Seasonal dynamic pattern analysis on global FPAR derived from AVHRR GIMMS NDVI  

作　　者：Dailiang Peng Bing Zhang Liangyun Liu Dongmei Chen Hongliang Fang Yong Hu 

机构地区：[1]Center for Earth Observation and Digital Earth,Chinese Academy of Sciences,Beijing,China [2]Key Laboratory of Digital Earth,Chinese Academy of Sciences,Beijing,China [3]Department of Geography,Queen’s University,Kingston,ON,Canada [4]LREIS,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing,China

出　　处：《International Journal of Digital Earth》2012年第5期439-455,共17页国际数字地球学报（英文）

基　　金：funded by the National Basic Research Program of China(contract:2009CB723902),Key Project of Digital Earth Science Platform CEODE(contract:Y01002101A),National Natural Science Foundation of China(contract:41001205/D0106).The authors acknowledge the following data support:the AVHRR GIMMS NDVI from Global Land Cover Facility(GLCF);Globcover products from European Space Agency(ESA)and the ESA Globcover Project led by Medium Resolution Imaging Spectrometer Instrument(MERIS)France;temperature,precipitation from National Climatic Data Center(NCDC);MODIS FPAR product from the Warehouse Inventory Search Tool provides access to a complete data record of all MODIS and ASTER products available from the LP DAAC,respectively.

摘　　要：The purpose of this paper is to develop Advanced Very High Resolution Radiometer(AVHRR)Global Inventory Modelling and Mapping Studies(GIMMS)Normalised Difference Vegetation Index(NDVI;AVHRR GIMMS NDVI for short)based fraction of absorbed photosynthetically active radiation(FPAR)from 1982 to 2006 and focus on their seasonal and spatial patterns analysis.The available relationship between FPAR and NDVI was used to calculate FPAR values from 1982 to 2006 and validated by Moderate-resolution Imaging Spectroradiometer(MODIS)FPAR product.Then,the seasonal dynamic patterns were analysed,as well as the driving force of climatic factors.Results showed that there was an agreement between FPAR values from this study and those of the MODIS product in seasonal dynamic,and the spatial patterns of FPARvary with vegetation type distribution and seasonal cycles.The time series of average FPAR revealed a strong seasonal variation,regular periodic variations from January 1982 to December 2006,and opposite patterns between the Northern and Southern Hemispheres.Evergreen vegetation FPARvalues were close to 0.7.A clear single-peak curve was observed between 308N and 808N?an area covered by deciduous vegetation.In the Southern Hemisphere,the time series fluctuations of FPAR averaged by 0.78 latitude zones were not clear compared to those in the Northern Hemisphere.A significant positive correlation(PB0.01)was observed between the seasonal variation of temperature and precipitation and FPAR over most other global meteorological sites.

关 键 词：global FPAR seasonal pattern AVHRR GIMMS NDVI 

分 类 号：Q94[生物学—植物学]