EA LiDAR Metadata - Christopher Feeney 03/06/2022

The 'EA_DoD_15m.tif' raster was created using Environment Agency (EA) LiDAR data available from: https://environment.data.gov.uk/DefraDataDownload/?Mode=survey

Digital terrain models (DTM) were downloaded as follows:
	Year 2006: Resolution (1 metre); OS tiles (SJ79ne, SJ79nw, SJ79se, SJ79sw)
	Year 2019: Resolution (2 metre); OS tiles (SJ79se, SJ79sw)

For each year, DTMs were resampled to 15 m, merged using the 'Mosaic to new raster' tool in ArcMap and clipped to the reach boundary.
The newly resampled DTM for 2019 was subtracted from the DTM for 2006 to obtain a DEM of Difference (DoD).
The same subtraction was performed for the Low and High erosion model results so the 3 DoDs could be compared directly.