The MODIS vegetation index product MOD13Q1 was applied in this study to identify the dynamic
change in rice NDVI. The MOD13Q1 product is a composite of eight layers including NDVI, EVI,
and reflectance at red, near-infrared, and blue wavelength. For this study area, four tiles of the MODIS
product image (h27/v4, h27/v5, h28/v4, and h28/v5) are required to cover the entire region. The tiles
from July through September between 2000 and 2011 were downloaded via the Data Pool Tool
supplied by the USGS Land Processes Distributed Active Archive Center (LP DAAC). The tiles were
then reprojected from Sinusoidal to UTM projection and mosaicked into one image with MODIS
Reprojection tool, and then the outline of North Korea was extracted with ArcGis 10