New in 2013

A new version of theSeaDarQ Oil Spill Detection system is now available. The main new features are: - New hardware platform - Automatic Oil Spill Detection - Integrated coastline database

Since Nortek acquired SeaDarQ in 2011 we have improved the system in many different aspects. Here you will find a summary with links to more detailed descriptions.

 

Automatic Spill Detection

For many applications automatic detection of spills is important. We have spent many hours to develop sophisticated processing algorithms that discriminates weak spots in the image from a true oil spill.  The result is a higher detection rate without increasing the number of false alarms.  This allows you to walk away instead of watching the monitor at all times. An example of a well known experiment you can see below. 
 

 

 

State of the Art Processing

An oil spill may not be clearly visible in an original radar image.  It is found within the sea clutter.  The images below show a spill before and after filtering and corrections are applied.   The image to the right details the the spill just above the center of the image and is a result of sea filtering and improved range corrections methods.
 
Version 2 image
Radar image in SeaDarQ prior to image processing; the spill is just above the centre.
Version 3 image
Radar image in SeaDarQ version 3, note the very uniform and distinguishable, white background.
 

 

Coastline Database

A detailed worldwide coastline database is a great help in automatic oil spill detection.  It effectively defines regions to exclude from processing.  It also aids by establishing a buffer near the land that typically has reduced winds.  The result is better spill detection in the direction of the land while this reducing the number of false detects.  The image below on the left shows a radar image with land on the topside. The SeaDarQ software can now overlay the land using the coastline database resulting in a cleaner image.
 
Original radar image with coastline Image with coastline overlay
 
The coastline database resolution is a respectable 10 meters.  Note, in the image below,  the wind shadows along the coast which are neglected from processing with the aid of the coastline Database.
 
 The coastline database is very detailed !


 

Ship Shadow Detection

When vessels are in the field of view of a radar they often cast a "radar shadow" behind them.  These shadows appear much like an oil spill so it is important to detect and neglect these from the automatic oil spill detection.  The latest software has the feature and is one of the many ways it suppresses the number of false detects.
 
 

New Hardware Platform 

The computer and electronics industries move fast. Nortek has kept up with the evolution; this is reflected in the faster computers we use, which have a quick start-up time and improved data acquisition cards. 

24 core industrial computer !!

PC SeaDarQ

Solid State Drive Boot disk

SSD SeaDarQ

New Data Acquisition Cards

Acquisition Card


Wind Sensor Integration

You can connect a Wind sensor with NMEA output to the Computer. The data is displayed and stored.
 
 
SeaDarQ Monitor

Windows 7 and User Interface Changes

The new user interface is intuitive and we thought out for operators.  The display contains all the necessary information and nothing more. Operators do not need to have radar experience in can quickly interpret the information displayed.  The SeaDarQ systems now runs on Windows 7 - 64 bit, but may still be used on Windows XP. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Certifications

Since 2013 Nortek B.V. is ISO certified. SeaDarQ v3 complies now to the NOFO standard for Oil Spill Detection Radars.

 Nortek ISO Certificate 2013 NOFO Statement 2013


 
Related content
File SeaDarQ v3 brochure