SGER: Improving Community Climate System Model (CCSM) Snow/Ice Radiative and Heating Processes and Asssessing the Importance of the Soot Albedo Effect

SGER：改进社区气候系统模型 (CCSM) 雪/冰辐射和加热过程并评估烟灰反照率效应的重要性

• 批准号: 0503148
• 负责人: Charles Zender
• 金额: $ 2.68万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-02-01 至 2006-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0503148&HistoricalAwards=false
• 关键词: SGER; Improving; Community; Climate; System

The goal of this research is to improve representation of snow albedo and heating in the Community Climate System Model (CCSM) and to understand climate impacts of snow and ice albedo perturbation via implantation of soot and other particulates. Specific objectives are as follows:- Improve the accuracy, realism, and flexibility of snow and ice reflectance and heating in CCSM so as to reduce model biases and expand the range of scientific questions CCSM may address. - Link the CCSM Atmospheric Model (CAM) aerosol deposition to surface albedo to examine the time-dependent direct and indirect radiative effects of soot, mineral dust, and volcanic aerosols in the cryosphere. - Quantify the extent to which more realistic snow albedo influences CCSM mid- and high- latitude winter temperature biases, spring melt phasing, and ice-albedo feedback.Broader Impacts: It is anticipated that this research will result in improvements in CCSM snow-ice-aerosol interactions and will increase climate scientists' ability to quantitatively assess the snow-ice-albedo feedback mechanism. Such improvements have the potential to substantially enhance the applicability of the CCSM model and the science related to climate and climate change.

这项研究的目的是改善社区气候系统模型（CCSM）中雪和加热的表示，并通过植入烟灰和其他颗粒物来了解雪和冰扰动的气候影响。 特定目标如下： - 提高雪和冰反射和加热的准确性，现实主义和灵活性，以减少模型偏见并扩大科学问题的范围CCSM可能会解决。 - 将CCSM大气模型（CAM）气溶胶沉积与表面反照率联系起来，以检查冰冻层中烟灰，矿物粉尘和火山气溶胶的时间依赖性直接和间接辐射效应。 - 量化更逼真的雪反照率在多大程度上影响CCSM中和高纬度的冬季温度偏见，弹簧熔体阶段和冰 - 阿尔贝托的反馈。公民的影响：可以预期，这项研究将导致CCSM雪冰的改善 - 大气溶胶相互作用，并将提高气候科学家定量评估雪冰 - 阿尔贝托的反馈机制的能力。这种改进有可能大大提高CCSM模型的适用性以及与气候和气候变化有关的科学。