There are many scientists on board, and many are working together on different data. This is the time zone of London without Daylight Savings Time.Īnother practical reason for choosing to use the same coordinated time is for scientific purposes. ![]() Therefore, we could have chosen any time zone of the world without it having mattered it is just a matter of definition! The scientific team on the research cruise have decided to follow the Coordinated Universal Time, known as UTC, during the whole cruise. During summer, the Arctic has 24 hours of daylight (actually, it is mostly just white). However, which time it really is, is impossible to tell. ![]() Since the longitudes define the time zones, and the longitudes come together at the poles, the time zones in reality change a lot with small distances up here. I have another post coming up on maps can be tricky business in the Arctic.) You can see that the closer you get to the Pole, the closer are the lines/longitudes and therefore the time zones. The first figure below illustrate the time zones of the world on a map of polar stereographic projection (the North Pole is in the middle, and the equator on the outer edge. I assume most people are familiar with this. This is because night and day occur at different times in different places on Earth, due to Earths rotation. When you travel east and west in the world, depending on which longitude (breddegrad) you are on, there are different time zones. I want to talk a bit about time zones and longitudes, which are actually a bit tricky up North. I was surprised by the noticeable difference in light. Transiting 7° south may not sound like much, but it is approximately 780 km (I wrote about the conversion between degrees and distances here). ![]() We transited from the pole further south, to around 82°N 142°W, for these surveys. The last week or so we have been doing bathymetric mapping surveys of the seabed in an area more west, close to Canada. Illustration of the time zones of the world, where the earth is seen from the top ( source).
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