ERA5 Reanalysis Data for PurpleAir Temperature Calibration (2022-2024)

Hourly ERA5 meteorological reanalysis data for the continental United States (CONUS) from June 2022 to December 2024. This dataset supports the PurpleAir temperature sensor calibration project. Variables included: • sshf: Surface sensible heat flux (J/m²) • ssrd: Surface solar radiation downwards (J/m²) • strd: Surface thermal radiation downwards (J/m²) • tp: Total precipitation (m) • u10: 10m U wind component (m/s) • v10: 10m V wind component (m/s) Coverage: • Spatial: CONUS (24°N-50°N, 235°E-293°E / -125°W to -67°W) • Temporal: June 2022 - December 2024 • Resolution: 0.25° × 0.25°, hourly Related publication: Zhang, Y., Rong, Y., & Liang, L. (2025). Nationwide Calibration of PurpleAir Temperature Sensors for Heat Exposure Research. Data source: ERA5 from Copernicus Climate Data Store (https://cds.climate.copernicus.eu/) File format: NetCDF4 files, one file per month (YYYY-MM.nc) Total: 31 files, ~47 GB