| 摘要: |
| 于1991年8月—1992年5月对渤海两个测点水温和泥温进行观测,对泥温的铅直分布特征、季节变化以及与水温间的关系进行初步探讨。结果表明,泥温(指0—2m)的变化是由海水热含量的变化引起的,而后者又与太阳辐射有直接关系;泥温的变化幅度和位相与水温和水深有密切关系。泥温几乎无日变化,但有明显的季节变化,其变化幅度远小于水温,且随深度的增加迅速减小;与水温比较,泥温变化相位随深度增加依次滞后,至2m深处,秋季泥温最高,春季最低。 |
| 关键词: 泥温 铅直分布 滞后 |
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| VERTICAL DISTRIBUTION OF SOIL TEMPERATURE (AT SEA BED) AND RELATIONSHIP BETWEEN SOIL AND WATER TEMPERATURES IN THE CENTRAL BOHAI SEA |
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Liu Wentong,Song Shan
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1.Ocean University of Qingdao 266003;2.Bohai Oil Company, Tanggu 300450
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| Abstract: |
| Water and soil temperatures at two spots in Bohai Sea were measured by Ocean University of Qingdao and Bohai Oil Company from August 1991 to May 1992. and abundant data were obtained. Vertical distribution, seasonal change of soil temperature, and the relationship between the water temperature and soil temperature are preliminarily studied. The results indicate that soil temperature change is caused by heat content change of ht sea water the later is related to radiation from the sun directly, and the amplitude and phase of change of the soil temperature are related to the temperature and depth of water. The soil temperature almost does not change in the same day, but it does vary in different seasons obviously: the :amplitude of its variation is far less than that of water temperature, and it decreasts rapidly with increase in depth. Compared with water temperature, the phase of soil temperature change lags with depth increase until the 2m depth zone where maximum temperature of soil is registered in autumn and the minimum in spring. |
| Key words: Soil temperature, Vertical distribution, lag |
