東アジアにおける夏季地上気圧の長期トレンドと熱帯太平洋海面水温変動との関係

• Main Authors: 永田, 玲奈, 78149, 三上, 岳彦, 78150, NAGATA, Rena, 78151, MIKAMI, Takehiko, 78152
• Language: Japanese
• Published: お茶の水女子大学大学院人間文化創成科学研究科 2010
• Subjects: 051; 地上気圧; 長期トレンド; 北太平洋高気圧; オホーツク海高気圧; 海面水温; Sea level pressure; Long-term trends; North Pacific subtropical high; Okhotsk high; Sea surface temperature; Barents Sea; Okhotsk; Pacific; okhotsk sea
• Online Access: https://teapot.lib.ocha.ac.jp/record/39505/files/36_345-352.pdf

application/pdf 紀要論文 Long-term trends in summer sea level pressure (SLP) over East Asia and its relation to sea surface temperature (SST) variability in the tropical Pacific are investigated for the period 1901-2000, using the Hadley Center sea level pressure dataset (HadSLP2) and the extended reconstructed SST (ERSST). In June and July, SLP shows increasing trends over the subtropical western Pacific and the Okhotsk Sea, indicating the strengthened North Pacific subtropical high and Okhotsk high. The two highs likely become strengthened due to the increase of SST over the eastern tropical Pacific. In August, the Okhotsk high alone strengthened. The SLP trends show a wave-train pattern from the coastal region of the Barents Sea to the Okhotsk Sea. A possible factor for the strengthened Okhotsk high in August may be eastward Rossby wave propagation from the coastal region of the Barents Sea suggested by Ogi et al. (2004). departmental bulletin paper