Atmospheric effects against the surface temperature measurement by AVHRR in the polar region

• Main Authors: Shinya Tanaka, Kazuya Suzuki, Takashi Yamanouchi, Sadao Kawaguchi
• Format: Report
• Language: English
• Published: Space Systems Depaerment, Fujitsu Ltd./University of Electro-Communications/National Institute of Polar Research/National Institute of Polar Research 1985
• Subjects: Mizuho; Antarc*; Antarctica; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1833; http://id.nii.ac.jp/1291/00001833/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1833&item_no=1&attribute_id=18&file_no=1

Atmospheric effects against the surface temperature measurement by the AVHRR infrared sensors in the polar region are simulated by the LOWT-RAN-6 computer program. The atmospheric transmittance and radiance are calculated using the monthly average of the aerological data at Syowa and Mizuho Stations, Antarctica, and those at Tateno Aerological Observatory for comparison. The atmospheric transmittance at Syowa and Mizuho Stations is larger than 0.9 throughout the year and the brightness temperature detected by the AVHRR infrared sensors is within 1.0 of difference from the surface temperature.