Fine scale composition gradients and mixing at the tropopause region (B01)

对流层顶区域的精细尺度成分梯度和混合 (B01)

• 批准号: 467084847
• 金额: --
• 依托单位: Institut für Physik der Atmosphäre
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/467084847?language=en
• 关键词: Fine; scale; composition; gradients; mixing

To study the effect of small scale mixing processes on the ExTL depth we will combine simultaneous fast (> 1Hz) airborne measurements of trace gases multicslae modelling using the MECO(n) system. This will partly be done by measuring species and aerosol properties redundantly on two different platforms also providing potential temperature on two levels, which will be used to analyse composition changes associated with potential temperature fluctuation to identify cross isentropic mixing. The observations will be accompanied by atmospheric chemistry modelling efforts from the km-scale to the region-al scale using the MECO(n) modelling system. This allows for a specific process analysis and the estimate of the impact and representation of individual processes (especially cirrus convection and CAT) to the UTLS gradients of humidity and ozone.

为了研究小规模混合过程对ExTL深度的影响，我们将使用MECO(n)系统结合同时快速（> 1Hz）机载微量气体多气体模型测量。这部分将通过在两个不同的平台上冗余地测量物种和气溶胶特性来完成，并提供两个水平上的潜在温度，这将用于分析与潜在温度波动相关的成分变化，以确定交叉等熵混合。这些观测将伴随着使用MECO(n)模拟系统进行从公里尺度到区域尺度的大气化学模拟工作。这样就可以进行具体的过程分析，并估计个别过程（特别是卷云对流和CAT）对UTLS湿度和臭氧梯度的影响和表示。