sigma S6 Oil Spill Detection and Monitoring System

Independently tested, globally trusted

With exploration and drilling moving further and further into uncharted territory, the need for responsible operations has never been greater. In fact, the world demands it. 

Even the best response plans are only as good as the information available. The kind that proves invaluable when it comes to protecting your assets, your people, and the environment.  
Increasingly, the world relies on Rutter sigma S6 technology to deliver early, accurate oil spill detection and reporting. 

Protecting Assets Globally

Answer the demand for accurate oil spill detection and reporting with Rutter’s sigma S6 Oil Spill Detection (OSD) System.

Rutter’s OSD System is industry-specified and provides the data portability needed for sharing information in real-time with spill response teams, management, and other key stakeholders, protecting offshore, onshore, and corporate assets around the world.

It combines proven strength in early detection with tools that generate essential information about oil spill volume, thickness, deformation and drift.

The World Relies on Rutter

Since introducing its OSD System in 2009, Rutter has established an extensive reference list. sigma S6 systems are installed on fixed platforms, FPSOs, offshore workboats, patrol vessels, and specialty clean-up vessels. Installations include Brazil, the North Sea, Gulf of Mexico, Eastern Canada, China, and Russia. For northern drilling operations, Rutter’s OSD System has been integrated with sigma S6 Ice Navigator to provide simultaneous oil and ice detection and tracking capabilities on one display.

As one of the first companies to develop radar-based oil spill detection technology, Rutter’s OSD System has been extensively tested and proven to be effective in independent trials conducted by the Norwegian Clean Seas Association for Operating Companies (NOFO).

product Features



    sigma S6 OSD System permits the user to set parameters which mitigate the occurrence of false positive spill detections. Users can select regions of the scan area to not consider based on known anomalies, and can also prescribe specific ranges or distances from the scanner to exclude for detection. Minimum alarm thresholds can also be set.




    When the system alarms, the operator can either acknowledge that alarm or cancel it based on their ability to validate the anomaly as oil. When the alarm is acknowledged, the anomaly is treated as a spill. It is automatically outlined and a vector is displayed. Historical spill outlines are maintained and displayed, revealing drift and dispersion information.



    Integration and control of EO/IR cameras is facilitated through the sigma S6 user interface. Features include the ability to support multiple cameras, intelligent selection of a best camera view for specific spills or targets, and automatic slewing to a spill alarm area for prompt verification. Cameras will automatically track a spill as it moves and disperses.




    Rutter can supply a vertically polarized antenna for use where conditions or jurisdictions require the installation of a dedicated X-band (VV) oil spill detection radar. The sigma S6 OSD System connects to the Rutter Radar-100S6 radar with vertically polarized antenna in a master configuration and gives the operator full control over this radar.


    sigma S6 CONNECT

     Web-enabled interface allows external systems, such as Google Earth Pro and GIS platforms, to integrate with the sigma S6 Oil Spill Detection System to display radar imaging, oil targets, outlines, and drift information.



    sigma S6 Oil Spill Detection can export ESRI outlines to VTMS and tactical spill response systems as visual overlays. Screen captures can be exported to system folders for remote display, and full sigma S6 data can be shared by networked Remote Clients, or with bespoke information systems via the sigma S6 programming interface.



    Coastline Masks provide automatic masking of land areas using a global database and permits the masking of radar shadows to enhance the detection of oil spills, eliminating many false detections.





    As thicker areas of a spill dampen more of the radar signal, thickness can be inferred and highlighted for more efficient clean up. Modeled after the AMSA Oil Spill Monitoring Handbook method, user-entered thickness values are paired in the system with the auto-calculated area information to provide an inferred oil volume. This information enables operators to determine if a growing spill area is related to increasing oil volume or dispersion.

Installations By Country



Rutters sigma S6 technology connects to most commercially available marine radars enabling our customers to extract additional value and effectiveness from their existing navigation radar assets. Should your requirements demand it, we supply the option to provide a dedicated high performance radar solution as an input sensor. As with all of Rutters sigma S6 product lines, Ice Navigator™ can be combined with any of our other systems to meet your needs: Small Target Surveillance, SeaFusion Data Integration, Oil Spill Detection and the WaMoS® II Wave and Current Monitoring systems offered by OceanWaveS GmbH.

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Rutter Oil Spill Detection Systems


  • Automatic Spill Detection and Outlining
    Oil Spill Tracking (Direction and Speed)
    Manual Area Outlining
    Oil Spill Volumetric Calculations
    Screen Capture and Video Recording
    Motion Compensation
    Multiple Remote Clients
    ESRI Shapefile Output (Used for GIS Input)
    Cursor Serial Port Output (For IR Camera Input)
    TTM NMEA Serial Port Outputs (For IR Camera and ECDIS Inputs)
    sigma S6 Connect
    Coastline Masking


  • Raw Data Recording
    SeaBridge - Multiple Client - Low Bandwith Communication Link
    SeaFusion - Multiple Radar - Single Display
    Vertically Polarized Antenna Radar (VV)
Note: All models accept standard serial/network inputs from navigational instruments (NMEA 0183) including: AIS, wind anemometer, echo sounder, GPS, and gyro compass.