ABoVE: Lake Growing Season Green Surface Reflectance Trends, AK and Canada, 1984-2019 : Arctic-Boreal Vulnerability Experiment (ABoVE)

This dataset provides an annual time series of Landsat green surface reflectance and the derived annual trend during the growing season (June and July) for 472,890 lakes across the ABoVE Extended Study Domain from 1984 to 2019. The reflectance data are from Landsat-5, Landsat-7, and Landsat-8 sensor...

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Bibliographic Details
Main Authors: Kuhn, C., Butman, D.
Format: Article in Journal/Newspaper
Language:English
Published: ORNL Distributed Active Archive Center 2021
Subjects:
TERRESTRIAL HYDROSPHERE, SURFACE WATER, SURFACE WATER FEATURES, LAKES/RESERVOIRS
TERRESTRIAL HYDROSPHERE, WATER QUALITY/WATER CHEMISTRY, WATER CHARACTERISTICS, WATER COLOR
LAND SURFACE, SURFACE RADIATIVE PROPERTIES, REFLECTANCE,
CLIMATE INDICATORS, LAND SURFACE/AGRICULTURE INDICATORS, LENGTH OF GROWING SEASON,
SPECTRAL/ENGINEERING, VISIBLE WAVELENGTHS, VISIBLE RADIANCE,
LANDSAT-5, TM
LANDSAT-7, ETM+
LANDSAT-8, OLI
growing season
boreal forests
lake color
Alaska
Canada
ABoVE domain
green reflectance
Arctic
Climate change
Online Access:https://dx.doi.org/10.3334/ornldaac/1866
https://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1866
Description
Summary:This dataset provides an annual time series of Landsat green surface reflectance and the derived annual trend during the growing season (June and July) for 472,890 lakes across the ABoVE Extended Study Domain from 1984 to 2019. The reflectance data are from Landsat-5, Landsat-7, and Landsat-8 sensors for the green band (center wavelength 560 nm). Over 270,000 Landsat scenes were evaluated and quality assured to be cloud free and over water. Lakes were selected from HydroLAKES; a global database of lakes of at least 10 ha. Lake surface reflectance was extracted from a 3-by-3-pixel area centered on each lake centroid from the selected Landsat scenes determined from lake polygons. This dataset evaluates changes in lake color over time in arctic and boreal regions of North America. Color is relevant for understanding physical, ecological and biogeochemical processes in some of the world's highest concentration of lakes where climate change may have significant impacts.

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