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kml file projection

Question asked by lbrodie_usfs on Mar 27, 2019

I would like to present raster information within a Story Map. Since this option is not available, as a work-around, I have converted the raster (which originated from a script written in R) to a KML file. When loaded into a Web Map, the projection is incorrect. I have tried:


1) converting the raster file coordinate system (GCS_WGS_1984) directly to a kml file.


1) Changing the coordinate system in the original raster file from GCS_WGS_1984 to WGS_1984_Web_Mercator_Auxiliary_Sphere before conversion


2) Adding the original raster file to the Dataframe where the coordinate system has been stipulated as WGS_1984_Web_Mercator_Auxiliary_Sphere before converting


3) Exporting the data to a new raster (tiff format) stipulating that coordinate system of the new file should be the same as the dataframe (WGS_1984_Web_Mercator_Auxiliary_Sphere).


All of these have exactly the same result - the files are correct within ArcMap before they are converted to a KML file, but once converted and loaded into a Web Map, they are skewed (image below). 

Thanks for you help.