AI-generated Key Takeaways
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The Global Land Survey (GLS) 1975 dataset provides a global composite image primarily from Landsat 1-3, with gaps filled by Landsat 4-5, covering the period from 1972-1987.
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This Landsat MSS dataset offers four spectral bands (Green, Red, Near Infrared, and Short-wavelength Infrared) at a 60-meter resolution.
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GLS 1975 data is publicly available and can be used, transferred, or reproduced without copyright restrictions, with proper USGS acknowledgment.
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Earth Engine provides tools for analyzing and visualizing this dataset, offering a code editor and resources for exploring its capabilities.
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The dataset's typical false-color presentation highlights vegetation in red due to the NIR band display.
- Dataset Availability
- 1975-01-01T00:00:00Z–1976-01-01T00:00:00Z
- Dataset Provider
- USGS
- Cadence
- 1 Year
- Tags
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 during the years from 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.
All scenes in the collection are included in this composite image.
Bands
Pixel Size
60 meters
Bands
| Name | Pixel Size | Wavelength | Description |
|---|---|---|---|
10 |
meters | 0.50 - 0.60 μm | Green |
20 |
meters | 600-700 μm | Red |
30 |
meters | 0.70-0.80 μm | Near infrared |
40 |
meters | 0.80-1.10 μm | 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.
Explore with Earth Engine
Code Editor (JavaScript)
var dataset = ee.ImageCollection('LANDSAT/GLS1975_MOSAIC'); 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');