ASDC | Low-Cost-Sensors-AQ_AirGradient

Low-Cost Sensor AQ Level 2

Entry Title: Low Cost Sensors AQ AirGradient Data

Entry ID: Low-Cost-Sensors-AQ_AirGradient_1

Aerosols

Description

Low-Cost-Sensors-AQ_AirGradient is the ground site data collected by the AirGradient sensor network as part of the Low-Cost Air Quality Sensor Harmonization Database. Data collection for this product is ongoing.

The Low-Cost Sensor AQ Harmonization aims to harmonize sensor networks by amalgamating measurements from a multitude of networks into one open access framework. Currently, data from 10 unique US-based sensor networks have been collected for redistribution in the archive. Data from each network is reformatted in a common data 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 their calibration efforts and subsequent data quality, 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 sensor database is aimed at scientific end users seeking ground-based validation data for satellites and models alike but is also accessible to community scientists. The team is currently accepting new submissions! If you maintain a sensor network that you would like included, please contact the PI (kristen.e.okorn@nasa.gov).

DOI

10.5067/Low-Cost-Sensors-AQ/AirGradient

Citation Styles for this Dataset

Resources and Documentation

Earthdata Forum

PROJECT HOME PAGE

AirGradient Home Page

VIEW RELATED INFORMATION

DATA CITATION GUIDELINES

How to Cite ASDC Data

PI DOCUMENTATION

From GCMD Science Keywords:

CARBON DIOXIDE SURFACE > ATMOSPHERIC CARBON DIOXIDE > CARBON AND HYDROCARBON COMPOUNDS
PARTICULATE MATTER (PM 2.5) > PARTICULATE MATTER

Data Distribution

Spatial Information

Spatial Coverage: (S: -84.34, N: 64.15), (W: -149.91, E: 175.93)
Spatial Coverage Type: Horizontal Vertical
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

NORTHERN HEMISPHERE EASTERN HEMISPHERE TROPOSPHERE ONTARIO ALBERTA SAN JOSE DENVER SEATTLE BALTIMORE LONG ISLAND MEXICO BRAZIL ARGENTINA SOUTH AFRICA KENYA ISRAEL GHANA BENIN GERMANY SWITZERLAND IRELAND UNITED KINGDOM BELGIUM INDIA NEPAL THAILAND PHILIPPINES AUSTRALIA

Temporal Information

Temporal Coverage: 2019-11-08 - Present

Platforms

Permanent Land Sites

AirGradient

Instruments not applicable.

Metadata Dates

Created on 2026-05-05