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| A THREE-DIMENSIONAL NUMERICAL STUDY ON DENSE FOG OVER MOUNTAINOUS AREAS | |
| 作者姓名： | 史月琴 邓雪娇 胡志晋 吴兑 |
| 作者单位： | Department of Atmospheric Sciences School of Physics Peking University，Chinese Academy of Meteorological Sciences Beijing 100081 China，Institute of Tropical and Marine Meteorology Guangzhou CMA，Chinese Academy of Meteorological Sciences，Institute of Tropical and Marine Meteorology Guangzhou CMA，Beijing 100871 China，Guangzhou 510080 China，Beijing 100081 China，Guangzhou 510080 China |
| 基金项目： | 国家自然科学基金;广东省科技厅科技计划 |
| 摘 要： | Using the non-hydrostatic meso-scale model MM5v3, dense fog that occurred from March 7 to March 8, 2001 over the Mts. Nanling area was studied. With integrated field experiments and observations, the occurrence, development and lift mechanism of fog were analyzed. The results indicate that before the coming of stratiform clouds, southerly warm and wet air ascended along mountainside and cooling condensation formed mountain fog. Then fog was formed by the stratiform on cloud-contacting mountaintop. A front inversion layer accelerated the development and extended the duration of the lower cloud and fog. The intensity, occurrence time, mass content and the variation of temperature and relative humidity of the fog agreed with those of the observation. It showed that the meso-scale model has the potential to forecast mountain fog. |
| 关 键 词： | 数字分析 山地 雾 观测分析 |
A THREE-DIMENSIONAL NUMERICAL STUDY ON DENSE FOG OVER MOUNTAINOUS AREAS |
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| SHI Yue-qin,DENG Xue-Jiao,HU Zhi-Jin,WU Dui.A THREE-DIMENSIONAL NUMERICAL STUDY ON DENSE FOG OVER MOUNTAINOUS AREAS[J].Journal of Tropical Meteorology,2007,13(1):17-20. | |
| Authors: | SHI Yue-qin DENG Xue-Jiao HU Zhi-Jin WU Dui |
| Institution: | 1. Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871 China;Chinese Academy of Meteorological Sciences, Beij ing 100081 China 2. Institute of Tropical and Marine Meteorology, Guangzhou, CMA, Guangzhou 510080 China 3. Chinese Academy of Meteorological Sciences, Beij ing 100081 China |
| Abstract: | Using the non-hydrostatic meso-scale model MM5v3, dense fog that occurred from March 7 to March 8, 2001 over the Mts. Nanling area was studied. With integrated field experiments and observations, the occurrence, development and lift mechanism of fog were analyzed. The results indicate that before the coming of stratiform clouds, southerly warm and wet air ascended along mountainside and cooling condensation formed mountain fog. Then fog was formed by the stratiform on cloud-contacting mountaintop. A front inversion layer accelerated the development and extended the duration of the lower cloud and fog. The intensity, occurrence time, mass content and the variation of temperature and relative humidity of the fog agreed with those of the observation. It showed that the meso-scale model has the potential to forecast mountain fog. |
| Keywords: | fog mountain area numerical study observation data |
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