Reason: When China residents celebrated the Spring Festival, Antarctic expedition members were conducting scientific research.

The seasons in Antarctica are opposite to those in the northern hemisphere, with only winter and summer. When China residents celebrate the Spring Festival, it is summer in Antarctica, and the polar days in high latitudes in Antarctica can last for 5-6 months. At the same time, there is little cloud cover in summer, and both short-wave radiation and long-wave radiation can be fully incident. June+10 in 5438, because the solar radiation angle can reach the maximum, the total radiation can reach the maximum. Although the reflectivity of the ice surface is higher than 80%, the summer temperature in Antarctica has obviously increased. This is a good opportunity for scientific investigation.

On the contrary, in winter in Antarctica, the Antarctic continent is almost completely exposed to the sun because of the low angle of solar radiation. That is, the extreme night. This situation is certainly not suitable for scientific investigation.