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The Dixie wildfire, the northern most of the two, was the largest fire in California history with a total area (1,505 sq. miles) just above the size of U.S. state Rhode Island (1,214 sq. miles). 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 Caldor wildfire, east of Sacramento, is the second fire in California history to cross the Sierra Nevada Mountains. 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.
For more details, see the paper here.",
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"title": "Spread of the Caldor Fire - 2021",
"description": "This visualization shows the spread of the Caldor fire between August 15 and October 6, 2021, updated every 12 hours based on new satellite active fire detections. The yellow outlines track the position of the active fire lines for the last 60 hours, with the latest location of the fire front in the brightest shade of yellow. The red points show the location of active fire detections, while the grey region shows the estimated total area burned. The graph shows the cumulative burned area in square kilometers.Coming soon to our YouTube channel. || Caldor_fire_2021.6540_print2.jpg (1024x576) [371.6 KB] || Caldor_fire_2021_p30_1080p30.mp4 (1920x1080) [107.8 MB] || Caldor_fire_2021_1080p60.mp4 (1920x1080) [123.2 MB] || 3840x2160_16x9_60p (3840x2160) [0 Item(s)] || captions_silent.32783.en_US.srt [43 bytes] || Caldor_fire_2021_p30_2160p30.mp4 (3840x2160) [356.4 MB] || Caldor_fire_2021_2160p60.mp4 (3840x2160) [383.8 MB] || firespread02.hwshow || Caldor_fire_2021_p30_1080p30.mp4.hwshow || ",
"release_date": "2022-06-01T09:00:00-04:00",
"update_date": "2025-06-23T00:13:41.498157-04:00",
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"media_type": "Image",
"alt_text": "This visualization shows the spread of the Caldor fire between August 15 and October 6, 2021, updated every 12 hours based on new satellite active fire detections. The yellow outlines track the position of the active fire lines for the last 60 hours, with the latest location of the fire front in the brightest shade of yellow. The red points show the location of active fire detections, while the grey region shows the estimated total area burned. The graph shows the cumulative burned area in square kilometers.Coming soon to our YouTube channel.",
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{
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"page_type": "Visualization",
"title": "Spread of the Dixie Fire - 2021",
"description": "This visualization shows the spread of the Dixie fire between July 14 and October 22, 2021, updated every 12 hours based on new satellite active fire detections. The yellow outlines track the position of the active fire lines for the last 60 hours, with the latest location of the fire front in the brightest shade of yellow. The red points show the location of active fire detections, while the grey region shows the estimated total area burned. The graph shows the cumulative burned area in square kilometers.Coming soon to our YouTube channel. || Dixie_fire_2021.7135_print.jpg (1024x576) [369.5 KB] || Dixie_fire_2021.7135_searchweb.png (320x180) [139.8 KB] || Dixie_fire_2021.7135_thm.png (80x40) [8.3 KB] || Dixie_fire_2021_p30_1080p30.mp4 (1920x1080) [172.9 MB] || Dixie_fire_2021_1080p60.mp4 (1920x1080) [190.8 MB] || 3840x2160_16x9_60p (3840x2160) [0 Item(s)] || captions_silent.32827.en_US.srt [43 bytes] || Dixie_fire_2021_p30_2160p30.mp4 (3840x2160) [477.6 MB] || Dixie_fire_2021_2160p60.mp4 (3840x2160) [513.8 MB] || Dixie_fire_2021_p30_1080p30.mp4.hwshow || Dixie_fire_animation_only_2021_1080p60.hwshow || ",
"release_date": "2022-06-01T09:00:00-04:00",
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"media_type": "Image",
"alt_text": "This image shows the spread of the Dixie fire between July 14 and October 22, 2021, with the fire line for each 12-hour step in time shown in a different color.",
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{
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"title": "NASA’s New Scientific Breakdown of Dramatic Caldor and Dixie Fires",
"description": "Complete transcript available. || Caldor_fire_2021.6540_print2.jpg (1024x576) [371.6 KB] || Caldor_fire_2021.6540_print2_searchweb.png (320x180) [132.2 KB] || Caldor_fire_2021.6540_print2_thm.png [7.6 KB] || CCaldor_fire_finLmp4.mp4 (1920x1080) [516.8 MB] || Caldor_fire_3_final.mp4 (1920x1080) [517.1 MB] || Caldor_firefinalmp4_otter_ai.en_US.srt [4.5 KB] || Caldor_firefinalmp4_otter_ai.en_US.vtt [4.5 KB] || ",
"release_date": "2022-05-30T11:30:00-04:00",
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"alt_text": "Complete transcript available.",
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