Mobile Observations of a Quasi-Frontal Transient Moisture Boundary in the Deep South
Mobile Observations of a Quasi-Frontal Transient Moisture Boundary in the Deep South
复制标题
南方腹地准锋面瞬态湿气边界的移动观测
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
L. White
中科院分区：
文献类型：
--
作者：
L. White
摘要描述了使用未改装的乘用车收集和分析沿样带的高分辨率(≤300m)温度和湿度数据的协议。对一个弱耗散冷锋的个例进行了研究，该冷锋与其上层对流层支撑分离，并与发展中的墨西哥湾回流相互作用。通过对从德克萨斯州延伸到阿拉巴马州的流动、地面天气和无线电探空资料的横截面分析，描述了温度和水汽梯度之间的变化关系。移动断面数据有助于描述锋面残余物附近的次天气尺度气团过渡区，以及气团内的其他变化。与以前对冷锋、干线和海岸锋的研究相比，有相似之处，也有不同之处。
AbstractA protocol for the collection and analysis of high-resolution (≤300 m) temperature and humidity data along a transect using an unmodified passenger vehicle is described. A case is investigated of a weak dissipating cold front that became disconnected from its upper-tropospheric support and interacted with a developing Gulf of Mexico return flow. The changing relationships between the thermal and moisture gradients are described through cross-section analyses of the mobile, surface synoptic, and radiosonde data, extending from Texas to Alabama. The mobile transect data facilitated description of subsynoptic-scale airmass transition zones in the vicinity of the frontal remnant, as well as other variations within air masses. Similarities and differences are noted relative to previous studies of cold fronts, drylines, and coastal fronts.