Aboveground biomass estimates for forests in Canada's Northwest Territories are derived from L-band synthetic aperture radar data from satellites and aircraft. Data from 2017 to 2021 were calibrated using in situ measurements from 14 plots sampled in 2019, producing maps at 100-meter resolution. The dataset was processed by ORNL_CLOUD.
Use Cases
- Calibrate biomass regression models using in situ plot measurements from 2019.
- Map forest carbon stocks at 100-m resolution using the provided GeoTIFF raster data.
- Analyze temporal biomass changes using SAR data collected from 2017 to 2021.
- Validate satellite-derived biomass estimates against UAVSAR airborne radar data.
Strengths
- Calibrated with in situ measurements from 14 plots.
- Provides estimates at 100-meter spatial resolution.
- Uses data from multiple radar sources (ALOS-2 and UAVSAR).
Limitations
- Limited calibration data from only 14 in situ plots.
- Biomass estimates are provided in coarse 20-Mg ha-1 bins.
- Geographic scope is restricted to the Great Slave Lake Region.
Provenance
- Source
- ORNL_CLOUD via NASA Earthdata.
- Collection Method
- Biomass estimated from ALOS-2/PALSAR-2 and UAVSAR SAR data, calibrated with in situ plot measurements.
- Time Range
- SAR data collected from 2017 to 2021; in situ measurements from 2019.
- Freshness
- null
- Geography
- Great Slave Lake Region, Northwest Territories, Canada.