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Dispatch 17: Verifying Satellites

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September 28th Slideshow
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Bingkun Luo

September 28, 2019

In this cruise, Bingkun Luo (Ph.D. student, Rosenstiel School of Marine and Atmospheric Science, University of Miami) is a CTD watchstander. He prepares the CTD rosette (see dispatch 2) for deployment and is also responsible for safe operations with the vertical bongo net hauls at CTD stations (see slides 1 and 2). It is difficult to collect hydrographic data in an environment such as the Arctic Ocean. For example, on September 23rd, the wind was strong (25m/s) and CTD deployment was dangerous because the ocean depth was changing rapidly due to ship drift. To avoid collision with the ocean floor, the CTD rosette was stopped at 10 meters above the bottom, but the winds moved the ship toward much shallower waters. Luckily, the CTD team was able to raise the rosette immediately and everything was fine after that.

Today, Bingkun gave a science talk at the daily science meeting (slide 3). In addition to hydrographic data collection with the CTD team, he verifies ocean surface temperature observed from satellites.  In order to improve the accuracy of the satellite sea surface temperature retrievals he estimates uncertainties of satellite data comparing ship-based surface temperatures with temperatures measured by satellites. The corrected satellite data are needed to improve our understanding of rapidly changing environmental conditions of the Arctic Ocean.

Last updated: October 7, 2019

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