Key Terms
SeaVision Tools
Vessel Data Card
Data Sources
Layers and Map Views
Wild Card
100

This is the original purpose of AIS

Collision avoidance

100

This tool allows you to create a running "notification" when certain criteria is "triggered"

Alerts

100

Toggling this can show a ship's past movements

History Trail

100

Automatic position reporting system that uses transponders on ships and is used by vessel traffic services (VTS).  This is the "backbone" of the vessel data available in SeaVision.

Automatic identification system (A.I.S.)



100

When enabled, this layer will display the time passed since a vessel has been detected

Vessel Age

100

This feature of SeaVision allows a user to change what type of vessels appear on screen

Map Filter

200

This term refers to the function that allows SeaVision users to communicate with each other

Chat

200

This tool allows a user to create an ad-hoc query of vessels matching specified criteria.

Search

200

Along with history trail, name the option that has been toggled here

Speed Indicator

200

This sensor identifies and collects visible / artifical light at night.

Visible Infrared Imaging Radiometer Suite (VIIRS)



200


What is the Static Layer shown here?

AIS Vessels Summary

200

The tool seen here is called:

Ports

300

A 5 character code used to identify major trade and transport hubs, such as seaports

UN/LOCODE



300

Name the tool seen here

Distance Tool

300

This 7 digit number is a unique, permanent identifier for sea-going vessels and can be found on the vessel data card

IMO Number

300

This satellite based sensor provides digital images captured by sensors that detect visible, near-infrared, and short-wave infrared light reflected from Earth's surface.

Electro-optical

300

What layer has been enabled here?

Vessel Name

300

Based on this image, what would this vessels warning level be classified as?

Medium

400

All areas and things of, on, under, relating to, adjacent to, or bordering on a sea, ocean, or other navigable waterway. Includes all maritime-related activities, infrastructure, people, cargo, vessels, and other conveyances

Maritime Domain

400

Using this tool, users can create a vessel search that runs twice a day for vessels matching specified criteria

Rules

400

What would a user need to toggle on the vessel data card to show what is shown here in this image?

Dead Reckoning Vector

400

This satellite based sensor creates images of objects by emitting microwave pulses and measuring the backscattered signal; operates in all weather conditions, day or night.

Synthetic Aperture Radar (SAR)

400

This Map view is data intensive but offers a "top-down" detailed image of the Earth's surface to include surface features and buildings.

Satellite (or Hybrid) view

400

This document contains relevant information about the SeaVision application, is available in Bengali, and can be referenced for detailed instructions on SeaVision features and tools.

The System User Manual or SUM

500

This is the sea zone extending up to 200 nautical miles from a nation's coast.  The nation holds special sovereign rights to explore, exploit, conserve, and manage natural resources - such as fish, oil, gas, and renewable energy - within this area.

Exclusive Economic Zone

500

Name the tool seen here

Time Machine / Playback

500

What are the three machine-generated pieces of an AIS position report?

Position (lat/lon), heading, time.

500

Name the three main methods of AIS data *collection* (meaning, where is the data received)

Terrestrial (on land), satellite, dynamic.

500

Using the tool seen here, a user can create what?

Custom user views

500

What is the UNLOCODE for the port of Chittagong?

BDCGP

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