Tom Hengl (OpenGeoHub)
Tom Hengl is director at OpenGeoHub. He has backgrounds in pedometrics, environmetrics and spatial data science. Tom is the PI of the OEMC project.
Sessions
The workshop will provide instructions on how to access and use OpenLandMap-soildb: a global 30-m spatial resolution dynamic soil database showing distribution of soil carbon, soil pH, soil texture fractions, bulk density and soil types (USDA subgroups); soil carbon, pH are modeled as dynamic soil properties with 5--year interval; soil texture fractions, bulk density and soil type as static variables. This is the first 30-m dynamic soildb with properties mapped through depth (0-30, 30-60, 60-100) and time. Two tutorials will be provided: (1) in R, and (2) in python. In both tutorials we will show how to list available layers, retrieve values per point or polygon and how to correctly use and interpret the values. The OpenLandMap-soildb data is available from https://stac.openlandmap.org. The tutorials will be made available via https://github.com/openlandmap/soildb.
OpenLandMap-soildb (https://doi.org/10.5194/essd-2025-336) contains global dynamic predictions of soil organic carbon content, soil organic carbon density, bulk density, soil pH in H2O, soil texture fractions (clay, sand and slit) and USDA subgroup soil types (USDA soil taxonomy subgroups) at 30 m spatial resolution based on spatiotemporal Machine Learning (Quantile Regression Random Forest with output predictions showing the mean plus the lower and upper prediction intervals of 68 % probability). Predictions are provided at 3 standard depth intervals 0-30, 30-60 and 60-100 cm and for 5-year intervals. Data is available via STAC.OpenLandMap.org and via Google Earth Engine under the CC-BY license. This is the first ever global 30-m spatial resolution soildb that can be used to serve various land monitoring projects and was specifically created to support the UNCCD's Land Degradation Neutrality programme and similar international programmes where focus is on improving soil health, increasing SOC and decreasing soil degradation (soil erosion, loss of soil biodiversity, compaction, salinization and similar).
The OEMC project in a nutshell by the project coordinator, Tom Hengl, Director of Opengeohub Foundation