Arctic Tundra Carbon Flux and Meteorology from Three Alaskan Towers

Half-hourly ground observations of carbon dioxide, methane, water vapor, and latent energy flux were recorded between 2011 and 2015 at three eddy covariance tower sites in the Alaskan Arctic. The dataset provides a long-term record of greenhouse gas fluxes and meteorological variables across a 300-km north-south transect on the North Slope. This data was collected by the National Aeronautics and Space Administration as part of the CARVE project.

Use Cases

• Analyzing seasonal and inter-annual patterns of CO2 and CH4 flux in relation to meteorological variables.
• Modeling the response of Arctic tundra carbon stocks to changes in soil moisture and temperature.
• Comparing greenhouse gas exchange across distinct vegetation communities represented by the three tower sites.
• Validating remote sensing estimates of carbon flux with ground-based in situ measurements.
• Investigating the diurnal cycle of water vapor and latent energy flux in the Arctic environment.

Strengths

• Provides a 5-year continuous record from 2011 to 2015, capturing inter-annual variability.
• Includes both real and gap-filled observations for key greenhouse gases at half-hourly intervals.
• Covers a 300-km transect with three distinct sites, allowing for spatial analysis across vegetation communities.

Limitations

• Specific row counts, column names, and dataset size are not provided by any source.
• Sources conflict on the last updated date, with one listing 2016 and another listing 2026.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Ground in situ flux and meteorological data from fixed instruments at eddy covariance towers.

Time Range

2011-2015

Freshness

2026-03-13 09:14:19.997838

Geography

Three sites (Atqasuk, Barrow, Ivotuk) forming a north-south transect on the North Slope of Alaska.