Phenology Images (5-Year Long Term Average)

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Presentation transcript:

Phenology Images (5-Year Long Term Average) VIP Lab September 21, 2011

Introduction The following global images were taken from AVHRR (1980 to 2000) and MODIS (2000 to 2010) phenology metrics. Phenology metrics Start of the season (SOS) Length of the season (LOS) End of the season (EOS)

Objective To determine areas where phenology metrics derived from NDVI and EVI2 differ from each other.

Phenology, 1980_1985 NDVI EVI2

Phenology, 1985_1990 NDVI EVI2

Phenology, 1990_1995 NDVI EVI2

Phenology, 1995_2000 NDVI EVI2

Phenology, 2000_2005 NDVI EVI2

Phenology, 2005_2010 NDVI EVI2

Conclusions This table shows whether NDVI differs or not from EVI2 (i.e. NDVI (<, > or =) EVI2) Area 1980-1985 1985_1990 1990_1995 1995_2000 2000_2005 2005_2010 SOS LOS EOS Desert (AUS) = > Snow (Asia) Dense Vegetation (Amazon) < Deciduous (US East Coast)