VIIRS

Overview

VIIRS, a scanning radiometer, collects visible and infrared imagery and radiometric measurements of the land, atmosphere, cryosphere, and oceans. VIIRS data is used to measure cloud and aerosol properties, ocean color, sea and land surface temperature, ice motion and temperature, fires, and Earth's albedo. Climatologists use VIIRS data to improve our understanding of global climate change.

  • Mass: Approximately 275 kilograms
  • Average Power: 200 Watts
  • Development Institutions: Raytheon Company
  • Purpose: To collect measurements of clouds, aerosols, ocean color, surface temperature, fires, and albedo.

Learn more: https://jointmission.gsfc.nasa.gov/viirs.html

S-NPP/VIIRS Active Fire Algorithm

Active Fire Validation effort in South Africa

Active Fire Validation effort in South Africa

The NASA Suomi-NPP VIIRS Active Fire product suite builds on the MODIS Fire and Thermal Anomalies algorithm (MOD14/MYD14), systematically mapping global fire activity at ≤12 h intervals (~1:30am/pm local overpass times). Two VIIRS active fire products are generated independently using the available 750 m and 375 m resolution data. The 750 m fire product is a replica of the MODIS Collection 6 algorithm, which was adapted to VIIRS channels M5, M7, M11, M13, M15, M16. The product comprises active fire detection and characterization (fire radiative power [FRP]) over land and water (e.g., gas flares). The 750 m product, most importantly, provides continuity with the Earth Observing System (EOS) Moderate Resolution Imaging Spectroradiometer (MODIS) 1 km product.

