Convectively Induced Stabilizations and Subsequent Recovery with Supercell Thunderstorms during the Mesoscale Predictability Experiment (MPEX)
Convectively Induced Stabilizations and Subsequent Recovery with Supercell Thunderstorms during the Mesoscale Predictability Experiment (MPEX)
复制标题
中尺度可预测性实验 (MPEX) 期间超级单体雷暴的对流诱导稳定和后续恢复
DOI：
10.1175/mwr-d-16-0266.1
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发表时间：
2017
影响因子：
3.2
通讯作者：
Joseph M. Woznicki
中科院分区：
文献类型：
--
作者：
R. Trapp;Joseph M. Woznicki
摘要：众所周知，中纬度深度对流风暴固有的绝热和非绝热过程可以改变大气温度、湿度和风，特别是在相当于罗斯比变形半径的水平尺度内。由于独特的超级单体动力学和相关的超级单体强度和寿命，由超级单体雷暴引起的这种变化或“反馈”是中尺度可预测性实验（MPEX）的一个特别关注的焦点。在2013年5月15日至6月15日在美国大平原地区进行的MPEX现场阶段，在超级单体直接尾迹中收集的无线电探空观测结果显示，在定性和定量上，温度递减率与边界层以上的对流减减率相似。互补理想模式模拟结果表明，除了地表冷池所占区域外，超级单体在移动风暴后的残余效应很小，且在移动过程中，超级单体的残余效应较小。
AbstractThe adiabatic and diabatic processes inherent to midlatitude deep convective storms are well known to modify the atmospheric temperature, moisture, and winds especially within horizontal scales equivalent to a Rossby radius of deformation. Such modifications, or “feedbacks,” induced by supercell thunderstorms were a particular focus of the Mesoscale Predictability Experiment (MPEX), owing to the unique supercell dynamics and associated supercell intensity and longevity. During the MPEX field phase, which was conducted 15 May–15 June 2013 within the Great Plains region of the United States, radiosonde observations collected in immediate supercell wakes exhibited temperature lapse rates that were qualitatively and quantitatively similar to preconvective lapse rates above the boundary layer.Complementary idealized model simulations were used to confirm that there was little residual effect of the supercell in the wake of the moving storm except within the area occupied by the surface cold pool, and w...