THE CHARACTERISTIC VARIATION OF T_b IN THE ANTARCTIC REGION REVEALED BY NOAA AVHRR CHANNEL-4 DATA

• Main Authors: セコ カツモト, ワダ マコト, アオキ シュンジ, Katsumoto SEKO, Makoto WADA, Shuhji AOKI
• Format: Report
• Language: English
• Published: Water Research Institute, Nagoya University 1991
• Subjects: Antarctic; The Antarctic; Antarc*; Polar meteorology and glaciology; Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=3640; http://id.nii.ac.jp/1291/00003640/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=3640&item_no=1&attribute_id=18&file_no=1

Based on the daily variation of T_b of NOAA AVHRR channel-4 data, several characteristic features of the variation of T_b in the Antarctic region were presented. Remarkable differences in the T_b variation between ocean and continent were found. The amplitude of the seasonal cycle of the T_b variation is much larger over the continent than the ocean, because of the strong inversion over the continent in winter. The short term T_b variation within 10 days over the ocean is controlled by synoptic disturbances. The T_b variation over the continent revealed longer periodicity of a few tens of days. The variation is caused by the cloud intrusion into the Antarctic continent.