About GeoQuery / Citing GeoQuery
Why do I need to cite GeoQuery in addition to the source data?
TL;DR: GeoQuery executes advanced zonal statistics calculations in order to compute the number in the spreadsheets that you download from the "raw" data behind the numbers from the datasets that you selected from GeoQuery.
You can read more about that here:
GeoQuery: Integrating HPC systems and public web-based geospatial data tools