These Landsat 4 TM composites are made from Level L1T orthorectified scenes, using the DN values, representing scaled, calibrated at-sensor radiance.
As of May 1, 2017, the USGS is no longer producing Pre-Collection Landsat, and therefore this collection is complete. Please switch to a Collection 1-based dataset. See this documentation page for more information.
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.
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
These Landsat 4 TM composites are made from Level L1T orthorectified scenes, using the DN values, representing scaled, calibrated at-sensor radiance. As of May 1, 2017, the USGS is no longer producing Pre-Collection Landsat, and therefore this collection is complete. Please switch to a Collection 1-based dataset. See this documentation …
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],[],[[["\u003cp\u003eThis Landsat 4 TM dataset is deprecated and has been replaced by a newer Collection 1 dataset (LANDSAT/LT04/C01/T1_8DAY_RAW).\u003c/p\u003e\n"],["\u003cp\u003eThe dataset covers the period from August 21, 1982, to December 11, 1993, and is no longer being updated.\u003c/p\u003e\n"],["\u003cp\u003eIt consists of 8-day composites of Level L1T orthorectified scenes with 30-meter resolution, representing scaled, calibrated at-sensor radiance.\u003c/p\u003e\n"],["\u003cp\u003eUsers are strongly encouraged to transition to the updated Collection 1 dataset for continued Landsat 4 data access.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset is in the public domain and can be used freely with proper USGS acknowledgement.\u003c/p\u003e\n"]]],["This Landsat 4 TM dataset, available from 1982-08-21 to 1993-12-11, consists of 8-day composites from Level L1T orthorectified scenes, using DN values. The USGS stopped producing Pre-Collection Landsat on May 1, 2017, making this collection complete. Users are advised to transition to Collection 1-based datasets. Data includes seven bands (Blue, Green, Red, NIR, SWIR1, SWIR2, Thermal Infrared 1) at 30-meter resolution, plus a QA bitmask. The data is in the public domain, credited to USGS. It is also deprecated, the up to date version is available at LANDSAT/LT04/C01/T1_8DAY_RAW.\n"],null,["# Landsat 4 TM 8-Day Raw Composite [deprecated]\n\n**Caution:** This dataset has been superseded by [LANDSAT/LT04/C01/T1_8DAY_RAW](/earth-engine/datasets/catalog/LANDSAT_LT04_C01_T1_8DAY_RAW). \n\nDataset Availability\n: 1982-08-21T00:00:00Z--1993-12-11T00:00:00Z\n\nDataset Provider\n:\n\n\n [Google](https://earthengine.google.com)\n\nTags\n:\n[8day](/earth-engine/datasets/tags/8day) [landsat](/earth-engine/datasets/tags/landsat) [raw](/earth-engine/datasets/tags/raw) [usgs](/earth-engine/datasets/tags/usgs) \n\n#### Description\n\nThese Landsat 4 TM composites are made from Level L1T orthorectified scenes, using the DN values, representing scaled, calibrated at-sensor radiance.\n\nAs of May 1, 2017, the USGS is no longer producing Pre-Collection Landsat, and therefore this collection is complete. Please switch to a Collection 1-based dataset. See [this documentation page](https://developers.google.com/earth-engine/landsat) for more information.\n\nThese composites are created from\nall the scenes in each\n8-day period beginning from the first day of the year and continuing\nto the 360th day of the year. The last composite of the year,\nbeginning on day 361, will overlap the first composite of the\nfollowing year by 3 days. All the images from each 8-day period are\nincluded in the composite, with the most recent pixel as the composite value.\n\n### Bands\n\n\n**Resolution**\n\n30 meters\n\n**Bands**\n\n| Name | Wavelength | Description |\n|-------|------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `B1` | 0.45 - 0.52 μm | Blue |\n| `B2` | 0.52 - 0.60 μm | Green |\n| `B3` | 0.63 - 0.69 μm | Red |\n| `B4` | 0.76 - 0.90 μm | Near infrared |\n| `B5` | 1.55 - 1.75 μm | Shortwave infrared 1 |\n| `B6` | 10.40 - 12.50 μm | Thermal Infrared 1. Resampled from 60m to 30m. |\n| `B7` | 2.08 - 2.35 μm | Shortwave infrared 2 |\n| `BQA` | | Landsat Collection 1 QA Bitmask ([See Landsat QA page](https://www.usgs.gov/land-resources/nli/landsat/landsat-collection-1-level-1-quality-assessment-band)) |\n| Bitmask for BQA - Bit 0: Designated Fill - 0: No - 1: Yes - Bit 1: Designated Pixel - 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) ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n\n### Terms of Use\n\n**Terms of Use**\n\nLandsat datasets are federally created data\nand therefore reside in the public domain and may be used, transferred, or reproduced without copyright restriction.\n\nAcknowledgement or credit of the USGS as data source should be provided\nby including a line of text citation such as the example shown below.\n\n(Product, Image, Photograph, or Dataset Name) courtesy of\nthe U.S. Geological Survey\n\nExample: Landsat-7 image courtesy of the U.S. Geological Survey\n\nSee the\n[USGS Visual Identity System Guidance](https://www.usgs.gov/information-policies-and-instructions/usgs-visual-identity-system)\nfor further details on proper citation and acknowledgement of USGS products.\n**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.](https://console.cloud.google.com/earth-engine) \n[Landsat 4 TM 8-Day Raw Composite \\[deprecated\\]](/earth-engine/datasets/catalog/LANDSAT_LT4_L1T_8DAY_RAW) \nThese Landsat 4 TM composites are made from Level L1T orthorectified scenes, using the DN values, representing scaled, calibrated at-sensor radiance. As of May 1, 2017, the USGS is no longer producing Pre-Collection Landsat, and therefore this collection is complete. Please switch to a Collection 1-based dataset. See this documentation ... \nLANDSAT/LT4_L1T_8DAY_RAW, 8day,landsat,raw,usgs \n1982-08-21T00:00:00Z/1993-12-11T00:00:00Z \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [](https://doi.org/https://earthengine.google.com)"]]
