项目名称: 人为气溶胶对中国区域降水影响的数值模拟研究
项目编号: No.41205109
项目类型: 青年科学基金项目
立项/批准年度: 2013
项目学科: 大气科学学科
项目作者: 李树
作者单位: 南京大学
项目金额: 25万元
中文摘要: 气溶胶可以改变辐射平衡和参与云微物理过程,从而增强或抑制降水,其对降水的影响存在很大不确定性。在全球气候变化的背景下,更好地理解人为气溶胶对中国区域降水的影响具有重要的科学价值和社会意义。本项目旨在建立包含了气溶胶-云-辐射-降水过程的区域气候-化学耦合模式系统,获取中国区域人为气溶胶与降水的时空演变特征,揭示人为气溶胶影响降水的过程和机理,估算不同影响机制的相对贡献,定量评估人为气溶胶对中国区域降水的影响程度,为认识人为气溶胶的区域气候效应和制定合理的适应对策提供科学依据。
中文关键词: 人为气溶胶;降水;中国;数值模拟;
英文摘要: Aerosols could change the radiation balance and participate in the cloud microphysical processes to enhance or suppress the precipitation. The effects of aerosols on precipitation is with large uncertainty. It is of important scientific value and social significance to have a better understanding of the effects of anthropogenic aerosols on precipitation in China under the background of global climate change. This project aims at constructing a regional climate-chemistry coupled modeling system containing the aerosol-cloud-radiation-precipitation processes, gaining the temporal and spatial distribution characteristics of anthropogenic aerosols and precipitation in China, revealing the process and mechanism for anthropogenic aerosols to influence precipitation, estimating relative contributions of different influence mechanisms, quantitatively evaluating the influence degree of anthropogenic aerosol on precipitation in China, and providing a scientific basis for understanding regional climatic effects of anthropogenic aerosols and making reasonable adaptive strategies.
英文关键词: anthropogenic aerosols;precipitation;China;numerical modeling;