The challenge to detect plant phenology using two green bands of GCOM-C/SGLI

Tomoko Kawaguchi Akitsu; Kenlo Nishida Nasahara

Presentation information

[E] Oral

A (Atmospheric and Hydrospheric Sciences ) » A-CG Complex & General

[A-CG38] Satellite Earth Environment Observation

Mon. May 23, 2022 10:45 AM - 12:15 PM 104 (International Conference Hall, Makuhari Messe)

convener:Riko Oki(Japan Aerospace Exploration Agency), convener:Yoshiaki HONDA(Center for Environmental Remote Sensing, Chiba University), Yukari Takayabu(Atmosphere and Ocean Research Institute, the University of Tokyo), convener:Tsuneo Matsunaga(Center for Global Environmental Research and Satellite Observation Center, National Institute for Environmental Studies), Chairperson:Hiroshi Murakami(Earth Observation Research Center, Japan Aerospace Exploration Agency)

11:30 AM - 11:45 AM

[ACG38-10] The challenge to detect plant phenology using two green bands of GCOM-C/SGLI

*Tomoko Kawaguchi Akitsu¹, Kenlo Nishida Nasahara² (1.Japan Aerospace Exploration Agency, 2.University of Tsukuba)

Keywords:GCOM-C, SGLI, Phenology, PRI, Detecting the matured leaves season

Plant phenology is the key factor of vegetation productivity. Therefore, numerous studies have focused on detecting leaf onset and offset using the vegetation index (such as Normalized Difference Vegetation Index, NDVI, and Enhanced Vegetation Index, EVI). However, the definition and detection of the offset day remain obscure. Furthermore, although many studies detect the onset and completion of leaf expansion, few studies distinguish the matured leaves season from the young (but sufficiently large) leaves season. The GCOM-C/SGLI can detect the Photochemical Reflectance Index (PRI) using two green bands. The two green bands are useful for detecting PRI and the above-mentioned phenological stages.