Long-range transport of ozone from the Los Angeles Basin: A case study

被引：67

作者：

Langford, A. O. ^{[1
]}

Senff, C. J. ^{[1
]}

Alvarez, R. J., II ^{[1
]}

Banta, R. M. ^{[1
]}

Hardesty, R. M. ^{[1
]}

机构：

[1] NOAA, Earth Syst Res Lab, Boulder, CO 80305 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2010年 / 37卷

关键词：

AIR POLLUTANT TRANSPORT; 3-DIMENSIONAL SIMULATIONS; SOUTHERN CALIFORNIA; COASTAL ENVIRONMENT; SEA-BREEZE; SMOG; LAYERS;

D O I：

10.1029/2010GL042507

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Airborne lidar measurements of ozone above the Los Angeles Basin on 17 July 2009 show orographic lifting of ozone from the surface to the free troposphere by the San Gabriel Mountains. Mixing ratios in excess of 100 parts per-billion-by-volume (ppbv) were measured similar to 4 km above mean sea level (ASL). These observations are in excellent agreement with published model studies, confirming that topographic venting by the so called "mountain chimney effect" is a potentially important pathway for removal of pollutants from the Los Angeles Basin. The lofting of ozone and other pollutants into the free troposphere also greatly increases the potential for long-range transport from the Basin, and trajectory calculations suggest that some of this ozone may have been transported similar to 1000 km to eastern Utah and western Colorado. Citation: Langford, A.O.,C. J. Senff, R. J. Alvarez II, R. M. Banta, and R. M. Hardesty (2010), Long-range transport of ozone from the Los Angeles Basin: A case study, Geophys. Res. Lett., 37, L06807, doi: 10.1029/2010GL042507.

引用

页数：5

共 50 条

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