ABoVE: Corrected MODIS MAIAC Reflectance at Tower Sites, Alaska and Canada, 2000-2016

Description

This dataset provides angular corrections of MODIS Multi-Angle Implementation of Atmospheric Correction algorithm (MAIAC) surface reflectances by two methods at each of 62 flux tower sites (1 km x 1 km area) across the ABoVE domain in Alaska and western Canada from 2000 to 2015/2016. The original MAIAC reflectance data were corrected to consistent view and illumination angles (0 degree view zenith angle and 45 degree of sun zenith angle) using two independent algorithms: the first based on the original BRDF (Bidirectional Reflectance Distribution Function) parameters provided by the MAIAC team, and the second based on a machine learning approach (random forests). The corrected data preserve the original MAIAC data's sub-daily temporal resolution and 1 km spatial resolution with seven land bands (bands 1-7) and five ocean bands (bands 8-12). The resulting tower site sub-daily timeseries of angular corrected surface reflectances are suitable for long-term studies on patterns, processes, and dynamics of surface phenomena.

Resources

Name Format Description Link
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DMODIS_MAIAC_Reflectance_1700%26ac%3Dtrue
5 https://daac.ornl.gov%2FABOVE%2Fguides%2FMODIS_MAIAC_Reflectance.html
5 https://doi.org%2F10.3334%2FORNLDAAC%2F1700
5 https://data.ornldaac.earthdata.nasa.gov%2Fprotected%2Fbundle%2FMODIS_MAIAC_Reflectance_1700.zip
5 https://daac.ornl.gov%2FABOVE%2Fguides%2FMODIS_MAIAC_Reflectance_Fig2.png
5 https://above.nasa.gov%2F
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Fabove%2FMODIS_MAIAC_Reflectance%2Fcomp%2FMODIS_MAIAC_Reflectance.pdf
5 https://search.earthdata.nasa.gov/search?q=MODIS_MAIAC_Reflectance_1700&ac=true
21 https://doi.org/10.3334/ORNLDAAC/1700
57 MODIS_MAIAC_Reflectance_1700.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/MODIS_MAIAC_Reflectance_1700.zip
34 MODIS_MAIAC_Reflectance_Fig2.png https://daac.ornl.gov/ABOVE/guides/MODIS_MAIAC_Reflectance_Fig2.png
5 https://above.nasa.gov/
33 MODIS_MAIAC_Reflectance.pdf https://data.ornldaac.earthdata.nasa.gov/public/above/MODIS_MAIAC_Reflectance/comp/MODIS_MAIAC_Reflectance.pdf

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  • earth-science-surface-radiative-properties-land-surface-reflectance

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