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ABoVE: Burned Area, Depth, and Combustion, 2001-2019

Submitted by ORNL DAAC Staff on 2022-09-29
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Total burned area (a), total carbon emissions (b), mean combustion (c), and mean burn depth (d) between 2001-2019 aggregated to a 70 km grid. Note that burned area (a) covers all of Alaska and Canada whereas all other metrics cover the ABoVE extended domain.

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Annual gridded estimates of fire locations and associated burn fraction per pixel for Alaska and Canada at approximately 500 m spatial resolution for the period 2001-2019.
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MASTER: SARP Campaigns from 2009 to 2018, California, USA

Submitted by ORNL DAAC Staff on 2022-08-22
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RGB composite MASTER image from data collected during the SARP campaign over Pyramid Lake, California, USA  on 2009-07-24. Image derived from bands 12, 10, 9 spanning visible to near-infrared wavelengths.

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Level 1B (L1B) data products from the MODIS/ASTER Airborne Simulator (MASTER) instrument were collected and developed by the Student Airborne Research Program (SARP).

MASTER: HyspIRI Airborne Campaign

Submitted by ORNL DAAC Staff on 2022-07-28
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Single band images and an RGB composite image from flight track 1 acquired on 26 March 2013 over Mono Lake, California, U.S. Source: /MASTERL1B_1393500_01_20130326_1728_1733_V01.jpg from dataset MASTER: HyspIRI Airborne Campaign, California, Early Spring 2013.

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The MASTER instrument is a modified Daedalus Wildfire scanning spectrometer that flies on a variety of multi-altitude research aircraft

ABoVE: Tundra Plant Leaf-level Spectral Reflectance

Submitted by ORNL DAAC Staff on 2022-07-18
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Schematic of FluoWat leaf clip operation for measuring leaf reflectance, transmittance, and upward and downward fluorescence (SIF). The leaf is placed in the clip and illuminated through the open port (A). Reflected and transmitted radiance are measured by attaching a fiber optic cable from the spectrometer to the top or bottom of the clip. To measure fluorescence spectra a low pass filter is placed across the illumination port (B). Two filters are applied in sequence, they block incident wavelengths above 650 nm and 700 nm, therefore any radiance measured in the longer wavelengths can come only from fluorescence.

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Leaf-level variables of high latitude plant samples collected near Fairbanks, Utqiagvik, and Toolik, Alaska, U.S., during the summers of 2019, 2020, and 2021.
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ABoVE: Landsat Vegetation Greenness Trends, 1985-2019

Submitted by ORNL DAAC Staff on 2022-07-18
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Change in greenness of boreal forest across the northern hemisphere between 2000 to 2019, estimated from an ensemble of vegetation indices derived from Landsat imagery. 

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Interannual trends in annual maximum vegetation greenness from 1985 to 2019 for recently undisturbed areas in the boreal forest biome.
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