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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >COMPARISON OF MOUNT PINATUBO AND EL CHICHON VOLCANIC EVENTS - LIDAR OBSERVATIONS AT 10.6 AND 0.69 MU-M
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COMPARISON OF MOUNT PINATUBO AND EL CHICHON VOLCANIC EVENTS - LIDAR OBSERVATIONS AT 10.6 AND 0.69 MU-M

机译：皮纳图博火山和埃尔奇川火山事件的比较-激光雷达在10.6和0.69 MU-M处的观测

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摘要

Analyses of a dense set of lidar observations of the volcanic clouds from Mount Pinatubo and El Chichon, primarily over Boulder, Colorado, and at a wavelength of 10.59 mu m, reveal notable similarities and differences. The importance of tropopause folding events for purging stratospheric debris into the troposphere is confirmed, as well as the role of gravitational settling to bring debris into the grasp of the folding mechanism. Seasonal influences appear more important than time after eruption in both poleward transport and in purging stratospheric material downward. We discuss the lengthening of the decay process for the Mount Pinatubo clouds by either an equatorial reservoir of debris or by eruptions of Mount Spurr. Simultaneous observations at 0.69 and 10.59 mu m help monitor aerosol effective radii versus altitude with good temporal and vertical resolution. [References: 30]
机译：对从皮纳图博火山和奇琴峰（主要在科罗拉多州博尔德上空），波长为10.59μm的火山云进行的密集激光雷达观测结果的分析显示出显着的异同。确认了对流层顶折叠事件对于将平流层碎片清除到对流层中的重要性，以及重力沉降作用将碎片带入对折机制的把握。在喷发和向下清除平流层物质方面，季节性影响似乎比喷发后的时间更重要。我们讨论了赤道储层碎片或斯珀尔山喷发对皮纳图博火山云衰减过程的延长。在0.69和10.59微米处同时观测有助于以良好的时间和垂直分辨率监视气溶胶有效半径与海拔的关系。 [参考：30]

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