Aerosol monitoring with a lidar observation network in southern South America
Aerosol monitoring with a lidar observation network in southern South America
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南美洲南部利用激光雷达观测网络进行气溶胶监测
DOI：
10.1117/12.2324774
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Mingari Leonardo
中科院分区：
文献类型：
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作者：
Papandrea Sebastian;Jin Yoshitaka;Ciminari Hernan;Bali Juan Lucas;Salles Maria Alejandra;Barbero Albane;Ristori Pablo;Otero Lidia;Salvador Jacobo;Barja Boris;Nishizawa Tomoaki;Shimizu Atsushi;Sugimoto Nobuo;Mizuno Akira;Collini Estela;Mingari Leonardo
在南美洲南部，观察到了各种类型的气溶胶，包括来自亚马逊地区的生物质燃烧气溶胶、来自安第斯火山带的火山喷发的飞灰、来自巴塔哥尼亚沙漠的矿物尘埃以及来自城市的空气污染气溶胶。地区。为了持续监测这种气溶胶，我们在阿根廷和智利建立了一个激光雷达观测网络。在阿根廷安装了8台激光雷达，在智利的蓬塔阿雷纳斯安装了1台。在三个波长处测量反向散射信号：355、532和1064 nm。其中8台仪器正在测量355和532 nm处的消偏振比，以探测非球形气溶胶。此外，四台激光雷达配备了拉曼通道和两个高光谱分辨率通道，用于定量测量后向散射和消光系数。激光雷达操作、数据分析和产品发布在南美环境风险管理网络（SAVER-Net）系统中实施，该系统由日本、阿根廷和智利三国项目开发。利用激光雷达数据，可以为公众提供近真实的低空气溶胶类型和消光系数等灾害信息。此外，羽高度和定性火山灰的浓度进行了估计。有关火山灰的资料可有效地用于在火山爆发时通知飞机着陆和起飞。
In the southern South America, various types of aerosols have been observed including biomass burning aerosols from the Amazon region, flying ashes from the volcanic eruptions coming from the Andean Volcanic Belt, mineral dust from the Patagonian Desert, and air pollution aerosols from urban areas. To monitor such aerosols continuously, we developed a lidar observation network in Argentina and Chile. Eight lidars were installed in Argentina and one in Punta Arenas, Chile. Backscattering signals are measured at three wavelengths: 355, 532, and 1064 nm. Eight of those instruments are measuring depolarization ratio at 355 and 532 nm to detect non-spherical aerosols. In addition, four lidars are equipped Ramans channels and two high-spectral-resolution channels to measure backscattering and extinction coefficients quantitatively. Lidar operation, data analysis, and products release are implemented within the South American Environmental Risk Management Network (SAVER-Net) system, which was developed by a trinational project among Japan, Argentina, and Chile. Using lidar data, hazard information on the aerosol type and extinction coefficient at low altitude is provided for public in a near real time. In addition, plume height and qualitatively concentration for volcanic ashes are estimated. The information on volcanic ashes may be effectively used for advising aircraft landing and departing when volcanic eruptions occurs.