Landsat 8 Collection 1 Tier 1 8-Day TOA Reflectance Composite

Page Summary

• The dataset consists of Landsat 8 Collection 1 Tier 1 composites created from orthorectified scenes, using top-of-atmosphere (TOA) reflectance.

• Composites are generated from all scenes within each 8-day period, with the most recent pixel being used as the composite value.

• The dataset includes various bands with different pixel sizes and wavelengths, including visible, infrared, and thermal bands, along with a quality assessment band.

• Landsat datasets are public domain and can be used without copyright restriction, though acknowledgement of the USGS as the data source is recommended.

Dataset Availability

2013-04-07T00:00:00Z–2022-01-01T00:00:00Z

Dataset Provider

Google

Earth Engine Snippet

ee.ImageCollection("LANDSAT/LC08/C01/T1_8DAY_TOA")

Tags

8day landsat toa usgs

Description

These Landsat 8 Collection 1 Tier 1 composites are made from Tier 1 orthorectified scenes, using the computed top-of-atmosphere (TOA) reflectance. See Chander et al. (2009) for details on the TOA computation.

These composites are created from all the scenes in each 8-day period beginning from the first day of the year and continuing to the 360th day of the year. The last composite of the year, beginning on day 361, will overlap the first composite of the following year by 3 days. All the images from each 8-day period are included in the composite, with the most recent pixel as the composite value.

Bands

Bands

Name	Pixel Size	Wavelength	Description
B1	30 meters	0.43 - 0.45 μm	Coastal aerosol
B2	30 meters	0.45 - 0.51 μm	Blue
B3	30 meters	0.53 - 0.59 μm	Green
B4	30 meters	0.64 - 0.67 μm	Red
B5	30 meters	0.85 - 0.88 μm	Near infrared
B6	30 meters	1.57 - 1.65 μm	Shortwave infrared 1
B7	30 meters	2.11 - 2.29 μm	Shortwave infrared 2
B8	15 meters	0.52 - 0.90 μm	Band 8 Panchromatic
B9	15 meters	1.36 - 1.38 μm	Cirrus
B10	30 meters	10.60 - 11.19 μm	Thermal infrared 1, resampled from 100m to 30m
B11	30 meters	11.50 - 12.51 μm	Thermal infrared 2, resampled from 100m to 30m
BQA	30 meters		Landsat Collection 1 QA Bitmask (See Landsat QA page)
Bitmask for BQA Bit 0: Designated Fill 0: No 1: Yes Bit 1: Terrain Occlusion 0: No 1: Yes Bits 2-3: Radiometric Saturation 0: No bands contain saturation 1: 1-2 bands contain saturation 2: 3-4 bands contain saturation 3: 5 or more bands contain saturation Bit 4: Cloud 0: No 1: Yes Bits 5-6: Cloud Confidence 0: Not Determined / Condition does not exist. 1: Low, (0-33 percent confidence) 2: Medium, (34-66 percent confidence) 3: High, (67-100 percent confidence) Bits 7-8: Cloud Shadow Confidence 0: Not Determined / Condition does not exist. 1: Low, (0-33 percent confidence) 2: Medium, (34-66 percent confidence) 3: High, (67-100 percent confidence) Bits 9-10: Snow / Ice Confidence 0: Not Determined / Condition does not exist. 1: Low, (0-33 percent confidence) 2: Medium, (34-66 percent confidence) 3: High, (67-100 percent confidence) Bits 11-12: Cirrus Confidence 0: Not Determined / Condition does not exist. 1: Low, (0-33 percent confidence) 2: Medium, (34-66 percent confidence) 3: High, (67-100 percent confidence)

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.

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Landsat 8 Collection 1 Tier 1 8-Day TOA Reflectance Composite

These Landsat 8 Collection 1 Tier 1 composites are made from Tier 1 orthorectified scenes, using the computed top-of-atmosphere (TOA) reflectance. See Chander et al. (2009) for details on the TOA computation. These composites are created from all the scenes in each 8-day period beginning from the first day of …

LANDSAT/LC08/C01/T1_8DAY_TOA, 8day,landsat,toa,usgs

2013-04-07T00:00:00Z/2022-01-01T00:00:00Z

Google Earth Engine

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