Heat Flow Measurement from Diffuse Hydrothermal Vent Fields

扩散热液喷口场的热流测量

• 批准号: 8917448
• 负责人: Albert Williams
• 金额: $ 14.87万
• 依托单位: Woods Hole Oceanographic Institution
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-03-15 至 1993-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8917448&HistoricalAwards=false
• 关键词: Heat; Flow; Measurement; Diffuse; Hydrothermal

The total heat and fluid output of diffuse hydrothermal ventingat oceanic ridge crests is unknown on the vent field scale. Likewise, its variability in time has not been measured. The investigators have formulated a hydrodynamic model of this flow to guide the measurements. The model is currenty being studied in their laboratory. This model will be used to guide the design of, and interpret the results from a sensor array to monitor diffuse hydrothermal flow. The measurements will be made using proven deep-sea instruments; the Benthic Acoustic Stress Sensor (BASS); and thermistor moorings. This sensor array will lead to a techniquefor monitoring the activity of entire diffuse hydrothermal fields over long-term developments. Coupled with methods for monitoring black smoker flow that have already been developed,it will eventually be possible to monitor the total output of heat from a hydrothermal vent field.

在喷口区域尺度上，洋脊扩散热液喷发的总热量和流体输出是未知的。同样，它在时间上的变异性也没有被测量到。研究人员已经建立了这种流动的流体动力学模型来指导测量。这个模型目前正在他们的实验室里研究。该模型将用于指导传感器阵列的设计，并解释传感器阵列的结果，以监测扩散的热液流动。测量将使用经过验证的深海仪器、海底声应力传感器(BASS)和热敏电阻系泊装置进行。这一传感器阵列将带来一种技术，用于在长期发展中监测整个扩散热液场的活动。与已经开发的监测黑烟气流的方法相结合，最终将有可能监测热液喷口区域的总热量输出。