Data for Remote Sensing: Biomass Change Estimated by TanDEM-X Interferometry and GEDI in a Tanzanian Forest

DOI

Mapping and quantification of forest biomass change are key for forest management and for forests’ contribution to the global carbon budget. We explored the potential of covering this with repeated acquisitions with TanDEM-X. We used an eight-year period in a Tanzanian miombo woodland as a test case, having repeated TanDEM-X elevation data for this period and repeated field inventory data. We also investigated the use of GEDI space–LiDAR footprint AGB estimates as an alternative to field inventory. The map of TanDEM-X elevation change appeared to be an accurate representation of the geography of forest biomass change. The relationship between TanDEM-X phase height and above-ground biomass (AGB) could be represented as a straight line passing through the origin, and this relationship was the same at both the beginning and end of the period. We obtained a similar relationship when we replaced field plot data with the GEDI data. In conclusion, temporal change in miombo woodland biomass is closely related to change in InSAR elevation, and this enabled both an accurate mapping and quantification wall to wall within 5–10% error margins. The combination of TanDEM-X and GEDI may have a near-global potential for estimation of temporal change in forest biomass.

Identifier
DOI https://doi.org/10.18710/UZOUB0
Related Identifier https://doi.org/10.3390/rs16050861
Metadata Access https://dataverse.no/oai?verb=GetRecord&metadataPrefix=oai_datacite&identifier=doi:10.18710/UZOUB0
Provenance
Creator Solberg, Svein ORCID logo
Publisher DataverseNO
Contributor Solberg, Svein; Norwegian Institute of Bioeconomy Research (NIBIO)
Publication Year 2024
Rights CC0 1.0; info:eu-repo/semantics/openAccess; http://creativecommons.org/publicdomain/zero/1.0
OpenAccess true
Contact Solberg, Svein (Norwegian Institute of Bioeconomy Research (NIBIO))
Representation
Resource Type Dataset
Format text/plain; image/tiff; application/octet-stream; application/dbf; application/prj; application/shp; application/shx
Size 3047; 324054378; 10; 657668; 408; 1524980; 31220
Version 1.0
Discipline Earth and Environmental Science; Environmental Research; Geosciences; Natural Sciences
Spatial Coverage (37.737W, -10.010S, 38.139E, -9.600N)