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

元データ 国立極地研究所

概要

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.

著者

Wada Makoto National Institute For Polar Research
Aoki Shuhji Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University
AOKI Shuhji National Institute of Polar Research
SEKO Katsumoto Water Research Institute, Nagoya University
Aoki S Center For Atmospheric And Oceanic Studies Graduate School Of Science Tohoku University
Aoki Shuji Center For Atmospheric And Oceanic Studies Graduate School Of Sci. Tohoku Univ.
Aoki Shuhji Faculty Of Science Tohoku University
Aoki Syuji National Institute Of Polar Research
Wada M National Institute Of Polar Research
Seko Katsumoto Water Research Institute Nagoya University
Wada Makoto National Institute Of Polar Research Organization Of Information And Systems
Wada Makoto National Inst. Polar Res. Tokyo

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