Large-scale dust event in East Asia, as revealed by the Himawari-8 DUST RGB, lidar network observations, and field survey
Large-scale dust event in East Asia, as revealed by the Himawari-8 DUST RGB, lidar network observations, and field survey
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DOI：
10.1051/e3sconf/20199901004
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发表时间：
2019
影响因子：
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通讯作者：
K. Kai;Y. Minamoto;Kotaro Nakamura;Minrui Wang;K. Kawai;Kazuma Ohara;J. Noda;T. Maki;E. Davaanyam;N. Sugimoto
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文献类型：
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作者：
K. Kai;Y. Minamoto;Kotaro Nakamura;Minrui Wang;K. Kawai;Kazuma Ohara;J. Noda;T. Maki;E. Davaanyam;N. Sugimoto
2017年5月上旬，东亚地区发生了一次大规模的沙尘天气，日本各地都测量到了输送的沙尘。我们使用多个来源对整个沙尘事件进行了分析：当地云高计测量，戈壁沙漠（蒙古达兰扎德加德）光学粒子计数器的测量，从Himawari-8获得的沙尘RGB图像的研究，来自日本的激光雷达测量和气象数据。结果表明，蒙古国境内连续出现了三个热带外低压系统，并在戈壁沙漠产生了沙尘暴。值得注意的是，沙尘RGB图像显示了沙尘的发生和传输，并能够检测到两个沙尘爆发在中国北方的科尔沁桑迪和他们的传输到日本东部，这表明科尔沁桑迪是这次沙尘事件的源区之一。
A large-scale dust event occurred in East Asia during early May 2017, and transported dust was measured all over Japan. We performed an analysis of the entire dust event using multiple sources: a local ceilometer measurement, measurements from an optical particle counter in the Gobi Desert (Dalanzadgad, Mongolia), a study of Dust RGB imagery obtained from Himawari-8, lidar measurements from Japan, and meteorological data. Our results show that three extratropical low pressure systems occurred consecutively in Mongolia and generated dust storms in the Gobi Desert. Remarkably, the Dust RGB imagery shows both the occurrence and the transportation of the dust, and was able to detect two dust outbreaks in the Horqin Sandy Land of Northern China and their transportation to eastern Japan; this shows that the Horqin Sandy Land was one of the source regions of this dust event.