Workshop on Future Storm-Resolving Configurations of Community Earth System Model (CESM); Fort Collins, Colorado; Two days in April 2023

该奖项支持关于社区地球系统模型（CESM）的全球风暴解决配置主题的研讨会。 CESM 包含地球气候系统的完整表示，包括大气、海洋、陆地表面、海冰和冰盖的组件模型。 CESM 等地球系统模型在网格上模拟风、温度、湿度和其他大气变量，其中网格间距太粗（通常至少 15 公里），无法模拟对流，即雷暴中看到的翻转大气运动。 虽然模拟全范围的对流运动非常困难，但网格间距为几公里（例如 3 公里）的模型能够模拟中尺度对流系统（MCS）的演化，即发生在美国中部和世界其他地区的大型雷暴系统。 因此，人们有兴趣开发具有必要的高分辨率和增强的动力学和物理特性的CESM配置，以实现MCS和其他形式的有组织对流的模拟。 该研讨会汇集了对此类配置的开发和使用感兴趣的模型开发人员和用户。研讨会的更广泛影响来自于模型的可取性，这些模型能够更好地代表对人类活动产生重大影响的天气和气候过程。 例如，美国的大部分极端降水都来自 MCS，它们也是冰雹和龙卷风爆发的原因。 更具体地说，研讨会使 CESM 的广大用户和开发人员社区受益，CESM 是由全球气候研究界开发并为全球气候研究界开发的唯一地球系统。该奖项的资金将用于支持参加会议的学生和早期职业科学家的旅费。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力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 award supports a workshop on the topic of global storm resolving configurations of the Community Earth System Model (CESM). CESM includes a full representation of the earth's climate system, including component models for the atmosphere, ocean, land surface, sea ice, and ice sheets. Earth system models like CESM simulate wind, temperature, humidity, and other atmospheric variables on grids in which the grid spacing is too coarse (generally at least 15km) to simulate convection, meaning the overturning atmospheric motions seen in thunderstorms. While it is very difficult to simulate the full range of convective motions, models with grid spacings of a few kilometers (say 3km) are able to simulate the evolution of mesoscale convective systems (MCSs), the large thunderstorm systems that occur over the central US and in other parts of the world. Thus there is interest in developing configurations of CESM with the necessary high resolution and enhanced dynamics and physics required to enable simulation of MCSs and other forms of organized convection. The workshop brings together model developers and users who are interested in the development and use of such configurations.The broader impacts of the workshop come from the desirability of models which are better able to represent weather and climate processes that have substantial impacts on human activities. For instance much of the extreme precipitation in the US comes from MCSs, which are also responsible for hailstorms and tornado outbreaks. More specifically, the workshop benefits the broad community of users and developers of CESM, which is the only earth system developed by and for the global climate research community. Funds from this award will support travel expenses for students and early-career scientists attending the meeting.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.