The actual measurement is 40 ° C+, but the meteorological department is released at 38 ° C!The weather forecast is not allowed?

Recently, some citizens report

Outdoor measure temperature has been 40 ° C+

but,

The highest temperature released on the day of the meteorological department was 38.8 ℃

Picture source: Zhaoqing Xijiang.com

This data is obviously different

Is it ...

Please calm down

Listen to Xiaobian and talk

The temperature is not you want to test, you can test it if you want to test

The temperature measured you imagine ↓↓

In fact, the temperature measurement of the meteorological department ↓↓

According to the current unified regulations of the World Meteorological Organization (WMO), the temperature released by the current meteorological department refers to the air temperature that the air circulation in the wild and not under the sun. The temperaturemeter that measures the temperature should be placed in the louver box. The shutters must be located on the lawn, 1.5 meters away from the ground, and the surroundings are wide. There are no tall buildings, trees, etc. to block the wind or block the sun. This can avoid the direct irradiation of the thermometer directly, and it can also reduce the interference of temperature measurement. At the same place, the temperature of the shutters, cement roads, and asphalt roads is different. In the case of strong sunshine, the temperature of 1.5 meters of cement and asphalt roads is often higher than the temperature measured in the shutters. It will often be higher than the ground or metal surface. The "temperature" measured in these places cannot be used as a representative value of a local area due to excessive interference factors.

The temperature temperature is affected by the environment, humidity, and individual differences

There is also a difference between people's somatosensory temperature and the temperature measured in the louver. The temperature temperature is the temperature that everyone feels after the contact with the outside world, and there are many factors that affect the temperature temperature. On the one hand, the objective environment of everyone is different. It is in the park or on the cement road, in a ventilation or a closed environment, and the feeling of temperature is different.

Some meteorological professionals once had the same time in the day,

The same height from the ground

Select three different scenarios for temperature testing ↓↓

On the other hand, the physical temperature and the humidity of the atmosphere are closely related. If the humidity of the air is relatively large, people will feel sullen. Even if there is no high temperature weather above 35 ° C, as long as the temperature reaches about 33 ° C and the relative humidity reaches 80%, the relative humidity reaches 80%. People will feel very sultry, uncomfortable, and even easy to heat stroke. If the temperature is above 35 ° C, the air is relatively dry and windy. Although the sun will feel the sun, the human body will not be so uncomfortable. This can also explain why at the same temperature, the south will feel more uncomfortable than in the north. In addition, the individual differences of each person can also cause different somatosensory temperatures. For example, the clothing you wear is white or black. Under the sun, it will feel different; the activity is different, the temperature feels different; It is also related to personal mood.

Explain

Below we continue to pay attention to high temperature weather

Weather forecast

It is expected that the city's high temperature and hot weather will be maintained in the next few days.

Specific forecast:

From the 28th to 30th, the sun is cloudy, with the highest temperature of 37 to 38 ° C.

From the 31st to August 1st, the clouds are sunny, and there will be short -term thunderstorms in the afternoon, with the highest temperature of 36 to 37 ° C.

Looking forward to August 2nd to 3rd, cloudy, thunderstorms.

Source: Zhaoqing weather colorful weather

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