Learn more: https://viirsland.gsfc.nasa.gov/Products/NASA/FireESDR.html

Latest Updates

September 6, 2019
The Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP satellite captured this nighttime composite image as the storm approached the coast at 3:42 a.m. Eastern Time (07:42 UTC) on September 5, 2019.  Credit: NASA Earth Observatory
The Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP satellite captured this nighttime composite image as the storm approached the coast at 3:42 a.m. Eastern Time (07:42 UTC) on September 5, 2019.  Credit: NASA Earth Observatory After devastating the Bahamas and grazing Florida and Georgia, Hurricane Dorian rebounded and raked the coast of South Carolina with strong winds, heavy rains, and a storm surge. Wind, falling trees, and flooding damaged power infrastructure...
July 25, 2019
Screenshot of the IMERG Alaska wildfires visualization.
NASA’s satellite-based estimates of global precipitation can provide valuable information to officials monitoring the many wildfires that have been scorching Alaska this summer. Although wildfires regularly occur every Alaskan summer, July 2019 proved a particularly active month. Few rain gauges exist in the remote expanses of Alaskan wilderness, but wildfires unchecked can spread to populated areas within the state. Satellite-based precipitation estimates are therefore particularly valuable because of precipitation's relationship to wildfire hazard. The embedded video, above, shows data...
September 29, 2017
Map showing power outages in Puerto Rico
After Hurricane Maria tore across Puerto Rico, it quickly became clear that the destruction would pose daunting challenges for first responders. Most of the electric power grid and telecommunications network was knocked offline. Flooding, downed trees, and toppled power lines made many roads impassable. In circumstances like this, quickly knowing where the power is out—and how long it has been out—allows first responders to better deploy rescue and repair crews and to distribute life-saving supplies. And that...
May 8, 2019
VIIRS Black Marble imagery of nighttime lights in Bhubaneswar India, comparing April 30th and May 5th 2019. Credit: NASA Earth Observatory, Ranjay Shrestha / NASA GSFC
This interactive GIS map from the NASA Disasters Mapping portal lets you view Suomi NPP VIIRS "Black Marble" imagery before and after Cyclone Fani hit the region. This data helps disaster responders track which regions were affected by power outages.  VIIRS Black Marble imagery of nighttime lights in Bhubaneswar India, comparing April 30th and May 5th 2019. Credit: NASA Earth Observatory, Ranjay Shrestha / NASA GSFC In early May...
November 10, 2018
Images showing smoke plume data from California Wildfires
The recent catastrophic fires in California have yielded scenes of chaos in the region and the NASA Disasters program is working on providing the most recent satellite information that could help people on the ground. Dispersed smoke through the region has serious impacts on air quality and satellite information can bring several perspectives of smoke layers that are released into the atmosphere. Two satellites, the NASA/NOAA Suomi National Polar-orbiting Partnership, or...
November 14, 2018
November 12th, 2018 VIIRS Near Real-Time Fires and Thermal Anomalies product from NASA LANCE.
The images below show the California wildfires located by NASA Visible Infrared Imaging Radiometer Suite (VIIRS) Near Real-Time Fires and Thermal Anomalies product (in red points) from the Land, Atmosphere Near real-time Capability for EOS (LANCE). The map of California was provided through VIIRS true color imagery via NASA Worldview from November 9 - 12, 2018. The images show the extent of the Camp Fire, Woolsey Fire and Hill Fire burning in California. The red outlines with smoke indicate areas of active fire....
October 26, 2018
VIIRS (Visbile Infrared Imaging Radiometer Suite) instrument aboard Suomi-NPP captures observations of Typhoon Yutu.
The VIIRS (Visible Infrared Imaging Radiometer Suite) instrument aboard the Suomi National Polar-orbiting Partnership (NPP) observed Typhoon Yutu around 1:30 pm local time from October 23 to 26, 2018. The VIIRS images revealed a cloud-filled eye. The Suomi NPP satellite is part of the Joint Polar Satellite System (JPSS), a joint NOAA/NASA program, created in order to design and launch the next generation of polar orbiting satellites. VIIRS data is used to measure...
October 26, 2018
AMSR-2 precipitation aquired 10/22/18.
AMSR-2 precipitation from Hurricane Willa acquired 10/22/18. On October 22, 2018 the Advanced Microwave Scanning Radiometer 2 (AMSR2) instrument, onboard Japanese Aerospace Exploration Agency (JAXA)’s Global Change Observation Mission (GCOM)-W1 satellite, observed the surface precipitation rates of Hurricane Willa as it approached Mexico. This Land, Atmosphere Near-Real Time Capability for EOS (LANCE) NRT AMSR2 image shows high precipitation...
October 19, 2018
VIIRS Nighttime Imagery
The Visible Infrared Imaging Radiometer Suite (VIIRS) nighttime sensor (also called the Day/Night Band, or DNB), on the joint NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi-NPP) satellite captured the magnitude of power outages during Hurricane Michael. To watch the video of this...
October 16, 2018
MODIS Flood Map
MODIS Flood Map  These maps were created from the Moderate Resolution Imaging Spectroradiometer (MODIS) Near Real-Time Global (NRT) Flood Mapping product. The red color on the map represents new flood waters from October 13 -15, 2018 in Florida. The MODIS Near Real-Time (NRT) Global Flood Mapping Project produces global daily flood water maps at approximately 250 m spatial resolution. NASA Land, Atmosphere Near real-time Capability for EOS (...
October 12, 2018
NASA's Black Marble Technology over Florida
The pre- and post-event images of NASA's Black Marble product suite show the artificial lights at night from Panama City, FL and Mexico Beach, FL based on data collected on October 6 and October 12, 2018. NASA's Black Marble product suite has immediate access to data documenting disruptions in energy infrastructure and utility services due to Hurricane Michael. The pre ...
October 11, 2018
VIIRS Nighttime Imagery
UPDATE 10/12/18: S-NPP VIIRS Nighttime Image on October 6, 2018 before Hurricane Michael S-NPP VIIRS Nighttime Image on October 12, 2018 after Hurricane Michael Clear skies overnight provided ideal view conditions for the VIIRS Day/Night Band sensor to capture the intensity of the city lights post Hurricane Michael. Note the widespread power outages across Florida and Georgia....
September 15, 2018
VIIRS Black Marble nighttime data showing pre and post event imagery from Wilmington NC.
UPDATE 9/21/18: Suomi-NPP VIIRS Black Marble nighttime data showing pre and post event imagery from Wilmington NC. Suomi-NPP VIIRS Black Marble nighttime data showing pre and post event imagery from Jacksonville NC. The NASA Black Marble product suite has been used to assess disruptions in energy infrastructure and utility services following major disasters...
September 15, 2018
VIIRS cloud mask product.
UPDATE 9/19/18: Suomi-NPP VIIRS cloud mask product. Click here to view the animated VIIRS cloud mask product. It is the new...
August 30, 2018
SNPP near-realtime fire detection product
On Saturday August 25, the Manam Island volcano has erupted on the north coast of Papua New Guinea. After the cloud dissipated, lava flows are identified by Visible Infrared Imaging Radiometer Suite (VIIRS) Fires and Thermal Anomalies Near Real-Time product from NASA LANCE.  Red points in the remote sensing image show the locations of lava flows in the Manam Island, on August 27, 2018.  
May 6, 2018
SO2 plumes and Thermal Anomalies from Hawaii Eruption; May, 6th 2018
The slide shows a composite of satellite products to highlight plumes of Sulfur Dioxide and Hot spots from Lava erupting from Mt Kilauea and the new Fissures observed since May 3rd and May 4th in the Leilani areas.  The top panel shows a map of SO2 from the Tropomi sensor on the ESA Satellite Sentinel 5P for May 6th. Two main SO2 plumes are seen on the map emerging from the Kilauea crater ( Red triangle) and another source to the East is also visible. They eventually...
June 6, 2018
VIIRS_Thermal_Anomalies__Kilauea_June08_2018
VIIRS fires and thermal anomalies from 6/8/18, with VIIRS nighttime basemap. VIIRS fires and thermal anomalies from 6/6/18, with VIIRS nighttime basemap. VIIRS fires and thermal anomalies from 6/6/18...
June 5, 2018
VIIRS image of the Fuego eruption from June 3, 2018
Fuego in Guatemala is one of Central America’s most active volcanoes. For years, the towering Volcán de Fuego has puffed continuously, punctuated by occasional episodes of explosive activity, big ash plumes, lava flows, and avalanche-like debris slides known as pyroclastic flows. Just before noon on June 3, 2018, the volcano produced an explosive eruption that sent ash billowing thousands of meters into the air. A deadly mixture of ash, rock fragments, and hot gases...
June 1, 2018
VIIRS I15 Band
The movement of the recent Lava channel from fissure 8 is now reaching far east near the Kapoho crater. on June 1st at 1:55 am (HST), A band of enhanced radiance from the I15 VIIRS channel was consistent with USGS thermal imagery. It shows the rapid progress of the lava front toward the Kapoho crater 6 hours after the USGS Thermal map and indicates that the Lava  intersected road 132 leaving the communities of Vacationland and Kapoho Beach Lots without road access. USGS also reported...
May 16, 2018
VIIRS thermal hotspots from May 22
May 22nd, 2018: VIIRS thermal anomalies continues to locate lava fountains from fissure 6, 19 and 22 flowing toward the ocean though several channels consistent with thermal maps from the USGS on May, 22nd. VIIRS suggests hot spots along the coast consistent with Lava flow entries warming up the ocean in the proximity of the coast. VIIRS nighttime imagery shows the light coming from the lava and reaching saturation levels.  May 21st, 2018:...

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