A new analysis of wind on chloride deposition for long-term aerosol chloride deposition monitoring with weekly sampling frequency
A new analysis of wind on chloride deposition for long-term aerosol chloride deposition monitoring with weekly sampling frequency
复制标题
风对氯化物沉降的新分析，用于每周采样频率的长期气溶胶氯化物沉降监测
DOI：
10.1016/j.atmosenv.2018.10.033
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Duy Thao Nguyen
中科院分区：
文献类型：
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作者：
Ngoc DucPham;Yukihisa Kuriyama;Naoya Kasai;Shinji Okazaki;Katsuyuki Suzuki;Duy Thao Nguyen
本研究采用湿烛法，每周采样一次，对越南岘港市的 5 座桥梁进行了长期氯化物沉降监测。监测记录显示，在台风、低气压等不利天气事件下，氯化物沉降会迅速发生变化。在此长期监测之前，每周采样监测在横滨市进行了短期测试。本次短期试验表明，同一监测周期内，每周采样频率采集的氯化物总量与每月采样频率采集的氯化物总量基本相当，即适合以每周采样频率进行气溶胶氯化物沉降监测。此外，本研究还提出了一种利用有效风力的风对氯沉积影响的新分析方法，并将其应用于长期监测数据和气象数据。这种新的分析成功地构建了包括风速和风向在内的风参数与氯化物沉降的关系函数，与传统的分析方法相比，具有更好的方差。
This study conducted a long-term chloride deposition monitoring at 5 bridges in Da Nang city, Vietnam, by wet candle method with weekly sampling frequency. The monitored records showed prompt changes of chloride deposition in unfavorable weather events such as typhoon, depression. Prior to this long-term monitoring, weekly sampling monitoring was tested by short-term test in Yokohama city. This short-term test showed that the total chloride amount collected by weekly sampling frequency is almost equal to that collected by monthly sampling frequency in a same monitoring period, i.e. it is applicable to conduct aerosol chloride deposition monitoring with weekly sampling frequency. Besides, a new effect analysis of wind on chloride deposition using effective wind power was proposed and applied for long-term monitored data and meteorological data in this study. This new analysis succeeded in constructing the relation function of wind parameters including wind speed and wind direction with chloride deposition with better variance compared to conventional analysis method.