论文标题
大气中的大气烟雾从大型大型火灾中注入
Upper Atmosphere Smoke Injection from Large Areal Fires
论文作者
论文摘要
大火会向对流层和下层平流层注入烟雾。详细的火灾模拟允许评估当地天气如何与这些火灾相互作用并影响烟雾。在这项研究中，我们在天气研究和预测模型（WRF-FIRE）（版本4.0.1）中采用了火灾模拟包，探索燃烧燃烧均匀燃料床的烟雾如何随着当地风，相对湿度，相对湿度和大气边界层面的稳定而变化，两种不同尺寸的面积大火。我们发现，通过提高倾斜的高度，水分的存在对结果的影响最大，而更快的风速度会降低延长的速度并降低注射高度。与中性分层条件相比，稳定的分层条件进一步抑制羽流的传播。
Large fires can inject smoke into the upper troposphere and lower stratosphere. Detailed fire simulations allow for assessment of how local weather interacts with these fires and affects smoke lofting. In this study, we employ the fire simulation package in the Weather Research and Forecasting model (WRF-Fire), Version 4.0.1, to explore how smoke lofting from a fire burning a homogeneous fuel bed changes with varying local winds, relative humidity, and atmospheric boundary-layer stability for two different-sized areal fires. We find that the presence of moisture has the greatest influence on the results by raising the altitude of lofting, while faster winds speeds dampen lofting and lower the injection height. Stably stratified conditions further inhibit plume propagation compared with neutrally stratified conditions.
