Ephemeral Map Layers

Definition

Ephemeral Map Layers are temporary GIS layers that represent time-sensitive, short-duration phenomena like wildfires, floods, construction zones, or event routes. They support real-time decision-making and are typically removed or archived once the event concludes.

Application

Emergency teams add ephemeral layers to display evacuation zones. Cities publish temporary road closures or festival boundaries. These layers often rely on live feeds and mobile mapping. GIS platforms enable quick creation and sharing of ephemeral content for situational awareness.

FAQ

Why use ephemeral layers?

To represent short-lived events that impact planning, safety, or mobility.

How are they created?

Through manual digitization, field apps, or API feeds from monitoring systems.

Where are they used?

Disaster response, traffic management, construction, and public event planning.

How are they managed?

Via temporary GIS layers, map services, or version-controlled databases.