ABoVE: Methane Ebullition Hotspots in Frozen Lakes near Fairbanks, Alaska, Oct 2014

This dataset includes maps of the locations and number of methane ebullition hotspots in 15 frozen lakes in the southern portion of the Goldstream Valley and the surrounding landscape just north of Fairbanks, Alaska, USA. Hotspots were identified from early winter high resolution aerial photographs acquired three days after lake-ice formation in October 2014. Hotspot ebullition seeps are defined as point-sources of high ebullition that release methane from lake sediments year-round. High rates of bubbling impede ice formation. In early winter, bubbling leads to dark, round open holes in lake ice which were visible in the aerial photos. This project investigated the role of theromkarst lakes in thawing of permafrost and mobilization of organic carbon in frozen soils.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated June 22, 2026, 17:01 (UTC)
Created April 1, 2025, 14:07 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id dda5f60f-dc6b-4cea-82f5-add232f8a839
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/1861
license https://www.usa.gov/government-works
modified 2026-06-15T22:15:58Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 74dd020f7b9f38ed60462d56e040352a29997b0edd59ddb80b7aae2af59090d4
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -147.939, "NorthBoundingCoordinate": 64.9368, "EastBoundingCoordinate": -147.769, "SouthBoundingCoordinate": 64.863}]]
temporal 2014-10-08/2014-10-08
theme {"Earth Science"}