Landsat's Role in Responding to Disasters
In 2022, the Emergency Events Database (EM-DAT) reported 387 natural hazards and disasters worldwide, resulting in the loss of over 30,000 lives and affecting more than 185 million individuals. Economic losses totaled around US$223.8 billion. Fires, floods, heat waves, drought, hurricanes, tornadoes, and other natural disasters can be particularly tragic and costly when critical facilities such as power plants, airports, roads, and hospitals are threatened. When a disaster strikes, remote sensing is often the only way to get a big-picture view of what is happening on the ground. With its consistent, reliable, repeated observations of Earth’s changing surface, Landsat keeps a record of Earth’s land surfaces before and after disasters, serving as an essential tool for assessing risk, mapping the extent of damage, and planning post-disaster recovery. Landsat produces 185-kilometer-wide images with 30-meter resolution in visible and infrared wavelengths of light, making it possible to map impacts on the landscape in ways otherwise not visible to human sight. For example, Landsat sensors enable us to see the heat from fires both during and after the burns, and the lava flows from volcanic eruptions even when gaseous substances obscure the view to human eyes.
Guardian Landsat on Firewatch
Landsat collects data that helps effectively deal with intensifying wildfires—at all stages of the fire cycle.
Could Land Surface Temperature Help Predict Earthquakes?
In Taiwan, earthquakes are linked to shallow stores of magma. New research explores this connection by linking land surface temperature with earthquakes.
Landsat Observations Key Resource for Many Federal Agencies
In the FY23 Aeronautics and Space Report released on May 23, 2024, a multitude of Federal agencies report work informed by Landsat data.
Data in Harmony: NASA’s Harmonized Landsat and Sentinel-2 Project
NASA’s Harmonized Landsat and Sentinel-2 (HLS) project is a groundbreaking initiative that combines data from Landsats 8 & 9 with the European Space Agency’s Sentinel-2A & 2B satellites.
Satellites Show How Drought Changes Wildfire Recovery in the West
A new study using NASA satellite data reveals how drought affects the recovery of western ecosystems from fire, a result that could provide meaningful information for conservation efforts.
ExtraDimensional—The Fusion of Landsat & GEDI
When Landsat’s vast decades-long archive is combined with data from other instruments it can provide amazing insight into how our world is evolving with us and around us. Here are some of the ways Landsat and GEDI data are being harnessed to help us better understand the complex relationship between humanity and nature.
