| 周斌斌. 1987. 辐射雾的数值模拟[J]. 气象学报, 45(1):21-29, doi:10.11676/qxxb1987.003 |
| 辐射雾的数值模拟 |
| THE NUMERICAL MODELING OF RADIATION FOG |
| 投稿时间：1986-04-02 修订日期：1986-07-22 |
| DOI：10.11676/qxxb1987.003 |
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| 摘要点击次数: 3007 |
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| 中文摘要: |
| 本文通过数值模拟的方法,研究了辐射雾的形成和发展过程。模式较详细地考虑了湍流交换、长波辐射传输、重力沉降等过程。计算结果表明,辐射雾形成后会改变环境风、温场,反之,风、温场的改变又影响了辐射雾的发展。计算结果还表明,辐射雾最初是在离地面一定的高度上形成的,文中作了详细解释;辐射雾的发展是在湍流场和辐射场的相互作用下引起的。湍流作用是决定辐射雾形成、发展的重要因子,它一方面阻碍了辐射雾的形成,另一方面,它又能促进已形成的雾的发展。本文还研究了辐射雾形成前后的风、温变化以及长波辐射通量的变化。研究了含水量交换系数对模式的影响,结果表明,含水量交换系数的取值与动量交换系数是否相等,对模拟结果没有明显的影响。 |
| 英文摘要: |
| The formation and development of radiation fog through the one-dimensional numerical model are studied. The results are as follows: (1) Fog can change the ambient field, vice versa, the ambient field may influence the fog. (2) The model fog forms initially at the level apart from the surface. The explanation is given in the paper. (3) The turbulence delays the Fog formation but promotes the fog developing. (4) Whether the liquid water content exchange coefficient equals to momentum exchange coefficient or not, has no influence nn the numerical results. In addition, wind, temperature, exchange coefficient, net radiative flux,etc, before; and after the formation of radiation fog have been studied. |
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