authority: folia
slug: canopy-height
name: Canopy Height
domain: land
subdomain: biosphere
authority_id: folia:canopy-height
aliases:
  - chm
  - canopy-height-model
external_ids:
  cf_standard_name: canopy_height
canonical_units: m
external_validations:
  product:
    id: meta-global-chm
    docs_url: https://github.com/facebookresearch/HighResCanopyHeight
  product_alt:
    id: eth-gchm-2020
    docs_url: https://langnico.github.io/globalcanopyheight/
description: |
  Height of the vegetation canopy above the underlying ground surface.
  Computationally DSM minus DTM where lidar gives both; globally
  available now from satellite-derived models — Meta + WRI 1m Global
  CHM (Sentinel-2 + GEDI), ETH Global Canopy Height 2020 (Sentinel-2 +
  GEDI), GEDI L4B native footprint products. A key input to
  above-ground biomass and carbon-stock models; complements the GCOS
  above-ground-biomass ECV at finer spatial granularity.
theme: vegetation
consumed_by: []
produced_by: []
demos: []
status: documented
sources:
  - https://github.com/facebookresearch/HighResCanopyHeight
  - https://langnico.github.io/globalcanopyheight/
  - https://gedi.umd.edu/data/products/
  - Tolan et al. 2024, Remote Sensing of Environment 300, 113888 (Meta 1m CHM)
  - Lang et al. 2023, Nature Ecology & Evolution 7, 1778-1789 (ETH GCHM)