Daily and Annual PM2.5 Concentrations for the Contiguous United States, 1-km Grids, v1 (2000 - 2016)

The Daily and Annual PM2.5 Concentrations for the Contiguous United States, 1-km Grids, v1 (2000 - 2016) data set includes predictions of PM2.5 concentrations in grid cells at a resolution of 1 km for the years 2000 to 2016. A generalized additive model was used that accounted for geographic difference to ensemble daily predictions of three machine learning models: neural network, random forest, and gradient boosting. The three machine learners incorporated multiple predictors, including satellite data, meteorological variables, land-use variables, elevation, chemical transport model predictions, several reanalysis data sets, as well as other predictors. The annual predictions were calculated by averaging the daily predictions for each year in each grid cell. The ensembled model demonstrated better predictive performance than the individual machine learners with 10-fold cross-validated R-squared values of 0.86 for daily predictions and 0.89 for annual predictions.

Data and Resources

Additional Info

Field Value
Maintainer undefined
Last Updated April 23, 2025, 20:20 (UTC)
Created April 23, 2025, 20:20 (UTC)
accessLevel public
bureauCode {026:00}
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catalog_@id https://data.nasa.gov/data.json
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citation Di, Q., Y. Wei, A. Shtein, C. Hultquist, X. Xing, H. Amini, L. Shi, I. Kloog, R. Silvern, J. Kelly, M. B. Sabath, C. Choirat, P. Koutrakis, A. Lyapustin, Y. Wang, L. J. Mickley, and J. Schwartz. 2021-07-15. Daily and Annual PM2.5 Concentrations for the Contiguous United States, 1-km Grids, v1 (2000 - 2016). Version 1.0. Palisades, NY. Archived by National Aeronautics and Space Administration, U.S. Government, NASA Socioeconomic Data and Applications Center (SEDAC). https://doi.org/10.7927/10.7927/0rvr-4538. https://doi.org/10.7927/0rvr-4538.
creator Di, Q., Y. Wei, A. Shtein, C. Hultquist, X. Xing, H. Amini, L. Shi, I. Kloog, R. Silvern, J. Kelly, M. B. Sabath, C. Choirat, P. Koutrakis, A. Lyapustin, Y. Wang, L. J. Mickley, and J. Schwartz
graphic-preview-description Sample browse graphic of the data set.
graphic-preview-file https://sedac.ciesin.columbia.edu/downloads/maps/aqdh/aqdh-pm2-5-concentrations-contiguous-us-1-km-2000-2016/sedac-logo.jpg
harvest_object_id 8eacc2f2-5201-4c8f-af65-29e70d6fbb74
harvest_source_id b37e5849-07d2-41cd-8bb6-c6e83fc98f2d
harvest_source_title DNG Legacy Data
identifier C2091764506-SEDAC
issued 2021-07-15
landingPage https://doi.org/10.7927/10.7927/0rvr-4538
language {en-US}
metadata_type geospatial
modified 2021-07-15
programCode {026:001}
publisher SEDAC
release-place Palisades, NY
resource-type Dataset
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source_hash 57f954f97c56055a9fbcf47f4db853cea119d6682815ba0123617ce3edf7680b
source_schema_version 1.1
spatial -180.0 17.0 -65.0 72.0
temporal 2000-01-01T00:00:00Z/2016-12-31T00:00:00Z
theme {AQDH,geospatial}