Spatiotemporal variations of satellite-derived phenology in the Tibetan Plateau

Author

Lu, Linlin ; Li, Qingting ; Wang, Cuizhen ; Guo, Huadong ; Zhang, Li

Author_Institution

Center for Earth Obs. & Digital Earth, Beijing, China

fYear

2012

fDate

22-27 July 2012

Firstpage

6451

Lastpage

6454

Abstract

The ecosystem of Tibetan Plateau is fragile and sensitive to global climate change. Land surface phenology detects the change of terrestrial ecosystems at the regional and global scale. In this study, we investigated the spatial and temporal variation of vegetation phenology in the Tibetan Plateau using GIMMS normalized difference vegetation index (NDVI) dataset from 1982 to 2003.The results show that the changing trends of phenological metrics varied strongly across the Tibetan Plateau during the study period. In the southwest of TP, the start of season(SOS) advanced and delayed in the east from 1982 to 2003. For the end of season (EOS), it advanced in the east and delayed in the west. Therefore, the length of growing season is shortened in the eastern region of TP, whereas it is extended in the southwest.

Keywords

vegetation; AD 1982 to 2003; GIMMS NDVI dataset; Tibetan Plateau ecosystem; global climate change; land surface phenology; normalized difference vegetation index; phenological metrics; satellite-derived phenology; terrestrial ecosystems; vegetation phenology; Earth; Earth Observing System; Land surface; Market research; Meteorology; Vegetation mapping; NDVI; Tibetan Plateau; phenology; variation;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International

Conference_Location

Munich

ISSN

2153-6996

Print_ISBN

978-1-4673-1160-1

Electronic_ISBN

2153-6996

Type

conf

DOI

10.1109/IGARSS.2012.6352124

Filename

6352124