Optical Thickness Data: C-130 (FIFE)

The data in the Sunphotometer Optical Thickness Data from C130 Aircraft data set were collected in June, July and August 1987, and in August 1989. The data was collected at selected locations within the FIFE study area. Atmospheric optical depths derived from measurements of solar radiation by the airborne suntracking sunphotometer are available in this data set. These data are necessary for atmospheric correction of data from Earth viewing airborne and satellite sensors in the visible and near infrared regions of the electromagnetic spectrum. The data show that atmospheric optical depth changes significantly both spatially and temporally. Variability in atmospheric optical properties and substantial differences in atmospheric optical properties during the data collection, emphasize the need to make quantitative measurements of atmospheric optical properties at the time of remote sensing data acquisition.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated September 15, 2026, 04:17 (UTC)
Created April 1, 2025, 18:20 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 84661c63-0073-4f71-951c-39d337c78e3d
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/63
license https://www.usa.gov/government-works
modified 2026-09-07T22:16:03Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash fbacb1a5c64b984bad97bb1a958a352ad0c3aeb9a54f49e91ea3ec19105dc257
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -97.0, "NorthBoundingCoordinate": 40.0, "EastBoundingCoordinate": -95.0, "SouthBoundingCoordinate": 39.0}]]
temporal 1987-06-04/1989-08-11
theme {"Earth Science"}