Data Availability Statements

Orthorectified radiances in Figure 2 from AVIRIS-NG’s ABoVE campaign acquisitions are available with documentation from the ORNL DAAC (https://doi.org/10.3334/ORNLDAAC/1569). They were analyzed with the ISOFIT atmospheric correction codebase (https://github.com/isofit/isofit). This software is also available via the DOIhttps://doi.org/10.5281/zenodo.4614338). Data for Figure 2 are cited in the text with the references below:
AVIRIS-NG data citation:
Miller, C.E., R.O. Green, D.R. Thompson, A.K. Thorpe, M. Eastwood, I.B. Mccubbin, W. Olson-duvall, M. Bernas, C.M. Sarture, S. Nolte, L.M. Rios, M.A. Hernandez, B.D. Bue, and S.R. Lundeen. 2019. ABoVE: Hyperspectral Imagery from AVIRIS-NG, Alaskan and Canadian Arctic, 2017-2019. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1569
ISOFIT citation:
Thompson, David R., Vijay Natraj, Robert O. Green, Mark C. Helmlinger, Bo-Cai Gao, and Michael L. Eastwood. ”Optimal estimation for imaging spectrometer atmospheric correction.” Remote Sensing of Environment 216 (2018): 355-373.https://doi.org/10.1016/j.rse.2018.07.003
Reflectance spectra for Figure 3 are available on Github (https://github.com/nelsopet/lecospec) and are in the queue for archiving at the ORNL DAAC (https://daac.ornl.gov/). These data will also be made available on EcoSIS (https://ecosis.org/).
Reflectance spectra and hydration data for bryophytes in Figure 4 will be archived at the Arctic Data Center by NCEAS repository (https://www.nceas.ucsb.edu/arctic-data-center)
Data for Figure 5 came from Arctic Vegetation Plots in Flux Tower Footprints, North Slope, Alaska, 2014. This dataset provides spectral, carbon flux, vegetation, environmental, and soil data collected from plots located in the footprints of eddy covariance flux towers along a 300 km north-south latitudinal gradient from Barrow, to Atqasuk, and to Ivotuk across the North Slope of Alaska in 2014. Within each of the five flux tower footprints, 1x1-m quadrats were placed subjectively within widespread habitat or micro-habitat types to map the dominant vegetation communities and site environmental factors. Specific attributes included species cover data and environmental, soil and spectral data (active layer thaw depth, moss layer depth, organic horizon layer depth, standing water depth, soil moisture status, vegetation height, LAI).
Data for Figure 5 are available at NASA’s Earth Observing System Data and Information System (EOSDIS) (Registration required)https://doi.org/10.3334/ORNLDAAC/1546with additional information athttps://daac.ornl.gov/ABOVE/guides/Flux_Tower_Zona_Veg_Plots.html. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy
Data for Figure 5 are cited in the text using the references below:
Davidson, S.J., and D. Zona. 2018. Arctic Vegetation Plots in Flux Tower Footprints, North Slope, Alaska, 2014. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1546
Davidson, S.J., Santos, M.J., Sloan, V.L., Watts, J.D., Phoenix, G.K., Oechel, W.C. and Zona, D. (2016) Mapping Arctic Tundra Vegetation Communities Using Field Spectroscopy and Multispectral Satellite Data in North Alaska, U.S.A., Remote Sensing, 8(12), 978; https://doi.org/10.3390/rs8120978
Data archiving is underway for data presented in Figure 6 and will be made available at the NGEE-Arctic data portalhttps://ngee-arctic.ornl.gov/
Data archiving is underway for data presented in Figures 7 and 8 and will be made available athttps://zenodo.org/. Data was collected and retrieved using PhotoSpec (Grossmann et al., 2018) installed at Delta Junction Alaska as part of NASA ABoVE project 80NSSC19M0129.