Continuation of Aircraft Studies of Horizontal Pressure Gradients and Ageostrophic Accelerations

大气压力的水平梯度是 是大气中几乎所有运动的根本原因。 非常 远距离微小压差的精确测量 几十公里的距离对于理解 负责极端天气事件的功能。 总的来说， 目前的操作仪器不能够 以足够的精度测量压力梯度， 调查或 在以往的研究中，校长 调查人员证明，高分辨率机载雷达 高度计加上高精度导航 定位，可以非常精确地计算压力 梯度力 这些测量被认为是重要的 在接下来的几年里， 十年 主要研究者将继续开发其 测量技术使用从他们早期收集的数据 实验 这项技术将被应用于辨别 与对流层上层有关的重要物理过程 这是一种与恶劣天气有关的喷气式飞机。

Horizontal gradients of atmospheric pressure are the fundamental cause of almost all motions in the atmosphere. Very precise measurements of small pressure differences over distances of tens of kilometers are important for understanding of forcing functions responsible for extreme weather events. In general, present day operational instrumentation are not capable of measuring pressure gradients with sufficient accuracy for some research purposes. In previous research, the Principal Investigators demonstrated that high resolution airborne radar altimeters coupled with highly accurate navigational positioning, allow extremely accurate calculations of pressure gradient forces. These measurements are considered important to attack some classes of meteorological problems over the next decade. The Principal Investigators will continue to develop their measurement technique using data collected from their earlier experiment. The technique will then be applied to discern important physical processes associated with upper tropospheric jets, which have been shown to be associated with severe weather.//