Eruption of Mt. Pinatubo and climate of Syowa Station

During the last year of the Antarctic Climate Research (ACR) period, two large volcanos erupted. In June 1991,the volcano Pinatubo in the Philippines Islands (15°N, 120°E) erupted and injected a large volcanic cloud in to the lower and middle stratosphere. In August 1991,Mt. Hudson in southern Chile...

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Main Author: Susumu Kaneto
Format: Article
Language:English
Published: National Institute of Polar Research 1997-03-01
Series:Antarctic Record
Online Access:http://doi.org/10.15094/00008976
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author Susumu Kaneto
author_facet Susumu Kaneto
author_sort Susumu Kaneto
collection DOAJ
description During the last year of the Antarctic Climate Research (ACR) period, two large volcanos erupted. In June 1991,the volcano Pinatubo in the Philippines Islands (15°N, 120°E) erupted and injected a large volcanic cloud in to the lower and middle stratosphere. In August 1991,Mt. Hudson in southern Chile (46°S, 73°W) erupted; its volcanic cloud reached to 18km. From NOAA/AVHRR data, within 1991,the volcanic aerosol of Pinatubo dispersed mainly in tropical latitudes and that of Hudson spread in the area south of 40°S. The eruption effects are investigated here by comparing meteorological observation results at Syowa Station (69°S, 39°E) with global analyses. The optical observations which measure direct effects of eruption materials, show a large effect from late 1991. Abnormal deviations were detected in surface temperature and total ozone amount but the occurrence is retarded relative to global average occurrence. Effects on stratospheric temperature were not detected.
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spelling doaj.art-f12bb97364034802b6e22b0d9491a18e2022-12-22T00:32:04ZengNational Institute of Polar ResearchAntarctic Record0085-72892432-079X1997-03-0141128529010.15094/00008976Eruption of Mt. Pinatubo and climate of Syowa StationSusumu Kaneto0Japan Meteorological AgencyDuring the last year of the Antarctic Climate Research (ACR) period, two large volcanos erupted. In June 1991,the volcano Pinatubo in the Philippines Islands (15°N, 120°E) erupted and injected a large volcanic cloud in to the lower and middle stratosphere. In August 1991,Mt. Hudson in southern Chile (46°S, 73°W) erupted; its volcanic cloud reached to 18km. From NOAA/AVHRR data, within 1991,the volcanic aerosol of Pinatubo dispersed mainly in tropical latitudes and that of Hudson spread in the area south of 40°S. The eruption effects are investigated here by comparing meteorological observation results at Syowa Station (69°S, 39°E) with global analyses. The optical observations which measure direct effects of eruption materials, show a large effect from late 1991. Abnormal deviations were detected in surface temperature and total ozone amount but the occurrence is retarded relative to global average occurrence. Effects on stratospheric temperature were not detected.http://doi.org/10.15094/00008976
spellingShingle Susumu Kaneto
Eruption of Mt. Pinatubo and climate of Syowa Station
Antarctic Record
title Eruption of Mt. Pinatubo and climate of Syowa Station
title_full Eruption of Mt. Pinatubo and climate of Syowa Station
title_fullStr Eruption of Mt. Pinatubo and climate of Syowa Station
title_full_unstemmed Eruption of Mt. Pinatubo and climate of Syowa Station
title_short Eruption of Mt. Pinatubo and climate of Syowa Station
title_sort eruption of mt pinatubo and climate of syowa station
url http://doi.org/10.15094/00008976
work_keys_str_mv AT susumukaneto eruptionofmtpinatuboandclimateofsyowastation