Layers Tab

The Layers Tab controls the base map, live feeds and additional overlays that are visible on the shared map.

Base Layers Section

Base Layers

This is a list of base layers that are available at the current map extents and zoom level. This list of base layers will automatically change as the map is moved around. The base layers available to your organisation is controlled by the organisation configuration.

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Base Layer Brightness

The brightness slider changes the base layer brightness on the map. This can be used to improve the contrast between features and the base layer if required.

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Live Feeds Section

Live feeds refer to data that is sourced from external sources. These feeds are read-only and cannot be edited. The live feeds that are available to an organisation is controlled by the configuration. A complete list of available feeds can be found in the Live Feeds page in the Portal Home Page.

This section contains the list of live feeds that are available for the current map extents and zoom level. This list of live feeds in this section will automatically change as the map is moved around and zoomed in/out depending on the availability of the live feed data in the current map extents.

Click a live feed to show/hide it on the map.

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Overlays Section

The list of available grid layers will depend on the current map extents. Click a grid overlay to show/hide it on the map. Please note that selecting a grid overlay will automatically turn off any other grid layer that are currently turned on. It is not possible to have more than one grid layer turned on at a time.

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UTM Grid Overlay

This UTM grid is used by most emergency services for ground operations, since all grid squares are in metres (easting/northing) and thus relatively easy to work with. This grid is the same grid used for topographic maps in Australia and USA.

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NZTM Grid Overlay

The NZTM grid is used by emergency services in New Zealand as a preferred grid instead of using UTM. This is the same grid that is used by the NZ Topo250 and NZ Topo25 base layers. It is available to all users when using maps for NZ.

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Lat/Lng Grid Overlay

The Latitude/Longitude grid is used by emergency services, mostly for aircraft operations. It is better suited for working over long distances due to the curvature of the earth.

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Ground and Air Tracks

Displays recent location tracks heatmap for personnel and appliances, or aircraft. This is useful for seeing how personnel are accessing an incident (such as what trails are in use, how are appliances getting around a fences at an incident). There is significant delay for the tracks overlay.

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Hotspots Overlay

The hotspots overlay consists of satellite detected hotspots from MODIS, VIIRS and Himawari-8 satellite. These satellites provide a snapshot of large fire activity when the satellite passes overhead. The color of the dots is determined by age, recent fire activity is displayed as red, then orange, yellow and black. Older hotspot activity will fade away after 7 days.

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Feature Scale

This slider determines the size of the map features on the screen. You can use this slider to make the map features larger, which is useful when using the FireMapper Portal on large screens or when conducting incident briefings.

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