Meteorological observations at Syowa Station in 1982 by the 23rd Japanese Antarctic Research Expedition

Abstract

This paper describes the results of meteorological observations (mainly surface and upper air) from 1 February 1982 to 31 January 1983 at Syowa Station, carried out by the 23rd Meteorological Observation Team of the Japanese Antarctic Research Expedition. The observations and the statistics of surface and aerological data were automatically processed, same as the 22nd Observation Team, by the AMOS (Automated Meteorological Observation System). On 1 September 1982,a trouble occurred in the disk equipment of the AMOS, and after that the upper air observations were carried out with the manual method. Remarkable characteristics are as follows : 1) The ten-day mean temperature of late August and early September was lower than the normal values over 5℃. A minimum temperature -45.3℃ recorded on 4 September 1982 was the lowest value since the observation had begun at Syowa Station. 2) Forty-two blizzards were encountered, though they did not last longer than several days. 3) The snow depth measured on 30 October 1982 was 105.6cm, which was deeper than the normal value through the year.