First Directly Retrieved Global Distribution of Tropospheric Column Ozone from GOME: Comparison with the GEOS-CHEM Model
First Directly Retrieved Global Distribution of Tropospheric Column Ozone from GOME: Comparison with the GEOS-CHEM Model
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DOI：
10.1029/2005jd006564
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发表时间：
2006-01
影响因子：
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通讯作者：
Xiong Liu;K. Chance;C. Sioris;T. Kurosu;R. Spurr;R. Martin;T. Fu;J. Logan;D. Jacob;P. Palmer;M. Newchurch;I. Megretskaia;R. Chatfield
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文献类型：
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作者：
Xiong Liu;K. Chance;C. Sioris;T. Kurosu;R. Spurr;R. Martin;T. Fu;J. Logan;D. Jacob;P. Palmer;M. Newchurch;I. Megretskaia;R. Chatfield
[1]我们提出了第一个直接检索的全球对流层柱臭氧分布的全球臭氧监测实验（GOME）的紫外线测量在1996年12月至1997年11月。检索清楚地显示信号，由于对流，生物质燃烧，平流层的影响，污染和运输。它们能够捕捉对流层臭氧柱的时空演变，以响应区域或短时间尺度的事件，如1997-1998年厄尔尼诺事件和10-20 DU的变化在几天内。对流层臭氧柱的全球分布在热带地区表现为著名的波1型，春季在南纬20°S-30°S，春季和夏季在北纬25°N-45°N，对流层臭氧柱呈近纬向增强带（36-48 DU），春季在北方某些高纬度地区对流层臭氧柱呈低值（33 DU）。化学输送模式的模拟证实了上述大多数结构，偏差小于±5 DU，大多数区域，特别是南半球的季节周期一致。然而，5-20 DU的显着的正偏差出现在一些北方热带和亚热带地区，如中东在夏季。GOME与空中客车在役飞机（MOZAIC）对流层臭氧柱月平均测量值的比较表明，GOME与MOZAIC对流层臭氧柱月平均测量值在1σ标准差和反演不确定度范围内具有良好的一致性。某些偏差可归因于对低层对流层臭氧的敏感性不足、不同的时空采样和对流层臭氧柱的时空变化。
[1] We present the first directly retrieved global distribution of tropospheric column ozone from Global Ozone Monitoring Experiment (GOME) ultraviolet measurements during December 1996 to November 1997. The retrievals clearly show signals due to convection, biomass burning, stratospheric influence, pollution, and transport. They are capable of capturing the spatiotemporal evolution of tropospheric column ozone in response to regional or short time-scale events such as the 1997–1998 El Nino event and a 10–20 DU change within a few days. The global distribution of tropospheric column ozone displays the well-known wave-1 pattern in the tropics, nearly zonal bands of enhanced tropospheric column ozone of 36–48 DU at 20°S–30°S during the austral spring and at 25°N–45°N during the boreal spring and summer, low tropospheric column ozone of 33 DU at some northern high-latitudes during the spring. Simulation from a chemical transport model corroborates most of the above structures, with small biases of <±5 DU and consistent seasonal cycles in most regions, especially in the southern hemisphere. However, significant positive biases of 5–20 DU occur in some northern tropical and subtropical regions such as the Middle East during summer. Comparison of GOME with monthly-averaged Measurement of Ozone and Water Vapor by Airbus in-service Aircraft (MOZAIC) tropospheric column ozone for these regions usually shows good consistency within 1σ standard deviations and retrieval uncertainties. Some biases can be accounted for by inadequate sensitivity to lower tropospheric ozone, the different spatiotemporal sampling and the spatiotemporal variations in tropospheric column ozone.