Chapter 7 of the Working Group I Contribution to the IPCC Sixth Assessment Report - data for Figure 7.6 (v20220721)

Data for Figure 7.6 from Chapter 7 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6). Figure 7.6 shows the change in effective radiative forcing (ERF) from 1750 to 2019 by contributing forcing agents (carbon dioxide, other well-mixed greenhouse gases (WMGHGs), ozone, stratospheric water vapour, surface albedo, contrails and aviation-induced cirrus, aerosols, anthropogenic total, and solar). --------------------------------------------------- How to cite this dataset --------------------------------------------------- When citing this dataset, please include both the data citation below (under 'Citable as') and the following citation for the report component from which the figure originates: Forster, P., T. Storelvmo, K. Armour, W. Collins, J.-L. Dufresne, D. Frame, D.J. Lunt, T. Mauritsen, M.D. Palmer, M. Watanabe, M. Wild, and H. Zhang, 2021: The Earth’s Energy Budget, Climate Feedbacks, and Climate Sensitivity. In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S.L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M.I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T.K. Maycock, T. Waterfield, O. Yelekçi, R. Yu, and B. Zhou (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, pp. 923–1054, doi:10.1017/9781009157896.009. --------------------------------------------------- Figure subpanels --------------------------------------------------- The figure has 1 panel, with data provided for this panel. A link to the code to plot the figure archived on Zenodo is provided in the Related Documents section of this catalogue record. --------------------------------------------------- List of data provided --------------------------------------------------- This dataset contains: Change in effective radiative forcing (ERF) from 1750 to 2019 by the following contributing forcing agents: - Carbon dioxide - Other well-mixed greenhouse gases (WMGHGs) - Ozone - Stratospheric water vapour - Surface albedo - Contrails and aviation-induced cirrus - Aerosols - Anthropogenic total - Solar Solid bars represent best estimates, and very likely (5–95%) ranges are given by error bars. Non-CO2 WMGHGs are further broken down into contributions from methane (CH4), nitrous oxide (N2O) and halogenated compounds. Surface albedo is broken down into land-use changes and light-absorbing particles on snow and ice. Aerosols are broken down into contributions from aerosol–cloud interactions (ERFaci) and aerosol–radiation interactions (ERFari). For aerosols and solar, the 2019 single-year values are given (Table 7.8), which differ from the headline assessments in both cases. Volcanic forcing is not shown due to the episodic nature of volcanic eruptions. Further details on data sources and processing are available in the chapter data table (Table 7.SM.14) --------------------------------------------------- Data provided in relation to figure --------------------------------------------------- Data provided in relation to Figure 7.6: - Data file: AR6_ERF_1750-2019.csv - Data file: AR6_ERF_1750-2019_pc05.csv - Data file: AR6_ERF_1750-2019_pc95.csv ERFaci stands for Effective Radiative Forcing of aerosol-cloud interaction. ERFari stands for Effective Radiative Forcing of aerosol-radiation interaction. --------------------------------------------------- Notes on reproducing the figure from the provided data --------------------------------------------------- The data for the bars in this figure correspond to the 2019 data in final line of the csv files provided. Data and figures are produced by the Jupyter Notebooks that live inside the notebooks directory of the Chapter 7 GitHub repository, which is linked in the 'Related Documents' section. Within the processing chain, every notebook is prefixed by a number. To reproduce all results in the chapter, the notebooks should be run in numerical order. --------------------------------------------------- Sources of additional information --------------------------------------------------- The following weblinks are provided in the Related Documents section of this catalogue record: - Link to the figure on the IPCC AR6 website - Link to the report component containing the figure (Chapter 7) - Link to the Supplementary Material for Chapter 7, which contains details on the input data used in Table 7.SM.1 to 7.SM.7. - Link to the code for the figure, archived on Zenodo. - Link to the Chapter 7 GitHub repository - Link to the notebook for plotting figure

