Title: ACE-Asia Database_Gosan MOUDI_1.1 This database includes the MOUDI sampler particulate matter mass concentrations collected from sampling at the Gosan Supersite (33.17E, 126.10N) located on Jeju Island, South Korea during March 31 to May 3, 2001 as part the ACE-Asia Experiment. The times and dates included in this database are UTC. Please direct any questions about the data to: Rachelle Duvall Water Science and Engineering Laboratory RM 152 660 N. Park Street Madison, WI 53706 (608) 262-4322 (office) (608) 262-0454 (fax) Email Address: rmduvall@students.wisc.edu Samples were collected each day for 24-hrs using a MOUDI Sampler (Model #110, MSP Corp). Columns 1 and 2 contain the start and stop sampling times in UTC for the corresponding sample ID. Column 6 lists the size cut for the corresponding sample number. A 5% uncertainty was accounted for in the mass measurement resulting from uncertainty in the sampler airflow rate measurements. Rachelle Duvall January 29, 2003