Preprints
https://doi.org/10.5194/essd-2021-452
https://doi.org/10.5194/essd-2021-452
31 Mar 2022
 | 31 Mar 2022
Status: this preprint was under review for the journal ESSD but the revision was not accepted.

Vegetation photosynthetic phenology metrics in northern terrestrial ecosystems: a dataset derived from a gross primary productivity product based on solar-induced chlorophyll fluorescence

Jing Fang, Xing Li, Jingfeng Xiao, Xiaodong Yan, Bolun Li, and Feng Liu

Abstract. Vegetation phenology can profoundly modulate the climate-biosphere interactions and thus plays a key role in regulating the terrestrial carbon cycle and the climate. However, most previous phenology studies are based on the traditional vegetation indices, which are inadequate to characterize the seasonal activity of photosynthesis. Here, we generated an annual vegetation photosynthetic phenology dataset with a spatial resolution of 0.05 degree 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 in the Northern Hemisphere. We found that the derived phenology metrics agreed better with in situ observations from the flux tower sites than vegetation indices and MODIS-GPP. Our phenology metrics captured the spatial-temporal patterns of the single and double growing season in the Northern Hemisphere. The double season was mainly from the cropland rotation and ecosystems having two different phenological cycles. In addition, we observed a trend toward advanced SOS in about 62.98 % of the land area, with a mean rate of 0.14 ± 0.01 days year-1, a trend toward delayed EOS in about 61.87 % of the area, with a mean rate of 0.19 ± 0.16 days year-1, and a trend toward extended LOS in about 70.52 % of the area, with a mean rate of 0.33 ± 0.17 days year-1. Our phenology product can be used for validating and developing phenology models or carbon cycle models, for evaluating satellite remote sensing phenology, and for monitoring climate change impacts on terrestrial ecosystems. The data are available at https://doi.org/10.6084/m9.figshare.17195009.v2 (Fang et al. 2021).

Publisher's note: Copernicus Publications remains neutral with regard to jurisdictional claims made in the text, published maps, institutional affiliations, or any other geographical representation in this preprint. The responsibility to include appropriate place names lies with the authors.
Jing Fang, Xing Li, Jingfeng Xiao, Xiaodong Yan, Bolun Li, and Feng Liu

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2021-452', Anonymous Referee #1, 10 May 2022
    • AC1: 'Reply on RC1', Jing Fang, 06 Jul 2022
  • RC2: 'Comment on essd-2021-452', Anonymous Referee #2, 20 Jun 2022
    • RC3: 'Reply on RC2', Anonymous Referee #2, 20 Jun 2022
    • AC2: 'Reply on RC2', Jing Fang, 06 Jul 2022

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2021-452', Anonymous Referee #1, 10 May 2022
    • AC1: 'Reply on RC1', Jing Fang, 06 Jul 2022
  • RC2: 'Comment on essd-2021-452', Anonymous Referee #2, 20 Jun 2022
    • RC3: 'Reply on RC2', Anonymous Referee #2, 20 Jun 2022
    • AC2: 'Reply on RC2', Jing Fang, 06 Jul 2022
Jing Fang, Xing Li, Jingfeng Xiao, Xiaodong Yan, Bolun Li, and Feng Liu

Data sets

Vegetation photosynthetic phenology metrics in northern terrestrial ecosystems: a dataset derived from a gross primary productivity product based on solar-induced chlorophyll fluorescence Jing Fang, Xing Li, Jingfeng Xiao, Xiaodong Yan, Bolun Li, Feng Liu https://doi.org/10.6084/m9.figshare.17195009.v2

Jing Fang, Xing Li, Jingfeng Xiao, Xiaodong Yan, Bolun Li, and Feng Liu

Viewed

Total article views: 1,554 (including HTML, PDF, and XML)
HTML PDF XML Total Supplement BibTeX EndNote
1,158 339 57 1,554 94 55 47
  • HTML: 1,158
  • PDF: 339
  • XML: 57
  • Total: 1,554
  • Supplement: 94
  • BibTeX: 55
  • EndNote: 47
Views and downloads (calculated since 31 Mar 2022)
Cumulative views and downloads (calculated since 31 Mar 2022)

Viewed (geographical distribution)

Total article views: 1,506 (including HTML, PDF, and XML) Thereof 1,506 with geography defined and 0 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 21 Jul 2024
Download
Short summary
The dataset provided the vegetation photosynthetic phenology instead of traditional phenology to represent plant seasonal activities. This dataset had the latest period (2001–2020) and a fine spatial resolution (0.05 degree). Our phenology metrics revealed the spatial-temporal patterns of the multiple growing seasons in the Northern Hemisphere. The dataset will facilitate various research such as developing models, evaluating phenology shifts, and monitoring climate change worldwide.
Altmetrics