sources of information for determining the environmental impacts of urban development. However, our understanding of these impacts is limited due to the general lack of historical dat... Read More about Mapping long-term temporal change in imperviousness using topographic maps.

A note on geographical systems and maps of Montserrat (2014)
Journal Article
Odbert, H. M., & Grebby, S. (2014). A note on geographical systems and maps of Montserrat. Memoirs, 39, https://doi.org/10.1144/M39.27

It is often critically important that geospatial data are measured and mapped accurately, particularly for quantitative analyses and numerical modelling applications. Defining a geographical coordinate system requires a non-unique combination of geod... Read More about A note on geographical systems and maps of Montserrat.

Application of airborne LiDAR data and airborne multispectral imagery to structural mapping of the upper section of the Troodos ophiolite, Cyprus (2011)
Journal Article
Grebby, S., Cunningham, D., Naden, J., & Tansey, K. (2012). Application of airborne LiDAR data and airborne multispectral imagery to structural mapping of the upper section of the Troodos ophiolite, Cyprus. International Journal of Earth Sciences, 101(6), https://doi.org/10.1007/s00531-011-0742-3

Structural maps are traditionally produced by mapping features such as faults, folds, fabrics, fractures and joints in the field. However, large map areas and the spatially limited ground perspective of the field geologist can potentially increase th... Read More about Application of airborne LiDAR data and airborne multispectral imagery to structural mapping of the upper section of the Troodos ophiolite, Cyprus.

Integrating airborne multispectral imagery and airborne LiDAR data for enhanced lithological mapping in vegetated terrain (2010)
Journal Article
Grebby, S., Naden, J., Cunningham, D., & Tansey, K. (2011). Integrating airborne multispectral imagery and airborne LiDAR data for enhanced lithological mapping in vegetated terrain. Remote Sensing of Environment, 115(1), https://doi.org/10.1016/j.rse.2010.08.019

Practical and financial constraints associated with traditional field-based lithological mapping are often responsible for the generation of maps with insufficient detail and inaccurately located contacts. In arid areas with well exposed rocks and so... Read More about Integrating airborne multispectral imagery and airborne LiDAR data for enhanced lithological mapping in vegetated terrain.

Lithological mapping of the Troodos ophiolite, Cyprus, using airborne LiDAR topographic data (2009)
Journal Article
Grebby, S., Cunningham, D., Naden, J., & Tansey, K. (2010). Lithological mapping of the Troodos ophiolite, Cyprus, using airborne LiDAR topographic data. Remote Sensing of Environment, 114(4), https://doi.org/10.1016/j.rse.2009.11.006

Traditional field-based lithological mapping can be a time-consuming, costly and challenging endeavour when large areas need to be investigated, where terrain is remote and difficult to access and where the geology is highly variable over short dista... Read More about Lithological mapping of the Troodos ophiolite, Cyprus, using airborne LiDAR topographic data.

Multi-disciplinary investigations of active faults in the Julian Alps, Slovenia (2007)
Journal Article
Cunningham, D., Gosar, A., Kastelic, V., Grebby, S., & Tansey, K. (2007). Multi-disciplinary investigations of active faults in the Julian Alps, Slovenia. Acta Geodynamica et Geomaterialia, 4(1),

UK-Slovenian collaborative research connected to EU COST-Action 625 began in 2003 and has involved interdisciplinary research into the current activity, structural architecture and landscape expression of the Ravne and Idrija strike-slip fault system... Read More about Multi-disciplinary investigations of active faults in the Julian Alps, Slovenia.

Application of airborne LiDAR to mapping seismogenic faults in forested mountainous terrain, southeastern Alps, Slovenia (2006)
Journal Article
Cunningham, D., Grebby, S., Tansey, K., Gosar, A., & Kastelic, V. (2006). Application of airborne LiDAR to mapping seismogenic faults in forested mountainous terrain, southeastern Alps, Slovenia. Geophysical Research Letters, 30(20), Article L20308. https://doi.org/10.1029/2006GL027014

Results are presented of the first airborne LiDAR survey ever flown in Europe for the purpose of mapping the surface expression of earthquake-prone faults. Detailed topographic images derived from LiDAR data of the Idrija and Ravne strike-slip faults... Read More about Application of airborne LiDAR to mapping seismogenic faults in forested mountainous terrain, southeastern Alps, Slovenia.

Shallow submarine barite mineralisation on Milos Island, Greece
Presentation / Conference Contribution
Miles, J., Naden, J., Cooper, F., Grebby, S., Wood, E., Wood, E., Brugge, E., Jillings, K., Keith, M., Hoggett, M., & Eme, V. Shallow submarine barite mineralisation on Milos Island, Greece

EO-MINERS: Monitoring the environmental and societal impact of the extractive industry using Earth Observation
Presentation / Conference Contribution
Jordan, C. J., Chevrel, S., Coetzee, H., Ben-Dor, E., Ehrler, C., Fischer, C., Grebby, S. R., Kerr, G., Livne, I., Kopacková, V., Kylychbaev, E., McEvoy, F., & Adar, S. (2013, July). EO-MINERS: Monitoring the environmental and societal impact of the extractive industry using Earth Observation. Presented at IEEE International Geoscience and Remote Sensing Symposium ( IGARSS 2013), Melbourne, Australia

The growing demand for mineral and energy resources over the last decade has placed the extractive industry under increasing pressure to monitor and reduce the environmental and societal impact throughout the life-cycle of mining operations. Despite... Read More about EO-MINERS: Monitoring the environmental and societal impact of the extractive industry using Earth Observation.