Global Historical (1850-2000) and Future (2000-2100) Aerosol Concentrations

This data set provides global aerosol concentration data, both historical (1850-2009) and future based on Representative Concentration Pathways (RCPs) (2000-2100) for use in the Coupled Model Intercomparison Project, Phase 5 (CMIP5). Aerosol concentration data are provided for sulfate (SO4), ammonium nitrate (NH4NO3), hydrophobic black carbon (CB1), hydrophilic black carbon (CB2), hydrophobic organic carbon (CB1), hydrophilic organic carbon (CB2), secondary organic aerosols (SOA), dust (DST01-04, small to large sizes) and sea-salt SSLT01-04. All files are monthly 10-year averages centered around the middle of each decade (1850-2000). This simulation was performed using CAM3.5 with a bulk aerosol model driven by CCSM3 sea-surface temperatures and the 1850-2000 IPCC emissions. Emissions beyond 2000 are kept at their 2000 levels. In addition, temperature (T) and surface pressure (PS) is provided to enable unit conversion (all aerosol are in kg/kg, dry mass).

本数据集提供全球气溶胶浓度数据，涵盖历史时段（1850-2009年）以及基于典型浓度路径（Representative Concentration Pathways，RCPs）的未来时段（2000-2100年），可用于耦合模式比较计划第五阶段（Coupled Model Intercomparison Project, Phase 5，CMIP5）相关研究。数据集包含的气溶胶组分包括硫酸盐（SO₄）、硝酸铵（NH₄NO₃）、疏水性黑碳（CB1）、亲水性黑碳（CB2）、疏水性有机碳（CB1）、亲水性有机碳（CB2）、二次有机气溶胶（SOA）、沙尘（DST01-04，对应从小到大的粒径分级）以及海盐气溶胶（SSLT01-04）。所有文件均为以每个十年中期为中心的十年逐月平均数据，时段覆盖1850-2000年。本模拟采用CAM3.5模式结合整体气溶胶模块完成，驱动场为CCSM3海表温度及1850-2000年IPCC排放清单，2000年之后的排放维持2000年水平不变。此外，数据集还提供温度（T）与地面气压（PS）数据，用于辅助单位转换——所有气溶胶组分的单位均为kg/kg（以干质量计）。