AI-generated Key Takeaways
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The dataset consists of Landsat 4 TM Collection 1 Tier 1 32-day raw composites, representing scaled, calibrated at-sensor radiance using DN values from orthorectified scenes.
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These composites are generated from all scenes within each 32-day period of the year, with the most recent pixel value being used for the composite.
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The dataset is available from 1982-08-13 to 1993-11-17 and is provided by USGS/Google.
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The composites have a resolution of 30 meters and include multiple bands covering various wavelengths from blue to thermal infrared, plus a BQA quality assessment band.
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Landsat datasets are public domain and can be used without copyright restriction, with acknowledgment of the USGS as the data source encouraged.
- Dataset Availability
- 1982-08-13T00:00:00Z–1993-11-17T00:00:00Z
- Dataset Provider
- USGS/Google
- Tags
Description
These Landsat 4 TM Collection 1 Tier 1 composites are made from Tier 1 orthorectified scenes, using the DN values, representing scaled, calibrated at-sensor radiance.
These composites are created from all the scenes in each 32-day period beginning from the first day of the year and continuing to the 352nd day of the year. The last composite of the year, beginning on day 353, will overlap the first composite of the following year by 20 days. All the images from each 32-day period are included in the composite, with the most recent pixel as the composite value.
Bands
Resolution
30 meters
Bands
| Name | Wavelength | Description | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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B1 |
0.45 - 0.52 μm | Blue |
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B2 |
0.52 - 0.60 μm | Green |
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B3 |
0.63 - 0.69 μm | Red |
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B4 |
0.76 - 0.90 μm | Near infrared |
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B5 |
1.55 - 1.75 μm | Shortwave infrared 1 |
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B6 |
10.40 - 12.50 μm | Thermal Infrared 1. Resampled from 60m to 30m. |
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B7 |
2.08 - 2.35 μm | Shortwave infrared 2 |
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BQA |
Landsat Collection 1 QA Bitmask (See Landsat QA page) |
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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.