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From: Dan Richter (1:317/3)
To: All
Date: Fri, 23.04.21 13:00
MODIS Pic of the Day 23 April 2021
April 23, 2021 - Prescribed Burn in Oregon


Prescribed Burn

On April 21, 2021, a large plume of smoke rose from a fire in Deschutes
National Forest, Oregon. The Moderate Resolution Imaging
Spectroradiometer (MODIS) on board NASA’s Aqua satellite captured this
true-color image of the scene on that same day.

The thick gray ribbon of smoke stretched southwest from the National
Forest almost to Crater Lake, a distance of roughly 55 miles (90 km).
Several smaller fires also burned in the forested lands both east and
west of the snow-capped Cascades Mountains and can be seen as bright
red “hot spots”. Each hot spot marks an area where the thermal bands on
the MODIS instrument detected high temperatures. When combined with
smoke, such hotspots mark actively burning fire.

While it is not possible to determine the cause of a fire by satellite
imagery alone, the time of year, location, and public notifications
confirm that these fires are prescribed burns. Each spring forest
managers in the Pacific Northwest carefully plan, ignite, and control
fires designed to reduce fuel loads and improve wildlands.

According to the USDA Forest Service, burning was taking place in
Deschutes National Forest on April 21 and 22 approximately five miles
east of La Pine. Their notification states, “Fuels specialists will
underburn approximately 600 acres along the north side of Forest
Service Road (FSR) 22 (Finley Butte Road), between FSR 9750 and FSR
2215. The objective of this prescribed burn is to reduce fuel loadings
in ponderosa pine stands that have been treated as part of the Ogden
Landscape Vegetation Management Project. This will allow fires to burn
with less intensity and reduce potential impacts of wildfire coming
into the La Pine community.”

Image Facts
Satellite: Aqua
Date Acquired: 4/21/2021
Resolutions: 1km (33.4 KB), 500m (117.6 KB), 250m (376.2
Bands Used: 1,4,3
Image Credit: MODIS Land Rapid Response Team, NASA GSFC

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