DOI: 10.5281/zenodo.12608805
title: High Resolution 30m Land Surface Parameters for Europe

description: General Description

The High Resolution 30m Land Surface Parameters for Europe  dataset is derived from Global Ensemble DTM. Data is computed using GRASS GIS and SAGA GIS. Original DTM data is in projection EPSG:4326, and reprojects to Equi7 (EPSG:27704), computes the parameters, and eventually reprojects to EPSG:3035. High resolution layers are computed in tiles. In order to eliminate boundary effects and reprojection resampling, Below is the list of land-surface parameters. Hillshade and Slope in degree are available to download through this resporitory, others are available to access from public S3 server. All files are in COG.

slope in degree (slope): steepness at each cell



S3 path: https://s3.eu-central-1.wasabisys.com/arco/slope_edtm_m_30m_s_20000101_20221231_eu_epsg.3035_v20240528.tif


hillshade: visualizing of terrain determined by a light source and the slope and aspect of the elevation surface



S3 path: https://s3.eu-central-1.wasabisys.com/arco/hillshade_edtm_m_30m_s_20000101_20221231_eu_epsg.3035_v20240528.tif


minimum curvature (minic): valleys in negative value and local convex landform in positive value



S3 path: https://s3.eu-central-1.wasabisys.com/arco/minic_edtm_m_30m_s_20000101_20221231_eu_epsg.3035_v20240528.tif


maximum curvature (maxic): ridges in positive values and local concave landform in negative value



S3 path: https://s3.eu-central-1.wasabisys.com/arco/maxic_edtm_m_30m_s_20000101_20221231_eu_epsg.3035_v20240528.tif


positive openness (pos.openness):  the "dominance" of an elevated location over its surroundings



S3 path: https://s3.eu-central-1.wasabisys.com/arco/pos.openness_edtm_m_30m_s_20000101_20221231_eu_epsg.3035_v20240528.tif


negative openness (neg.openness): the "enclosure" of a lower location by elevated surroundings



S3 path: https://s3.eu-central-1.wasabisys.com/arco/neg.openness_edtm_m_30m_s_20000101_20221231_eu_epsg.3035_v20240528.tif


Data Details



Time period: January 2000 – December 2022

Type of data: Land surface parameters of geomorphometry

How the data was collected or derived: Derived from Global Ensemble DTM in 30m using GRASS GIS and SAGA GIS running in a local HPC.

Coordinate reference system: EPSG:3035

Bounding box (Xmin, Ymin, Xmax, Ymax): (900000 899000 7401000 5501000)

Spatial resolution: 30m

Image size: 216700, 153400

File format: Cloud Optimized Geotiff (COG) format.


Support

If you discover a bug, artifact, or inconsistency, or if you have a question please raise a GitHub issue: https://github.com/AI4SoilHealth/SoilHealthDataCube/issues

Name convention

To ensure consistency and ease of use across and within the projects, we follow the standard Open-Earth-Monitor file-naming convention. The convention works with 10 fields that describes important properties of the data. In this way users can search files, prepare data analysis etc, without needing to open files. The fields are:



generic variable name: slope = slope in degree

variable procedure combination: edtm = Ensemble digital terrain model

Position in the probability distribution / variable type: m = measurement

Spatial support: 30m

Depth reference: s = surface

Time reference begin time: 20000101 = 2000-01-01

Time reference end time: 20221231 = 2022-12-31

Bounding box: eu = Europe

EPSG code: epsg.3035 = EPSG:3035

Version code: v20240528 = 2024-05-28 (creation date)