|Aircraft at SGP - Cessna 337C Turbo||Map of Southern Great Plains, Oklahoma|
|Inlet at SGP is on the left side of the planes body just behind the pilot’s door|
Samples are collected over relatively flat, agricultural land of the Southern Great Plains region of north central Oklahoma. Sampling is conducted in collaboration with Lawrence Berkeley National Laboratory and the U.S. Department of Energy’s Atmospheric Radiation Measurement (ARM) Program / Cloud and Radiation Testbed. Limited sample collection via aircraft at SGP started in September 2002 using a modified manual sampling method. Sample collection with the current programmable flask packages at SGP started in March 2006.