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Daily Surface Ozone (O3) MDA8 Concentrations across the Contiguous United States (0.01° × 0.01°), 1980-2023
May 12, 2026
Liu, Riyang; Kai Chen, 2026, "Daily Surface Ozone (O3) MDA8 Concentrations across the Contiguous United States (0.01° × 0.01°), 1980-2023", https://doi.org/10.60600/YU/M1WT9R, Yale Dataverse, V1
This dataset contains gridded surface ozone (O3) daily maximum 8-hour average (MDA8) concentrations (ppb) across CONUS at 0.01° × 0.01° spatial resolution, estimated by a Light Gradient Boosting Machine modeling framework incorporating geophysical a priori information from numerical simulations with novel k-fold nearest-neighbor distance matching c...
Daily 1 km Fine Particles (PM2.5) Concentrations across the United Kingdom, 1980-2019
Nov 3, 2025
Liu, Riyang; Kai Chen, 2025, "Daily 1 km Fine Particles (PM2.5) Concentrations across the United Kingdom, 1980-2019", https://doi.org/10.60600/YU/JE6TUZ, Yale Dataverse, V1
This dataset contains daily PM2.5 concentrations (μg/m3) across the United Kingdom at 1 km × 1 km spatial resolution. A two-stage model was developed to reconstruct long-term spatiotemporal variations in PM2.5 levels from 1980 to 2019. In stage 1, co-located PM10 measurements were used to augment PM2.5 observations through a calibration model. In S...
Daily 24-hour Average Nitrogen Dioxide (NO2) Concentrations over California (0.01° × 0.01°), 1980-2022
Nov 3, 2025
Liu, Riyang; Kai Chen, 2025, "Daily 24-hour Average Nitrogen Dioxide (NO2) Concentrations over California (0.01° × 0.01°), 1980-2022", https://doi.org/10.60600/YU/EIVOUY, Yale Dataverse, V1
This dataset contains daily 24-hour average NO2 concentrations (ppb) in California at 0.01° × 0.01° spatial resolution, estimated by integrating a priori NO2 information from chemical transport model simulations, publicly available geospatial predictors, and a deep learning algorithm. The modeling framework demonstrated robust performance across th...
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