ABoVE: Annual Phenology Derived from Landsat across the ABoVE Core Domain, 1984-2014

Description

This dataset provides annual maps of the timing of spring onset with leaf emergence, of autumn onset with leaf senescence, and of peak greenness for each 30 m pixel derived from Landsat time series of Thematic Mapper (TM) and Enhanced Thematic Mapper (ETM+) observations from 1984 to 2014. The ABoVE core domain includes 169 ABoVE grid tiles across Alaska, USA and Alberta, British Columbia, Northwest Territories, Nunavut, Saskatchewan, and Yukon, Canada. The data provided for deriving seasonality includes the total number of cloud-free observations, r-squared values between observed and spline-predicted Enhanced Vegetation Index (EVI), long-term average minimum EVI, long-term average maximum EVI, long-term average spring onset, long-term average autumn onset, annual spring onset, and annual autumn onset. The data provided for peak greenness includes annual peak Normalized Difference Vegetation Index (NDVI), Normalized Burn Ratio (NBR), annual composite red reflectance, annual composite NIR reflectance, annual composite shortwave infrared reflectance (band 6, SWIR1), annual composite shortwave infrared reflectance (band 7, SWIR2), number of dates used to calculate composites, and day of year of associated maximum composite.

Resources

Name Format Description Link
5 https://search.earthdata.nasa.gov/search?q=Annual_Seasonality_Greenness_1698&ac=true
21 https://doi.org/10.3334/ORNLDAAC/1698
34 Annual_Seasonality_Greenness_Fig1.png https://daac.ornl.gov/ABOVE/guides/Annual_Seasonality_Greenness_Fig1.png
33 Annual_Seasonality_Greenness.pdf https://data.ornldaac.earthdata.nasa.gov/public/above/Annual_Seasonality_Greenness/comp/Annual_Seasonality_Greenness.pdf
5 https://search.earthdata.nasa.gov%2Fsearch%3Fq%3DAnnual_Seasonality_Greenness_1698%26ac%3Dtrue
5 https://daac.ornl.gov%2FABOVE%2Fguides%2FAnnual_Seasonality_Greenness.html
5 https://doi.org%2F10.3334%2FORNLDAAC%2F1698
5 https://daac.ornl.gov%2FABOVE%2Fguides%2FAnnual_Seasonality_Greenness_Fig1.png
5 https://above.nasa.gov%2F
5 https://data.ornldaac.earthdata.nasa.gov%2Fpublic%2Fabove%2FAnnual_Seasonality_Greenness%2Fcomp%2FAnnual_Seasonality_Greenness.pdf
5 https://search.earthdata.nasa.gov/search?q=Annual_Seasonality_Greenness_1698&ac=true
21 https://doi.org/10.3334/ORNLDAAC/1698
34 Annual_Seasonality_Greenness_Fig1.png https://daac.ornl.gov/ABOVE/guides/Annual_Seasonality_Greenness_Fig1.png
5 https://above.nasa.gov/
33 Annual_Seasonality_Greenness.pdf https://data.ornldaac.earthdata.nasa.gov/public/above/Annual_Seasonality_Greenness/comp/Annual_Seasonality_Greenness.pdf
5 https://search.earthdata.nasa.gov/search?q=Photos_ThermokarstLakes_AK_1845&ac=true
21 https://doi.org/10.3334/ORNLDAAC/1845
57 Photos_ThermokarstLakes_AK_1845.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/Photos_ThermokarstLakes_AK_1845.zip
34 Photos_ThermokarstLakes_AK_Fig1.png https://daac.ornl.gov/ABOVE/guides/Photos_ThermokarstLakes_AK_Fig1.png
33 Photos_ThermokarstLakes_AK.pdf https://data.ornldaac.earthdata.nasa.gov/public/above/Photos_ThermokarstLakes_AK/comp/Photos_ThermokarstLakes_AK.pdf

Tags

  • earth-science-vegetation-biosphere-canopy-characteristics
  • earth-science-vegetation-biosphere-plant-phenology
  • earth-science-vegetation-biosphere-vegetation-index-normalized-difference-vegetation-index-ndvi

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