Crime statistics are compiled from UCR data and published annually by the FBI in the Crime in the United States series. The FBI does not collect the data itself. Rather, law enforcement agencies across the United States provide the data to the FBI, which then compiles the Reports.
Watershed Analysis. A watershed is the area of land where all of the water that falls in it and drains off of it goes into the same place or common outlet. A watershed is also defined by topographic divides between two or more adjacent catchment basins, such as a ridge or a crest.
California Watershed Assessment Guide June, 2004 watershed), intersection of lines of different types (e.g., roads crossing streams), and summarizing data for an area (e.g., the number of people in a watershed). Not all spatial analysis needs to involve a computer-based GIS, but that is our focus in this Manual.