Google Earth Engine ——LANDSAT8—

Landsat 8 Collection 1 Tier 1 calibrated top-of-atmosphere (TOA) reflectance. Calibration coefficients are extracted from the image metadata. See Chander et al. (2009) for details on the TOA computation.

Landsat 8 Collection 1 Tier 1校准的大气层顶部（TOA）反射率。校准系数从图像元数据中提取。关于TOA计算的细节，见Chander等人（2009）。

Dataset Availability

2013-04-11T00:00:00 - 2021-09-12T00:00:00

Dataset Provider

USGS/Google

Collection Snippet

ee.ImageCollection("LANDSAT/LC08/C01/T1_TOA")

Bands Table

Name	Description	Resolution	Wavelength
B1	Coastal aerosol	30 meters	0.43 - 0.45 µm
B2	Blue	30 meters	0.45 - 0.51 µm
B3	Green	30 meters	0.53 - 0.59 µm
B4	Red	30 meters	0.64 - 0.67 µm
B5	Near infrared	30 meters	0.85 - 0.88 µm
B6	Shortwave infrared 1	30 meters	1.57 - 1.65 µm
B7	Shortwave infrared 2	30 meters	2.11 - 2.29 µm
B8	Band 8 Panchromatic	15 meters	0.52 - 0.90 µm
B9	Cirrus	15 meters	1.36 - 1.38 µm
B10	Thermal infrared 1, resampled from 100m to 30m	30 meters	10.60 - 11.19 µm
B11	Thermal infrared 2, resampled from 100m to 30m	30 meters	11.50 - 12.51 µm
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))	30 meters
BQA Bitmask	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)

