Aboveground Biomass Estimates from SAR, Great Slave Lake Region 2019

Aboveground biomass estimates for areas in the Great Slave Lake Region of Canada's Northwest Territories for 2019. The data was derived from L-band synthetic aperture radar (SAR) data from JAXA's ALOS-2 satellite and NASA's UAVSAR instrument, calibrated with in situ measurements from 14 plots. Estimates are provided in 20-Mg ha-1 bins at 100-meter resolution in cloud optimized GeoTIFF format.

Use Cases

• Calibrating and validating remote sensing biomass models based on in situ plot measurements.
• Analyzing forest carbon stock changes based on 100-meter resolution biomass maps.
• Comparing biomass estimation methods based on L-band SAR data from ALOS-2 and UAVSAR.
• Mapping regional aboveground biomass distribution for ecological studies.

Strengths

• Calibrated with in situ aboveground biomass measurements from 14 plots sampled in 2019.
• Provides estimates at a 100-meter spatial resolution.
• Utilizes data from two authoritative sources: JAXA's ALOS-2 satellite and NASA's UAVSAR instrument.
• SAR data collection spans a five-year period from 2017 to 2021.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset's spatial coverage is limited to the Great Slave Lake Region in the Northwest Territories.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Aboveground biomass was estimated from SAR data using a logarithmic regression calibrated with in situ plot measurements, then mapped over available satellite tiles.

Time Range

Primary biomass estimates for 2019, using SAR data collected from 2017 to 2021.

Freshness

Last updated 2026-03-12 19:45:47.124072; freshness should be verified.

Geography

Great Slave Lake Region, Northwest Territories, Canada.