The Vertical Change of Stratospheric Aerosol Size Measured by Two-Color Laser Radar Technique

Iwasaka, Yasunobu

doi:10.5636/jgg.32.303

Cited by 2 publications

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References 11 publications

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“…will again slowly increase. The vertical distribution of N(R*0.15*m)/N(R> 0.25*m) measured at Nagoya using laser radar shows the size distribution of aerosol recovered to usual pattern at latest, in 1977 (Iwasaka, 1980). Under such atmospheric condition, as is shown in Fig.…”

Section: Discussionmentioning

confidence: 58%

Variation of Stratospheric Aerosol Content Measured by Laser Radar

Iwasaka

1981

Journal of the Meteorological Society of Japan

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The decay of stratospheric aerosol content after the volcanic eruption of Mt. Fuego (Oct. 1974) is discussed on the basis of laser radar measurements at Nagoya (35*N, 137*E). The results show that the decay time constant of stratospheric aerosol content is about 2 years, and this value is a little longer than the previous measurements (Hofmann and Rosen, 1977; Russell and Hake, 1977). This discrepancy is due to mainly the difference of observational periods between present and previous analysis, and observational periods were too short to make clear the decay time scale in previous investigations. More recently, Reiter et al. have summarized the results measured at many different laser radar sites (1980). It can be easily found out in their results, though they didn't present the value of decay time scale, that the decay time scale was about 2 years. This value is comparable one with present result.

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Section: Discussionmentioning

confidence: 58%

Variation of Stratospheric Aerosol Content Measured by Laser Radar

Iwasaka

1981

Journal of the Meteorological Society of Japan

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Sulfur budget and H2SO4 evaporation from particles in the upper region of the stratospheric aerosol layer.

Iwasaka

1982

J. geomagn. geoelec

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The evaporation rate of H2SO4 in the upper aerosol region was first estimated from the vertical change of particle size distribution defined by the lidar measurements. The rate was found in the range 15-30 (H2SO4 molecules) cm-3 sec-1. This results indicate that the evaporation is not negligible for the sulfate budget of lower stratosphere, and that it should be necessary to make clear the aeronomic behavior of H2SO4 gas above the aerosol layer.

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The Vertical Change of Stratospheric Aerosol Size Measured by Two-Color Laser Radar Technique

Cited by 2 publications

References 11 publications

Variation of Stratospheric Aerosol Content Measured by Laser Radar

Variation of Stratospheric Aerosol Content Measured by Laser Radar

Sulfur budget and H2SO4 evaporation from particles in the upper region of the stratospheric aerosol layer.

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