ECOSTRESS Views 2021 Northern California Dixie Fire

NASA's ECOSTRESS captured data over Northern California's Dixie Fire, which had ballooned to over 220,000 acres as of July 29, 2021. In the data visualization, the red areas show the hottest pixels – and fire movement – from July 15 to July 24. The most heavily affected areas are south of Lake Almanor in Plumas County. Tasked with detecting plant water use and stress from the vantage point of the International Space Station, ECOSTRESS's primary mission is to measure the temperature of plants heating up as they run out of water. But it can also measure and track heat-related phenomena like wildfires, heat waves, and volcanoes. ECOSTRESS observations have a spatial resolution of about 77 by 77 yards (70 by 70 meters), which enables researchers to study surface-temperature conditions down to the size of a football field. Due to the space station's unique orbit, the mission can acquire images of the same regions at different times of the day, as opposed to crossing over each area at the same time of day like satellites in other orbits do. This is advantageous when monitoring plant stress in the same area throughout the day, for example. Movie available at https://photojournal.jpl.nasa.gov/catalog/PIA23696