This product provides annual (2001-2020) 0.05 degree vegetation photosynthetic phenology (i.e., start of season-SOS; end of season-EOS; length of season-LOS) in terrestrial ecosystems of the Northern Hemisphere. The files includes two types: first growing season in ecosystems of the single and the double growing season; second growing season in ecosystems of the double growing season.
Use the GOSIF-GPP dataset from 2001 to 2020 to derive the large-scale phenological indicators for this study. To evaluate the phenological estimation based on GOSIF-GPP, we used daily GPP data from the EC flux tower of the northern biome, which was based on the average variable star threshold (VUT) of the FLUXNET2015 dataset.
Here, we generated an annual vegetation photosynthetic phenology dataset with a spatial resolution of 0.05 degrees from 2001 to 2020, using the latest gross primary productivity product based on solar-induced chlorophyll fluorescence (GOSIF-GPP). We combined smoothing splines with multiple change-point detection to retrieve the phenology metrics: start of the growing season (SOS), end of the growing season (EOS), and length of growing season (LOS) for terrestrial ecosystems above 30° N latitude (Northern Biomes). Our phenology product can be used to validate and develop phenology or carbon cycle models and monitor the climate change impacts on terrestrial ecosystems.
The data quality is good.
| # | number | name | type |
| 1 | 32101349 | National Natural Science Foundation of China |
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CSTR:11738.11.NCDC.FIGSHARE.DB6619.2024
10.6084/m9.figshare.17195009.v2