Impacts of Permafrost Degradation on Nitrous Oxide Emissions

This dataset contains process-based model simulations of nitrous oxide (N2O) emissions and production from natural terrestrial ecosystems across northern high latitudes under baseline and permafrost-thaw conditions. Simulations cover northern high-latitude terrestrial ecosystems from 1969 to 2019 at a spatial resolution of 0.5-degree x 0.5-degree. Annual gridded outputs are reported in units of mg N m-2 yr-1. The dataset was generated using the Terrestrial Ecosystem Model (TEM), a process-based biogeochemical model that explicitly represents terrestrial carbon and nitrogen cycling and incorporates permafrost-related processes. Two simulation scenarios are included: a baseline simulation and a permafrost-thaw simulation. For each scenario, annual gridded outputs include summed N2O net emissions and summed N2O production. The dataset provides information on the spatial and temporal patterns of N2O responses to permafrost degradation and can support studies of nitrogen cycling, ecosystem-climate interactions, climate feedbacks, and model intercomparison analyses. The data are provided in comma-separated values (CSV) format.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated October 20, 2026, 11:24 (UTC)
Created August 11, 2026, 01:00 (UTC)
Identifier 10.3334/ORNLDAAC/2510
Modified 2026-10-15T20:12:08Z
Theme {"Earth Science"}
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id ec5a3856-b528-4fff-9f28-4bb770ca86b8
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
license https://www.usa.gov/government-works
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash 843afe84cd6ca56a6d370f9d2f94c7e4a8cb4b50c2c68d80427d165de918a1cd
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -180.0, "NorthBoundingCoordinate": 83.0, "EastBoundingCoordinate": 180.0, "SouthBoundingCoordinate": 45.0}]]
temporal 1969-01-01/2019-12-31