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All Outputs (36)

Object oriented data analysis of surface motion time series in peatland landscapes (2024)
Journal Article
Mitchell, E. G., Dryden, I. L., Fallaize, C. J., Andersen, R., Bradley, A. V., Large, D. J., & Sowter, A. (2024). Object oriented data analysis of surface motion time series in peatland landscapes. Journal of the Royal Statistical Society: Series C, Article qlae060. https://doi.org/10.1093/jrsssc/qlae060

Peatlands account for 10% of UK land area, 80% of which are degraded to some degree, emitting carbon at a similar magnitude to oil refineries or landfill sites. A lack of tools for rapid and reliable assessment of peatland condition has limited monit... Read More about Object oriented data analysis of surface motion time series in peatland landscapes.

MPeat2D - a fully coupled mechanical-ecohydrological model of peatland development in two dimensions (2024)
Journal Article
Mahdiyasa, A. W., Large, D. J., Icardi, M., & Muljadi, B. P. (2024). MPeat2D - a fully coupled mechanical-ecohydrological model of peatland development in two dimensions. Earth Surface Dynamics, 12(4), 929-952. https://doi.org/10.5194/esurf-12-929-2024

Higher-dimensional models of peatland development are required to analyse the influence of spatial heterogeneity and complex feedback mechanisms on peatland behaviour. However, the current models exclude the mechanical process that leads to uncertain... Read More about MPeat2D - a fully coupled mechanical-ecohydrological model of peatland development in two dimensions.

Exploring Spatial Patterns of Tropical Peatland Subsidence in Selangor, Malaysia Using the APSIS-DInSAR Technique (2024)
Journal Article
de la Barreda-Bautista, B., Ledger, M. J., Sjögersten, S., Gee, D., Sowter, A., Cole, B., Page, S. E., Large, D. J., Evans, C. D., Tansey, K. J., Evers, S., & Boyd, D. S. (2024). Exploring Spatial Patterns of Tropical Peatland Subsidence in Selangor, Malaysia Using the APSIS-DInSAR Technique. Remote Sensing, 16(12), Article 2249. https://doi.org/10.3390/rs16122249

Tropical peatlands in Southeast Asia have experienced widespread subsidence due to forest clearance and drainage for agriculture, oil palm and pulp wood production, causing concerns about their function as a long-term carbon store. Peatland drainage... Read More about Exploring Spatial Patterns of Tropical Peatland Subsidence in Selangor, Malaysia Using the APSIS-DInSAR Technique.

Blanket bog vegetation response to wildfire and drainage suggests resilience to low severity, infrequent burning (2024)
Journal Article
Andersen, R., Fernandez-Garcia, P., Martin-Walker, A., Klein, D., Marshall, C., Large, D. J., Hughes, R., & Hancock, M. H. (2024). Blanket bog vegetation response to wildfire and drainage suggests resilience to low severity, infrequent burning. Fire Ecology, 20(1), Article 26. https://doi.org/10.1186/s42408-024-00256-0

Background
In 2019, a wildfire impacted an area of blanket bog and wet heath > 60 km2 in the Flow Country peatlands of northern Scotland, a site of global significance. Unusually the footprint of the wildfire included discrete areas of degraded, res... Read More about Blanket bog vegetation response to wildfire and drainage suggests resilience to low severity, infrequent burning.

Potential of APSIS-InSAR for measuring surface oscillations of tropical peatlands (2024)
Journal Article
Ledger, M. J., Sowter, A., Morrison, K., Evans, C. D., Large, D. J., Athab, A., Gee, D., Brown, C., & Sjögersten, S. (2024). Potential of APSIS-InSAR for measuring surface oscillations of tropical peatlands. PLoS ONE, 19(2), Article e0298939. https://doi.org/10.1371/journal.pone.0298939

Tropical peatland across Southeast Asia is drained extensively for production of pulpwood, palm oil and other food crops. Associated increases in peat decomposition have led to widespread subsidence, deterioration of peat condition and CO2 emissions.... Read More about Potential of APSIS-InSAR for measuring surface oscillations of tropical peatlands.

MPeat2D - A fully coupled mechanical-ecohydrological model of peatland development in two dimensions (2023)
Preprint / Working Paper
Mahdiyasa, A. W., Large, D. J., Icardi, M., & Muljadi, B. P. MPeat2D - A fully coupled mechanical-ecohydrological model of peatland development in two dimensions

Higher dimensional models of peatland development are required to analyse the influence of spatial heterogeneity and complex feedback mechanisms. However, the current models exclude the mechanical process that leads to uncertainties in simulating the... Read More about MPeat2D - A fully coupled mechanical-ecohydrological model of peatland development in two dimensions.

