Msc_Dissertation_UOE

Forest disturbance mapping using Radar imagery.

Sentinel 1 is a radar satellite. Backscatter value decrease when there is forest canopy loss.

The CuSum technique is a statistical-based change detection method utilized for analyzing multi-temporal processes. It exhibits the capability to identify various forms of variations, whether gradual or sudden, that significantly influence the overall trend observed within the time-series data.

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get_disturbancemap_DSC_VH

Get a forest disturbance map in the study area using VH polarisation using google earth API in Python.

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get_disturbance_map_comb

Get a forest disturbance map in the study area using a combination of VV and VH polarisation using google earth API in Python.

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Instruction

1) Run this code using google colab, first have a GEE account, and authorize the project in GEE first otherwise it will not initiate it in Python API.

2) While uploading the shapefile please keep the projection system as EPSG:4326, and define the year in which you want to see the change.

3) Final plots will not give output if you don't adjust the coordinates according to your study area.

4) Mount on your own google drive and mention input and output file paths accordingly.