I am using BISON, a web service that gives public GIS information, and they recently added citizen science mapping of various invasive species to their site. I am wanting to use the BISON data to analyze an invasive species prominent in Tennessee. However I am wanting to compare the accuracy of this citizen science to another map, though I am not sure which direction to go about finding this other map to compare and remotely sense the specific invasive species I am looking for. I am also wanting to look at taking a different direction with the BISON data and seeing if I can analysis a pattern of early detection in the species, but not sure how I can use GIS to do that specifically. The problem is that I figure I try to see if I can remotely sense this data all while being in a different state than Tennessee. A push in the right direction would greatly be appreciated.