Ground-based digital camera (RGB), spectroscopy, and pigment data from Toolik Vegetation Grid, Toolik Lake, Alaska ...
Ground-based spectroscopy measurements acquired systematically within the Toolik Vegetation Grid in the 2016 growing season. All data were collected in a subset of 1 x 1 m long-term monitoring plots representing three distinct vegetation communities three times representing early, peak and late seas...
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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PANGAEA
2018
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| Online Access: | https://dx.doi.org/10.1594/pangaea.886340 https://doi.pangaea.de/10.1594/PANGAEA.886340 |
| Summary: | Ground-based spectroscopy measurements acquired systematically within the Toolik Vegetation Grid in the 2016 growing season. All data were collected in a subset of 1 x 1 m long-term monitoring plots representing three distinct vegetation communities three times representing early, peak and late season. Spectral data were acquired using a GER 1500 field spectrometer (350-1050 nm; 512 bands, spectral resolution 3 nm, spectral sampling 1.5 nm, and 8! field of view). Spectra were collected under clear weather conditions at the highest solar zenith angle between 10:00 and 14:00 local time. Data were collected at nadir approximately 1 m off the ground resulting in a Ground Instantaneous Field of View (GIFOV) of approximately 15 cm in diameter. Nine point measurements of upwelling radiance (Lup) were collected in each plot and averaged to characterize the spectral variability and to reduce noise. Downwelling radiance (Ldown) was measured as the reflectance from a white Spectralon© plate. Surface reflectance (R) was ... : Supplement to: Beamish, Alison Leslie; Coops, Nicholas; Hermosilla, T; Chabrillat, Sabine; Heim, Birgit (2018): Monitoring pigment-driven vegetation changes in a low-Arctic tundra ecosystem using digital cameras. Ecosphere, 9(2), e02123 ... |
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