SATELLITE INSTRUMENT
VIIRS-DNB
The Visible Infrared Imaging Radiometer Suite (VIIRS) is one of the key instruments onboard the Suomi National Polar-Orbiting Partnership (Suomi NPP) spacecraft, launched on October 28, 2011. It performs moderate resolution imaging with 22 channels, allowing environmental monitoring and weather forecasting. The very high sensitivity of the Day Night Band (DNB) of VIIRS allows global daily measurements of the visible and near-infrared light, in lowlight conditions.

TYPE OF INSTRUMENT
Radiometric imaging sensor

STATUS
Operational

DATA AVAILABILITY
Yes, freely available

TIME RANGE
Since 2012
MORE INFORMATION

CALIBRATED DATA
Yes

MEASUREMENT UNIT
nW/cm^2/sr

WAVELENGTH RANGE
500 – 900 nm

OBSERVED AREA
from -180° to 180° of long. from -65° to +75° of lat.

FIELD-OF-VIEW
3000 km swath

POINTING DIRECTION
Nadir

SPATIAL RESOLUTION
750 m

ORBIT TYPE
Sun-synchronous low alt. polar orbit (830 km alt.)

DATA FORMAT
NetCDF, tgz, png

DATA POLICY
Creative Commons Attribution 4.0
FURTHER REFERENCES
– VIIRS-Land Near Real-Time Data (read the article)
– Comparison between VIIRS-DNB and Globe At Night data (read the article)
– Interactive visualization of VIIRS annual data on Light Pollution Map
– NASA’s Black Marble
– VIIRS Nighttime Light Data from EOG / Earth Observation Group, Colorado School of Mines (read the article)
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