What should the temperature be measured in?
The temperature measurement should generally be carried out outdoors in a cool and ventilated place.
Introduction to temperature:
In meteorology, the physical quantity that represents the degree of hotness and coldness of the air is called air temperature, or air temperature for short. The international standard unit of temperature measurement is degrees Celsius (℃).
The temperature mentioned in the weather forecast refers to the air temperature measured in the open air without direct sunlight (usually measured in a blind box). The maximum temperature is the highest value of the temperature in a day, which usually occurs between 14 and 15 o'clock; the minimum temperature is the lowest value of the temperature in a day, which usually occurs before sunrise.
Definition:
The temperature mentioned in the weather forecast is measured on the thermometer in the shutter 1.5 meters above the ground in the observation field. It has good ventilation and avoids direct sunlight, so it has better representativeness. The difference in temperature is one of the main factors causing the difference between the natural landscape and our living environment, and is very closely related to our lives.
Air temperature records can characterize the thermal conditions of a place and are indispensable both in theoretical research and in applications in national defense and economic construction. Temperature is one of the conventional elements to be measured in surface meteorological observations.
The temperature is measured at regular intervals (the basic station observes 4 times a day, namely 02, 08, 14, and 20; some stations observe 3 times a day according to actual conditions, namely 08, 08, and 20). 14 and 20. The base station observes 24 times a day), the daily maximum and daily minimum temperatures.
Usually people use the value of atmospheric temperature to reflect the degree of hotness and coldness of the atmosphere. Our country uses the Celsius temperature scale, expressed in ℃ and read as degrees Celsius.
Average temperature:
Refers to the arithmetic mean of the temperature values observed during a certain period of time. Depending on the calculation time, there can be average temperature of a certain day, average temperature of a certain month, average temperature of a certain year, etc. The temperature conditions for a day are usually expressed through the average temperature, which is the average temperature.
Since different weather stations have different number of observations per day, the Chinese Meteorological Department uniformly stipulates that the daily average temperature is the average of the temperatures measured four times at 02:00, 08:00, 14:00, and 20:00 every day. Be accurate to 1/10 degree. In addition to the daily average temperature, there are also climatic (5-day), ten-day (10-day), monthly, and annual average temperatures. To express the changing characteristics of temperature in different periods.
The meteorological department conducts observations every 6 hours at 02:00, 08:00, 14:00, and 20:00 (Beijing time) or at 02:00, 05:00, 08:00, 11:00, 14:00, and 17:00 Temperature observations will be carried out every 3 hours at 20:00 and 23:00. For special needs (such as aviation), meteorological observations are even conducted at intervals of one hour or half an hour.