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Boaty returns from first mission under the ice | |
admin | |
2018-03-13 | |
发布年 | 2018 |
语种 | 英语 |
国家 | 英国 |
领域 | 资源环境 |
正文(英文) | The yellow high-tech autonomous underwater vehicle (AUV), affectionately known as Boaty McBoatface, has successfully returned from an ambitious science expedition deep below half a kilometre of ice. It is the first time that Boaty has been deployed underneath an ice shelf, marking a significant milestone in proving the vehicle’s capability, and demonstrating the important contribution that AUVs are making in helping scientists understand what happens in hostile and otherwise inaccessible parts of the ocean. In this case, the AUV carried two sets of CTD (Conductivity, Temperature and Depth) sensors to measure salinity and temperature of the water underneath the Filchner-Ronne ice shelf in Antarctica. Covering an area of around 450,000 square km, it holds a greater volume of ice than any other floating glacier tongue. Climate researchers are particularly interested in whether more glacial ice is currently being transported into the ocean, since this process is related to rising sea levels. In addition, so-called ‘deep water’ forms near the ice shelf, which is a key driver of global ocean circulation and therefore impacts upon the climate system everywhere on the planet. Boaty was also equipped with a micro-structure probe to measure ocean turbulence, a sensor to measure the amount of phytoplankton in the water (by measuring the fluorescence of their chlorophyll) and a sensor to detect the turbidity of the water. It spent a total of 51 hours under the Antarctic ice, travelling 108 km and reaching water depths of 944m. Steve McPhail, Head of AUV Development at the National Oceanographic Centre, said:
Prof Adrian Jenkins from British Antarctic Survey was leading the investigation. He said:
Boaty was deployed from January to February 2018 in the southern Weddell Sea from German research vessel RV Polarstern as part of the Filchner Ice Shelf System (FISS) Project– a collaboration involving leading UK research institutions including British Antarctic Survey (BAS), National Oceanography Centre (NOC), Met Office Hadley Centre, University College London, University of Exeter and Oxford University, and international partners including Alfred Wegener Institute (AWI), Germany, and University of Bergen (UiB), Norway. The AUV plays a critical role in the project that aims to investigate and describe the current state of the complex atmosphere-ice-ocean system.
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URL | 查看原文 |
来源平台 | British Antarctic Survey |
文献类型 | 新闻 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/233800 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | admin. Boaty returns from first mission under the ice. 2018. |
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