Getting Started

This is your window into Theia. Please take a moment to familiarize yourself with some of the initial tools you will use to navigate your way around.

User Interface

Zoom

Using these buttons in the top left corner or the scroll wheel on your mouse, you can zoom in and out of your preferred Area of Interest (AOI).

Workspace

Once you have selected a vessel of interest, this will populate with more options (please see Workspace instructions here).

Coordinates

Hover the cursor over the map to view that location’s latitude and longitude (lat long).

Drop point

Select this and enter a specific lat long, which drops a point at the desired location.

Measure

Select this to measure distances, dimensions, or anything of interest.

Polygon

Select this to draw a polygon around a specific AOI.

Rectangle

Click and drag to highlight an AOI for Automatic Identification Systems (AIS) analysis.

Circle

Click and drag to measure an area from a specific Point of Interest (POI).

Delete

Select this to remove any overlays or measurements you have used.

Polyline Measure

Select this and click on the map to reveal distances and headings between points you choose.

Clear measurements

Removes all polyline measurements that have been created.

Change measurements

Rotates through meters (m), miles (mi), and nautical miles (nm), depending on the required output.

Overview Toggle

Toggle Satellite or Mapping overview

Toggles between satellite or mapping overview

Light Map

Provides a light mapping overview of the globe.

Dark Map

Provides a dark mapping overview of the globe.

Satellite

Provides a satellite imagery overview of the globe.

Navigation Bar

Search bar

Locate a vessel of interest using a ship name, International Maritime Organization (IMO) number, or Maritime Mobile Service Identities (MMSI) number.

Refresh live view

Theia updates the AIS of vessels on a 15-minute basis, so if you have been analyzing old time periods, use this for the latest information.

Data manager date

Rewind time with Theia and click to select a past date and time to analyze.

Documentation

Provides access to the readme guide.

Actions

Allows users to upload their own GEOJSON or CSV files to Theia.

Naming convention for a CSV file so that it loads correctly:

Account

Use this to log out of Theia.

Layers

Various layers within Theia can be toggled on and off with the tick boxes.

Territories

Borders and territorial waters of individual countries.

Ports

Locations of ports.

Infrastructure

Locations of AIS stations.

Submarine Cables

Locations of subsea cables.

Coverage

Shows a footprint of all satellite imagery that Theia has ingested and used for each individual day.

Zoom Levels

Scale bar

View this adaptive scale bar for a quick idea of the scale you’re at; particularly helpful when zoomed in over the water.

Zoom Examples

1. Overview Zoom Level - Clusters of Light, Dark, and Unattributed vessels are visible.

   

2. Medium Zoom Level - Clusters of Light, Dark, and Unattributed vessels are visible.

   

3. Closer Zoom Level - Individual Light, Dark, and Unattributed vessels are visible.