Forest Carbon Diligence

Planet — version 1.1 (April 2024)

Description

This dataset quantifies the aboveground live carbon density (Mg C/ha), canopy cover (%), and canopy height (m) of plants at 30 m spatial resolution. Data has global coverage and annual temporal resolution, available from 2013 onwards. Data includes pixel-level variable uncertainties (90% prediction intervals).

Dataset ID
53738a57
Category
Plant biomass
Type
Raster
CRS
EPSG:4326
Spatial coverage
Global
Spatial resolution
30 m
Temporal coverage
2013+
Temporal resolution
Annual

Usage notes

New time points are delivered 5-6 months after year end. Spatial coverage is limited to land surfaces between 76°N and 56°S. In urban areas, double-bounce radar backscatter among buildings may result in over-predictions. Circular spatial artefacts can lead to temporal differences between adjacent pixels.

Variables

aboveground_live_carbon_density

Typeint16UnitsMg C/ha

Description

The density of carbon stored in live woody vegetation on a per hectare basis. Data is generated using LightGBM regression models trained to predict GEDI L4A aboveground biomass carbon from modelled canopy height, modelled canopy cover, elevation, and location.

Usage notes

Calculations are restricted to live woody aboveground biomass. A relative carbon content of 0.476 was used to convert GEDI L4A biomass data from total biomass density to biomass carbon density. Pixels with canopy cover of 0% are set to 0 Mg C/ha.

aboveground_live_carbon_density_lower_bound

Typeint16UnitsMg C/ha

Description

The 90% prediction interval lower bound for the aboveground live carbon density variable.

aboveground_live_carbon_density_upper_bound

Typeint16UnitsMg C/ha

Description

The 90% prediction interval upper bound for the aboveground live carbon density variable.

canopy_cover

Typeuint8Units%

Description

The relative cover of trees. Data is generated using U-Net image regression models trained to predict > 9 million km² of airborne LiDAR data from a combination of spaceborne remote sensing datasets.

Usage notes

Trees are defined as vegetation with canopy height > 5 m. Buildings, bridges, and other non-vegetation classes are excluded. Values < 10% are set to 0%. Pixels with canopy cover of 0% at the start and end of the full temporal coverage are set to 0% throughout.

canopy_cover_lower_bound

Typeuint8Units%

Description

The 90% prediction interval lower bound for the canopy cover variable.

canopy_cover_upper_bound

Typeuint8Units%

Description

The 90% prediction interval upper bound for the canopy cover variable.

canopy_height

Typeuint8Unitsm

Description

The average height (m) of trees. Data is generated using U-Net image regression models trained to predict > 9 million km² of airborne LiDAR data from a combination of spaceborne remote sensing datasets.

Usage notes

Trees are defined as vegetation with canopy height > 5 m. Pixel values are averages of higher resolution point clouds, so modelled height values are shorter than the tallest individual tree in a pixel. Buildings, bridges, and other non-vegetation classes are excluded. Square spatial artefacts can result in canopy height appearing up to 2 m higher in a pixel relative to surrounding pixels, but remain within prediction intervals. Pixels with a canopy height difference of < 3 m between the start and end of the full temporal coverage are set to the median value. Canopy height for pixel values with canopy cover of 0% is set to 0 m.

canopy_height_lower_bound

Typeuint8Unitsm

Description

The 90% prediction interval lower bound for the canopy height variable.

canopy_height_upper_bound

Typeuint8Unitsm

Description

The 90% prediction interval upper bound for the canopy height variable.

day_of_year

TypeDate (YYYY-MM-DD)

Description

Calendar day of the satellite observation.

observation_quality

Typeuint8

Description

Planet quality score.

ValueDescription
0-100Estimated observation quality. Low values indicate low quality observations (e.g. hazy, cloudy, off-season). High values indicate high quality observations (e.g. clear, cloud-free, peak greenness).
213+Year of closest available measurement where persistent cloud cover or haze has resulted in 0 valid measurements in a year. The nearest-in-time clear observation is then used. For example, 213 refers to 2013, and 222 refers to 2022.

Pricing

This dataset adds a new time point annually. A data request returns the full archive up to the most recent time point. Data acquisition costs are per hectare for the full archive:

VolumePrice
Any$0.10 / ha

Resources

Provider

Planet

www.planet.com

Planet is an Earth imaging company based in San Francisco (US). Planet aims to image the Earth daily and support change analysis. Planet offers several products, ranging from satellite imaging to derived scientific data.