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http://dx.doi.org/10.7319/kogsis.2017.25.2.013

Analysis of MODIS LAI and NDVI Patterns of Broad-leaved Trees by the Timesat Program on the Korean Peninsula  

Seo, Dae Kyo (Department of Smart ICT Convergence, Konkuk University)
Lee, Jeong Min (Department of Advanced Technology Fusion, Konkuk University)
Lim, Ye Seul (Plant Conservation Division, Korea National Arboretum)
Han, Sang Won (Department of Civil Engineering, Konkuk University)
Pyeon, Mu Wook (Department of Civil Engineering, Konkuk University)
Publication Information
Journal of Korean Society for Geospatial Information Science / v.25, no.2, 2017 , pp. 13-19 More about this Journal
Abstract
This paper analyzed MODIS data from 2006 to 2013 to determine relationship between meteorological changes and vegetation index. The experimental area was divided into the northern, central and southern regions according to the regional characteristics, and the smoothed MODIS LAI and NDVI were obtained using Timesat. In the case of precipitation, MODIS NDVI had correlation coefficients of 0.66, 0.44 and 0.35 in the northern, central and southern regions and the correlation was the highest in the northern region. In the case of temperature, MODIS LAI had correlation coefficients of 0.66, 0.64 and 0.68, and MODIS NDVI had 0.89, 0.89 and 0.80. The correlation of MODIS NDVI was higher and showed similar positive correlation regardless of region. In addition, The accuracy between Timesat plant seasonal start and actual plant seasonal start in MODIS NDVI was higher than MODIS LAI. The average error in MODIS LAI was 19 days in the central region and 20 days in the southern region. And the average error in MODIS NDVI was 6 days in the central region and 8 days in the southern region.
Keywords
MODIS LAI; MODIS NDVI; Timesat; Weather Changes; Plant Season;
Citations & Related Records
연도 인용수 순위
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