The Geography and Spatial Sciences (GSS) Program sponsors research on the geographic distributions and interactions of human, physical, and biotic systems on Earth. Investigators are encouraged to propose plans for research about the nature, causes, and consequences of human activity and natural environmental processes across a range of scales. GSS provides support to improve the conduct of doctoral dissertation projects undertaken by doctoral students enrolled in U.S. universities. GSS gives 30-40 awards each year. Awards may not exceed $16,000. An advisor or another faculty member must serve as the principal investigator (PI) of the proposal.