Historical Vegetation Height Model NFI

The main datasets available are 4 nationwide Digital Surface Models (DSMs) and corresponding Vegetation Height Models (VHMs) with a spatial resolution of 1 m. The Vegetation Height Models are calculated by subtraction of a Digital Terrain Model (swissAlti3d version 2017, swisstopo) from the generated DSMs. DSMs were derived by image matching of scanned historical images (panchromatic 8-bit) acquired with a RC10 frame camera, in the context of the swisswide image acquisition campaigns of swisstopo. Nationwide products could be generated for the four epochs 1979-1985 / 1985-1991 / 1990-1998 / 1998-2006.

Additional information about successful image matching vs. interpolation of pixels and about the year of image acquisition are available in the corresponding files (matched_area_xxxx_xxxx_binay.tif and meta_acquisition_year_xxxx_xxxx.json, respectively).

To separate vegetation from non-vegetation areas a mask derived from a combination of information of the Topographic landscape model - TLM (swisstopo) and a NDVI layer was used and is supplied as "TLM_mask.tif"

Due to the occurrence of unrealistic vegetation height values caused by the failure of the image matching process (mainly overexposed images and clouds or very steep rocky terrain), pixel values > 60 m were set to NoData and < 0 m to 0.

All datasets are available in the Reference System LV95 (EPSG: 2056) LN02 (EPSG: 5728) and share the common extent definition (xmin ymin xmax ymax): 2480000 1070000 2840000 1300000

Funding Information:

This work was supported by:
  • WSL - NFI

Citation:

Marty, Mauro; Ginzler, Christian; Waser, Lars; Piermattei, Livia (2024). Historical Vegetation Height Model NFI. EnviDat. doi:10.16904/envidat.528.

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Data and Resources

Metadata

Field Values
DOI 10.16904/envidat.528
Publication State Published
Authors
  • Email: mauro.martyfoo(at)wsl.ch ORCID: 0000-0002-0943-2454 Given Name: Mauro Family Name: Marty Affiliation: Remote Sensing, Landscape Change Science, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, 8903 Birmensdorf, Switzerland
  • Email: christian.ginzlerfoo(at)wsl.ch ORCID: 0000-0001-6365-2151 Given Name: Christian Family Name: Ginzler Affiliation: Remote Sensing, Landscape Change Science, Swiss Federal Institute for Forest, Snow and Landscape Research WSL, 8903 Birmensdorf, Switzerland
  • Email: lars.waserfoo(at)wsl.ch ORCID: D-5937-2011 Given Name: Lars Family Name: Waser Affiliation: Swiss Federal Institute for Forest, Snow and Landscape Research WSL
  • Email: livia.piermatteifoo(at)geo.uzh.ch ORCID: 0000-0003-2814-8659 Given Name: Livia Family Name: Piermattei Affiliation: UZH
Contact Person Given Name: Mauro Family Name: Marty Email: mauro.martyfoo(at)wsl.ch
Subtitles
Publication Publisher: EnviDat Year: 2024
Dates
  • Type: Created Date: 2007-02-01 End Date: 2023-02-01
  • Type: Collected Date: 1979-05-01 End Date: 2006-10-31
Version
Type dataset
General Type Dataset
Language
Location
Content License Creative Commons Zero - No Rights Reserved (CC0 1.0)    [Open Data]
Last Updated August 29, 2024, 11:34 (UTC)
Created May 31, 2024, 08:51 (UTC)