Google Earth Engine ——基于ENVISAT的中分辨率成像光谱仪全球土地覆盖300米分辨率数据集

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GlobCover2009是欧空局基于ENVISAT的MERIS数据创建的2009年全球土地覆盖图，分辨率为300米。该地图包含22个土地覆盖类别，如农作物、森林和水体，并提供质量评估信息。数据可用于教育和科学研究，由ESA和卢湾天主教大学提供，并需正确引用来源。

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GlobCover 2009 is a global land cover map based on ENVISAT's Medium Resolution Imaging Spectrometer (MERIS) Level 1B data acquired in full resolution mode with a spatial resolution of approximately 300 meters.

GlobCover 2009是基于ENVISAT的中分辨率成像光谱仪（MERIS）1B级数据的全球土地覆盖图，以全分辨率模式获取，空间分辨率约为300米。

Dataset Availability

2009-01-01T00:00:00 - 2010-01-01T00:00:00

Dataset Provider

ESA

Collection Snippet

ee.Image("ESA/GLOBCOVER_L4_200901_200912_V2_3")

Resolution

300 meters

Bands Table

Name	Description
landcover	The land cover map is derived by an automatic and regionally-tuned classification of a time series of global MERIS FR mosaics for the year 2009. The global land cover map counts 22 land cover classes defined with the United Nations (UN) Land Cover Classification System (LCCS).
qa	Binary quality band indicating whether the reference dataset has been used instead of the output of the GlobCover classification scheme.
qa Bitmask	Bit 0: Information on dataset used for classification 0: Areas classified using the output of the GlobCover classification scheme. 1: Areas classified using the reference dataset.

Class Table: landcover

Value	Color Value	Description
11	#aaefef	Post-flooding or irrigated croplands
14	#ffff63	Rainfed croplands
20	#dcef63	Mosaic cropland (50-70%) / vegetation (grassland, shrubland, forest) (20-50%)
30	#cdcd64	Mosaic vegetation (grassland, shrubland, forest) (50-70%) / cropland (20-50%)
40	#006300	Closed to open (>15%) broadleaved evergreen and/or semi-deciduous forest (>5m)
50	#009f00	Closed (>40%) broadleaved deciduous forest (>5m)
60	#aac700	Open (15-40%) broadleaved deciduous forest (>5m)
70	#003b00	Closed (>40%) needleleaved evergreen forest (>5m)
90	#286300	Open (15-40%) needleleaved deciduous or evergreen forest (>5m)
100	#788300	Closed to open (>15%) mixed broadleaved and needleleaved forest (>5m)
110	#8d9f00	Mosaic forest-shrubland (50-70%) / grassland (20-50%)
120	#bd9500	Mosaic grassland (50-70%) / forest-shrubland (20-50%)
130	#956300	Closed to open (>15%) shrubland (<5m)
140	#ffb431	Closed to open (>15%) grassland
150	#ffebae	Sparse (>15%) vegetation (woody vegetation, shrubs, grassland)
160	#00785a	Closed (>40%) broadleaved forest regularly flooded - Fresh water
170	#009578	Closed (>40%) broadleaved semi-deciduous and/or evergreen forest regularly flooded - saline water
180	#00dc83	Closed to open (>15%) vegetation (grassland, shrubland, woody vegetation) on regularly flooded or waterlogged soil - fresh, brackish or saline water
190	#c31300	Artificial surfaces and associated areas (urban areas >50%) GLOBCOVER 2009
200	#fff5d6	Bare areas
210	#0046c7	Water bodies
220	#ffffff	Permanent snow and ice
230	#743411	Unclassified

var dataset = ee.Image('ESA/GLOBCOVER_L4_200901_200912_V2_3');
var landcover = dataset.select('landcover');
Map.setCenter(-88.6, 26.4, 3);
Map.addLayer(landcover, {}, 'Landcover');

数据声明：

GlobCover产品由欧空局和卢湾天主教大学处理。它们由欧空局向公众提供。您可以出于教育和/或科学目的使用GlobCover土地覆盖图，而无需支付任何费用，条件是您必须将ESA和卢万天主教大学作为GlobCover产品的来源。

数据引用：

ESA 2010 and UCLouvain. ESA Data User Element