DOI: 10.16904/1000001.1
title: Vegetation Height Model NFI

description: Countrywide **vegetation height models (VHM)** were generated for Switzerland based on **stereo aerial images**, acquired by the Federal Office of Topography swisstopo. 
From the ADS-80/100 sensor data, first a digital surface model (DSM) with a spatial resolution of 1 × 1 m is processed. This DSM is then normalized using the digital terrain model (DTM) swissALTI3D (swisstopo). Buildings and other artificial objects are masked out from the nomalized DSM (nDSM) using information from the topogrphic landscape model - TLM (swisstopo) to obtain the actual vegetation height model (VHM). 
These VHM's are produced in the framework of the Swiss National forest Inventory (NFI). Each year about 1/6 of Switzerland's surface is updated using the leaf-on aerial images acquired by swisstopo (may - october). 
Further information on the creation of the VHM NFI can be found in the paper Ginzler and Hobi (2015, https://doi.org/10.3390/rs70404343).
description: Resource Title: Countrywide Stereo-Image Matching for Updating Digital Surface Models in the Framework of the Swiss National Forest Inventory
 Size: 1 bytes
 Format: No Info
 URL: https://www.dora.lib4ri.ch/wsl/islandora/object/wsl:3143
 Description:
description: Resource Title: Thumbnail
 Size: 6375018 bytes
 Format: image/jpeg
 URL: https://www.envidat.ch/dataset/d0e70abe-cc8a-4d91-8798-fa2d9991230f/resource/2c642ad3-adc7-4e28-ac78-a0a79f963fc1/download/vegetation_height_model_thumbnail.jpg
 Description:
description: Resource Title: 2012 Vegetation Height Model NFI (2007-2012)
 Size: 67216238182 bytes
 Format: No Info
 URL: https://envicloud.wsl.ch/#/?bucket=https%3A%2F%2Fos.zhdk.cloud.switch.ch%2Fenvicloud%2F&prefix=doi%2F1000001.1%2F2012%2F
 Description: Vegetation Height Model of Switzerland for the year 2012 (cloud optimized geotiff)
and Metadata file with information about acquisition date of used images for tiles of 500 x 500 m (geopackage).
description: Resource Title: 2015 Vegetation Height Model NFI (2010-2015)
 Size: 63995012710 bytes
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 URL: https://envicloud.wsl.ch/#/?bucket=https%3A%2F%2Fos.zhdk.cloud.switch.ch%2Fenvicloud%2F&prefix=doi%2F1000001.1%2F2015%2F
 Description: Vegetation Height Model of Switzerland for the year 2015 (cloud optimized geotiff)
and Metadata file with information about acquisition date of used images for tiles of 500 x 500 m (geopackage).
description: Resource Title: 2016 Vegetation Height Model NFI (2011-2016)
 Size: 48533130445 bytes
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 URL: https://envicloud.wsl.ch/#/?bucket=https%3A%2F%2Fos.zhdk.cloud.switch.ch%2Fenvicloud%2F&prefix=doi%2F1000001.1%2F2016%2F
 Description: Vegetation Height Model of Switzerland for the year 2016 (cloud optimized geotiff)
and Metadata file with information about acquisition date of used images for tiles of 500 x 500 m (geopackage).
description: Resource Title: 2019 Vegetation Height Model NFI (2013-2019)
 Size: 50358491546 bytes
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 URL: https://envicloud.wsl.ch/#/?bucket=https%3A%2F%2Fos.zhdk.cloud.switch.ch%2Fenvicloud%2F&prefix=doi%2F1000001.1%2F2019%2F
 Description: Vegetation Height Model of Switzerland for the year 2019 (cloud optimized geotiff)
and Metadata file with information about acquisition date of used images for tiles of 500 x 500 m (geopackage).
description: Resource Title: 2020 Vegetation Height Model NFI (2013-2020)
 Size: 63565515981 bytes
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 URL: https://envicloud.wsl.ch/#/?bucket=https%3A%2F%2Fos.zhdk.cloud.switch.ch%2Fenvicloud%2F&prefix=doi%2F1000001.1%2F2020%2F
 Description: Vegetation Height Model of Switzerland for the year 2020 (cloud optimized geotiff)
and Metadata file with information about acquisition date of used images for tiles of 500 x 500 m (geopackage).
description: Resource Title: 2021 Vegetation Height Model NFI (2013,2014,2016-2021)
 Size: 63458141798 bytes
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 URL: https://envicloud.wsl.ch/#/?bucket=https%3A%2F%2Fos.zhdk.cloud.switch.ch%2Fenvicloud%2F&prefix=doi%2F1000001.1%2F2021%2F
 Description: Vegetation Height Model of Switzerland for the year 2021 (cloud optimized geotiff)
and Metadata file with information about acquisition date of used images for tiles of 500 x 500 m (geopackage).
description: Resource Title: 2022 Vegetation Height Model NFI (2017-2022)
 Size: 66035122176 bytes
 Format: No Info
 URL: https://envicloud.wsl.ch/#/?bucket=https%3A%2F%2Fos.zhdk.cloud.switch.ch%2Fenvicloud%2F&prefix=doi%2F1000001.1%2F2022%2F
 Description: Vegetation Height Model of Switzerland for the year 2022 (cloud optimized geotiff)
and Metadata file with information about acquisition date of used images for tiles of 500 x 500 m (geopackage).
description: Resource Title: 2023 Vegetation Height Model NFI (current)
 Size: 60022167962 bytes
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 URL: https://envicloud.wsl.ch/#/?bucket=https%3A%2F%2Fos.zhdk.cloud.switch.ch%2Fenvicloud%2F&prefix=doi%2F1000001.1%2F2023%2F
 Description: Vegetation Height Model of Switzerland for the year 2023 (cloud optimized geotiff)
and Metadata file with information about acquisition date of used images for tiles of 500 x 500 m (geopackage).