Measured and calculated longwave radiation fluxes and their year to year variation at Mizuho Station, Antarctica

• Main Author: Takashi Yamanouchi
• Format: Report
• Language: English
• Published: National Institute of Polar Research 1984
• Subjects: Mizuho; Mizuho Station; Antarc*; Antarctica; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1665; http://id.nii.ac.jp/1291/00001665/; https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1665&item_no=1&attribute_id=18&file_no=1

Together with measurements at Mizuho Station during POLEX-South, longwave radiation fluxes are calculated for the same measurement conditions. Comparing the measured and calculated downward longwave fluxes, good agreement is found for most months in 1979 and several months in 1980; however, large disagreements are seen for winter months in 1980. The variation of longwave radiation between 1979 and 1980 is examined using measured and calculated fluxes. The measured downward longwave flux in the winter of 1980 was extremely large compared with the measured flux in 1979 and the calculated flux in 1980. This large amount cannot be explained only by the difference in temperature and water vapor amount. Calculated longwave fluxes also show differences between 1979 and 1980; but these can be explained by temperature and water vapor amount. Misinterpretation of cloud amount is suspected.