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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Autonomous profiling device to monitor remote water bodies
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Autonomous profiling device to monitor remote water bodies

机译：自主配置设备以监视远程水体

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In tropical climates, most freshwater reservoirs, dams and lakes are prone to annual summer stratification during which bottom water layers near the bed become hypoxic (<2 ml/l) with very low concentrations of dissolved oxygen (DO). This has serious implications to human health, and requires frequent and effective monitoring, particularly during summer months (March May) when water consumption is highest. These water bodies are frequently located in remote areas away from human habitation, making it logistically difficult to access and monitor their water column properties on a regular basis. The need for monitoring temporal changes in freshwater ecosystems is addressed in this note through the description of a patented technology Autonomous Vertical Profiler. (AVP) designed and developed at the National Institute of Oceanography (NIO), Goa, for use in both coastal and freshwater bodies. The AVP was used in experiments to satellite transmit complete time and location referenced high-resolution profiles of temperature, phytoplankton concentration, turbidity and DO from the remote Tillari Dam a freshwater reservoir near Dodamarg, Maharashtra, India. The profiles were received without errors at the Marine Instrumentation Laboratory at NIO. The benefits of in situ time-series profiling with AVP captured the onset of developing hypoxia in early April 2011 over a 9-day unsupervised profiling experiment. A similar 5-day experiment in February 2011 tracked diurnal changes in phytoplankton concentrations through night and day, suggesting a possible interplay between recycled production and photoinhibition.
机译：在热带气候中，大多数淡水水库，水坝和湖泊都倾向于每年夏季分层，在此期间，床层附近的底水层会变得低氧（<2 ml / l），且溶解氧浓度（DO）非常低。这对人类健康具有严重影响，因此需要频繁且有效的监控，尤其是在用水量最高的夏季（3月）。这些水体经常位于远离人类居住的偏远地区，因此从逻辑上来说很难定期访问和监视其水柱特性。本说明中通过描述专利技术“自动垂直剖面仪”解决了监测淡水生态系统时间变化的需求。 （AVP）由果阿国家海洋研究所（NIO）设计和开发，可用于沿海和淡水体。 AVP在实验中用于从遥远的蒂拉里大坝（印度马哈拉施特拉邦多达玛格附近的淡水水库）发送卫星完整时间和位置参考的高分辨率温度，浮游植物浓度，浊度和溶解氧分布图。这些配置文件是在NIO的海洋仪器实验室收到的，没有错误。使用AVP进行原位时序分析的好处是，在经过9天的无监督分析实验后，于2011年4月上旬开始出现了缺氧。 2011年2月进行的一项为期5天的类似实验跟踪了昼夜浮游植物浓度的昼夜变化，表明回收生产与光抑制之间可能存在相互作用。

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