Research Repository

See what's under the surface


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. doi: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

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, 228, doi:10.1016/j.jfoodeng.2018.01.009. ISSN 0260-8774

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 using a “push-broom” s... Read More

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, doi:10.1016/j.foodres.2017.12.031. ISSN 0963-9969

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

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, doi:10.1016/j.gexplo.2016.05.003. ISSN 0375-6742

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

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), doi:10.1002/2015JE004989. ISSN 2169-9097

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

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), doi:10.3390/rs61110860. ISSN 2072-4292

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

Assessing the impact of urbanization on storm runoff in a peri-urban catchment using historical change in impervious cover (2014)
Journal Article
Miller, J. D., 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, doi:10.1016/j.jhydrol.2014.04.011. ISSN 0022-1694

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

Mapping long-term temporal change in imperviousness using topographic maps (2014)
Journal Article
Miller, J. D., & Grebby, S. (2014). Mapping long-term temporal change in imperviousness using topographic maps. International Journal of Applied Earth Observation and Geoinformation, 30, doi:10.1016/j.jag.2014.01.002. ISSN 0303-2434

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

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), doi:10.1016/j.rse.2010.08.019. ISSN 0034-4257

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

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), doi:10.1016/j.rse.2009.11.006. ISSN 0034-4257

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

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), ISSN 1214-9705

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

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), doi:10.1029/2006GL027014. ISSN 0094-8276

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