...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Tellus, Series B. Chemical and Physical Meteorology >Exploring CO pollution episodes observed at Rishiri Island by chemical weather simulations and AIRS satellite measurements: long-range transport of burning plumes and implications for emissions inventories
【24h】

Exploring CO pollution episodes observed at Rishiri Island by chemical weather simulations and AIRS satellite measurements: long-range transport of burning plumes and implications for emissions inventories

机译：通过化学天气模拟和AIRS卫星测量研究在利ish岛上观测到的CO污染事件：燃烧烟羽的远距离运输及其对排放清单的影响

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The summer of 2003 was an active forest fire season in Siberia. Several events of elevated carbon monoxide (CO) were observed at Rishiri Island in northern Japan during an intensive field campaign in September 2003. A simulation with a global chemistry-transport model is able to reproduce the general features of the baseline levels and variability in the observed CO, and a source attribution for CO in the model suggests that the contribution from North Asia dominated, accounting for approximately 50% on average, with contributions of 7% from North America and 8% from Europe and 30% from oxidation of hydrocarbons. With consideration of recent emission estimates for East Asian fossil fuel and Siberian biomass burning sources, the model captures the timing and magnitude of the CO enhancements in two pollution episodes well (17 and 24 September). However, it significantly underestimates the amplitude during another episode (11-13 September), requiring additional CO emissions for this event. Daily satellite images from AIRS reveal CO plumes transported from western Siberia toward northern Japan. These results suggest that CO emissions from biomass burning in western Siberia in 2003 are likely underestimated in the inventory and further highlight large uncertainties in estimating trace gas emissions from boreal fires.
机译：2003年夏天是西伯利亚一个活跃的森林大火季节。在2003年9月的一次密集野战中，在日本北部的利ish岛上观察到了一些一氧化碳升高的事件。采用全球化学迁移模型进行的模拟能够重现基线水平的一般特征和大气中的变异性。观测到的二氧化碳，该模型中二氧化碳的来源归因表明，北亚的贡献占主导，平均约占50％，北美的贡献占7％，欧洲的贡献占8％，碳氢化合物的氧化占30％。考虑到最近对东亚化石燃料和西伯利亚生物质燃烧源的排放估算，该模型捕获了两个污染事件（9月17日和24日）中CO增强的时间和幅度。但是，它大大低估了另一事件（9月11日至13日）期间的振幅，为此事件需要额外的CO排放。来自AIRS的每日卫星图像揭示了从西伯利亚西部向日本北部运输的CO羽。这些结果表明，2003年西伯利亚西部生物质燃烧产生的一氧化碳排放量可能在清单中被低估了，并进一步突显了估算北方大火中微量气体排放的巨大不确定性。

著录项

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号