Hi all,
My ultimate goal is to conduct change detection analysis on mangrove and non-mangrove extents for my study area over the years 2012, 2017, and 2021. I acquired my data through supervised classification on Google Earth Engine and exported my mangrove extents as GeoTiffs. It was exported at a scale of 30m (as I used Landsat) and the default coordinate reference system EPSG:3857. The image below is a screenshot of one of the exported tiffs properties.
My study area of Moreton Bay, Queensland is set to the coordinate system Geocentric Datum of Australia 1994. I will go on to use the Change Detection Wizard tool to map the changes between study years.
For what I am setting out to do, do I need to reproject to the Australian geographic coordinate system? Also, if I have exported the GeoTiff at a scale of 30m, why in the ArcGIS Pro layer properties is the cell size 0.000269?