SGER: A New Shortwave Radiation Parameterization for the Community Climate System Model (CCSM) Sea Ice Model

SGER：社区气候系统模型 (CCSM) 海冰模型的新短波辐射参数化

• 批准号: 0454311
• 负责人: Bonnie Light
• 金额: $ 3.19万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-12-15 至 2005-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0454311&HistoricalAwards=false
• 关键词: SGER; New; Shortwave; Radiation; Parameterization

This award supports the development of a new shortwave radiation parameterization for the Community Climate System Model (CCSM) sea ice component. The parameterization will be designed to increase the accuracy, consistency, and generality of the treatment of shortwave radiation and its interactions with snow and sea ice. The new parameterization will use a two-stream radiative transfer model that explicitly accounts for multiple scattering and employs physically realistic inherent optical properties for snow and sea ice. This approach is simple, efficient, and consistent with the treatment of shortwave radiation in the atmospheric component of CCSM. Broader Impacts: It is anticipated that this parameterization will result in improvements in CCSM sea ice model simulations and will increase climate scientists' ability to quantitatively assess the ice-albedo feedback mechanism in climate. Such improvements have the potential to substantially enhance the applicability of the CCSM model and the science related to climate and climate change. This research also has the potential to produce improved scientific information relevant to better-informed environmental policy decisions related to climate change.

该奖项支持为社区气候系统模式（CCSM）海冰部分开发新的短波辐射参数化。参数化的目的是提高短波辐射及其与雪和海冰相互作用的处理的准确性、一致性和普遍性。新的参数化将使用双流辐射传输模型，该模型明确考虑了多次散射，并采用了雪和海冰物理上真实的固有光学特性。这种方法简单、有效，与CCSM大气分量中短波辐射的处理方法一致。 更广泛的影响：预计这一参数化将改进CCSM海冰模式模拟，并将提高气候科学家定量评估气候中冰-冰-水反馈机制的能力。这些改进有可能大大提高CCSM模式的适用性以及与气候和气候变化有关的科学。这项研究也有可能产生更好的科学信息，以便在更知情的情况下作出与气候变化有关的环境政策决定。