Title: ACE-Asia Surface: Kosan METRI Skyradiometer data Summary: This file is an explanatory note about 'METRI_phase.txt' file. File format: TXT file The result express a aerosol phase function from skyradiometer (Nakajima et al., 1996) Data Category: Surface Network/Source: Kosan, Jeju Observing Frequency: about every three minutes Begin Date: 1 March 2001 End Date: 4 May 2001 Region: ACE-Asia Latitude: 33o 17' N Longitude: 126o 10' E P. I.: Byoung Cheol Choi and Jiyoung Kim Questions about the data should be directed to: jykim@metri.re.kr - Header part (1 lines) : Year(Int.), Month(Int.), Day(Int.), Hour(Int.), Minute(Int.), Time(real hour) - Data part (74 lines) : Each column is as follows. Column No. Elements Units Comments 1 Angle [degree] Theta 2 Phase function at 400nm [unitless] P(theta)/4pi 3 Phase function at 500nm [unitless] P(theta)/4pi 4 Phase function at 675nm [unitless] P(theta)/4pi 5 Phase function at 870nm [unitless] P(theta)/4pi 6 Phase function at 1020nm [unitless] P(theta)/4pi reference Nakajima, T., G. Tonna, R. Rao, Y. Kaufman and B. Holben, 1996: Use of sky brightness measurements from ground for remote sensing of particular polydispersions. App. Opt., 35, 2672-2686.