'Zhong Shan Da Xue Ji Di' vessel completes first satellite-aircraft-ship coordinated observation in

摘要：On February 1st, during its winter expedition in the Bohai Sea, Sun Yat-sen University's "Zhong Shan Da Xue Ji Di" vessel successf

On February 1st, during its winter expedition in the Bohai Sea, Sun Yat-sen University's "Zhong Shan Da Xue Ji Di" vessel successfully conducted ship-shore collaborative ice observation in the Bohai ice zone near Yingkou, Liaoning Province. This marks the first successful attempt at synchronized observation of sea ice using satellite remote sensing, drone flights, and research vessel operations in the northernmost extent of the sea ice zone in the Northern Hemisphere. The "Zhong Shan Da Xue Ji Di" vessel from Sun Yat-sen University is the first polar icebreaking research ship established by a university in China, equipped with capabilities for full-depth polar scientific exploration.

Ship-based drone observation team operations

Orthophoto mapping by the ship-based drone

According to the research team, at 10 a.m. on February 1st, the vessel initiated drone observation operations. The drone team employed a DJI drone to conduct orthophoto mapping of the Bohai sea ice centered around the vessel, while simultaneously performing CTD observations and ice sampling on the deck. They collected physical, chemical, and ecological parameters, including seawater temperature and salinity, as well as the temperature, salinity, and thickness of the sea ice.

Ice sampling operations from the ship

The expedition, which set sail from Nansha, Guangzhou on January 4th, was organized by Sun Yat-sen University and involved collaboration from 12 research institutions and universities across the country, marking the first comprehensive winter investigation of sea ice, ocean, and ecology in the Bohai Sea.

CTD observations from the ship

This coordinated sea ice observation provides high-precision and accurate validation data for analyzing sea ice conditions in the Bohai Sea, as well as for satellite remote sensing ice retrieval algorithms and product verification. It is also significant for a deeper understanding of the winter sea ice formation and decline processes, along with their impacts on the ecological characteristics and regulatory mechanisms of the Bohai Sea environment.

Source :Lingnan on the Cloud

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