Meteorological observations at Syowa Station in 1999 by the 40th Japanese Antarctic Research Expedition

This report presents the results of meteorological observations at Syowa Station from February 1, 1999 through January 31, 2000, carried out by the 40th Japanese Antarctic Research Expedition (JARE-40). The meteorological observation method, measuring instruments, means to compile statistics, and ot...

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Main Authors: Keishiro Higashijima, Tatsuru Sato, Kazuya Yasugahira, Eishin Murakata, Kyouichi Kawahara
Format: Article in Journal/Newspaper
Language:English
Published: National Institute of Polar Research 2003
Subjects:
geo
Online Access:https://doi.org/10.15094/00009263
https://doaj.org/article/6aa9006f88474d79854d629dac59e2dc
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spelling fttriple:oai:gotriple.eu:oai:doaj.org/article:6aa9006f88474d79854d629dac59e2dc 2023-05-15T13:58:27+02:00 Meteorological observations at Syowa Station in 1999 by the 40th Japanese Antarctic Research Expedition Keishiro Higashijima Tatsuru Sato Kazuya Yasugahira Eishin Murakata Kyouichi Kawahara 2003-07-01 https://doi.org/10.15094/00009263 https://doaj.org/article/6aa9006f88474d79854d629dac59e2dc en other eng National Institute of Polar Research doi:10.15094/00009263 0085-7289 2432-079X https://doaj.org/article/6aa9006f88474d79854d629dac59e2dc undefined Antarctic Record, Vol 47, Iss 2, Pp 171-271 (2003) geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2003 fttriple https://doi.org/10.15094/00009263 2023-01-22T18:10:40Z This report presents the results of meteorological observations at Syowa Station from February 1, 1999 through January 31, 2000, carried out by the 40th Japanese Antarctic Research Expedition (JARE-40). The meteorological observation method, measuring instruments, means to compile statistics, and other aspects of the work were almost the same as those used by the 39th Japanese Antarctic Research Expedition. Remarkable weather phenomena during the wintering period are as follows: 1) In the surface weather observations, in July, December and January, the atmospheric temperature was significantly lower recorded compared to normal average years, and also the atmospheric pressure was significantly lower in May, October, December and January. The lowest sea level pressure, 932.1hPa was recorded during a severe blizzard on October 5 for the JARE-40 period (the 2nd lowest in history). There were 25-blizzards of which 4 were class A, 10 class B, and 11 class C, the same level as in a normal year.2) As a result of total ozone observation, the large-scale ozone hole was observed, as in the previous year, and the monthly average amount of total ozone in November recorded the lowest ever. Then, the ozone hole disappeared in mid-December, however, the recovery of the total amount of ozone was the slowest in years.3) Because, the temperature rise for the stratosphere was delayed, record-low monthly average temperature was observed in the lower stratosphere in springtime.4) By observing with an aerosol sonde, we observed cloud particles of polar stratospheric cloud (PSCs), which are thought to be the most important cause of ozone holes formed in the Antarctic lower stratosphere in springtime.5) In observation of surface ozone concentration, the rapid decrease of surface ozone concentration has been observed continuously, since JARE-38 started this observation. Article in Journal/Newspaper Antarc* Antarctic Unknown Antarctic Syowa Station The Antarctic
institution Open Polar
collection Unknown
op_collection_id fttriple
language English
topic geo
spellingShingle geo
Keishiro Higashijima
Tatsuru Sato
Kazuya Yasugahira
Eishin Murakata
Kyouichi Kawahara
Meteorological observations at Syowa Station in 1999 by the 40th Japanese Antarctic Research Expedition
topic_facet geo
description This report presents the results of meteorological observations at Syowa Station from February 1, 1999 through January 31, 2000, carried out by the 40th Japanese Antarctic Research Expedition (JARE-40). The meteorological observation method, measuring instruments, means to compile statistics, and other aspects of the work were almost the same as those used by the 39th Japanese Antarctic Research Expedition. Remarkable weather phenomena during the wintering period are as follows: 1) In the surface weather observations, in July, December and January, the atmospheric temperature was significantly lower recorded compared to normal average years, and also the atmospheric pressure was significantly lower in May, October, December and January. The lowest sea level pressure, 932.1hPa was recorded during a severe blizzard on October 5 for the JARE-40 period (the 2nd lowest in history). There were 25-blizzards of which 4 were class A, 10 class B, and 11 class C, the same level as in a normal year.2) As a result of total ozone observation, the large-scale ozone hole was observed, as in the previous year, and the monthly average amount of total ozone in November recorded the lowest ever. Then, the ozone hole disappeared in mid-December, however, the recovery of the total amount of ozone was the slowest in years.3) Because, the temperature rise for the stratosphere was delayed, record-low monthly average temperature was observed in the lower stratosphere in springtime.4) By observing with an aerosol sonde, we observed cloud particles of polar stratospheric cloud (PSCs), which are thought to be the most important cause of ozone holes formed in the Antarctic lower stratosphere in springtime.5) In observation of surface ozone concentration, the rapid decrease of surface ozone concentration has been observed continuously, since JARE-38 started this observation.
format Article in Journal/Newspaper
author Keishiro Higashijima
Tatsuru Sato
Kazuya Yasugahira
Eishin Murakata
Kyouichi Kawahara
author_facet Keishiro Higashijima
Tatsuru Sato
Kazuya Yasugahira
Eishin Murakata
Kyouichi Kawahara
author_sort Keishiro Higashijima
title Meteorological observations at Syowa Station in 1999 by the 40th Japanese Antarctic Research Expedition
title_short Meteorological observations at Syowa Station in 1999 by the 40th Japanese Antarctic Research Expedition
title_full Meteorological observations at Syowa Station in 1999 by the 40th Japanese Antarctic Research Expedition
title_fullStr Meteorological observations at Syowa Station in 1999 by the 40th Japanese Antarctic Research Expedition
title_full_unstemmed Meteorological observations at Syowa Station in 1999 by the 40th Japanese Antarctic Research Expedition
title_sort meteorological observations at syowa station in 1999 by the 40th japanese antarctic research expedition
publisher National Institute of Polar Research
publishDate 2003
url https://doi.org/10.15094/00009263
https://doaj.org/article/6aa9006f88474d79854d629dac59e2dc
geographic Antarctic
Syowa Station
The Antarctic
geographic_facet Antarctic
Syowa Station
The Antarctic
genre Antarc*
Antarctic
genre_facet Antarc*
Antarctic
op_source Antarctic Record, Vol 47, Iss 2, Pp 171-271 (2003)
op_relation doi:10.15094/00009263
0085-7289
2432-079X
https://doaj.org/article/6aa9006f88474d79854d629dac59e2dc
op_rights undefined
op_doi https://doi.org/10.15094/00009263
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