Method for measuring ground surface temperature
A technology of surface temperature and ground temperature meter, applied in thermometers, measuring devices, measuring heat, etc., can solve problems such as great influence of temperature readings
Inactive Publication Date: 2009-02-18
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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Problems solved by technology
Using this method increases the comparability of surface temperature and soil surface evaporation between stations, and overcomes the problem that the temperature readings are greatly affected by the different soil moisture content at each station
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[0015] A method for measuring the surface temperature of the present invention is to use a soil evaporative infiltration meter to measure the surface temperature. It is composed of well, measuring cylinder, water filter palm and gravel; a vent pipe (2) is installed on one side of the lysimeter container (1), and the other end of the vent pipe (2) is connected with the water-permeable cover (4); The other side of the container (1) is equipped with a water-adding pipe (3), and the other end of the water-adding pipe (3) is connected with the water-permeable cover (4); the bottom of the lysimeter container (1) is fixed with a water-permeable cover with several holes ( 4); one end of the overflow pipe (5) is connected upwards with the permeable cover (4) at a right angle, and its other end is connected downwards with the logging (6) at a right angle; a 10cm gravel layer (8) is laid at the bottom of the lysimeter container (1) ), the surface of the gravel (8) is paved with water fil...
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The invention relates to a method of measuring earth surface temperature; the method makes use of a soil evaporation permeameter to measure the earth surface temperature; the lip of soil evaporation permeameter is fixed horizontally, 7.5cm higher than the earth surface; a geothermal meter is arranged on the soil surface in the evaporation permeameter; water is timely added into the evaporation permeameter every day until the permeameter is overflowed; the soil surface daily evaporation amount is calculated by adding the difference between the adding amount and the discharging amount to the precipitation amount; then the geothermal meter is read according to the ground-based meteorological observation standard requirements so as to calculate the daily average temperature through the conventional calculation method. The application of the method increases the comparability between the inter-station earth surface temperature and the soil surface evaporation and overcomes the big impact on temperature reading caused by different soil moisture at various stations.
Description
technical field [0001] The invention relates to a method for measuring ground surface temperature by using a soil evaporation infiltration meter. Background technique [0002] Measuring the surface temperature (including the highest and lowest temperature) is a routine observation item of each weather station. The traditional observation method is to dig a trench on the flat ground, put half of the thermometer into the trench, half of the sensing part of the thermometer is buried in the soil, and the other half is exposed to the air. Because the soil moisture content of each station is different, it has a great influence on the temperature reading. Generally, dry soil heats up quickly and cools down quickly; wet soil heats up slowly and cools down slowly. Therefore, there is no comparability of surface temperature between stations. [0003] In order to increase the comparability of the surface temperature between stations, the present invention uses a soil evaporative infi...
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Inventor 王积强
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI