By using observations from the Aerosol Robotic Network (AERONET), aerosol types are classified according to dominant size mode and radiation absorptivity as determined by fine-mode fraction (FMF) and single-scattering albedo (SSA), respectively. The aerosol type from anthropogenic sources is significantly different with regard to location and season, while dust aerosol is observed persistently over North Africa and the Arabian Peninsula. For four reference locations where different aerosol types are observed, time series and optical properties for each aerosol type are investigated. The results show that aerosol types are strongly affected by their sources and partly affected by relative humidity. The analysis and methodology of this study can be used to compare aerosol classification results from satellite and chemical transport models, as well as to analyze aerosol characteristics on a global scale over land for which satellite observations need to be improved.
Bibliographical noteFunding Information:
We thank the principal investigators and their staff for establishing and maintaining the AERONET sites used in this investigation. This research was supported by the Eco-technopia 21 project under grant 121-071-055 by the Korea Ministry of Environment , Republic of Korea, as well as by the R&D project on the construction and application of optical observation of dust by the National Institute of Meteorological Research . This research was partially supported by the Brain Korea 21 (BK21) program for J. Kim and J. Lee.
All Science Journal Classification (ASJC) codes
- Environmental Science(all)
- Atmospheric Science