[Winter Olympics asks "Ji"] What "black technology" did the weather station of Zhangjiakou competition area use?
[Explanation] The competitions in the Zhangjiakou Division of the Beijing 2022 Winter Olympics are mostly held in outdoor mountains, and many events have harsh weather conditions.
In order to provide refined weather services and ensure the smooth progress of the competition, the Zhangjiakou competition area has set up dozens of weather stations in the core area. Which "black technologies" are used in these weather stations, today I will invite relevant experts to give an on-site introduction.
[Concurrent] Wang Xuhai, member of the Zhangjiakou weather equipment support team for the Beijing 2022 Winter Olympics
We are now at the Cross Country Station No. 2 which is located in the National Cross Country Ski Center. For stations like this, we are currently in the Genting Stadium Group and Gu Yangshu Stadium Group. We have built a total of 42 sets.
We are currently using more advanced technology for this station. This is a visibility sensor. Its principle is to use this laser technology to send and receive. It can measure our current visibility, and then in the past (over there ) One, this is also relatively advanced in our country now. It is a (measurement) wind sensor, which can measure the wind direction and wind speed, and this also uses the more advanced ultrasonic technology.
This is our traditional louver box, which may have been common to everyone in the past, but now this one is different from the previous ones in terms of size and materials.
This is now relatively advanced.
There are temperature sensors and humidity sensors inside.
The previous one is mainly powered by a solar panel, because most of the stations like this are in the wild, so the mains power supply is not connected to the city, so we also use solar energy now, which can also be independently powered all the time.
This is our snow depth (observation instrument). It also uses an infrared (laser) technology to detect the depth of snow. Above it is an infrared (laser) emitter that hits our ground. We have a datum plane on the ground. , There is a reference board, that point is equivalent to the zero point by default, and then based on this reflection, calculate the thickness of the snow.
This (device) is similar to measuring infrared snow temperature, and this small camera is also an infrared snow temperature sensor.
This is a weighing precipitation sensor.
Its principle is to measure precipitation through rapid response to changes in the quality of precipitation in the bucket. It can measure precipitation in different phases of solid, liquid, and mixed states.
The frequency of wind collection is now on the second level, that is, one data is output every second. Our data is also for forecasters such as 100-meter-level and minute-level refined forecasts, and it also provides good data support.
Reporter Ai Guangde reports from Zhangjiakou, Hebei
Editor in charge: [Li Ji]