Applicability of Green-Red Vegetation Index for Remote Sensing of Vegetation Phenology

Remote Sensing

Takeshi Motohka¹  Kenlo Nishida Nasahara¹  Hiroyuki Oguma² 

[1] Graduate School of Life and Environment Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8572, Japan; E-Mail:;National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan; E-Mail:

关键词: phenology;    remote sensing;    spectral reflectance;    digital camera;    Green-Red Vegetation Index;    phenological eyes network;   

DOI  :  10.3390/rs2102369

来源: mdpi

【 摘 要 】

We evaluated the use of the Green-Red Vegetation Index (GRVI) as a phenological indicator based on multiyear stand-level observations of spectral reflectance and phenology at several representative ecosystems in Japan. The results showed the relationships between GRVI values and the seasonal change of vegetation and ground surface with high temporal resolution. We found that GRVI has the following advantages as a phenological indicator: (1) “GRVI = 0” can be a site-independent single threshold for detection of the early phase of leaf green-up and the middle phase of autumn coloring, and (2) GRVI can show a distinct response to subtle disturbance and the difference of ecosystem types.

【 授权许可】

CC BY   
© 2010 by the authors; licensee MDPI, Basel, Switzerland.