Alaskan Arctic data from NASA's CARVE project includes 3-hourly estimates of gross ecosystem CO2 exchange and respiration at ~1 km2 resolution from 2012 to 2014. It also contains year-round methane flux measurements from five eddy covariance towers and airborne CH4 and O3 data aggregated from flight campaigns. The data were generated using the PolarVPRM model and WRF-STILT simulations, funded by NSF ARCSS.
Use Cases
- Modeling carbon dioxide exchange in Arctic biomes based on the PolarVPRM model outputs.
- Analyzing methane flux and soil temperature relationships from the eddy covariance tower data.
- Mapping surface influence on atmospheric methane concentrations using the provided STILT model footprints.
- Comparing independent estimates of gross ecosystem exchange derived from different greenness observation sources.
Strengths
- Provides three independent estimates of gross ecosystem CO2 exchange for cross-validation.
- Includes data from multiple sources: MODIS, OCO-2, GOME-2, NARR meteorology, and field campaigns.
- Covers a multi-year time range from 2012 to 2014 for temporal analysis.
- Offers data at multiple spatial scales, including ~1 km2 pixel resolution and 5 km aggregated airborne data.
Limitations
- Row count and file size are unknown, which may limit suitability assessment.
- Column-level documentation is absent; field semantics must be inferred after download.
- Last update date is unknown; freshness unverified.
Provenance
- Source
- NASA CARVE Project
- Collection Method
- Data generated from model simulations (PolarVPRM, WRF-STILT) and collected from airborne campaigns and eddy covariance towers.
- Time Range
- 2012 to 2014
- Freshness
- null
- Geography
- State of Alaska, specifically the Alaskan Arctic tundra