Surface dimming by the 2013 Rim Fire simulated by a sectional aerosol model
Surface dimming by the 2013 Rim Fire simulated by a sectional aerosol model
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通过截面气溶胶模型模拟 2013 Rim Fire 的表面调光
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
J. Reid
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文献类型：
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作者：
P. Yu;O. B. Toon;C. Bardeen;A. Bucholtz;K. Rosenlof;P. Saide;P. Saide;Arlindo M. da Silva;L. Ziemba;K. Thornhill;J. Jimenez;P. Campuzano‐Jost;J. Schwarz;J. Schwarz;A. Perring;A. Perring;K. Froyd;K. Froyd;Nicholas L. Wagner;Nicholas L. Wagner;M. Mills;J. Reid
2013年的边缘火灾是加州历史上第三大火灾，通过气候模型和尺寸分辨气溶胶模型进行了模拟。模拟的气溶胶质量、数量和粒度分布在从多个空中原位测量获得的数据的可变性范围内。模拟结果显示，环火烟雾可能会阻挡4-6%的太阳光能量到达地表，在当地时间13：00-15：00的中可见光区，每单位气溶胶光学厚度的调光效率约为120-150 W m−2。低估模拟烟雾单次散射散射在midvisible由0.04表明，该模型高估了由于黑碳的颗粒大小或吸收。这项研究表明，像2013年边缘火灾这样的特殊事件可以通过具有1°分辨率的气候模式进行模拟，尽管该分辨率仍然不足以解决源区域附近的烟雾峰值。
The Rim Fire of 2013, the third largest area burned by fire recorded in California history, is simulated by a climate model coupled with a size‐resolved aerosol model. Modeled aerosol mass, number, and particle size distribution are within variability of data obtained from multiple‐airborne in situ measurements. Simulations suggest that Rim Fire smoke may block 4–6% of sunlight energy reaching the surface, with a dimming efficiency around 120–150 W m−2 per unit aerosol optical depth in the midvisible at 13:00–15:00 local time. Underestimation of simulated smoke single scattering albedo at midvisible by 0.04 suggests that the model overestimates either the particle size or the absorption due to black carbon. This study shows that exceptional events like the 2013 Rim Fire can be simulated by a climate model with 1° resolution with overall good skill, although that resolution is still not sufficient to resolve the smoke peak near the source region.