Earth Observation, Spatial Data Quality, and Neglected Tropical Diseases
Fig 1
Examples of MODIS products for the Ningxia Hui Autonomous Region (NHAR), China (top left).
The top right image shows the 500 m x 500 m annual land cover map (MCD12Q1) for 2012. It uses the IGBP classification scheme (see S1 Text). Only classes covering more than 1% of the NHAR area are shown. The second row shows MODIS (MOD13A3) 1 x 1 km NDVI (bottom left) and pixel reliability (bottom right) maps for July 2012. Pixels flagged as “check metadata” were still of high quality, but flagged because of a moderate atmospheric aerosol load, which can reduce image quality.