Karttur is a private research and development company in Stockholm, Sweden. The company is owned and run by me, Thomas Gumbricht. The main focus is on modelling Earth system processes using a combination of spatial data and Artificial Intelligence (AI). Through its subsidiary, xSpectre, co-owned with some friends, Karttur is also involved in development of state-of-the-art sensing hardware.

Notable achievements

Resumes and resources

Resource Description
Professional portfolio Thomas Gumbricht professional portfolio
GeoImagine data cube Karttur’s in-house Open Source data cube for spatial data processing.
Soil spectral modelling Open source Machine Learning package with instructions.
Watershed modeling Open source package for watershed delineation and hydrological characterization.


The GitHub pages of Karttur are created and maintained by Thomas Gumbricht.