This R code was developed by JNCC under the Copernicus User Uptake Work Package 6 projects focussing on Habitat Change Detection. It calls from functions from the habitat-condition-monitoring package, which contains various functions involved in the preparation, statistical analysis and modelling with Sentinel-1 and Sentinel-2 data.
Under the habitat change detection project, in collaboration with Historic Environment Scotland, Natural England, Natural Resources Wales and Scottish Natural Heritage, JNCC used Sentinel-1 and -2 analysis-ready data (ARD) to track change over time at a site and highlight changed areas through a web application.
The markdown documentation walkthroughs the process of deriving the zonal statistics for each of the sites, using the Sentinel imagery from the studied time period and a spatial framework of polygons used to study change.
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CUUCD_EnglishSites.Rmd - Dark Peak; Malvern Hills
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CUUCD_ScottishSites.Rmd - HES site 2; Insh Marshes SSSI, Glenfeshie and HES site 3; Flanders Moss SSSI and HES site 4; Skyreburn Grasslands SSSI, Lagganmullan SSSI and HES site 1
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CUUCD_WelshSites.Rmd - Cors Bodeilio site; Rhos Tonyrefail square site
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change_analysis_examples.Rmd - short initial analysis of Insh Marshes statistics and the values used to flag change.
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change_statistics_analysis.Rmd - Interactive document demonstrating the statistics used for flagging change. Creates a local shiny app using the statistics text file generated from the 'zonal_stats' function, also hosted here.
- CUUCD_AppFilePrep.Rmd - walkthrough to prepare files the output files from the zonal and change stats functions for inputting to the JNCC CUU: Habitat Condition Monitoring R shiny application.