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Following are basic information on the "High-resolution Multi-temporal Global Urban Land Dataset"

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SPECIFICATIONS:
		
	Spatial Reference	GCS_WGS_1984
	Spatial Resolution	30 meters
	Extent				Global Land Coverage (continents and islands)
	Years				1990, 1995, 2000, 2005, 2010
	File Type			GeoTIFF
	Bit Depth			Unsigned Integer 8 bit

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CODE VALUES:

	0		Non-urban Land
	1		Urban Land

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FILE NAMING CONVENTION: 

	URBAN_yyyy_tileID.tif
		yyyy	four-digit year
		tileID	10 x 10 degree tile ID
		
	EXAMPLE:
	“URBAN_1990_41.tif”. "1990" refers to year 1990, and "41" refers to tile ID 41. 
	
	The tile IDs and their spatial coverages are available in the EMF file “Data_grid.emf” and the ESRI Shapefile “Data_grid.shp”

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For further information, please contact Prof. Xiaoping Liu: Liuxp3@mail.sysu.edu.cn.

Last update 2018-08-04.

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