Airborne sunphotometer, airborne in-situ, space-borne, and ground-based measurements of tropospheric aerosol in ACE-2

摘要

The North Atlantic Regional Aerosol CharacterizationudExperiment (ACE-2) of the International Global AtmosphericudChemistry Project (IGAC) ran from 16 June to 25 July 1997.udThe results presented in this study are part of the "Clear-skyudcolumn closure experiment" (CLEARCOLUMN) activity,udone of 6 ACE-2 activities [1]. Clear-sky column closureudexperiments call for characterization of aerosol layers byudsimultaneous measurements using different techniques thatudcan be related using models [2]. ududA wide range of aerosol types was encountered throughoutudthe ACE-2 area, including background Atlantic marine,udEuropean pollution-derived and African mineral dust. In audseries of papers, we reported on ACE-2 CLEARCOLUMNudresults obtained by combining airborne sunphotometer andudin-situ measurements taken aboard the Pelican aircraft, spaceborneudNOAA/VHRR data and ground-based lidar andudsunphotometer measurements [3]-[10]. Those and otherudCLEARCOLUMN results have been summarized in [11]. ududIn this paper we only report on results not shown in thisudform in [3]-[11].