高分辨率的海底温度计用于使用分布式声学传感器监测内部波浪和上游波浪
Julián David Pelaez Quiñones1, Anthony Sladen2, Aurelien Ponte3
1Université Côte d'Azur, CNRS, Observatoire de la Côte d'Azur, IRD, Géoazur, Sophia Antipolis, 250 rue Albert Einstein, 06560, Valbonne, France. julian.pelaez@geoazur.unice.fr.
Scientific reports
|October 14, 2023
概括
分布式声学传感 (DAS) 将海底光纤电缆转化为高灵敏度温度传感器. 这项技术为监测海洋学过程提供了前所未有的细节,例如内部波浪和上游.
科学领域:
- 海洋学 海洋学 海洋学
- 地质物理学 地质物理学
- 传感器技术 传感器技术
背景情况:
- 温度是一个关键的海洋学变量 (EOV),海底分辨率差.
- 现有的方法很难提供详细的地下和近海底温度数据.
研究的目的:
- 展示分布式声学传感 (DAS) 能力,用于高分辨率的海底温度监测.
- 通过基于DAS的温度异常传感来研究海洋过程.
主要方法:
- 利用数十公里的海底光纤电信电缆作为DAS温度传感器.
- 达到毫克尔文 (mK) 的灵敏度来检测温度异常.
- 用现场海洋学传感器和替代光纤传感器验证DAS观测结果.
主要成果:
- 高分辨率观测在西北地中海连贯的近惯性和超惯性内部波.
- 检测超过5K的热异常,速度超过1K/h.
- 展示DAS在详细监测海底温度波动方面的潜力.
结论:
- DAS技术为海底温度测量提供了一种变革性的方法.
- 该技术在海洋学研究中比传统的温度传感器提供了显著的优势.
- DAS在了解海洋物理,生态和在各种空间和时间尺度上的进化方面具有广泛的应用.
相关概念视频
01:13Equipments Used to Measure Body Temperature
Body temperature can be assessed using various devices and measured in Celsius or Fahrenheit.
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
Glass-bulb Thermometer:
Glass-bulb thermometers are hollow glass tubes with a bulb tip containing liquid such as ethanol or mercury. Historically, glass bulb mercury thermometers were the standard device to measure body temperature. Today, mercury thermometers are prohibited in many countries due to the hazardous effects of mercury and the risk of exposure if the glass bulb breaks. In general,...
01:14Temperature Measurement Sites
A thermometer measures body temperature. The common sites for measuring body temperature are the oral cavity, axillary region, temporal artery, and skin surface, such as the forehead, abdomen, and axilla. True core body temperature is assessed in the rectum, tympanic membrane, pulmonary artery, esophagus, and urinary bladder.
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...
Oral: When assessing oral temperature, the thermometer tip should be placed under the tongue in the posterior sublingual pocket. It offers accurate readings and can be...