Seasonal Variation of MODIS Vegetation Indexes and Their Statistical Relationship With Climate Over the Subtropic Evergreen Forest in Zhejiang, China

Author

Deng, Fangping ; Su, Gaoli ; Liu, Chuang

Author_Institution

Inst. of Geographic Sci. & Natural Resource Res., Chinese Acad. of Sci., Beijing

Volume

4

Issue

2

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

236

Lastpage

240

Abstract

Moderate Resolution Imaging Spectroradiometer (MODIS) 16-day 1-km vegetation index products, daily temperature, photosynthetically active radiation (PAR), and precipitation from 2001 to 2004 were utilized to analyze the temporal variations of the MODIS normalized difference vegetation index (NDVI) and enhanced vegetation index (EVI), as well as their correlations with climate over the evergreen forested sites in Zhejiang-a humid subtropical region in the southeast of China. The results showed that both NDVI and EVI could discern the seasonal variation of the evergreen forests. Attributed to the sufficient precipitation in the study area, the growth of vegetation is mainly controlled by energy; as a result, NDVI, and especially EVI, is more correlated with temperature and PAR than precipitation. Compared with NDVI, EVI is more sensitive to climate condition and is a better indicator to study vegetation variations in the study region

Keywords

atmospheric precipitation; atmospheric techniques; atmospheric temperature; climatology; correlation methods; forestry; radiometry; vegetation mapping; AD 2001 to 2004; China; MODIS; Moderate Resolution Imaging Spectroradiometer; Zhejiang; atmospheric precipitation; atmospheric temperature; climate; correlation analysis; enhanced vegetation index; normalized difference vegetation index; photosynthetically active radiation; statistical relationship; subtropic evergreen forest; Image analysis; Image resolution; MODIS; Radiometry; Remote sensing; Spectroradiometers; Temperature control; Temperature distribution; Temperature sensors; Vegetation mapping; Correlation analysis; Moderate Resolution Imaging Spectroradiometer (MODIS); enhanced vegetation index (EVI); normalized difference vegetation index (NDVI);

fLanguage

English

Journal_Title

Geoscience and Remote Sensing Letters, IEEE

Publisher

ieee

ISSN

1545-598X

Type

jour

DOI

10.1109/LGRS.2006.888844

Filename

4156153