Landsat Global Land Survey 1975

AI-generated Key Takeaways

• The Global Land Survey (GLS) 1975 dataset provides global imagery from the Landsat Multispectral Scanner (MSS) primarily acquired by Landsat 1-3 between 1972 and 1983.

• It includes four spectral bands (Green, Red, Near Infrared, and Short-wavelength Infrared) with a resolution of 60 meters.

• Landsat datasets are public domain and can be used freely with proper citation to the U.S. Geological Survey.

• The dataset is available in Earth Engine and can be visualized using false color composites highlighting vegetation.

• Gaps in Landsat 1-3 data within the GLS 1975 collection were filled using Landsat 4-5 imagery from 1982-1987.

Dataset Availability

1972-07-25T00:00:00Z–1983-02-20T00:00:00Z

Dataset Provider

USGS

Earth Engine Snippet

ee.ImageCollection("LANDSAT/GLS1975")

Tags

global gls landsat radiance satellite-imagery usgs

Description

The Global Land Survey (GLS) 1975 is a global collection of imagery from the Landsat Multispectral Scanner (MSS). Most scenes were acquired by Landsat 1-3 in 1972-1983. A few gaps in the Landsat 1-3 data have been filled with scenes acquired by Landsat 4-5 during the years 1982-1987. These data contain 4 spectral bands: Green, Red, an NIR band, and a SWIR band. In the typical False-color presentation, the images appear red because the NIR band, displayed as red, highlights vegetation.

Bands

Pixel Size
60 meters

Bands

Name	Pixel Size	Wavelength	Description
10	meters	500-600 nm	Green
20	meters	600-700 nm	Red
30	meters	700-800 nm	Near infrared
40	meters	800-1100 nm	Short-wavelength infrared

Terms of Use

Terms of Use

Landsat datasets are federally created data and therefore reside in the public domain and may be used, transferred, or reproduced without copyright restriction.

Acknowledgement or credit of the USGS as data source should be provided by including a line of text citation such as the example shown below.

(Product, Image, Photograph, or Dataset Name) courtesy of the U.S. Geological Survey

Example: Landsat-7 image courtesy of the U.S. Geological Survey

See the USGS Visual Identity System Guidance for further details on proper citation and acknowledgement of USGS products.

Citations

Citations:

• GLS 1975 image courtesy of the U.S. Geological Survey

Explore with Earth Engine

Important: Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please register for Earth Engine access.

Code Editor (JavaScript)

var dataset = ee.ImageCollection('LANDSAT/GLS1975');
var falseColor = dataset.select(['30', '20', '10']);
var falseColorVis = {
  gamma: 1.6,
};
Map.setCenter(44.517, 25.998, 5);
Map.addLayer(falseColor, falseColorVis, 'False Color');

Open in Code Editor

Landsat Global Land Survey 1975

The Global Land Survey (GLS) 1975 is a global collection of imagery from the Landsat Multispectral Scanner (MSS). Most scenes were acquired by Landsat 1-3 in 1972-1983. A few gaps in the Landsat 1-3 data have been filled with scenes acquired by Landsat 4-5 during the years 1982-1987. These data …

LANDSAT/GLS1975, global,gls,landsat,radiance,satellite-imagery,usgs

1972-07-25T00:00:00Z/1983-02-20T00:00:00Z

-90 -180 90 180

Google Earth Engine

https://developers.google.com/earth-engine/datasets