InSAR, clay shrink-swell, subsidence and ground motion
[‘fĩ:v] — “movement” in Breton
Understand mechanisms. Quantify dynamics. Decide.
Clay shrink-swell, subsidence and slow instabilities are dynamic, evolving processes that cannot be fully understood from a static map.
I combine radar, optical, geological and climate data to integrate time into ground-risk analysis and produce actionable diagnostics: risk maps, decision-ready indicators and dynamic territorial interpretation.
Expert & legal
Public authorities
Infrastructure
Real estate assets
A territory, a building portfolio, an infrastructure network or a dataset to analyse?
about
Nicolas Le Corvec
independent geoscientist, founder of fiñv
I am a geologist and remote-sensing data scientist working at the interface between physical process understanding, territorial analysis and advanced use of spatial data.
My approach is multiparametric: InSAR radar, optical data, geology, climate and territorial context. The goal is not to produce another map, but to quantify change, qualify uncertainty and support decision-making.
services
Measurement
- Quantification of millimetric ground motion
- Multi-temporal analysis: trends, seasonality, breaks
- Spatial indicators from municipal to parcel scale
- Uncertainty and interpretation limits
Interpretation
- Geotechnical and hydro-climatic interpretation
- Multiparametric integration: radar, optical, geology, climate
- Sensitive area detection and signal typologies
- Decision-oriented analysis, not just descriptive
Decision
- Operational maps and prioritisation indicators
- Action-oriented diagnostics at multiple scales
- Exploratory studies and proof-of-concepts
- Reproducible deliverables: methods, scripts, documentation
Transfer
- Integration into GIS and existing workflows
- R&D project structuring: data, protocol, deliverables
- Training and stakeholder enablement
- Support for adopting indicators and their limits
knowledge
Understand soils before mapping risks.
Ground motion is not just a colour on a map. It results from geological history, mineralogy, water exchanges, drought, vegetation, urbanisation and slow dynamics through time.