Generalized Aerosol/Chemistry Interface (GIANT): A Community Effort to Advance Collaborative Science across Weather and Climate Models
Generalized Aerosol/Chemistry Interface (GIANT): A Community Effort to Advance Collaborative Science across Weather and Climate Models
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广义气溶胶/化学接口（GIANT）：社区努力推进天气和气候模型的协作科学
DOI：
10.1175/bams-d-23-0013.1
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发表时间：
2023
影响因子：
8
通讯作者：
Ma, Po-Lun
中科院分区：
文献类型：
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作者：
Hodzic, Alma;Mahowald, Natalie;Dawson, Matthew;Johnson, Jeffrey;Bernardet, Ligia;Bosler, Peter A.;Fast, Jerome D.;Fierce, Laura;Liu, Xiaohong;Ma, Po-Lun
大气气溶胶和化学模块是地球系统模型(ESM)中的关键元素，因为它们预测空气污染物的浓度和性质，可能会影响人类健康、天气和气候。目前气候预测的不确定性在一定程度上是由于气溶胶直接和间接强迫的表述不准确。在ESMS和其他大气模型中使用的气溶胶/化学参数化跨越了很大的结构和参数不确定性，这些不确定性很难独立于其宿主模型进行评估。此外，迫切需要在气溶胶/化学模块和主机模式之间建立一个标准化的接口，以便于将气溶胶/化学参数从一个模式移植到另一个模式，从而不仅可以比较同一模式框架内的不同参数，而且还可以量化不同模式框架对气溶胶/化学预测的影响。为了满足这一需求，我们发起了一项新的社区努力，以协调构建跨天气和气候模式使用的通用气溶胶/化学界面(GIGNAL)。我们的目标是组织一系列社区研讨会和黑客松，以设计和建造巨人，它将作为一系列气溶胶/化学模块与大气宿主模型的物理和动力学组件之间的接口。巨人公司将利用美国建模中心正在进行的专注于建造下一代ESM的努力，以及国际AeroCom计划来实施这种通用的气溶胶/化学界面。GANG将为科学家和学生创造变革性的机会，进行创新研究，以更好地表征气溶胶/化学模块中的结构和参数不确定性，并开发一套通用的气溶胶/化学参数。
Atmospheric aerosol and chemistry modules are key elements in Earth system models (ESMs), as they predict air pollutant concentrations and properties that can impact human health, weather, and climate. The current uncertainty in climate projections is partly due to the inaccurate representation of aerosol direct and indirect forcing. Aerosol/chemistry parameterizations used within ESMs and other atmospheric models span large structural and parameter uncertainties that are difficult to assess independently of their host models. Moreover, there is a strong need for a standardized interface between aerosol/chemistry modules and the host model to facilitate portability of aerosol/chemistry parameterizations from one model to another, allowing not only a comparison between different parameterizations within the same modeling framework, but also quantifying the impact of different model frameworks on aerosol/chemistry predictions. To address this need, we have initiated a new community effort to coordinate the construction of a Generalized Aerosol/Chemistry Interface (GIANT) for use across weather and climate models. We aim to organize a series of community workshops and hackathons to design and build GIANT, which will serve as the interface between a range of aerosol/chemistry modules and the physics and dynamics components of atmospheric host models. GIANT will leverage ongoing efforts at the U.S. modeling centers focused on building next-generation ESMs and the international AeroCom initiative to implement this common aerosol/chemistry interface. GIANT will create transformative opportunities for scientists and students to conduct innovative research to better characterize structural and parametric uncertainties in aerosol/chemistry modules, and to develop a common set of aerosol/chemistry parameterizations.