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首页> 外文期刊>Journal of Geophysical Research. Biogeosciences >Simulations of water vapor in the lower stratosphere and upper troposphere
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Simulations of water vapor in the lower stratosphere and upper troposphere

机译：平流层下部和对流层上部水蒸气的模拟

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A three-dimensional Chemical Tracer Model is used to simulate the distribution of water vapor in the upper troposphere (UT) and lower stratosphere (LS). The simulations include only the large scale advection of water vapor and the restriction that the sir be at or below saturation at all times. This simulation is used to help distinguish among those processes that control water vapor in the UT/LS. The exchange of water vapor across the tropopause is analyzed in detail. The simulation qualitatively reproduces the water vapor distribution given by satellite and radiosonde observations on both sides of the tropopause, confirming the importance of the global temperature distribution and advection in controlling the water vapor distribution. Quantitative differences with observations of water vapor are ascribed to input temperature biases. Water vapor enters the stratosphere at all longitudes in the tropics. Details of subgrid-scale dynamic and convective processes are not necessary to explain the entry of water vapor into the stratosphere, but these are found to be important for controlling the water vapor distribution in the upper troposphere. [References: 60]
机译：使用三维化学示踪剂模型来模拟水蒸气在对流层上层（UT）和平流层下层（LS）中的分布。模拟仅包括大规模的水蒸气平流，以及先生始终处于饱和状态或低于饱和状态的限制。该模拟用于帮助区分控制UT / LS中水蒸气的那些过程。详细分析了对流层顶上水蒸气的交换。该模拟定性地再现了对流层顶两侧的卫星和无线电探空仪观测所给出的水蒸气分布，证实了全球温度分布和对流在控制水蒸气分布中的重要性。水蒸气观测值的定量差异归因于输入温度偏差。水蒸气在热带的所有经度处都进入平流层。亚网格尺度的动态和对流过程的细节对于解释水蒸气进入平流层是没有必要的，但是发现这些对于控制高层对流层中的水蒸气分布很重要。 [参考：60]

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