Name	Type	Description
BPF_NAME_OLI	String	The file name for the Bias Parameter File (BPF) used to generate the product, if applicable. This only applies to products that contain OLI bands.
BPF_NAME_TIRS	String	The file name for the Bias Parameter File (BPF) used to generate the product, if applicable. This only applies to products that contain TIRS bands.
CLOUD_COVER	Double	Percentage cloud cover (0-100), -1 = not calculated.
CLOUD_COVER_LAND	Double	Percentage cloud cover over land (0-100), -1 = not calculated.
COLLECTION_CATEGORY	String	Tier of scene. (T1 or T2)
COLLECTION_NUMBER	Double	Number of collection.
CPF_NAME	String	Calibration parameter file name.
DATA_TYPE	String	Data type identifier. (L1T or L1G)
DATE_ACQUIRED	String	Image acquisition date. "YYYY-MM-DD"
DATUM	String	Datum used in image creation.
EARTH_SUN_DISTANCE	Double	Earth sun distance in astronomical units (AU).
ELEVATION_SOURCE	String	Elevation model source used for standard terrain corrected (L1T) products.
ELLIPSOID	String	Ellipsoid used in image creation.
EPHEMERIS_TYPE	String	Ephemeris data type used to perform geometric correction. (Definitive or Predictive)
FILE_DATE	Double	File date in milliseconds since epoch.
GEOMETRIC_RMSE_MODEL	Double	Combined Root Mean Square Error (RMSE) of the geometric residuals (metres) in both across-track and along-track directions measured on the GCPs used in geometric precision correction. Not present in L1G products.
GEOMETRIC_RMSE_MODEL_X	Double	RMSE of the X direction geometric residuals (in metres) measured on the GCPs used in geometric precision correction. Not present in L1G products.
GEOMETRIC_RMSE_MODEL_Y	Double	RMSE of the Y direction geometric residuals (in metres) measured on the GCPs used in geometric precision correction. Not present in L1G products.
GRID_CELL_SIZE_PANCHROMATIC	Double	Grid cell size used in creating the image for the panchromatic band.
GRID_CELL_SIZE_REFLECTIVE	Double	Grid cell size used in creating the image for the reflective band.
GRID_CELL_SIZE_THERMAL	Double	Grid cell size used in creating the image for the thermal band.
GROUND_CONTROL_POINTS_MODEL	Double	The number of ground control points used. Not used in L1GT products. Values: 0 - 999 (0 is used for L1T products that have used Multi-scene refinement).
GROUND_CONTROL_POINTS_VERSION	Double	The number of ground control points used in the verification of the terrain corrected product. Values: -1 to 1615 (-1 = not available)
IMAGE_QUALITY	Double	Image quality, 0 = worst, 9 = best, -1 = quality not calculated
IMAGE_QUALITY_OLI	Double	The composite image quality for the OLI bands. Values: 9 = Best. 1 = Worst. 0 = Image quality not calculated. This parameter is only present if OLI bands are present in the product.
IMAGE_QUALITY_TIRS	Double	The composite image quality for the TIRS bands. Values: 9 = Best. 1 = Worst. 0 = Image quality not calculated. This parameter is only present if OLI bands are present in the product.
K1_CONSTANT_BAND_10	Double	Calibration K1 constant for Band 10 radiance to temperature conversion.
K1_CONSTANT_BAND_11	Double	Calibration K1 constant for Band 11 radiance to temperature conversion.
K2_CONSTANT_BAND_10	Double	Calibration K2 constant for Band 10 radiance to temperature conversion.
K2_CONSTANT_BAND_11	Double	Calibration K2 constant for Band 11 radiance to temperature conversion.
LANDSAT_PRODUCT_ID	String	The naming convention of each Landsat Collection 1 Level-1 image based on acquisition parameters and processing parameters. Format: LXSS_LLLL_PPPRRR_YYYYMMDD_yyyymmdd_CC_TX * L = Landsat * X = Sensor (O = Operational Land Imager, T = Thermal Infrared Sensor, C = Combined OLI/TIRS) * SS = Satellite (08 = Landsat 8) * LLLL = Processing Correction Level (L1TP = precision and terrain, L1GT = systematic terrain, L1GS = systematic) * PPP = WRS Path * RRR = WRS Row * YYYYMMDD = Acquisition Date expressed in Year, Month, Day * yyyymmdd = Processing Date expressed in Year, Month, Day * CC = Collection Number (01) * TX = Collection Category (RT = Real Time, T1 = Tier 1, T2 = Tier 2)
LANDSAT_SCENE_ID	String	The Pre-Collection naming convention of each image is based on acquisition parameters. This was the naming convention used prior to Collection 1. Format: LXSPPPRRRYYYYDDDGSIVV * L = Landsat * X = Sensor (O = Operational Land Imager, T = Thermal Infrared Sensor, C = Combined OLI/TIRS) * S = Satellite (08 = Landsat 8) * PPP = WRS Path * RRR = WRS Row * YYYY = Year of Acquisition * DDD = Julian Day of Acquisition * GSI = Ground Station Identifier * VV = Version
MAP_PROJECTION	String	Projection used to represent the 3-dimensional surface of the earth for the Level-1 product.
NADIR_OFFNADIR	String	Nadir or Off-Nadir condition of the scene.
ORIENTATION	String	Orientation used in creating the image. Values: NOMINAL = Nominal Path, NORTH_UP = North Up, TRUE_NORTH = True North, USER = User
PANCHROMATIC_LINES	Double	Number of product lines for the panchromatic band.
PANCHROMATIC_SAMPLES	Double	Number of product samples for the panchromatic bands.
PROCESSING_SOFTWARE_VERSION	String	Name and version of the processing software used to generate the L1 product.
RADIANCE_ADD_BAND_1	Double	Additive rescaling factor used to convert calibrated DN to radiance for Band 1.
RADIANCE_ADD_BAND_10	Double	Additive rescaling factor used to convert calibrated DN to radiance for Band 10.
RADIANCE_ADD_BAND_11	Double	Additive rescaling factor used to convert calibrated DN to radiance for Band 11.
RADIANCE_ADD_BAND_2	Double	Additive rescaling factor used to convert calibrated DN to radiance for Band 2.
RADIANCE_ADD_BAND_3	Double	Additive rescaling factor used to convert calibrated DN to radiance for Band 3.
RADIANCE_ADD_BAND_4	Double	Additive rescaling factor used to convert calibrated DN to radiance for Band 4.
RADIANCE_ADD_BAND_5	Double	Additive rescaling factor used to convert calibrated DN to radiance for Band 5.
RADIANCE_ADD_BAND_6	Double	Additive rescaling factor used to convert calibrated DN to radiance for Band 6.
RADIANCE_ADD_BAND_7	Double	Additive rescaling factor used to convert calibrated DN to radiance for Band 7.
RADIANCE_ADD_BAND_8	Double	Additive rescaling factor used to convert calibrated DN to radiance for Band 8.
