Turbulence and eddy regional exchange in the western North Pacific: joint oceanic and atmospheric experiment using R/V New Ocean Researcher 1
Journal
Terrestrial, Atmospheric and Oceanic Sciences
Journal Volume
36
Journal Issue
1
ISSN
1017-0839
2311-7680
Date Issued
2025-10-22
Author(s)
Yang, Kai-Chieh
Chang, Emmy Tsuiyu
Wang, Shih-Hong
Cheng, Yu-Hsin
Chen, Jia-Lin
Fang, Ying-Chih
Chang, Wei-Yu
Tsai, An-Yi
Chen, Chung-Chi
Abstract
Sponsored by the National Science and Technology Council of Taiwan, the programs Sailing to the Blue Sea (SBS), Kuroshio to Turbulence Exchange (KTEX), and the U.S.-Taiwan collaboration program Island Arc Turbulent Eddy Regional Exchange (ARCTERX) jointly conducted a multidisciplinary field campaign aboard the R/V New Ocean Researcher 1 from March 25 to April 19, 2024. The cruise completed a round trip from Kaohsiung to Palau, executing coordinated oceanic and atmospheric observations in the western North Pacific. The scientific objectives of this campaign were to: (1) investigate the physical, biological, and biogeochemical properties of a targeted cyclonic mesoscale eddy in the western North Pacific and its impact on oceanic weather through air-sea interactions; (2) quantify water mass transformation and nutrient flux variability from the North Equatorial Current (NEC) to the Kuroshio; (3) examine the diurnal warm layer and its coupling with atmospheric boundary layer variability in the subtropical and tropical regions; (4) detect potential ground motion in the Philippine Sea basin at the eastern flank of the Gagua Ridge, east to Taiwan; and (5) measure along-track gravity anomaly across the Philippine Sea basin. The campaign successfully sampled a cyclonic eddy centered at (131°E, 18°N), hydrographic transects across the Kuroshio and the NEC, and high-resolution upper ocean temperature profiles in the tropical ocean. To facilitate detailed analyses of the complex cruise data, the ship-based and autonomous observations are introduced here.
Subjects
Air-sea interaction
Biology
Eddy
Kuroshio
Turbulence
Western North Pacific
Publisher
Springer Science and Business Media LLC
Type
journal article