Worldview Snapshots: What are the Overlay Layers?
Posted: Fri Feb 23, 2024 11:18 am America/New_York
Fires
When you select Fires as your overlay layer, it will match the corresponding fire layer to the base layer you have picked. These are available approximately 3 hours after satellite observation.
Coastlines
The Coastlines layer is a vector layer displaying global coastlines. Coastlines information are gleaned from OpenStreetMap.
Coastlines, Borders and Roads
The Coastlines/Borders/Roads layer is a vector layer displaying global coastlines, country borders, first order administrative boundaries and major roads. Coastlines/Borders/Roads information are gleaned from OpenStreetMap and Natural Earth.
When you select Fires as your overlay layer, it will match the corresponding fire layer to the base layer you have picked. These are available approximately 3 hours after satellite observation.
- Terra/MODIS Corrected Reflectance layers: Terra/MODIS Fires and Thermal Anomalies (Day and Night) layer (8 May 2012 - present)
- Aqua/MODIS Corrected Reflectance layers: Aqua/MODIS Fires and Thermal Anomalies (Day and Night) layer (8 May 2012 - present)
- Suomi-NPP/VIIRS Corrected Reflectance layers: Suomi-NPP/VIIRS Fires and Thermal Anomalies (Day) layer (25 November 2015 - present)
- Suomi NPP, VIIRS, Black Marble Nighttime At Sensor Radiance (Day/Night Band): Suomi-NPP/VIIRS Fires and Thermal Anomalies (Night) layer (18 November 2020 - Present)
- Suomi NPP, VIIRS, Black Marble Nighttime Blue/Yellow Composite (Day/Night Band): Suomi-NPP/VIIRS Fires and Thermal Anomalies (Night) layer (30 April 2021 - present)
- Suomi-NPP/VIIRS Day/Night Band, ENCC: Suomi-NPP/VIIRS Fires and Thermal Anomalies (Night) layer (25 November 2015 - present)
- NOAA-20/VIIRS Corrected Reflectance layers: NOAA-20/VIIRS Fires and Thermal Anomalies (Day) layer (24 April 2020 - present)
Coastlines
The Coastlines layer is a vector layer displaying global coastlines. Coastlines information are gleaned from OpenStreetMap.
Coastlines, Borders and Roads
The Coastlines/Borders/Roads layer is a vector layer displaying global coastlines, country borders, first order administrative boundaries and major roads. Coastlines/Borders/Roads information are gleaned from OpenStreetMap and Natural Earth.