Long-Range Transport of Saharan Dust to East Asia Observed with Lidars
Long-Range Transport of Saharan Dust to East Asia Observed with Lidars
复制标题
DOI：
10.2151/sola.2005-032
复制
发表时间：
2005-01-01
期刊：
影响因子：
1.9
通讯作者：
Westphal, Douglas L.
中科院分区：
文献类型：
--
作者：
Park, Chan Bong;Sugimoto, Nobuo;Westphal, Douglas L.
2005年3月7日至9日，利用激光雷达在水原、高山、筑波等地观测了自由对流层的尘埃层。将观测到的沙尘分布与CFORS、NRL NAAPS和SPRINTARS等区域和全球沙尘输运模式的结果进行了比较。全球模式的结果定性地再现了沙尘层，而区域模式则没有。这表明沙尘层的来源位于包括塔克拉玛干沙漠和戈壁沙漠在内的区域模型的模拟区域之外。全球模式显示这些羽状物来自撒哈拉沙漠，两种模式都显示在观测期间塔克拉玛干和戈壁沙漠没有主要的沙尘排放。利用NOAA HYSPLIT进行的轨迹分析表明，沙尘起源于5-10天前的撒哈拉沙漠。
Dust layers in the free troposphere were observed with the lidars in Suwon, Gosan, and Tsukuba in March 7-9, 2005. The observed dust distributions were compared with the results of the regional and global dust transport models (CFORS, NRL NAAPS, and SPRINTARS). The results with the global models reproduced the dust layer qualitatively, but the regional model did not. This suggests the source of the dust layers is located outside of the modeled region of the regional model that includes Taklimakan Desert and Gobi Desert. The global models showed the plumes were from the Sahara Desert, and the both models showed there was no major dust emission in Taklimakan and Gobi Deserts during the observation period. The trajectory analysis using NOAA HYSPLIT showed that the dust originated in the Sahara Desert 5-10 days before.