Faster, Better, Cheaper: Solutions to the Atmospheric Shipping Emission Compliance and Attribution Conundrum

Global concerns regarding air quality have over the past decade led to the introduction of regulations by the International Maritime Organisation curbing the emissions of sulphur and nitrogen oxides (SOx, NOx). These limits were implemented initially in so-called “emission control areas”, defined where the density of shipping activity combines...

Multi-sensor information extraction and combination in a large harbor surveillance experiment

Analyzing Vessel Behavior Using Process Mining

In the maritime domain, electronic sensors such as AIS receivers and radars collect large amounts of data about the vessels in a certain geographical area. We investigate the use of process mining techniques for analyzing the behavior of the vessels based on these data. In the context of maritime safety and security, the goal is to support...

Inference of vessel behaviour in the Dutch Coastal North Sea

About one year of coastal AIS (Automatic Identification System) data are analysed for vessel behaviour. The data are obtained from thousands of vessels along the Dutch North Sea coast including the entrance to the main port of Rotterdam. Vessel behaviour is described by a number of basic indicators that can be obtained directly from the AIS...

Ship detection with Envisat's alternating polarization mode

A ship detection algorithm is developed that uses Envisat ASAR imagery in alternating polarisation mode. From airborne data it is shown that of the two co-polarisations, HH is preferred over VV because of a larger ship-to-clutter ratio. Combining the HH and HV images of alternating polarisation mode, it is found that the correlation between the...

AIS in naval environment

From the first of July 2002 the Automatic Identification System (AIS) is introduced as part of the carriage requirements for all ships of 300 CT and larger, falling under the SOLAS convention. An introductory phase is planned to equip these ships with an AIS mobile station. Every ship with AIS, at sea as well as in a VTS environment, will...