How automatic identification system (AIS) antenna setup affects AIS signal quality

Hering-Bertram, Martin; Linsen, Lars

doi:10.1016/j.oceaneng.2015.03.017

Cited by 42 publications

(11 citation statements)

References 8 publications

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“…The AIS data is mostly used to exchange information between the vessels and AIS base stations (Last et al 2015). The IMO requires an AIS device to be installed aboard international voyaging ships greater than 300 gross tons (GT) and passenger ships of all sizes (Fan et al 2016).…”

Section: Data Sourcesmentioning

confidence: 99%

National- to port-level inventories of shipping emissions in China

Liu

Jin

et al. 2017

Environ. Res. Lett.

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Shipping in China plays a global role, and has led worldwide maritime transportation for the last decade. However, without taking national or local port boundaries into account, it is impossible to determine the responsibility that each local authority has on emission controls, nor compare them with land-based emissions to determine the priority for controlling these emissions. In this study, we provide national-to port-level inventories for China. The results show that in 2013, the total emissions of CO, non-methane volatile organic compounds (NMVOCs), nitrogen oxides (NO x ), particulate matter (PM), SO 2 and CO 2 were 0.0741 ± 0.0004 Tg⋅yr −1 , 0.0691 ± 0.0004 Tg⋅yr −1 , 1.91 ± 0.01 Tg⋅yr −1 , 0.164 ± 0.001 Tg⋅yr −1 , 1.30 ± 0.01 Tg⋅yr −1 and 86.3 ± 0.3 Tg⋅yr −1 in China, respectively. By providing high-resolution spatial distribution maps of these emissions, we identify three hotspots, centered on the Bohai Rim Area, the Yangtze River Delta and Pearl River Delta. These three hotspots account for 8% of the ocean area evaluated in this study, but contribute around 37% of total shipping emissions. Compared with on-road mobile source emissions, NO x and PM emissions from ships are equivalent to about 34% and 29% of the total mobile vehicle emissions in China. Moreover, this study provides detailed emission inventories for 24 ports in the country, which also greatly contributes to our understanding of global shipping emissions, given that eight of these ports rank within the top twenty of the port league table. Several ports in China suffer emissions 12-147 times higher than those at Los Angeles port. The ports of Ningbo-Zhou Shan, Shanghai, Hong Kong and Dalian dominate the port-level inventories, with individual emissions accounting for 28%-31%, 10%-14%, 10%-12% and 8%-14% of total emissions, respectively.

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Section: Data Sourcesmentioning

confidence: 99%

National- to port-level inventories of shipping emissions in China

Liu

Jin

et al. 2017

Environ. Res. Lett.

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“…As an information exchange platform between vessels and shore organisations, it contains, amongst other, time-dependent data about the location, speed, course and navigational status of vessels. While AIS data quality has been mediocre in its early implementation years (Graveson, 2004), the quality has improved significantly in recent years (Felski and Jaskolski, 2013;Felski et al, 2015), and further improvements are possible with proper antenna installation (Last et al, 2015). AIS data has been used for diverse purposes such as studying collision avoidance manoeuvers (Mou et al, 2010), delineating empirical ship domains (Hansen et al, 2013;Krzysztof and Gucma, 2012), studying navigational traffic patterns (Xiao et al, 2015), accident investigation , many maritime risk analysis methods Özbaş, 2013;Goerlandt and Montewka, 2015b;Mazaheri et al, 2014;Gucma et al, 2012) and models predicting ship performance in ice .…”

Section: Uses Of Ais Data In Maritime Transportation Researchmentioning

confidence: 99%

A method for detecting possible near miss ship collisions from AIS data

et al. 2015

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“…This model incorporated spatial data from Electronic Navigation Charts (ENC) and used Geographic Information System (GIS) data together with collision regulations to develop decision support system able to cope with multiple targets and geographical obstacles when proposing a route to the user. Zhang et al (2015Zhang et al ( , 2016 developed an approach for detecting potential near misses based on AIS data and also explored the limits of such approach (Last et al 2015). Sang et al (2015) considered inland waterway ship trajectories based on the AIS collected data in order to verify manoeuvring characteristics and ship-handling behaviours.…”

Section: Review and Fundamentalsmentioning

confidence: 99%

Early Detection of Vessel Collision Situations in a Vessel Traffic Services Area

et al. 2019

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This study presents enhanced collision detection model in a Vessel Traffic Services (VTS) area. The proposed detection method of collision situations is based on the assumption that VTS station is provided with passage plans of all the vessels in a monitored area. By using an early detection model for prediction of possible collision situations, VTS stations could switch from the area-monitoring concept to the passage-monitoring system. An early detection model of collision risks in a VTS area uses vessels’ dynamic characteristics as inputs (vessels’ position, course over ground and speed), and delivers prediction of their future positions as output. In order to achieve the desired accuracy, the model takes into the account the intended course alterations and the impending environmental loads. The model is able to provide the outputs as early as the passage plans are submitted to a VTS monitored area. Hence, when discussing model’s capability for early detection of collision situations, improved VTS operating standards could be developed in order to achieve safer passages through enhanced collision avoidance strategies. Simulation results clearly show the advantages of the proposed model as a decision support tool for a VTS operator when combining passage plans with the analysis of environmental loads.

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How automatic identification system (AIS) antenna setup affects AIS signal quality

Cited by 42 publications

References 8 publications

National- to port-level inventories of shipping emissions in China

National- to port-level inventories of shipping emissions in China

A method for detecting possible near miss ship collisions from AIS data

Early Detection of Vessel Collision Situations in a Vessel Traffic Services Area

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