Datasets for modelling direct CO2 emissions and uptake at neighborhood scale over the urban area of Beijing

This dataset provides the model output, eddy covariance observations, and a model example related to the manuscript "Direct CO2 emissions and uptake at neighborhood scale over the urban area of Beijing". The folders are: 1. Modelled_CO2_Fluxes This folder contains the output modelled CO2 fluxes generated by SUEWS. Fc is the net CO2 flux, FcPhoto the CO2 uptake by vegetation, FcRespi the CO2 release from soil and vegetation respiration, FcMetab the CO2 emissions from human metabolism, FcTraff the CO2 emissions from on-road traffic, FcBuild the CO2 emissions from the local fuel combustion in buildings, FcPoint the CO2 emissions from local point sources. Longitudes and latitudes denote the centroid of grid. 1.1 Fc_annual_2016_g_C_m-2_yr-1.nc is the annual CO2 fluxes (Fc and its components) in g C m-2 year-1. 1.2 Fc_monthly_2016_g_C_m-2_mon-1.nc is the monthly CO2 fluxes (Fc and its components) in g C m-2 month-1. 1.3 Fc_annual_2016_g_C_m-2_yr-1.tiff is the annual Fc (g C m-2 year-1) provided in GeoTiff format. 1.4 6_ring_EPSG4326 contains the ESRI Shapefile defining the study area (with the 6th Ring Road in Beijing as the boundary). 2. ModelRun This folder includes SUEWS source code and a model run sample. 2.1 SUEWS_SourceCode is a folder including SUEWS V2020b source Fortran codes. For detailed descriptions, readers are referred to SUEWS webpage (https://suews.readthedocs.io/en/latest/). Enter "make" through the command line and a SUEWS executive will be built under ".../ModelRun/Release" 2.2 EvaluationRun is a folder including the SUEWS run for model performance evaluation. The modelled area is a 12 km radius circle around the IAP tower. To conduct a quick model run to reproduce the results demonstrated in the manuscript, use command line "./SUEWS_V2020b". 3. Observations The unit for CO2 flux (Fc) is μmol m-2 s-1 under this folder. 3.1 co2_flux_140m_2016.csv is the 30-min Fc observations before quality control obtained with eddy covariance (EC) technique for the year 2016 at 140 m of IAP tower. 3.2 co2_flux_140m_2016_rm_QC.csv is the Fc observations after quality control and resampled to hourly resolution. 3.3 Fc_gapfilled_with_MeanDC.csv is the Fc time series for the year 2016 gap-filled with the Mean Diurnal Cycle method on a seasonal basis. Contact information: [e-mail]