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Update lahaina-fire.stories.mdx
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freitagb authored Nov 29, 2023
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On August 8, 2023, a devastating wildfire roared through the city of Lahaina, Hawai’i, located on the island of Maui and home to over 13,000 residents. This wildfire was reportedly sparked by a downed powerline on Lahainaluna Road. Though initially extinguished, the fire was reinvigorated by intense wind gusts that prevailed throughout the day. The National Weather Service reported wind gusts as high as 67 mph in the area, which helped to quickly spread the wildfire across much of Lahaina during the afternoon hours of August 8.
</Prose>
</Block>

<Block>
<Figure>
<Map
center={[-156.68108, 20.88130]}
zoom={12}
datasetId='lahaina-fire'
layerId='hls-swir-falsecolor-composite'
layerId='landsat-nighttime-thermal'
dateTime='2023-08-08'
compareDateTime='2023-08-13'

/>
<Caption>
Harmonized Landsat Sentinel-2 false color composite imagery of Maui before (August 8, 2013) and after the fire (August 13, 2013).
Landsat-8 nighttime thermal imagery from August 8, 2023 compared to BAIS2 burned area from the August 13, 2023 derived from Harmonized Landsat Sentinel-2 data.
</Caption>
</Figure>
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</Block>

<Block>
<Figure>
<Map
datasetId='lahaina-fire'
layerId='landsat-nighttime-thermal'
dateTime='2023-08-08'
compareDateTime='2023-08-13'

<Figure>
<Image
src={new URL('./lahaina-fire-drought-monitor.jpg', import.meta.url).href}
alt='US Drought Monitor, August 8th, 2023.'
/>
<Caption>
Landsat-8 nighttime thermal imagery from August 8, 2023 compared to BAIS2 burned area from the August 13, 2023 derived from Harmonized Landsat Sentinel-2 data.
US Drought Monitor Index on August 8th, 2023 over the Hawaiian Islands, with darker colors indicating worse drought conditions.
</Caption>
</Figure>

<Prose>
## Satellite Analysis of the Lahaina Wildfire
Thermal imagery acquired by the Operational Land Imager (OLI) and Thermal Infrared Sensors (TIRS) aboard the joint NASA/USGS Landsat-8 satellite detected ongoing fires across much of the city of Lahaina during its overpass at 10:35 p.m., Local Standard Time, on August 8. TIRS and OLI take observations from several different wavelengths that can be used to better understand changes to land and vegetation from natural disasters. With a simple calculation using two wavelength bands, scientists can derive burned area from satellite observations. Burned area derived using NASA’s Harmonized Landsat and Sentinel-2 (HLS) products on August 13, 2023, clearly show areas most impacted by the fire. The areas identified with the highest probability of having been burned were located across the severely scorched fields just uphill from the city.
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</Block>

<Block>
<Figure>
<Image
src={new URL('./lahaina-fire-drought-monitor.jpg', import.meta.url).href}
alt='US Drought Monitor, August 8th, 2023.'
<Figure>
<Map
center={[-156.6837, 20.8785]}
zoom={14}
datasetId='lahaina-fire'
layerId='hls-swir-falsecolor-composite'
dateTime='2023-08-08'
compareDateTime='2023-08-13'
/>
<Caption>
US Drought Monitor Index on August 8th, 2023 over the Hawaiian Islands, with darker colors indicating worse drought conditions.
Harmonized Landsat Sentinel-2 false color composite imagery of Maui before (August 8, 2013) and after the fire (August 13, 2013).
</Caption>
</Figure>
</Block>
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