Global 3D rocket launch and re-entry air pollutant and carbon dioxide emissions for 2020-2022

<p dir="ltr">All data compiled are in NetCDF format. These include variables gathered from multiple data sources and cross-checked to obtain activity data needed to calculate air pollutant and carbon dioxide (CO₂) emissions from rocket launches and object re-entries for 2020-2022. There are 4 types of data generated and provided in NetCDF files summarised below. A detailed description of data acquisition and cross-checking, the approach adopted to calculate mapped vertically resolved emissions, the emissions data validation, and a description of each of the variables in the files provided is in the Nature Scientific Data paper submitted for review.</p><p dir="ltr">(1) Compiled and cross-checked launch activity data in <b>launch</b><b>_activity</b><b>_data</b><b>_2020-2022.nc.</b></p><p dir="ltr">(2) Compiled and cross-checked relevant information and characteristics of each rocket launched from 2020 to 2022 in <b>rocket</b><b>_attributes</b><b>_2020-2022.nc.</b></p><p dir="ltr">(3) Compiled and cross-checked details of each re-entering object from 2020 to 2022 in <b>reentry</b><b>_activity</b><b>_data</b><b>_2020-2022.nc</b>.</p><p dir="ltr">(4) Compressed (*.tar.gz) files of 4 folders hosting the emissions. The 4 folders separate emissions into the different vertical and horizontal resolutions on which the emissions are gridded. The compressed files unzip from <500 MB each to >50 GB each and 606 GB total. The uncompressed files are daily files of hourly 3D gridded air pollutant and carbon dioxide (CO₂) emissions provided for direct input to GEOS-Chem or other models with emissions processing packages that regrid the emissions to the model grid. Emissions files are categorised as associated with all mission types, with non-megaconstellation (nonsmc) missions only or megaconstellation (smc) missions only or all (all) missions and are provided as daily files with the filename convention "<b>byprodu</b><b>ct_emis</b><b>_{</b><b>mission</b><b>_type}</b><b>_{</b><b>horiz</b><b>_res}</b><b>_{</b><b>vert</b><b>_res}</b><b>_</b><b>Y</b><b>YYYMMDD.nc4</b>". There are 12 sets of daily files for 2020-2022, where { } are used as placeholders for "all", "nonsmc" or "smc" for {mission_type}, "4x5" for 4^o latitude x 5^o longitude or "2x25" for 2^o latitude x 2.5^o longitude for {horiz_res}, "47" for 47 layers up to 0.01 hPa (~80 km) or "72" for 72 layers up to the same altitude for {vert_res}.</p><p dir="ltr">Code written in Python used to develop the emission inventory and to generate the NetCDF files is on Zenodo at https://zenodo.org/doi/10.5281/zenodo.13136856.</p>