For example, if I want to display images of radar reflectivity or temperature fields on cesium, what should I do?
This is what raster overlays are for. We currently support raster overlays from Cesium ion, from a Web Map Service (WMS), and from a Tile Map Service (TMS).
Thank you! But I was prompted when uploading files: One or more files are not georeferenced. What can I do to upload images smoothly?
You’ll need to georeference them. That means describing where on Earth the images are located and what map projection they use. The details of how to do that depend on the format of your files and how they were created. In general, GIS tools like QGIS and GDAL can help.