Parameterization of the Aerosol Indirect Climatic Effect: Observational and Modeling Approach

在气溶胶化学、云微物理、辐射传输和气候模拟方面具有专门知识的实验者和模型师最近发起了一个联合项目(气溶胶气候效应的参数化)，以解决气溶胶与云的相互作用问题，称为气溶胶间接效应。PI建议将ACE-2现场活动数据与NASA GISS SCM模拟的云特性和辐射通量以及其他模式模拟的云特性和辐射通量进行比较。其目标是严格评估这些模型，并开发和测试在气候模型中表示气溶胶-云-辐射相互作用的更现实的方案。这项工作很重要，因为它将有助于缩小人为气溶胶间接影响模式模拟的大范围不确定性，从而有助于更可靠地预测全球和区域气候变化。

A joint project (Parameterization of the Aerosol Climatic Effect, PACE) between experimentalists and modelers who have expertise in aerosol chemistry, cloud microphysics, radiative transfer and climate modeling has recently been initiated to address the issue of aerosol interaction with clouds, referred to the aerosol indirect effect. The PI proposes to compare ACE-2 field campaign data with cloud properties and radiative fluxes simulated by the NASA GISS SCM along with that simulated by other models. The objectives are to rigorously assess the models and develop and test more realistic schemes for representing aerosol-cloud-radiation interactions in climate models. The work is important because it will contribute to narrowing the large range of uncertainty in model simulations of the indirect effects of anthropogenic aerosols, thereby facilitating more reliable predictions of global and regional climatic change.