CO2 emissions changes due to COVID-19: modified SSP2-4.5 to account for sector activity level

Monthly CO2 emission projections, modified by the country-specific impacts of COVID-19 lockdown. This repository holds the netcdf files for CO2 emissions projected by the scenario SSP2-4.5, from the Scenario4MIPs database ( https://esgf-node.llnl.gov/search/input4mips/), modified by the country and sector activity levels associated with lockdown, projected out for 3 years after 2020 before returning to baseline. The details of these activity estimates can be found in https://github.com/Priestley-Centre/COVID19_emissions. The methodology behind these calculations is based on https://github.com/Rlamboll/modify_COVID19_netCDF_Emissions/, a slight modification of the approach used in https://zenodo.org/record/3947917#.XxR_qyhKhPZ for aerosols emissions, and version numbers used here are consistent with the data seen in that database. We present only a single scenario (called 2-year blip, featuring a one year recovery after the end of the 2 years) compared to the baseline. Funding was provided by the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement nos. 820829 (CONSTRAIN) http://constrain-eu.org/本数据集为经各国新冠疫情封控政策差异化影响修正后的月度二氧化碳（CO₂）排放预测成果。本仓库收录了来自情景模式比较计划4（Scenario4MIPs）数据库（https://esgf-node.llnl.gov/search/input4mips/）、基于共享社会经济路径（Shared Socioeconomic Pathways）SSP2-4.5情景预测的二氧化碳排放NetCDF格式文件，此类数据以封控政策关联的各国及各行业活动水平进行修正，预测时段覆盖2020年后三年，随后将回归基准排放情景。此类活动水平估算的详细信息可访问以下链接获取：https://github.com/Priestley-Centre/COVID19_emissions。本数据集的计算方法依托https://github.com/Rlamboll/modify_COVID19_netCDF_Emissions/项目开发，该方法是对https://zenodo.org/record/3947917#.XxR_qyhKhPZ中针对气溶胶排放所采用研究方法的小幅改进；本数据集所用的版本号与该数据库中的数据版本保持一致。相较于基准情景，本数据集仅提供了单一情景（命名为“两年波动”，即封控持续两年后经历一年的恢复阶段）。本研究得到欧盟地平线2020研究与创新计划的资助，项目编号为820829（CONSTRAIN），项目官网：http://constrain-eu.org/