Satellite-Based Daily PM2.5 Estimates During Fire Seasons in Colorado
Journal Article
·
· Journal of Geophysical Research: Atmospheres
- Emory Univ., Atlanta, GA (United States)
- NOAA Air Resources Laboratory, College Park, MD (United States); George Mason Univ., Fairfax, VA (United States); Univ. of Maryland, College Park, MD (United States)
- Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- NOAA Air Resources Laboratory, College Park, MD (United States)
The western United States has experienced increasing wildfire activities, which have negative effects on human health. Epidemiological studies on fine particulate matter (PM2.5) from wildfires are limited by the lack of accurate high-resolution PM2.5 exposure data over fire days. Satellite-based aerosol optical depth (AOD) data can provide additional information in ground PM2.5 concentrations and has been widely used in previous studies. However, the low background concentration, complex terrain, and large wildfire sources add to the challenge of estimating PM2.5 concentrations in the western United States. Here, we applied a Bayesian ensemble model that combined information from the 1 km resolution AOD products derived from the Multi-angle Implementation of Atmospheric Correction (MAIAC) algorithm, Community Multiscale Air Quality (CMAQ) model simulations, and ground measurements to predict daily PM2.5 concentrations over fire seasons (April to September) in Colorado for 2011–2014. Our model had a 10-fold cross-validated R2 of 0.66 and root-mean-squared error of 2.00 μg/m3, outperformed the multistage model, especially on the fire days. Elevated PM2.5 concentrations over large fire events were successfully captured. The modeling technique demonstrated in this study could support future short-term and long-term epidemiological studies of wildfire PM2.5.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
- Sponsoring Organization:
- National Science Foundation (NSF); National Aeronautics and Space Administration (NASA); National Center for Advancing Translational Sciences (NCATS); National Institute of Environmental Health Sciences (NIEHS); National Institutes of Health (NIH); National Oceanic and Atmospheric Administration (NOAA); USDOE Office of Science (SC); USEPA
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1565672
- Journal Information:
- Journal of Geophysical Research: Atmospheres, Journal Name: Journal of Geophysical Research: Atmospheres Journal Issue: 15 Vol. 123; ISSN 2169-897X
- Publisher:
- American Geophysical UnionCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Estimating ground-level particulate matter concentrations using satellite-based data: a review
|
journal | December 2019 |
Estimating ground-level particulate matter concentrations using satellite-based data: a review
|
text | January 2019 |
Estimating ground-level particulate matter concentrations using satellite-based data: a review
|
text | January 2019 |
Similar Records
Using gap-filled MAIAC AOD and WRF-Chem to estimate daily PM2.5 concentrations at 1 km resolution in the Eastern United States
Impact of wildfires on regional ozone and PM2.5: Considering the light absorption of Brown carbon
Source sector and region contributions to BC and PM2.5 in Central Asia
Journal Article
·
Mon Nov 19 19:00:00 EST 2018
· Atmospheric Environment (1994)
·
OSTI ID:1490424
Impact of wildfires on regional ozone and PM2.5: Considering the light absorption of Brown carbon
Journal Article
·
Wed Nov 08 19:00:00 EST 2023
· Atmospheric Environment (1994)
·
OSTI ID:2282600
Source sector and region contributions to BC and PM2.5 in Central Asia
Journal Article
·
Tue Feb 17 19:00:00 EST 2015
· Atmospheric Chemistry and Physics (Online)
·
OSTI ID:1201744