Aeronet AOD

Sun photometer measurements of the direct (collimated) solar radiation provide information to calculate the columnar aerosol optical depth (AOD). AOD can be used to compute columnar water vapor (Precipitable Water) and estimate the aerosol size using the Angstrom parameter relationship. Two data versions (Versions 1 and 2) and three quality levels (Levels 1.0, 1.5, 2.0) exist for each product. While Levels 1.0 and 1.5 are provided in near real-time, the 12-month or longer delay (due to final calibration and manual inspection) ensures that the highest quality data can be found in Version 2, Level 2.0 data products. Level 2: pre- and post-field calibration applied, automatically cloud cleared and manually inspected.

Data and Resources

This dataset has no data

Additional Info

Field	Value
Maintainer	Brent Holben
Last Updated	July 17, 2025, 15:52 (UTC)
Created	March 31, 2025, 19:35 (UTC)
accessLevel	public
accrualPeriodicity	irregular
bureauCode	{026:00}
catalog_@context	https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id	https://data.nasa.gov/data.json
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy	https://project-open-data.cio.gov/v1.1/schema/catalog.json
harvest_object_id	49bef322-4373-46b3-bdd9-e07c38e136b0
harvest_source_id	61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title	DNG Legacy Data
identifier	NASA-0000001
issued	2018-06-25
landingPage	http://aeronet.gsfc.nasa.gov/
modified	2020-01-29
programCode	{026:001}
publisher	National Aeronautics and Space Administration
resource-type	Dataset
source_datajson_identifier	true
source_hash	0c724f3b7e0fd7778191663d7454281ee0c0a4d53b8d0773bba52e7388d23c0d
source_schema_version	1.1
spatial	Global
temporal	1993-01-01/2014-01-01
theme	{"Earth Science"}