TITLE: ACEASIA_YulinAOT

AUTHOR(S): 

     Michael H. Bergin and Jin Xu
     200 Bobby Dodd Way, Atlanta, GA 30332
     Phone: 404-894-9723
     Fax: 404-894-8266 
     E-mail: mike.bergin@ce.gatech.edu, jin.xu@ce.gatech.edu

1.0 DATA SET OVERVIEW: 

     Spectral aerosol optical depth (AOT) were measured several times 
     daily in the clear-sky conditions (cloud free) with a handheld sun 
     photometer (manufactured by the Solar Light Company, Incorporated.) 
     at wavelength of 380nm, 440nm, 500nm, 675nm, and 870nm, from 
     3/30/2001-4/22/2001.

2.0 INSTRUMENT DESCRIPTION: 

     Handheld sun photometer (manufactured by the Solar Light Company, 
     Incorporated). The sun photometer was calibrated by the Solar Light 
     Company before the field campaign. Uncertainty in the aerosol 
     optical depth is less than 0.01 [Holben et al., 1998].     

3.0 DATA COLLECTION AND PROCESSING: 

     Spectral aerosol optical depth (AOT) were measured several times daily 
     in the clear-sky conditions (cloud free).

4.0 DATA FORMAT: 

     Tab delimited ASCII

5.0 DATA REMARKS: 

     DATA VERSION = 1.0 (August 27, 2001), PRELIMINARY 
     REMARKS = SZA - Solar Zenith Angle	
     REMARKS = AOT380, AOT440, AOT500, AOT675, and AOT870 refer to 
               aerosol optical depth at 380 nm, 400, 500, 675 and 870 
               nm, repectively
     REMARKS = Data point Date/Time provided in UTC

6.0 REFERENCES:

     Holben, B.N., et al., AERONET-A federated instrument network and data 
     archive for aerosol characterization. Remote Sens. Environ., 11, 1-16, 
     1998