Mapping and monitoring peatland conditions from global to field scale (2023)
Journal Article
Minasny, B., Adetsu, D. V., Aitkenhead, M., Artz, R. R. E., Baggaley, N., Barthelmes, A., Beucher, A., Caron, J., Conchedda, G., Connolly, J., Deragon, R., Evans, C., Fadnes, K., Fiantis, D., Gagkas, Z., Gilet, L., Gimona, A., Glatzel, S., Greve, M. H., Habib, W., …Zak, D. (2024). Mapping and monitoring peatland conditions from global to field scale. Biogeochemistry, 167(4), 383-425. https://doi.org/10.1007/s10533-023-01084-1

Peatlands cover only 3–4% of the Earth’s surface, but they store nearly 30% of global soil carbon stock. This significant carbon store is under threat as peatlands continue to be degraded at alarming rates around the world. It has prompted countries... Read More about Mapping and monitoring peatland conditions from global to field scale.

Tropical peat surface oscillations are a function of peat condition at North Selangor peat swamp forest, Malaysia (2023)
Journal Article
Ledger, M. J., Evans, C. D., Large, D. J., Evers, S., Brown, C., Jovani-Sancho, A. J., Callaghan, N., Vane, C. H., Marshall, C., Baskaran, A., Gan, J. Y., Sowter, A., Morrison, K., & Sjögersten, S. (2023). Tropical peat surface oscillations are a function of peat condition at North Selangor peat swamp forest, Malaysia. Frontiers in Environmental Science, 11, Article 1182100. https://doi.org/10.3389/fenvs.2023.1182100

Tropical peatland condition across southeast Asia is deteriorating as a result of conversion to agriculture and urban zones. Conversion begins by lowering the water table, which leads to peat decomposition, subsidence and increased risk of large-scal... Read More about Tropical peat surface oscillations are a function of peat condition at North Selangor peat swamp forest, Malaysia.

Modelling the influence of mechanical-ecohydrological feedback on the nonlinear dynamics of peatlands (2023)
Journal Article
Mahdiyasa, A. W., Large, D. J., Muljadi, B. P., & Icardi, M. (2023). Modelling the influence of mechanical-ecohydrological feedback on the nonlinear dynamics of peatlands. Ecological Modelling, 478, Article 110299. https://doi.org/10.1016/j.ecolmodel.2023.110299

Peatlands are complex systems that exhibit nonlinear dynamics due to internal and external feedback mechanisms. However, the feedback of vegetation on peat volume changes that potentially affect peatland dynamics is not well understood. Here, we anal... Read More about Modelling the influence of mechanical-ecohydrological feedback on the nonlinear dynamics of peatlands.

Pore Structure-Transport Relationships in Bowland Shale (2022)
Book Chapter
Pitcher, E. G., Fletcher, R. S., Large, D. J., & Rigby, S. P. (2023). Pore Structure-Transport Relationships in Bowland Shale. In The Bowland Shale Formation, UK: Processes and Resources. Geological Society. https://doi.org/10.1144/sp534-2021-97

Shale rocks are highly structurally and chemically heterogeneous, such that the pore structure-transport relationship is complex. Shales typically have porosity over many length-scales from the molecular up to macroscopic fractures. This work utilize... Read More about Pore Structure-Transport Relationships in Bowland Shale.

Potential use of APSIS-InSAR measures of the range of vertical surface motion to improve hazard assessment of peat landslides (2022)
Journal Article
Islam, M. T., Bradley, A. V., Sowter, A., Andersen, R., Marshall, C., Long, M., Bourke, M. C., Connolly, J., & Large, D. J. (2022). Potential use of APSIS-InSAR measures of the range of vertical surface motion to improve hazard assessment of peat landslides. Mires and Peat, 28, Article 21. https://doi.org/10.19189/MaP.2021.OMB.StA.2356

Peat landslides represent a notable natural hazard that is difficult to assess across complex blanket bog terrain. To aid the assessment of peat landslide susceptibility, we propose a new metric, the range of vertical surface motion (RVSM), quantifie... Read More about Potential use of APSIS-InSAR measures of the range of vertical surface motion to improve hazard assessment of peat landslides.

Identification of typical ecohydrological behaviours using InSAR allows landscape-scale mapping of peatland condition (2022)
Journal Article
Bradley, A. V., Andersen, R., Marshall, C., Sowter, A., & Large, D. J. (2022). Identification of typical ecohydrological behaviours using InSAR allows landscape-scale mapping of peatland condition. Earth Surface Dynamics, 10(2), 261-277. https://doi.org/10.5194/esurf-10-261-2022

Better tools for rapid and reliable assessment of global peatland extent and condition are urgently needed to support action to prevent further decline of peatlands. Peatland surface motion is a response to changes in the water and gas content of a p... Read More about Identification of typical ecohydrological behaviours using InSAR allows landscape-scale mapping of peatland condition.

Towards a Monitoring Approach for Understanding Permafrost Degradation and Linked Subsidence in Arctic Peatlands (2022)
Journal Article
de la Barreda-Bautista, B., Boyd, D. S., Ledger, M., Siewert, M. B., Chandler, C., Bradley, A. V., Gee, D., Large, D. J., Olofsson, J., Sowter, A., & Sjögersten, S. (2022). Towards a Monitoring Approach for Understanding Permafrost Degradation and Linked Subsidence in Arctic Peatlands. Remote Sensing, 14(3), Article 444. https://doi.org/10.3390/rs14030444

Permafrost thaw resulting from climate warming is threatening to release carbon from high latitude peatlands. The aim of this research was to determine subsidence rates linked to permafrost thaw in sub-Arctic peatlands in Sweden using historical orth... Read More about Towards a Monitoring Approach for Understanding Permafrost Degradation and Linked Subsidence in Arctic Peatlands.

