会议专题

Aerosol Light Extinction Measurements of Urban and Regional Particulates Using a Cavity Attenuated Phase Shift-Based (CAPS PMex) Monitor

We present results of optical property characterization of ambient particulates during field deployments where measurements of aerosol light extinction are obtained by using a cavity attenuated phase shift-based particle extinction monitor (the CAPS PMex). The CAPS PMex ama eleirgaohssuto-rlw.e meTiwgehnott C,s c A(o3Pm-Sσp PdacMett eeixnc tsiintorsnutr mulimmeneitnt toasfb (<loe3p t eMor apmtien-r1g ffo oarrtm w1 sap vrineeltceeinsgger taahtnsio don fa t5cic3mu0er aa)n todef e6ax3mt0ib nnicemtni)ot w n ere is deployed during the CalNex 2010 study (May 14 – June 16, 2010) in Pasadena, CA. A very strong diurnal variation in the particle extinction was detected at both wavelengths, with peak extinctions reaching 200 Mm-1. In addition, a CAPS PMex monitor operating at a wavelength of 530 nm was deployed in a remote rural location, the IIMPROVE/CASTNET site (Estes Park, CO) at an altitude of ~ 3000 m from mid-August through September 2010. Ambient levels of particle extinction generally varied between 0 and 5 Mm- except for a short period during which a biomass burning plume emanating from a site located 40 km southeast of the measurement site passed through the area.

extinction aerosol optical properties cavity attenuated phase shift cavity enhanced

Paola Massoli Paul L. Kebabian Timothy B. Onasch Andrew Freedman

Center for Sensor Systems and Technology,Aerodyne Research,Inc.,Billerica,MA 01821,U.S.A.

国际会议

第七届亚洲气溶胶会议

西安

英文

87-93

2011-08-17(万方平台首次上网日期,不代表论文的发表时间)