Novel temperature-chain drifter for enhanced upper-ocean temperature observation

IF 4.3 2区 工程技术 Q1 ENGINEERING, OCEAN
Jiangyan Fan , Shuangxi Guo , Chenjing Shang , Pengqi Huang , Guanghui Han , Shengqi Zhou , Xiaodong Shang
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Abstract

This study introduces a novel temperature-chain drifter designed to address observational gaps in upper-ocean thermal monitoring. The system combines a self-stabilizing buoy with meteorological sensors, a sea surface conductivity-temperature-depth (CTD) instrument, and a Kevlar-reinforced coaxial temperature chain capable of high-resolution vertical profiling (0–300 m). Real-time positioning and data transmission are achieved via BeiDou/Iridium satellite telemetry, while a solar-energy module ensures uninterrupted operation during observation period. This drifter was tested in a 30-day field deployment in the northern South China Sea with 20-minute sampling intervals and 80 % data transmission success. The results indicate that the drifter’s motion is driven by mesoscale eddy advection, inertial oscillations, tidal forcing, and internal waves. Temperature spectra from the drifter indicate the upper-ocean temperature is modulated by diurnal cooling, tides and internal waves. The advancements of this temperature-chain drifter establish a new paradigm for multi-parameter observation platforms, and it is particularly valuable for capturing dynamic processes in the upper ocean and air-sea interactions, especially during extreme weather events.
用于加强海洋上层温度观测的新型温度链漂移器
本研究介绍了一种新型的温度链漂移器,旨在解决上层海洋热监测中的观测空白。该系统结合了一个带有气象传感器的自稳定浮标、一个海面电导率-温度深度(CTD)仪器,以及一个能够进行高分辨率垂直剖面(0-300米)的芳纶增强同轴温度链。实时定位和数据传输通过北斗/铱星遥测实现,而太阳能模块确保在观测期间不间断运行。在南海北部进行了为期30天的现场部署测试,采样间隔为20分钟,数据传输成功率为80%。结果表明,中尺度涡旋平流、惯性振荡、潮汐强迫和内波驱动了漂流船的运动。漂船的温度谱表明,上层海洋温度受日冷却、潮汐和内波的调制。这种温度链漂移仪的进展为多参数观测平台建立了一个新的范例,它对于捕捉上层海洋和海气相互作用的动态过程,特别是在极端天气事件期间,具有特别的价值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Applied Ocean Research
Applied Ocean Research 地学-工程:大洋
CiteScore
8.70
自引率
7.00%
发文量
316
审稿时长
59 days
期刊介绍: The aim of Applied Ocean Research is to encourage the submission of papers that advance the state of knowledge in a range of topics relevant to ocean engineering.
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