Aarhus Universitets segl

Advancing Soil Moisture Monitoring: A Hybrid Approach with Cosmic-ray Neutron Sensor, Remote Sensing and Machine Learning

Main subject area: Climate change and agriculture

Short project description

Soil moisture is crucial in regulating agricultural productivity and greenhouse gas emissions from croplands. Understanding its spatial and temporal variations in croplands is essential for optimizing water resources management. However, obtaining accurate and high-resolution soil moisture data remains a challenge due to the limitations of traditional point-scale measurements.

This master thesis project is a part of the SMART FIELD project (https://land-craft.dk/research/publications/projects-we-are-participating-in/smartfield) and the Digital Twin for Climate Smart Agriculture project (https://villumfonden.dk/en/projekt/digital-twin-climate-smart-agriculture-unraveling-environment-and-management-effects-field). We will use the cosmic-ray neutron sensor (CRNS) to acquire soil moisture at high spatial resolution for croplands in Denmark. Furthermore, we will develop a machine-learning method for soil moisture estimation by using multi-source remote sensing data. Ultimately, this project will provide a novel approach for high-resolution soil moisture mapping in croplands, improving our understanding of soil moisture dynamics and supporting precision agriculture management.

Department and supervisor

Project start

Any time

Physical location of project and students work

Land-CRAFT, Building 1171, Ole Worms Allé 3, 8000 Aarhus

Extent and type of project

45 ECTS: Experimental theses in which the student is responsible for the collection and analysis of his/her own original data

60 ECTS: Experimental theses in which the student is responsible for planning, trial design and collection and analysis of his/her own original data

Additional information

Bogena, H., Schrön, M., Jakobi, J., Ney, P., Zacharias, S., Andreasen, M., Baatz, R., Boorman, D., Duygu, B.M., Eguibar-Galán, M.A. and Fersch, B., 2021. COSMOS-Europe: a European network of cosmic-ray neutron soil moisture sensors. Earth System Science Data, 2021, pp.1-33.

Wang, S., Garcia, M., Ibrom, A. and Bauer-Gottwein, P., 2020. Temporal interpolation of land surface fluxes derived from remote sensing–results with an unmanned aerial system. Hydrology and Earth System Sciences, 24(7), pp.3643-3661.