Title: ACE-Asia Surface Summary: Aerosol number concentrations are measured using OPC(Optical Particle Counter) at Kosan Super site. Column No. 1 2 3 4 5 6 7 8 9 10 Month/Day/Year Time CH1 CH2 CH3 CH4 CH5 CH6 CH7 CH8 Particle Range (0.3-0.5)(0.5-0.8)(0.8-1.35)(1.35-2.23)(2.23-3.67)(3.67-6.06)(6.06-10.0)(10.-25.0) Unit LST #/cm3 #/cm3 #/cm3 #/cm3 #/cm3 #/cm3 #/cm3 #/cm3 Data Catagory: Surface, OPC Network/Source: Kosan, Jeju Observing Frequency: about or less than 10 minutes Begin Date: 10 April 2001 End Date: 29 April 2001 Region: ACE-Asia Latitude: 33o 17' N Longitude: 126o 10' E Questions about the data should be directed to: P. I.: Byoung-Cheol Choi and Jiyoung Kim Questions about the data should be directed to: jykim@metri.re.kr