Aeronet AOD

Metadata Updated: August 1, 2018

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.

Access & Use Information

Public: This dataset is intended for public access and use. License: U.S. Government Work

Downloads & Resources


Metadata Created Date August 1, 2018
Metadata Updated Date August 1, 2018
Data Update Frequency irregular

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date August 1, 2018
Publisher National Aeronautics and Space Administration
Unique Identifier NASA-0000001
Brent Holben
Maintainer Email
Id {$oid: 55942a78c63a7fe59b49747e}
Public Access Level public
Data Update Frequency irregular
Bureau Code 026:00
Metadata Context
Schema Version
Catalog Describedby
Harvest Object Id 14879407-6a59-49ca-8f5c-86c948cf6e09
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Homepage URL
Language en-US
Data Last Modified 2014-02-09
Program Code 026:001
Source Datajson Identifier True
Source Hash 64199f07c0acf86772ec34e6fb67270f37d96c6f
Source Schema Version 1.1
Spatial Global
Temporal 1993-01-01/2014-01-01

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