Map of dixie fire1/20/2024 Geological Survey and GOES 17 imagery courtesy of NOAA and the National Environmental Satellite, Data, and Information Service (NESDIS). NASA Earth Observatory images by Joshua Stevens, using Landsat data from the U.S. It is still less than half the size of the August Complex, which burned more than 1 million acres in 2020. Overnight (August 5 to August 6) the Dixie fire grew by about 70,000 acres (110 square miles/280 square kilometers) to become the third-largest fire on record in California. GOES-17 is operated by the National Oceanic and Atmospheric Administration (NOAA) NASA helps develop and launch the GOES series of satellites. is visible in this image, acquired on August 6, 2021, with the Geostationary Operational Environmental Satellite 17 (GOES-17) (above). The enormous blanket of smoke from the Dixie fire and dozens of others burning across the western U.S. Wind blowing down the canyon carried some of the smoke toward the Sacramento Valley. Smoke, which can sink toward the ground during a temperature inversion, is especially apparent in the Feather River Canyon. Notice that while most of the smoke is being carried toward the north, some smoke hangs in the valleys and canyons south of the active fire areas. It burned through the historic Gold Rush era town of Greenville. With wind gusts as high as 40 miles per hour (65 kilometers per hour) that day, the fire quickly advanced across the dry mountain vegetation. In this view, the hottest and most active parts of the fire are orange-yellow. It combines natural-color with shortwave-infrared light to cut through some of the smoke and highlight the active fire fronts. The second image, also acquired on August 4, shows the fire as observed by the Enhanced Thematic Mapper Plus (ETM+) on Landsat 7. On August 4, 2021, an astronaut on the International Space Station shot a photo of the Dixie fire’s thick smoke plume (top). As of August 6, 2021, the Dixie fire had charred more than 432,000 acres (675 square miles/1,750 square kilometers). In total, the Caldor fire burned for more than 80 days through the El Dorado National Forest, threatening the communities of Meyers and South Lake Tahoe.The Dixie fire in Northern California has surpassed the Bootleg fire in Oregon to become the largest fire so far this year in the United States. The Caldor wildfire, east of Sacramento, is the second fire in California history to cross the Sierra Nevada Mountains. In total, the Dixie fire burned for more than 100 days and this map displays the total extent between July 14 and October 22, 2021. The Dixie wildfire, the northern most of the two, was the largest fire in California history with a total area (1,505 sq. The tracking system’s algorithm uses new active fire detections to update the total fire perimeter and estimate the position of active fire lines every 12 hours. The data is derived from a new automatic fire detection and tracking approach (Chen et al., 2022) based on near-real time active fire detections from the VIIRS sensor on the Suomi-NPP satellite. This map illustrates perimeter data for two California wildfires and allows for the comparison of their size and position.
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