RADIANCE_ADD_BAND_9	Double	Additive rescaling factor used to convert calibrated DN to radiance for Band 9.
RADIANCE_MULT_BAND_1	Double	Multiplicative rescaling factor used to convert calibrated Band 1 DN to radiance.
RADIANCE_MULT_BAND_10	Double	Multiplicative rescaling factor used to convert calibrated Band 10 DN to radiance.
RADIANCE_MULT_BAND_11	Double	Multiplicative rescaling factor used to convert calibrated Band 11 DN to radiance.
RADIANCE_MULT_BAND_2	Double	Multiplicative rescaling factor used to convert calibrated Band 2 DN to radiance.
RADIANCE_MULT_BAND_3	Double	Multiplicative rescaling factor used to convert calibrated Band 3 DN to radiance.
RADIANCE_MULT_BAND_4	Double	Multiplicative rescaling factor used to convert calibrated Band 4 DN to radiance.
RADIANCE_MULT_BAND_5	Double	Multiplicative rescaling factor used to convert calibrated Band 5 DN to radiance.
RADIANCE_MULT_BAND_6	Double	Multiplicative rescaling factor used to convert calibrated Band 6 DN to radiance.
RADIANCE_MULT_BAND_7	Double	Multiplicative rescaling factor used to convert calibrated Band 7 DN to radiance.
RADIANCE_MULT_BAND_8	Double	Multiplicative rescaling factor used to convert calibrated Band 8 DN to radiance.
RADIANCE_MULT_BAND_9	Double	Multiplicative rescaling factor used to convert calibrated Band 9 DN to radiance.
REFLECTANCE_ADD_BAND_1	Double	Additive rescaling factor used to convert calibrated Band 1 DN to reflectance.
REFLECTANCE_ADD_BAND_2	Double	Additive rescaling factor used to convert calibrated Band 2 DN to reflectance.
REFLECTANCE_ADD_BAND_3	Double	Additive rescaling factor used to convert calibrated Band 3 DN to reflectance.
REFLECTANCE_ADD_BAND_4	Double	Additive rescaling factor used to convert calibrated Band 4 DN to reflectance.
REFLECTANCE_ADD_BAND_5	Double	Additive rescaling factor used to convert calibrated Band 5 DN to reflectance.
REFLECTANCE_ADD_BAND_7	Double	Multiplicative factor used to convert calibrated Band 7 DN to reflectance.
REFLECTANCE_ADD_BAND_8	Double	Multiplicative factor used to convert calibrated Band 8 DN to reflectance.
REFLECTANCE_ADD_BAND_9	Double	Minimum achievable spectral reflectance value for Band 8.
REFLECTANCE_MULT_BAND_1	Double	Multiplicative factor used to convert calibrated Band 1 DN to reflectance.
REFLECTANCE_MULT_BAND_2	Double	Multiplicative factor used to convert calibrated Band 2 DN to reflectance.
REFLECTANCE_MULT_BAND_3	Double	Multiplicative factor used to convert calibrated Band 3 DN to reflectance.
REFLECTANCE_MULT_BAND_4	Double	Multiplicative factor used to convert calibrated Band 4 DN to reflectance.
REFLECTANCE_MULT_BAND_5	Double	Multiplicative factor used to convert calibrated Band 5 DN to reflectance.
REFLECTANCE_MULT_BAND_6	Double	Multiplicative factor used to convert calibrated Band 6 DN to reflectance.
REFLECTANCE_MULT_BAND_7	Double	Multiplicative factor used to convert calibrated Band 7 DN to reflectance.
REFLECTANCE_MULT_BAND_8	Double	Multiplicative factor used to convert calibrated Band 8 DN to reflectance.
REFLECTANCE_MULT_BAND_9	Double	Multiplicative factor used to convert calibrated Band 9 DN to reflectance.
REFLECTIVE_LINES	Double	Number of product lines for the reflective bands.
REFLECTIVE_SAMPLES	Double	Number of product samples for the reflective bands.
REQUEST_ID	String	Request id, nnnyymmdd0000_0000 * nnn = node number * yy = year * mm = month * dd = day
RESAMPLING_OPTION	String	Resampling option used in creating the image.
RLUT_FILE_NAME	String	The file name for the Response Linearization Lookup Table (RLUT) used to generate the product, if applicable.
ROLL_ANGLE	Double	The amount of spacecraft roll angle at the scene center.
SATURATION_BAND_1	String	Flag indicating saturated pixels for band 1 ('Y'/'N')
SATURATION_BAND_10	String	Flag indicating saturated pixels for band 10 ('Y'/'N')
SATURATION_BAND_11	String	Flag indicating saturated pixels for band 11 ('Y'/'N')
SATURATION_BAND_2	String	Flag indicating saturated pixels for band 2 ('Y'/'N')
SATURATION_BAND_3	String	Flag indicating saturated pixels for band 3 ('Y'/'N')
SATURATION_BAND_4	String	Flag indicating saturated pixels for band 4 ('Y'/'N')
SATURATION_BAND_5	String	Flag indicating saturated pixels for band 5 ('Y'/'N')
SATURATION_BAND_6	String	Flag indicating saturated pixels for band 6 ('Y'/'N')
SATURATION_BAND_7	String	Flag indicating saturated pixels for band 7 ('Y'/'N')
SATURATION_BAND_8	String	Flag indicating saturated pixels for band 8 ('Y'/'N')
SATURATION_BAND_9	String	Flag indicating saturated pixels for band 9 ('Y'/'N')
SCENE_CENTER_TIME	String	Scene center time of acquired image. HH:MM:SS.SSSSSSSZ * HH = Hour (00-23) * MM = Minutes * SS.SSSSSSS = Fractional seconds * Z = "Zulu" time (same as GMT)
SENSOR_ID	String	Sensor used to capture data.
SPACECRAFT_ID	String	Spacecraft identification.
STATION_ID	String	Ground Station/Organisation that received the data.
SUN_AZIMUTH	Double	Sun azimuth angle in degrees for the image center location at the image centre acquisition time.
SUN_ELEVATION	Double	Sun elevation angle in degrees for the image center location at the image centre acquisition time.
TARGET_WRS_PATH	Double	Nearest WRS-2 path to the line-of-sight scene center of the image.
TARGET_WRS_ROW	Double	Nearest WRS-2 row to the line-of-sight scene center of the image. Rows 880-889 and 990-999 are reserved for the polar regions where it is undefined in the WRS-2.
THERMAL_LINES	Double	Number of product lines for the thermal band.
THERMAL_SAMPLES	Double	Number of product samples for the thermal band.
TIRS_SSM_MODEL	String	Due to an anomalous condition on the Thermal Infrared Sensor (TIRS) Scene Select Mirror (SSM) encoder electronics, this field has been added to indicate which model was used to process the data. (Actual, Preliminary, Final)
TIRS_SSM_POSITION_STATUS	String	TIRS SSM position status.
TIRS_STRAY_LIGHT_CORRECTION_SOURCE	String	TIRS stray light correction source.
TRUNCATION_OLI	String	Region of OLCI truncated.
UTM_ZONE	Double	UTM zone number used in product map projection.
WRS_PATH	Double	The WRS orbital path number (001 - 251).
WRS_ROW	Double	Landsat satellite WRS row (001-248).

