Visit the historical high temperature at 43 ° C of Jianyang Station of Chengdu High temperature "champion"

Cover reporter Wu Bingqing intern Zhou Wu Junyan

On August 15th, on the first day of the end, the highest temperature at Jianyang Station in Chengdu reached 43.0 ° C. This is the ninth breakthrough record of Jianyang's highest temperature this year. "On August 12, it came to August 15th. The temperature of Jianyang Station was breaking the record every day." Said Yang Ting, deputy director of the Meteorological Observatory of Jianyang City.

This summer, in the high temperature rankings of various districts and counties in Chengdu, the heat of Jianyang Station is "one of the best". On August 16, the cover news came to the Jianyang National Meteorological Observation Station to see how the recorded temperature was measured.

Jianyang National Meteorological Observation Station is located on the top of the mountain, surrounded by empty, and there are no high buildings. This is also the "hard indicator" of the site selection of meteorological observation stations.

The reporter saw at the scene that in the observation field of about 300 square meters, a variety of meteorological observation instruments such as shutter box, rainfall sensor, automatic rainworthy observation instrument, sunshine sensor, and floor temperature field were installed. The air temperature measurement is performed in the shutters.

"The louver box is 1 meter 5 meters away from the ground, which can prevent wind and rain, prevent direct sunlight and ground reflection. At the same time, the shutters can ensure air circulation and truly reflect the atmospheric temperature when other factors are prevented." Yang Ting introduced.

There are 3 high -precision thermometers and 1 humidity meter in the louver box. The measured air temperature data is transmitted to the computer in real time by the data collector. At 14:40 on the 16th, the reporter measured the ground temperature on the spot to be 57.5 ° C, while the atmospheric temperature recorded in the computer was 40.5 ° C. The ground temperature test is the ground temperature that is absorbed by the ground after the sun is direct. "This is the difference between temperature and surface temperature." Yang Ting explained.

In addition, many netizens have questioned the difference between the temperature and temperature of the somatoscope. In this regard, Yang Ting introduced that in addition to the temperature of the atmospheric temperature, the sample temperature is also related to humidity, wind speed, and solar radiation.

Jianyang's long -term "occupation" of the Chengdu high temperature champion is the hottest of Jianyang?

Yang Ting introduced that there are many reasons. First of all, the altitude of Jianyang Station is the lowest in all national meteorological observation stations in Chengdu. "Under the influence of sinking air flow, the phenomenon of sinking temperature from the heating from high to low from high altitude to low altitude has increased the temperature near the ground, and the temperature near the ground has increased significantly. The lowest height of Jianyang's heating up is more obvious. "

In addition, due to the high basal temperature of Jianyang Station during the day, coupled with the recent wind speed and small heat exchange, the temperature at night will be higher, and the heat is superimposed. Therefore, the highest temperature in Jianyang is always prominent.

From the perspective of climatic characteristics and geographical location, Chengdu is located on the edge of the Qinghai -Tibet Plateau. It transitions from the plateau to the east to east, and the altitude has dropped sharply.

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