EIVA NaviModel Analyser 4.11.0: Advanced Analysis and Reporting Module for Marine Survey Data

EIVA NaviModel Analyser 4.11.0 is a specialized analysis and reporting module within the EIVA NaviModel software suite. It is designed for engineers, surveyors, and geoscientists to perform quantitative analysis, generate reports, and create visualizations from processed marine survey data, including bathymetry, side-scan sonar, and sub-bottom profiler data.

Core Philosophy: From Processed Data to Actionable Insights

While the core NaviModel software is for data processing, editing, and basic visualization, the Analyser module adds powerful analytical and reporting capabilities. It is the tool used to answer specific engineering and commercial questions, such as "How much sediment needs to be dredged?" or "Has the pipeline been adequately buried?"

Key Features & Capabilities in NaviModel Analyser 4.11.0

1. Volume Calculation and Cut/Fill Analysis

• Dredging Volume Analysis: Calculate sediment volumes between two surfaces (e.g., pre-dredge vs. design surface, or pre-dredge vs. post-dredge). This is its most critical application for dredging contractors and port authorities.

• Borrow Pit & Backfill Analysis: Model and calculate volumes for offshore sand borrow pits or pipeline trench backfill material.

• Advanced Surface Comparison: Use difference models (DTM of Differences) to visualize and quantify seabed change over time, whether from natural processes or construction activities.

2. Profile, Cross-Section, and Contouring

• Dynamic Profile Extraction: Create precise depth profiles along any user-defined line (e.g., along a pipeline route, across a trench, or for a cable crossing).

• Cross-Section Generation: Generate detailed cross-sections from bathymetric data and sub-bottom profiler data simultaneously, providing a combined view of the seabed surface and shallow geology.

• Professional Contouring: Create smooth, publication-quality depth contours according to international charting standards.

3. Pipeline and Cable Inspection Analysis

• Pipeline Free Span Analysis: Automatically detect and calculate the length and height of pipeline free spans from high-resolution bathymetry.

• Trench Depth & Width Measurement: Measure the as-built dimensions of subsea trenches for cables or pipelines form www.dwcrk.com.

• Pipe Exposure Analysis: Determine the percentage of a pipeline exposed above the seabed.

4. Advanced Reporting and Charting

• Automated Report Generation: Create standardized, templated reports that integrate calculated volumes, profiles, cross-sections, and maps directly into a single PDF or CAD deliverable.

• Chart/Map Production: Tools for creating final survey charts and maps with scale bars, legends, and survey metadata, suitable for inclusion in client reports.

• Data Export Flexibility: Export analysis results, profiles, and volumes to formats like DXF, SHP, CSV, and LandXML for use in CAD, GIS, and other engineering software.