Simulated Fine Particulate Matter (PM2.5) Estimates over Alaska, 2001-2015

The dataset provides simulated PM2.5 concentration estimates over Alaska, U.S. PM2.5 (particulate matter with diameter <= 2.5 microns) concentrations in air (micrograms m-3) are gridded at 0.1-degree resolution for May to September for the years 2001 through 2015. The data were created in a modeling process utilizing the Wildland Fire Emissions Inventory System (WFEIS), the Arctic-Boreal Vulnerability Experiment (ABoVE) Wildfire Date of Burning (WDoB) dataset, and multiple models including the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model. The data are provided in GeoTIFF format.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated June 8, 2026, 22:48 (UTC)
Created April 1, 2025, 18:59 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 48c104fa-839d-410d-801f-6aa612d324e3
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/2157
license https://www.usa.gov/government-works
modified 2026-06-03T16:52:50Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash f75a3569d2b0f2f03ca4ed7a7440e50db7be7c36a9a606f470b5d203efa045f8
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -178.0, "NorthBoundingCoordinate": 71.0, "EastBoundingCoordinate": -128.0, "SouthBoundingCoordinate": 51.0}]]
temporal 2001-05-10/2015-09-28
theme {"Earth Science"}