We are in the process of migrating all NASA Earth science data sites into Earthdata from now until end of 2026. Not all NASA Earth science data and resources will appear here until then. Thank you for your patience as we make this transition.
Read about the Web Unification Project
Low-Cost Sensor AQ
Low-Cost Air Quality Sensor Harmonization Database
The Low-Cost Sensor AQ Harmonization aims to amalgamate and standardize measurements from a multitude of small air quality networks into one open access framework. Currently, data come from 18 unique US-based sensor networks and have been collected for redistribution in the archive.
Data from each network are reformatted into a common format, with metadata embedded to streamline data processing. A key feature is a tier system, in which the team critically reviews each sensor network by its calibration efforts, providing data quality flags to help end users determine which sensor data best meets their target application. The framework allows users to search based on calibration criteria in addition to location, date range, and pollutant of interest.
The harmonized sensor database is aimed at scientific end users seeking ground-based validation data for satellites and models, but is also accessible to community scientists. Please visit the Sensor Data Web App to visualize the sensor network data.
The team is currently accepting new submissions. If you maintain a sensor network that you would like included, please contact the PI.
Principal Investigator
Kristen Okorn
Data Centers
ASDC
Funding Programs
Global Learning and Observations to benefit the Environment Program
Early Career Investigator Program in Earth Science