THE CHARACTERISTIC VARIATION OF T_b IN THE ANTARCTIC REGION REVEALED BY NOAA AVHRR CHANNEL-4 DATA
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 variati...
Main Authors: | , , , , , |
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Format: | Report |
Language: | English |
Published: |
Water Research Institute, Nagoya University
1991
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Subjects: | |
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 |
Summary: | 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. |
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