Simon Lloyd

Surveying

Summary

Geo-environmental and geoscience field experience spanning geophysical survey design, ground investigation support, multi-technique interpretation, and audit-ready reporting. Strong focus on data quality, clear uncertainty statements, and delivering decision-ready outputs from complex ground datasets.

Survey Types and Methods

• Ground Penetrating Radar (GPR): 200 / 400 MHz surveys for shallow subsurface imaging.
• Electrical Resistivity Tomography (ERT): 64-electrode acquisition and inversion-based interpretation.
• Seismic methods: seismic refraction and MASW for near-surface velocity structure and ground characterisation.
• Electromagnetic conductivity: EM31 surveying for rapid conductivity mapping.
• Magnetic surveying: magnetic gradiometry and magnetic mapping for anomaly identification and subsurface interpretation.

Survey Planning and Quality Control

• Survey design, line planning, and acquisition control to ensure datasets are interpretable and fit for purpose.
• Strong emphasis on QC during acquisition (repeatability checks, noise identification, and field validation).
• Clear documentation of metadata, site constraints, assumptions, and survey limitations.
• Comfortable working in constrained or public environments with safety and procedural discipline.

Processing and Interpretation Tools

• ERT: Res2Inv (working knowledge) for inversion and interpretation.
• Seismic: SeisImager (working knowledge) for refraction and MASW workflows.
• GPR: GPR-Slice and MATGPR (working knowledge) for processing and visualisation.
• Data handling: Python, Excel, and GIS-style figure production for clean outputs and reporting.

Deliverables and Reporting

• Integrated interpretation across multiple techniques to support coherent conceptual ground models.
• Clear limitations statements and uncertainty handling to support decision-making and risk awareness.
• Audit-ready reporting with reproducible processing steps and traceable outputs.
• Strong figure preparation (plans, sections, profiles, and summary visuals).

Transferable Strengths

• Experience operating in safety-critical environments with strong procedural discipline.
• Strong ability to identify inconsistencies in field data and trace issues back to acquisition or processing causes.
• Comfortable coordinating field logistics, schedules, and multi-stage technical workflows.
• Clear communication of technical outcomes to mixed audiences.