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  • Tiwi Islands, Australia
  • Masthead platform instrument info Suomi-NPP/VIIRS
  • Masthead date range 8 July 2019

Detecting Wildfires from Space

The milky-white “clouds” over Australia’s Tiwi Islands in this image is actually smoke from burning wildfires. Each red dot is a hotspot detected by the Visible Infrared Imaging Radiometer Suite (VIIRS) aboard the joint NASA/NOAA Suomi National Polar-orbiting Partnership (Suomi-NPP) satellite.

How Satellite Sensors Pinpoint Sources of Heat

Radiometers like VIIRS detect heat emitted from sources such as wildfires, volcanic eruptions, and gas flares. Algorithms convert these data into hotspots representing the approximate location of the heat source within a 1-km2 area (red dots). This information can be provided in near real-time.


NASA's data policy ensures that all NASA data are available fully, openly, and without restrictions. Here's what this means to you.

Tropical Storm Barry over Louisiana and Mississippi

Base image captured on 14 July 2019, by the VIIRS instrument, on board the joint NASA/NOAA Suomi-NPP satellite.

2019 Gregory G. Leptoukh Online Giovanni Workshop

Event Dates: July 17, 2019-July 24, 2019

Join us for the 4th Gregory G. Leptoukh Online Giovanni Workshop, hosted by NASA's Goddard Earth Sciences Data and Information Services Center (GES DISC). The theme for this workshop is “Enhancing Knowledge with Giovanni”and will showcase different ways Giovanni is used to enhance scientific knowledge.

Webinar: Explore, Access, and Customize ICESat-2 Data at the NASA NSIDC DAAC

Event Date: July 23, 2019

During this webinar we will introduce the ICESat-2 mission and show you how to explore, access and customize ICESat-2 data with the advanced discovery and visualization OpenAltimetry application, directly filter and access ICESat-2 data from an NSIDC DAAC data set page and subset, reformat and analyze ICESat-2 data using Python-based resources.

Striking new ground

Lightning is much more complex - and extreme - than you think.

Daymet Data in Recent Research

The Daymet dataset at NASA’s Oak Ridge National Laboratory Distributed Active Archive Center (ORNL DAAC) provides nearly 40 years of environmental data about North America.

Providing ACCESS to EOSDIS Data

NASA’s ACCESS Program helps create and enhance technologies that make EOSDIS data more accessible for global interdisciplinary research.

ICESat-2 Data Usher in a New Age of Exploration

Data from NASA’s ICESat-2 mission provide incredibly accurate measurements of Earth elevation change—and much more.

User Profile: Dr. Adam Storeygard

Who uses NASA Earth science data? Dr. Adam Storeygard, for economic studies of urbanization and development.

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