Changes in stratospheric aerosols and solar insolation due to Mt. Pinatubo eruption as observed over the western Pacific

Details Changes in stratospheric aerosols and solar insolation due to Mt. Pinatubo eruption as observed over the western Pacific Changes in stratospheric aerosols and solar insolation due to Mt. Pinatubo eruption as observed over the western Pacific

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21.1137h&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 12, p. 1137-1140

Physics

5

Aerosols, Air Sampling, Atmospheric General Circulation Models, Insolation, Radiative Heat Transfer, Solar Radiation, Stratosphere, Volcanoes, Pacific Ocean, Photometers, Photometry, Pyranometers, Radiation Measurement, Temporal Distribution, Time Series Analysis

Scientific paper

Effects of the Mt. Pinatubo eruption on the stratospheric aerosols and the solar insolation over the Western Pacific were estimated by sunphotometer and pyranometer on board ships. The sunphotometer measurements showed that the columnar aerosol optical thickness increased by 0.3 at 500 nm over the latitude from 30 deg N to 30 deg S, while that without the influence of volcanic eruptions is less than 0.1. The aerosol optical thickness became minimum in the summer of 1992, and increased again after the summer. The shipboard pyranometer measurements showed that solar insolation decreased after the eruption by 1.4 approximately 4.1 % compared with that before the eruption. This value is larger than that calculated with radiative transfer code, based on the aerosol model estimated from the sunphotometry.

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