BOREAS AFM-04 Twin Otter Aircraft Sounding Data

The BOREAS AFM-04 team used the NRC Twin Otter aircraft to make sounding measurements through the boundary layer. These measurements included concentrations of carbon dioxide and ozone, atmospheric pressure, dry bulb temperature, potential temperature, dewpoint temperature, calculated mixing ratio, and wind speed and direction. Aircraft position, heading, and altitude were also recorded. Data were collected at both the NSA and the SSA in 1994 and 1996.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated June 22, 2026, 20:12 (UTC)
Created April 1, 2025, 14:42 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 1e7b8791-3c33-4a8e-8372-04ec3bd6e312
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/498
license https://www.usa.gov/government-works
modified 2026-06-15T22:15:59Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 90a90503ae95cbdaef605a75204a8af79c9482ab15d892cb1d09158824aacbe4
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -106.42, "NorthBoundingCoordinate": 56.02, "EastBoundingCoordinate": -97.86, "SouthBoundingCoordinate": 53.21}]]
temporal 1994-05-25/1996-08-08
theme {"Earth Science"}