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利用HDG-高灵敏度红外测温仪和常规测试仪器在低温实验室的水槽中,对气温可控条件下模拟形成空气冷/暖平流流经水面过程中的静态水面薄层热结构进行了分层同步测量。数据分析表明,在空气暖平流过程中,气温骤增21.5℃,水面皮温几乎同步增加达1.57℃,温度响应系数为+0.073。这种温度响应系数在升温过程中,其平均值为0.046;而在冷平流(降温)过程中,则为-0.022,个别情况下,皮温降低幅度是气温降幅的9.4%。水温对气温的响应率是作用时间和水深的函数,且随水深递减,水温值对气温的增减、响应亦随深度加深而降低,在一定深度和时间,这种影响为零。
Using HDG-high sensitivity infrared thermometer and conventional test equipment in the low-temperature laboratory of the tank, under the controllable temperature conditions to form air cold / warm advection flows through the surface of the water surface layer of the thin layer of static water layered Simultaneous measurement. The data analysis shows that during the warm air advection, the temperature has risen by 21.5 ℃, the skin temperature of the water surface increases almost simultaneously by 1.57 ℃, and the temperature response coefficient is +0.073. This temperature response coefficient during the warming process, the average value of 0.046; in the cold advection (cooling) process, then -0.022, in some cases, the skin temperature decrease is the temperature drop of 9.4 %. The response rate of water temperature to air temperature is a function of time and water depth, and decreases with water depth. The response of water temperature to air temperature increases and decreases, and the response decreases with depth deepening. At a certain depth and time, this effect is zero.