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, 16:25 (UTC)
Created	March 31, 2025, 21:34 (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	a0c643c9-e0b4-40a9-9c5e-73624f44d6aa
harvest_source_id	61638e72-b36c-4866-9d28-551a3062f158
harvest_source_title	DNG Legacy Data
identifier	NASA-0000001__1
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	4bfd27c5f16c13a49ea0b7c8d364ae64bffc256b7fbd3f5b931034d7ea92eafa
source_schema_version	1.1
spatial	Global
temporal	1993-01-01/2014-01-01
theme	{"Earth Science"}