Dr ANDREW BRADLEY's Outputs (14)

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. (in press). 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.

State of Knowledge on UK Agricultural Peatlands for Food Production and the Net Zero Transition (2023)
Journal Article
Lloyd, I., Thomas, V., Ofoegbu, C., Bradley, A. V., Bullard, P., D’Acunha, B., Delaney, B., Driver, H., Evans, C. D., Faulkner, K., Fonvielle, J. A., Francksen, R. M., Friday, L. E., Hose, G., Kaduk, J., Manning, F. R., Morrison, R., Novo, P., Page, S. E., Rhymes, J., …Balzter, H. (2023). State of Knowledge on UK Agricultural Peatlands for Food Production and the Net Zero Transition. Sustainability, 15(23), Article 16347. https://doi.org/10.3390/su152316347

Agricultural peatlands are the most productive soils in the UK for the cultivation of many food crops. Historical drainage of peat for agriculture (i.e., cropland and managed grassland), without consideration of other associated environmental and cli... Read More about State of Knowledge on UK Agricultural Peatlands for Food Production and the Net Zero Transition.

Using a multi‐lens framework for landscape decisions (2023)
Journal Article
Cole, B., Bradley, A. V., Willcock, S., Gardner, E., Allinson, E., Hagen-Zanker, A., …Whelan, M. (2023). Using a multi‐lens framework for landscape decisions. People and Nature, 5(4), 1050-1071. https://doi.org/10.1002/pan3.10474

Landscape decisions are multi-faceted. Framing landscape decision-making as a governance process that requires a collective approach can encourage key stakeholders to come together to co-inform a discussion about their priorities and what constitutes... Read More about Using a multi‐lens framework for landscape decisions.

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., …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., …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., …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.

Spatial variability in shrub vegetation across dune forms in central Saudi Arabia (2018)
Journal Article
Bradley, A. V., Haughan, A. E., Al-Dughairi, A., & McLaren, S. J. (2019). Spatial variability in shrub vegetation across dune forms in central Saudi Arabia. Journal of Arid Environments, 161, 72-84. https://doi.org/10.1016/j.jaridenv.2018.10.003

In desert dune environments, vegetation may be an indicator of dune stability and rates of sediment transport. As topography and underlying controls of vegetation vary over large spatial areas variations in dune form make scaling up of field research... Read More about Spatial variability in shrub vegetation across dune forms in central Saudi Arabia.

A multi-scale approach interpreting sediment processes and distribution from desert sand colour in central Saudi Arabia (2018)
Journal Article
Bradley, A. V., McLaren, S. J., Al-Dughairi, A., & Khalaf, N. R. (2018). A multi-scale approach interpreting sediment processes and distribution from desert sand colour in central Saudi Arabia. Earth Surface Processes and Landforms, 43(14), 2847-2862. https://doi.org/10.1002/esp.4438

In central Saudi Arabia the redness of sands observed on satellite imagery, often related to iron oxide amount, was used to better interpret geomorphic processes operating in the area. To compare variations between dune and interdune morphology, line... Read More about A multi-scale approach interpreting sediment processes and distribution from desert sand colour in central Saudi Arabia.

An ensemble of spatially explicit land-cover model projections: prospects and challenges to retrospectively evaluate deforestation policy (2017)
Journal Article
Bradley, A. V., Rosa, I. M. D., Brandão, A., Crema, S., Dobler, C., Moulds, S., …Ewers, R. M. (2017). An ensemble of spatially explicit land-cover model projections: prospects and challenges to retrospectively evaluate deforestation policy. Modeling Earth Systems and Environment, 3(4), 1215-1228. https://doi.org/10.1007/s40808-017-0376-y

Ensemble techniques, common in many disciplines, have yet to be fully exploited with spatially explicit projections from land-change models. We trial a land-change model ensemble to assess the impact of policies designed to conserve tropical rainfore... Read More about An ensemble of spatially explicit land-cover model projections: prospects and challenges to retrospectively evaluate deforestation policy.

SimiVal, a multi-criteria map comparison tool for land-change model projections (2016)
Journal Article
Bradley, A. V., Rosa, I. M., Pontius, R. G., Ahmed, S. E., Araújo, M. B., Brown, D. G., …Ewers, R. M. (2016). SimiVal, a multi-criteria map comparison tool for land-change model projections. Environmental Modelling and Software, 82, 229-240. https://doi.org/10.1016/j.envsoft.2016.04.016

The multiple uses of land-cover models have led to validation with choice metrics or an ad hoc choice of the validation metrics available. To address this, we have identified the major dimensions of land-cover maps that ought to be evaluated and devi... Read More about SimiVal, a multi-criteria map comparison tool for land-change model projections.

Comparing the accuracies of remote sensing global burned area products using stratified random sampling and estimation (2015)
Journal Article
Padilla, M., Stehman, S. V., Ramo, R., Corti, D., Hantson, S., Oliva, P., …Chuvieco, E. (2015). Comparing the accuracies of remote sensing global burned area products using stratified random sampling and estimation. Remote Sensing of Environment, 160, 114-121. https://doi.org/10.1016/j.rse.2015.01.005

© 2015 Elsevier Inc. The accuracies of six global burned area (BA) products for year 2008 were compared using the same validation methods and reference data to quantify accuracy of each product. The selected products include MCD64, MCD45 and Geoland2... Read More about Comparing the accuracies of remote sensing global burned area products using stratified random sampling and estimation.

Evidence of past environmental conditions during the evolution of a calcretised Wadi System in Southern Jordan using stable isotopes (2012)
Journal Article
McLaren, S. J., Leng, M. J., Knowles, T., & Bradley, A. V. (2012). Evidence of past environmental conditions during the evolution of a calcretised Wadi System in Southern Jordan using stable isotopes. Palaeogeography, Palaeoclimatology, Palaeoecology, 348-349, 1-12. https://doi.org/10.1016/j.palaeo.2012.05.010

A stratigraphically and temporally ordered sequence of channel calcretes preserved along the Wadi Dana, Southern Jordan, records the Quaternary evolution of the formation and infilling of rock-cut channels and their subsequent incision in a tectonica... Read More about Evidence of past environmental conditions during the evolution of a calcretised Wadi System in Southern Jordan using stable isotopes.

Relationships between phenology, radiation and precipitation in the Amazon region (2011)
Journal Article
Bradley, A. V., Gerard, F. F., Barbier, N., Weedon, G. P., Anderson, L. O., Huntingford, C., …Arai, E. (2011). Relationships between phenology, radiation and precipitation in the Amazon region. Global Change Biology, 17(6), 2245-2260. https://doi.org/10.1111/j.1365-2486.2011.02405.x

In tropical areas, Dynamic Global Vegetation Models (DGVMs) still have deficiencies in simulating the timing of vegetation phenology. To start addressing this problem, standard Fourier-based methods are applied to aerosol screened monthly remotely se... Read More about Relationships between phenology, radiation and precipitation in the Amazon region.