Individual aerosol particles in the Antarctic uper troposphere

• Main Authors: Yasunobu Iwasaka, Kikuo Okada, Akira Ono
• Format: Report
• Language: English
• Published: Water Research Institute, Nagoya University 1985
• Subjects: Antarctic; The Antarctic; Antarc*; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1826; http://id.nii.ac.jp/1291/00001826/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1826&item_no=1&attribute_id=18&file_no=1

Individual aerosol particles were collected in the Antarctic upper troposphere (24000ft=7.2km, 15000ft=4.5km and 12000ft=3.6km) and morphological features of the particles were investigated through electron microscopy. The results suggested that sulfate-containing particles were dominant in the submicron size range throughout three measurements made on 25 January 1983,29 October 1983 and 13 January 1984. At the end of January 1983 particles with irregular shape coated with sulfuric acid solution were present at an altitude of 24000ft=7.2km. The presence of these particles would be due to the transportation of particles originated from the eruption of El Chichon (April 1982,Mexico).