EAGER: Impacts of Fundamental Understanding of Atmospheric Energetics and Non-local Eddies on Frontier Atmospheric Research

该项目得到了探索性研究早期概念资助（EAGER）计划的支持。该项目一般旨在研究大气科学前沿的两个突出的基本问题：1)理解大气能量学；2)了解非局部涡旋在跨大气运动尺度的能量和动量转移中的主导作用。研究策略将理论调查、观测分析和建模结合起来，以更好地为观测证实和数值模式证实的大气过程的理论方面提供信息。研究人员将为该项目追求两个具体目标。第一个目标是通过分析现有的野外观测，重点研究非流体静力能转移，来限制非绝热加热和冷却影响下的大气能量学。第二个目标是建立一个基于能量守恒定律和基于物理的表面条件的一维模型，用于捕获能量和动量转移中的非局部涡流。建议在不参数化湍流混合的情况下实现这一目标，并通过日循环在一系列大气不稳定性的边界层现场观测进行验证，研究非流体静力能传递对大气动力学和热力学的影响。潜在的更广泛的影响包括挑战科学正统，寻求更好地理解控制大气动力学和热力学的基本大气物理学。这对于解决一系列受非绝热加热和冷却强烈影响的大气现象至关重要，例如对流系统（飓风、热带循环、龙卷风形成）和稳定边界层，当非流体静力能转移可能很强时。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

This project is supported under the auspices of the EArly Concept Grant For Exploratory Research (EAGER) program. The project generally seeks to investigate two outstanding fundamental issues at the frontier of atmospheric science: 1) understanding atmospheric energetics; and 2) understanding the dominant role of non-local eddies in energy and momentum transfers across scales of atmospheric motions. The research strategy combines theoretical investigation, observational analyses, and modeling in an effort to better inform theoretical aspects of atmospheric processes that are validated by observations and confirmed by numerical models.The researcher will pursue two specific objectives for the project. The first objective aims to constrain atmospheric energetics under the influence of diabatic heating and cooling by analyzing existing field observations with a focus on non-hydrostatic energy transfer. The second objective seeks to develop a one-dimensional model based on energy conservation laws and physically-based surface conditions for capturing non-local eddies in energy and momentum transfers. It is suggested to achieve this objective without parameterizing turbulent mixing and investigating impacts of non-hydrostatic energy transfer on atmospheric dynamics and thermodynamics with validation using boundary-layer field observations over a range of atmospheric instabilities through the diurnal cycle.The potential Broader Impacts include challenging scientific orthodoxy and seeking to better understand fundamental atmospheric physics that governs atmospheric dynamics and thermodynamics. This is critical to addressing a range of atmospheric phenomena strongly influenced by diabatic heating and cooling such as convective systems (hurricanes, tropical cycles, tornado genesis) and stable boundary layers when non-hydrostatic energy transfer is potentially strong.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.