The coarse particle aerosols in the free troposphere around Japan

T. Hayasaka, T. Nakajima, M. Tanaka

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Horizontal and vertical stratifications and volume spectra of tropospheric aerosols were retrieved from measured solar aureole intensities. The results show that bimodal volume spectra of aerosols with a saddle point radius around 0.5μm are generally observed in the troposphere, both within and above the planetary boundary layer. A submicrometer particle mode of the spectra, known as the accumulation mode, dominates the coarse particle mode within the planetary boundary layer, especially in summer, whereas coarse particles were observed frequently in the free troposphere. Synoptic analyses with air mass trajectories, isentropic surfaces, and weather charts suggest that the windblown dust particles injected into the atmosphere in arid regions of eastern Asia are the origin of the coarse particles observed in the free troposphere around Japan. -from Authors

Original languageEnglish
Pages (from-to)14,039-14,047
JournalJournal of Geophysical Research
Volume95
Issue numberD9
DOIs
Publication statusPublished - 1990

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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