Meteorological station staff put the thermometer in when measuring the temperature?

When measuring the temperature, the weather station staff put the thermometer in the white shutter box at the measuring point.

White shutters can reflect heat radiation, while sunlight of other colors will make the temperature of air inside the shutters significantly higher than that outside the shutters, and the measured temperature is not the temperature of air in the environment. If the thermometer is placed in a closed box, it will not measure the ambient temperature. This is because the air is not circulating and the temperature inside and outside the box is not equal.

If the thermometer is placed outdoors, it can't measure the temperature. This is because when the sun is shining directly, the temperature of the thermometer itself is not equal to the temperature of the surrounding air. It is also to avoid the direct contact between the rain and snow and the thermometer, resulting in measurement errors.

Extended data

Classification of meteorological observation stations

First, the ground meteorological station

Ground meteorological stations can observe meteorological elements in the near-surface atmosphere and some phenomena in the free atmosphere. Many ground meteorological observation projects are carried out by various instruments fixed in the observation site, so the selection and maintenance of the site and observation site of meteorological stations and the installation of instruments have great influence on the representativeness, accuracy and comparability of the data.

Second, the high-altitude meteorological station

The high-altitude meteorological station can measure the physical and chemical characteristics of the free atmosphere from the near surface to 30 kilometers or even higher. In addition, other irregular detection contents include boundary layer detection of atmospheric conditions below 2 km, meteorological aircraft detection for measuring special projects and meteorological rocket sounding.

Three. Satellite meteorological observation station

Satellite meteorological observation stations are installed on satellites to measure meteorological elements such as temperature, humidity, clouds and radiation, as well as various weather phenomena. Satellites specially used for meteorological purposes are called meteorological satellites. According to the use of meteorological satellites, they are also divided into experimental satellites, which mainly test various meteorological satellite remote sensing instruments and new technologies, and then switch to operational meteorological satellites to use operational satellites after the test is successful.

Baidu encyclopedia-meteorological observation station