There is a white thing in the air that looks like an airship. What is this for?

A weather airship is a balloon for forecasting the weather. Aerial remote sensing generally refers to a remote sensing technology system that senses the ground from aerial platforms such as airplanes, balloons and airships. The difference between space remote sensing and aerial remote sensing is mainly the different remote sensing platforms and the different heights of remote sensing.

The weather airship is actually a balloon, but it has power facilities and can move or hover at a fixed point. It can be used for weather forecast and large-scale ground monitoring, and now it can also be used for air early warning.