Reach Subsea develops and maintains a suite of hydrographic quality-control tools used across our global survey operations. As part of our commitment to industry capability, we make a selection of these tools available at no cost.
Browser-based applications from our internal quality-control library. No installation or licence required.
Compute apriori THU and TVU for your multibeam survey configuration. Select sensors, set parameters, and validate against IHO standards — all in one step.
→Upload a .pos file to compute hydroidal separation. Extracts tidal signal from wave motion with automatic regression against bottom-mounted tide gauge data.
→Assess weather downtime using the NOAA WorldWave3 database. Input vessel working limits and project location to model operational windows.
→Compute and visualise vessel sensor offsets in a standardised, repeatable workflow. Ensure lever arm measurements are consistent across your fleet.
→Quality-control your tide gauge observations with automated spike detection, gap analysis and visual time-series review.
A global subsea services company listed on the Oslo Stock Exchange (OSE: REACH).
Reach Subsea is a global subsea services company headquartered in Haugesund, Norway, listed on the Oslo Stock Exchange. Our survey division delivers hydrographic, geophysical, and environmental programmes across the energy, telecommunications, and government sectors worldwide.
We treat quality control as a core discipline, not an afterthought. Our teams develop purpose-built tools for uncertainty computation, data processing, environmental analysis, and compliance verification. The applications available on this site represent a selection of that capability — the same methods and standards we apply to every project we undertake.
By making these tools openly available, we aim to contribute to industry-wide consistency in how quality is measured, documented, and communicated. We welcome feedback and collaboration from all users.
reachsubsea.no →Validate sensor configurations against IHO standards during tender response and survey planning.
Evaluate survey proposals with independent, quality-assured uncertainty computations and RFQ documentation.
Strengthen research methodology with industry-standard uncertainty propagation and repeatable workflows.
Verify survey data quality with transparent, auditable calculations aligned to international standards.
For sensor additions, configuration questions, or to discuss how Reach Subsea can support your next survey programme.