使用说明：

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.

Landsat数据集是联邦创建的数据，因此属于公共领域，可以在没有版权限制的情况下使用、转让或复制。

对美国地质调查局作为数据来源的确认或信用，应通过包括一行文字引用来提供，如下面的例子。

(产品、图像、照片或数据集名称）由美国地质调查局提供。

例子。Landsat-7图像由美国地质调查局提供

请参阅美国地质调查局视觉识别系统指南，了解有关美国地质调查局产品的正确引用和鸣谢的进一步细节。

代码：

var dataset = ee.ImageCollection('LANDSAT/LC08/C01/T1_ANNUAL_TOA').filterDate('2017-01-01', '2017-12-31');
var trueColor = dataset.select(['B4', 'B3', 'B2']);
var trueColorVis = {min: 0,max: 0.4,gamma: 1.2,
};
Map.setCenter(6.746, 46.529, 6);
Map.addLayer(trueColor, trueColorVis, 'True Color (432)');

代码：

var dataset = ee.ImageCollection('LANDSAT/LC08/C01/T1_8DAY_TOA').filterDate('2017-01-01', '2017-12-31');
var trueColor = dataset.select(['B4', 'B3', 'B2']);
var trueColorVis = {min: 0,max: 0.4,gamma: 1.2,
};
Map.setCenter(6.746, 46.529, 6);
Map.addLayer(trueColor, trueColorVis, 'True Color (432)');

var dataset = ee.ImageCollection('LANDSAT/LC08/C01/T1_32DAY_TOA').filterDate('2017-01-01', '2017-12-31');
var trueColor = dataset.select(['B4', 'B3', 'B2']);
var trueColorVis = {min: 0,max: 0.4,gamma: 1.2,
};
Map.setCenter(6.746, 46.529, 6);
Map.addLayer(trueColor, trueColorVis, 'True Color (432)');

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