High-Resolution Radiosonde Data, Gravity Waves, Turbulence, and the Extratropical Tropopause

该奖项为研究人员为美国获取高分辨率无线电探空仪数据的努力提供持续资金，用于大气湍流，重力波和对流层顶的研究。 虽然大多数公开的美国无线电探空仪数据是在间隔很大的标准气压水平和少数“重要水平”下提供的，但原始数据传统上每6秒存档一次，这意味着垂直分辨率约为30米。 美国国家气象局现在以1秒的间隔存档原始数据，因此最近的数据以大约5米的垂直分辨率存档。 该项目将利用高分辨率数据在两个领域进行研究：边界层以上对流层和平流层下部的湍流分层研究，以及重力波破碎在建立湍流层中的作用;以及对形成和维持对流层顶的物理过程的研究。这项研究通过提供参数的估计，对科学界产生了更广泛的影响。常用于天气和气候模式中重力波和湍流的参数化方案。 此外，通过研究人员的网站向科学界提供高分辨率数据，研究人员将组织一次研讨会，帮助其他研究人员理解和使用这些数据。 该项目还支持一名研究生和一名博士后，从而为该领域的下一代科学家提供支持。

This award provides continued funding for the researcher's effort to acquire high-resolution radiosonde data for the United States for use in research on atmospheric turbulence, gravity waves, and the tropopause. While most publicly available US radiosonde data is provided at widely spaced standard pressure levels and a few "significant levels", the raw data has traditionally been archived every 6 seconds, implying a vertical resolution of about 30m. The US National Weather Service is now archiving raw data at one second intervals, so recent data is archived at roughly 5m vertical resolution. This project will use the high-resolution data to conduct research in two areas: studies of turbulent layering in the troposphere above the boundary layer and in the lower stratosphere, and the role of gravity wave breaking in establishing the turbulent layers; and studies of the physical processes that form and maintain the extratropical tropopause.The research has broader impacts for the scientific community by providing estimates for the parameters commonly used in parameterization schemes for gravity waves and turbulence in weather and climate models. In addition, the high-resolution data is made available to the scientifc community through the researcher's website, and the researcher will organize a workshop to help other researchers understand and use the data. The project also supports a graduate student and a postdoc, thereby providing for the next generation of scientists in the field.