Free access to the global human settlements layer (ghsl) dataset from Gee

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GHSL It depends on the design and implementation of new spatial data mining technology , Allow automated processing and extraction of analysis and knowledge from large amounts of heterogeneous data , These data include ： The global 、 Fine scale satellite image data stream 、 Census data and population sources or voluntary geographic information sources .

These data contain data from Landsat Image set （GLS1975、GLS1990、GLS2000 and ad-hoc Landsat 8 collection 2013/2014） Derived information about the built-up existence of the multi temporal information layer .

The data is through  2015 year The global human settlements layer approach .

For more information , Please visit ：https ://ghsl.jrc.ec.europa.eu/ghs_bu.php and https://ghsl.jrc.ec.europa.eu/documents/GHSL_data_access.pdf.

Global human settlements layer (GHSL) The project was approved by the European Commission 、 Support from the joint research centre and the regional and Urban Policy Directorate .GHSL Generate new global spatial information 、 Evidence based analysis and description of the knowledge of human existence on earth .

Dataset availability

1975-01-01T00:00:00Z - 2014-12-31T00:00:00

Data set provider

European community joint research centre

Earth engine :

ee.Image("JRC/GHSL/P2016/BUILT_LDSMT_GLOBE_V1")

The resolution of the
38 rice

Band

full name	Sensitive	maximum	describe
built			Multi temporal establishment exists
cnfd	0	255	2014 The blank filled confidence grid of completed classes summarized in .0 = 100% There is no built confidence ,127 = 50% Decision truncation ,255 = 100% There is confidence in the completion of
dm			Mosaic of data availability in different periods .

Category establishment table

value	Color	describe
1	0c1d60	Surface of the water
2	000000	There is no land at any time
3	448564	from 2000 Year to 2014 established
4	70daa4	from 1990 Year to 2000 established
5	83ffbf	from 1975 Year to 1990 Completed in 2000
6	ffffff	Built in 1975 year

dm Class table

value	Color	describe
1		No data availability at any time
2		1975 year
3		1990
4		1975 Years and 1990 year
5		2000
6		1975 Years and 2000 year
7		1990 Years and 2000 year
8		1975 year 、1990 Years and 2000 year
9		2015
10		1975 Years and 2015 year
11		1990 Years and 2015 year
12		1975 year 、1990 Years and 2015 year
13		2000 Years and 2015 year
14		1975 year 、2000 Years and 2015 year
15		1990 year 、2000 Years and 2015 year
16		1995、1190、2000 and 2015

Code ：

var dataset = ee.Image('JRC/GHSL/P2016/BUILT_LDSMT_GLOBE_V1');var builtUpMultitemporal = dataset.select('built');var visParams = {  min: 1.0,  max: 6.0,  palette: ['0c1d60', '000000', '448564', '70daa4', '83ffbf', 'ffffff'],};Map.setCenter(8.9957, 45.5718, 12);Map.addLayer(builtUpMultitemporal, visParams, 'Built-Up Multitemporal');

 

Terms of use

GHSL from EC JRC As open and free data production . Authorize reuse , The premise is to confirm the source . For more information , Please read the conditions of use （ European Commission reuse and copyright notice ）.

Citations:

• Pesaresi, Martino; Ehrilch, Daniele; Florczyk, Aneta J.; Freire, Sergio; Julea, Andreea; Kemper, Thomas; Soille, Pierre; Syrris, Vasileios (2015): GHS built-up grid, derived from Landsat, multitemporal (1975, 1990, 2000, 2014). European Commission, Joint Research Centre (JRC) [Dataset] PID: Joint Research Centre Data Catalogue - GHS-BUILT R2015B - GHS built-up grid, derived from... - European Commission

• Pesaresi, Martino; Ehrlich, Daniele; Florczyk, Aneta J.; Freire, Sergio; Julea, Andreea; Kemper, Thomas; Soille, Pierre; Syrris, Vasileios (2015): GHS built-up confidence grid, derived from Landsat, multitemporal (1975, 1990, 2000, 2014). European Commission, Joint Research Centre (JRC) [Dataset] PID: Joint Research Centre Data Catalogue - GHS-BUILT R2015B - GHS built-up confidence grid, d... - European Commission

• Pesaresi, Martino; Ehrlich, Daniele; Florczyk, Aneta J.; Freire, Sergio; Julea, Andreea; Kemper, Thomas; Soille, Pierre; Syrris, Vasileios (2015): GHS built-up datamask grid derived from Landsat, multitemporal (1975, 1990, 2000, 2014). European Commission, Joint Research Centre (JRC) [Dataset] PID: Joint Research Centre Data Catalogue - GHS-BUILT R2015B - GHS built-up datamask grid, der... - European Commission

 

 

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