Combination of Local Wind Systems under Light Gradient Wind Conditions and Its Contribution to the Long-Range Transport of Air Pollutants
Combination of Local Wind Systems under Light Gradient Wind Conditions and Its Contribution to the Long-Range Transport of Air Pollutants
复制标题
小梯度风条件下局地风系统组合及其对大气污染物远距离输送的贡献
DOI：
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发表时间：
1990
期刊：
影响因子：
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通讯作者：
S. Mitsumoto
中科院分区：
文献类型：
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作者：
H. Kurita;H. Ueda;S. Mitsumoto
摘要利用联合观测资料，研究了沿海地区大气污染物向内陆山区远距离输送的气象结构和输送机制。观测是在1983年7月26日至30日期间进行的，观测范围从东京湾周围的沿海地区到日本中部的山区。东京湾周围的空气在清晨被污染，直到中午才被光化学反应转化。然后，它被输送到内陆，首先是由延长的海风，然后由大规模的风系统，对热低产生的山区中心地区。在日本标准时间（JST）1600左右，污染的空气渗透到山区，日落后，它以重力流的形式沿沿着流下。污染空气的路径是在良好的协议与空气轨迹开始东京在100米的高度，从飞行员气球计算。
Abstract The meteorological structure and transport mechanism of long-range transport of air pollutants from the coastal region to the mountainous inland region were investigated using joint field observation data. The observations were conducted during 26–30 July 1983 over a wide area from the coastal region around Tokyo Bay to the mountainous region located in central Japan. Air, polluted around the Tokyo Bay area during the early morning remained there until noon, being transformed by photochemical reactions. It was then transported inland, at first by the extended sea breeze and thereafter by the large-scale wind system, toward the thermal low generated in the mountainous central region. At about 1600 Japan Standard Time (JST), polluted air penetrated into the mountainous region, and after sunset it drained down along the valley in the form of a gravity current. The path of the polluted air was in good agreement with the air trajectory started Tokyo at an altitude of 100 m, calculated from pilot-ballo...