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首页> 外文期刊>Atmospheric chemistry and physics >Identifying convective transport of carbon monoxide by comparing remotely sensed observations from TES with cloud modeling simulations
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Identifying convective transport of carbon monoxide by comparing remotely sensed observations from TES with cloud modeling simulations

机译：通过将TES的遥感观测结果与云建模模拟进行比较，确定一氧化碳的对流传输

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Understanding the mechanisms that transport pollutants from the surface tothe free atmosphere is important for determining the atmosphere's chemicalcomposition. This study quantifies the vertical transport of troposphericcarbon monoxide (CO) by deep mesoscale convective systems and assesses theability of the satellite-borne Tropospheric Emission Spectrometer (TES) todetect the resulting enhanced CO in the upper atmosphere. A squall line thatis similar to one occurring during NASA's INTEX-B mission is simulated usinga typical environmental wind shear profile and the 2-D Goddard CumulusEnsemble model. The simulation provides post-convection CO profiles. Thestructure of the simulated squall line is examined, and its verticaltransport of CO is quantified. Then, TES' ability to resolve theconvectively modified CO distribution is documented using a "clear-sky"retrieval scheme. Results show that the simulated squall line transports thegreatest mass of CO in the upper levels, with a value of 96 t upward and 67 tdownward at 300 hPa. Results indicate that TES has sufficient sensitivityto resolve convectively lofted CO, as long as the retrieval scene iscloud-free. TES swaths located immediately downwind of squall lines have thegreatest chance of sensing convective transport because the impact of cloudson retrieval quality becomes less. A note of caution is to always analyzeTES-derived CO data (or data from any satellite sensor) together with theretrieval averaging kernels that describe the information contentof the retrieval.
机译：了解将污染物从表面传输到自由大气的机制对于确定大气的化学组成很重要。这项研究对深层中尺度对流系统对流层一氧化碳（CO）的垂直传输进行了定量，并评估了卫星对流层发射光谱仪（TES）探测高层大气中由此产生的增强CO的能力。使用典型的环境风切变曲线和二维Goddard CumulusEnsemble模型，模拟了类似于NASA INTEX-B任务期间发生的s线。该模拟提供了对流后的CO曲线。检查了模拟线的结构，并量化了其垂直传输的CO。然后，使用“晴空”检索方案记录了TES解决对流修改的CO分布的能力。结果表明，模拟线在300 hPa处将最大质量的CO输送到较高水平，向上的值为96 t ，向下的值为67 t 。结果表明，只要检索场景是无云的，TES具有足够的灵敏度来解决对流放样的CO。位于线下游的TES条带有最大的机会探测对流传输，因为云对取回质量的影响变小了。注意事项是始终将TES衍生的CO数据（或来自任何卫星传感器的数据）与描述取回信息内容的平均取平均值内核一起进行分析。

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