Multiscale Variability and the Comparison of Ground and Satellite Radar Based Measures of Peatland Surface Motion for Peatland Monitoring (2022)
Journal Article
Marshall, C., Sterk, H. P., Gilbert, P. J., Andersen, R., Bradley, A. V., Sowter, A., Marsh, S., & Large, D. J. (2022). Multiscale Variability and the Comparison of Ground and Satellite Radar Based Measures of Peatland Surface Motion for Peatland Monitoring. Remote Sensing, 14(2), Article 336. https://doi.org/10.3390/rs14020336

Peatland surface motion is highly diagnostic of peatland condition. Interferometric Synthetic Aperture Radar (InSAR) can measure this at the landscape scale but requires ground validation. This necessitates upscaling from point to areal measures (80... Read More about Multiscale Variability and the Comparison of Ground and Satellite Radar Based Measures of Peatland Surface Motion for Peatland Monitoring.

MPeat—A fully coupled mechanical-ecohydrological model of peatland development (2021)
Journal Article
Mahdiyasa, A. W., Large, D. J., Muljadi, B. P., Icardi, M., & Triantafyllou, S. (2022). MPeat—A fully coupled mechanical-ecohydrological model of peatland development. Ecohydrology, 15(1), Article e2361. https://doi.org/10.1002/eco.2361

Mathematical models of long-term peatland development have been produced to analyse peatland behaviour. However, existing models ignore the mechanical processes that have the potential to provide important feedback. Here, we propose a one-dimensional... Read More about MPeat—A fully coupled mechanical-ecohydrological model of peatland development.

Potential impacts of oxygen impurities in carbon capture and storage on microbial community composition and activity (2021)
Journal Article
Morgan, H., Large, D. J., Bateman, K., Hanstock, D., & Gregory, S. P. (2021). Potential impacts of oxygen impurities in carbon capture and storage on microbial community composition and activity. International Journal of Greenhouse Gas Control, 111, Article 103479. https://doi.org/10.1016/j.ijggc.2021.103479

Gaseous impurities, such as O2, are expected to be present within CO2 captured for storage. This could stimulate microbial activity in a geological CO2 storage site which has the potential to lead to operational issues such as injection well blockage... Read More about Potential impacts of oxygen impurities in carbon capture and storage on microbial community composition and activity.

Multi-scale pore structural change across a paleodepositional transition in Utica shale probed by gas sorption overcondensation and scanning (2021)
Journal Article
Pitcher, E. G., Large, D. J., Fletcher, R. S., & Rigby, S. P. (2021). Multi-scale pore structural change across a paleodepositional transition in Utica shale probed by gas sorption overcondensation and scanning. Marine and Petroleum Geology, 134, Article 105348. https://doi.org/10.1016/j.marpetgeo.2021.105348

Pore structure and network configuration in shales greatly impacts physical processes important for hydrocarbon migration, methane extraction, gas storage, or carbon sequestration. The multi-scale nature of the porosity in shales presents significant... Read More about Multi-scale pore structural change across a paleodepositional transition in Utica shale probed by gas sorption overcondensation and scanning.

NatureScot Research Report 1269 - Using peatland surface motion (bog breathing) to monitor Peatland Action sites (2021)
Report
Marshall, C., Bradley, A. V., Andersen, R., & Large, D. J. (2021). NatureScot Research Report 1269 - Using peatland surface motion (bog breathing) to monitor Peatland Action sites. Edinburgh: Nature Scot (formally Scottish National Heritage)

Interferometric satellite radar (InSAR) provides a means of measuring peatland surface motion continuously and is not limited by scale or cloud cover. Previous InSAR investigations demonstrate the potential for InSAR to quantify surface motion and he... Read More about NatureScot Research Report 1269 - Using peatland surface motion (bog breathing) to monitor Peatland Action sites.

Time, hydrologic landscape and the long‐term storage of peatland carbon in sedimentary basins (2021)
Journal Article
Large, D. J., Marshall, C., Jochmann, M., Jensen, M., Spiro, B. F., & Olaussen, S. (2021). Time, hydrologic landscape and the long‐term storage of peatland carbon in sedimentary basins. Journal of Geophysical Research: Earth Surface, 126(3), Article e2020JF005762. https://doi.org/10.1029/2020jf005762

Peatland carbon may enter long‐term storage in sedimentary basins preserved as either coal or lignite. The time required to account for the carbon in 1 – 10 m thick coal seams must represent 105 to 106 years, an order of magnitude more than previousl... Read More about Time, hydrologic landscape and the long‐term storage of peatland carbon in sedimentary basins.