水面薄层热结构变化诱发机制的模拟研究──空气冷/暖平流效应  

SIMULATING STUDY ON THE INDUCING MECHANISM OF THE HEAT STRUCTURE VARIATION OF THE WATER SURFACE THIN LAYER ──EFFECT OF AIR COOL/WARM ADVECTION

作　　者：吴永森[1] 吴隆业[1] 纪育强[1] 马小兵[1] 张士魁[1] 

机构地区：[1]国家海洋局第一海洋研究所,青岛266003

出　　处：《海洋与湖沼》1999年第6期687-694,共8页Oceanologia Et Limnologia Sinica

基　　金：国家自然科学基金!49336070

摘　　要：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。The purpose of exploring the inducing mechanism of heat structure variation of the water surface thin layer and studying the effect of environmntal factors on the spacial variation of the heat structure, and on the quantitative relationship between them is tO provide reference concemed and proof of quantitatively cormchng for the retrieval algoritbm of sarellite sea surface temperature (SST).This paper presents the warer surface then layer strucare characterishcs measared simultheously from different layers when the artificial air cool / warm advection passed through the water surfase by using the HDG-highly sensiitve IR thermometer and routine measuring instrumnts in the water-tank of the low temperature lab in the Polar Researeh Inshtote of China and some other analytical results as well. The analyhcal data show tha the water skin temperature increases by 1.57℃ simultanously during the process of air warm advection through the warer surface when air temperata rose sharply by 21.5℃. The increment of the water skin temperature rose by 7.3%above air tomperature increments. However, the air temperature dropped by 18℃, and the warer skin temperabe by 1.7℃ in the process of passing cool air advection. The range of the water skin temperature decrements was 9.4% of the air temperature's. From calculation of the data the mean value of the coefficient of tempeta respond gained was 0.046 in the process of warm air advection, while - 0.022 in cool advection. The result was tha the response ration of increment/decremeot of water temperature to air temperature was found to be a function of the intensting time and the depth of water. And the ration would be zero at certain depth and time.

关 键 词：水面薄层 热结构 诱发机制 模拟研究 平流效应 

分 类 号：P733.4[天文地球—物理海洋学] P732.1[天文地球—海洋科学]