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/本数据集为针对各国新冠疫情封控措施的差异化影响进行修正的月度二氧化碳排放预测结果。本仓库存储了源自Scenario4MIPs数据库（https://esgf-node.llnl.gov/search/input4mips/）的SSP2-4.5（共享社会经济路径2-4.5）情景下二氧化碳排放预测的NetCDF（网络通用数据格式）文件；该数据集基于与封控措施相关的各国及各行业活动水平进行修正，预测时段覆盖2020年后的3年，随后回归至基准情景水平。此类活动水平估算的详细信息可参阅：https://github.com/Priestley-Centre/COVID19_emissions。本数据集的计算方法基于https://github.com/Rlamboll/modify_COVID19_netCDF_Emissions/项目，该项目是对https://zenodo.org/record/3947917#.XxR_qyhKhPZ中用于气溶胶排放的研究方法的小幅改进；本数据集所使用的版本号与该数据库中的数据版本保持一致。本数据集仅提供一种与基准情景对比的情景（命名为"两年冲击情景"，即封控结束后需经过1年的恢复周期）。本项目受欧盟地平线2020研究与创新计划资助，资助协议编号为820829（CONSTRAIN），详情可访问：http://constrain-eu.org/。