日本地球惑星科学連合2019年大会

講演情報

[J] 口頭発表

セッション記号 A (大気水圏科学) » A-CG 大気海洋・環境科学複合領域・一般

[A-CG38] 熱帯インド洋・太平洋におけるマルチスケール大気海洋相互作用

2019年5月28日(火) 10:45 〜 12:15 104 (1F)

コンビーナ:清木 亜矢子(海洋研究開発機構)、東塚 知己(東京大学大学院理学系研究科地球惑星科学専攻)、名倉 元樹((独) 海洋研究開発機構)、釜江 陽一(筑波大学生命環境系)、座長:東塚 知己(東京大学)、釜江 陽一(筑波大学)

11:15 〜 11:30

[ACG38-09] Air-sea flux observation by unmanned autonomous sea surface vehicle in the Tropics - Application of the Wave Glider -

★Invited Papers

*植木 巌1 (1.国立研究開発法人海洋研究開発機構)

キーワード:大気-海洋フラックス、自律型海洋観測プラットフォーム、Wave Glider

Air-sea fluxes of heat and momentum are fundamental variables for the ocean and atmosphere interaction, which influence weather and climate. The air-sea flux measurements; actually measurements of air temperature, humidity, sea surface temperature, winds, and radiations, are mainly conducted by research vessels, mooring buoys, and satellites. Based on these measurements, many types of global air-sea flux products are produced. However, these products still remain large biases and uncertainties in the global fields. Reducing inaccuracies in air-sea fluxes is important for improving long-term weather and climate predictions. For that purpose, we should consider about intensification of in situ measurements, which contribute to improve bulk algorithms, to understand mechanisms of flux variability, and to validate the products as proposed in Community White Papers of air-sea fluxes with a focus on heat and momentum in OceanObs’19. Due to the relatively high cost of research vessel and mooring buoy operations, number of in situ measurements is limited. The sparsity of the in situ measurement in present situation is one of obstacles to improve satellite algorithm development and product validation. Because of recent progress of unmanned autonomous ocean surface vehicles (UAVs) development, we can use these vehicles as a platform for air-sea flux observation. In this study, several field tests and evaluations of the acquired data through comparison with mooring buoys have been conducted especially in the tropical region. The present status of these activities will be introduced in the presentation.