Possible effect of anthropogenic aerosol deposition on snow Albedo reduction at Shinjo, Japan

Hiroki Motoyoshi, Teruo Aoki, Masahiro Hori, Osamu Abe, Shigeto Mochizuki

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

We observed broadband snow albedos in the visible and the near infrared spectral regions with snow pit works of several-day intervals, during the winters of 2001/2002 and 2002/2003 at Shinjo, Japan. We examined the dependence of albedos on snow grain size and on concentration of snow impurities, comparing observations and theoretical calculations using a radiative transfer model for atmosphere-snow system. The comparisons revealed that the snow was contaminated by strong absorptive impurities such as soot additional to moderate absorptive impurities such as mineral dust. Snow albedo reduction after snowfalls (snow aging effect on albedo) observed in both spectral regions corresponded to the growth tendency of snow grains and the increasing concentration of snow impurities with elapsed time after snowfalls. Measurement of the atmospheric aerosols above the snow surface using a laser optical particle counter suggested that wet deposition of atmospheric aerosols caused snow impurities of more than 1 ppmw in mass concentration.

Original languageEnglish
Pages (from-to)137-148
Number of pages12
JournalJournal of the Meteorological Society of Japan
Volume83
Issue number3
Publication statusPublished - Mar 2005
Externally publishedYes

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albedo
snow
aerosol
effect
wet deposition
soot
radiative transfer
near infrared
grain size
laser
dust
atmosphere
winter

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Possible effect of anthropogenic aerosol deposition on snow Albedo reduction at Shinjo, Japan. / Motoyoshi, Hiroki; Aoki, Teruo; Hori, Masahiro; Abe, Osamu; Mochizuki, Shigeto.

In: Journal of the Meteorological Society of Japan, Vol. 83, No. 3, 03.2005, p. 137-148.

Research output: Contribution to journalArticle

Motoyoshi, H, Aoki, T, Hori, M, Abe, O & Mochizuki, S 2005, 'Possible effect of anthropogenic aerosol deposition on snow Albedo reduction at Shinjo, Japan', Journal of the Meteorological Society of Japan, vol. 83, no. 3, pp. 137-148.
Motoyoshi, Hiroki ; Aoki, Teruo ; Hori, Masahiro ; Abe, Osamu ; Mochizuki, Shigeto. / Possible effect of anthropogenic aerosol deposition on snow Albedo reduction at Shinjo, Japan. In: Journal of the Meteorological Society of Japan. 2005 ; Vol. 83, No. 3. pp. 137-148.
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