本数据集为政府间气候变化专门委员会（Intergovernmental Panel on Climate Change, IPCC）第六次评估报告（Sixth Assessment Report, AR6）第一工作组（Working Group I, WGI）第七章图7.6配套数据。图7.6展示了1750年至2019年各贡献强迫因子下的有效辐射强迫（Effective Radiative Forcing, ERF）变化，涉及二氧化碳、其他混合良好温室气体（Well-mixed Greenhouse Gases, WMGHGs）、臭氧、平流层水汽、地表反照率、凝结尾迹与航空诱导卷云、气溶胶、人为总强迫以及太阳强迫。

--------------------------------------------------- 数据集引用方式 ---------------------------------------------------
引用本数据集时，需同时包含下方的可引用标识（'Citable as'项下）以及本图所属报告章节的如下引用：Forster, P., T. Storelvmo, K. Armour, W. Collins, J.-L. Dufresne, D. Frame, D.J. Lunt, T. Mauritsen, M.D. Palmer, M. Watanabe, M. Wild, and H. Zhang, 2021: The Earth’s Energy Budget, Climate Feedbacks, and Climate Sensitivity. In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S.L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M.I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T.K. Maycock, T. Waterfield, O. Yelekçi, R. Yu, and B. Zhou (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, pp. 923–1054, doi:10.1017/9781009157896.009.

--------------------------------------------------- 图子面板说明 ---------------------------------------------------
本图仅包含1个绘图面板，已为该面板提供对应数据。本目录记录的「相关文档」板块中提供了存档于Zenodo的绘图代码链接。

--------------------------------------------------- 提供的数据清单 ---------------------------------------------------
本数据集包含1750年至2019年各贡献强迫因子下的有效辐射强迫（ERF）变化数据，涉及的强迫因子如下：
- 二氧化碳
- 其他混合良好温室气体（WMGHGs）
- 臭氧
- 平流层水汽
- 地表反照率
- 凝结尾迹与航空诱导卷云
- 气溶胶
- 人为总强迫
- 太阳强迫

图中实心柱代表最优估计值，误差棒则表示极大概率（5%~95%）的取值范围。非二氧化碳混合良好温室气体可进一步拆解为甲烷（methane, CH₄）、一氧化二氮（nitrous oxide, N₂O）以及卤代化合物的贡献。地表反照率可拆解为土地利用变化以及冰雪表面吸光粒子的贡献。气溶胶可拆解为气溶胶-云相互作用有效辐射强迫（ERFaci）与气溶胶-辐射相互作用有效辐射强迫（ERFari）的贡献。
针对气溶胶与太阳强迫，本数据集提供了2019年的单年数值（见表7.8），二者均与核心评估结果存在差异。由于火山喷发的偶发性特征，火山强迫未在本图中展示。更多关于数据源与处理流程的细节可参见第七章数据表（表7.SM.14）。

--------------------------------------------------- 与图7.6相关的提供数据 ---------------------------------------------------
本数据集配套的数据文件包括：
- AR6_ERF_1750-2019.csv
- AR6_ERF_1750-2019_pc05.csv
- AR6_ERF_1750-2019_pc95.csv
其中ERFaci指气溶胶-云相互作用有效辐射强迫，ERFari指气溶胶-辐射相互作用有效辐射强迫。

--------------------------------------------------- 基于提供数据复现图件的注意事项 ---------------------------------------------------
本图中柱形图的数据对应所提供CSV文件最后一行的2019年数据。本数据集与配套图件由第七章GitHub仓库的notebooks目录下的Jupyter笔记本（Jupyter Notebook）生成，相关仓库链接已在「相关文档」板块中给出。该处理流程中的所有Notebook均以数字作为前缀，如需复现本章全部结果，需按数字顺序运行所有Notebook。

--------------------------------------------------- 附加信息来源 ---------------------------------------------------
本目录记录的「相关文档」板块提供了如下网页链接：
- IPCC AR6官网的本图链接
- 包含本图的第七章报告章节链接
- 第七章补充材料链接，其中包含表7.SM.1至7.SM.7所用输入数据的详细信息
- 存档于Zenodo的绘图代码链接
- 第七章GitHub仓库链接
- 本图的绘图Notebook链接