谷歌地球引擎 -- Landsat 5 TM_TOA 数据集 DN 值缩放、校准传感器辐射度数据集

Name

Description

Resolution

Wavelength

B1

Blue

30 meters

0.45 - 0.52 µm

B2

Green

30 meters

0.52 - 0.60 µm

B3

Red

30 meters

0.63 - 0.69 µm

B4

Near infrared

30 meters

0.76 - 0.90 µm

B5

Shortwave infrared 1

30 meters

1.55 - 1.75 µm

B6

Thermal Infrared 1. Resampled from 60m to 30m.

30 meters

10.40 - 12.50 µm

B7

Shortwave infrared 2

30 meters

2.08 - 2.35 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: 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)

Name

Type

Description

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.

CORRECTION_BIAS_BAND_1

String

Internal calibration bias method for band 1.

CORRECTION_BIAS_BAND_2

String

Internal calibration bias method for band 2.

CORRECTION_BIAS_BAND_3

String

Internal calibration bias method for band 3.

CORRECTION_BIAS_BAND_4

String

Internal calibration bias method for band 4.

CORRECTION_BIAS_BAND_5

String

Internal calibration bias method for band 5.

CORRECTION_BIAS_BAND_6

String

Internal calibration bias method for band 6.

CORRECTION_BIAS_BAND_7

String

Internal calibration bias method for band 7.

CORRECTION_GAIN_BAND_1

String

Internal calibration gain method for band 1.

CORRECTION_GAIN_BAND_2

String

Internal calibration gain method for band 2.

CORRECTION_GAIN_BAND_3

String

Internal calibration gain method for band 3.

CORRECTION_GAIN_BAND_4

String

Internal calibration gain method for band 4.

CORRECTION_GAIN_BAND_5

String

Internal calibration gain method for band 5.

CORRECTION_GAIN_BAND_6

String

Internal calibration gain method for band 6.

CORRECTION_GAIN_BAND_7

String

Internal calibration gain method for band 7.

CPF_NAME

String

Calibration parameter file name.

DATA_CATEGORY

String

Current data category assigned to the data. Possible values: ("NOMINAL", "VALIDATION", "EXCHANGE", "TEST", "ENGINEERING")

DATA_TYPE

String

Data type identifier. (L1T or L1G)

DATA_TYPE_L0RP

String

Data type identifier string used to create the L0RP product.

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.

GEOMETRIC_RMSE_VERIFY

Double

RMSE of the geometric residuals (pixels) in both line and sample directions measured on the terrain-corrected product independently using GLS2000.

GEOMETRIC_RMSE_VERIFY_QUAD_LL

Double

RMSE of the geometric residuals (pixels) of the lower-left quadrant measured on the terrain-corrected product independently using GLS2000.

GEOMETRIC_RMSE_VERIFY_QUAD_LR

Double

RMSE of the geometric residuals (pixels) of the lower-right quadrant measured on the terrain-corrected product independently using GLS2000.

GEOMETRIC_RMSE_VERIFY_QUAD_UL

Double

RMSE of the geometric residuals (pixels) of the upper-left quadrant measured on the terrain-corrected product independently using GLS2000.

GEOMETRIC_RMSE_VERIFY_QUAD_UR

Double

RMSE of the geometric residuals (pixels) of the upper-right quadrant measured on the terrain-corrected product independently using GLS2000.

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_VERIFY

Double

The number of ground control points used in the verification of the terrain corrected product. Values: -1 to 1615 (-1 = not available)

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

K1_CONSTANT_BAND_6

Double

Calibration constant K1 for Band 6 radiance to temperature conversion.

K2_CONSTANT_BAND_6

Double

Calibration constant K2 for Band 6 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.

MAP_PROJECTION_L0RA

String

L0RA map projection selectively applied to HDTs based on geographic location. Used for processed archive data.

ORIENTATION

String

Orientation used in creating the image. Values: NOMINAL = Nominal Path, NORTH_UP = North Up, TRUE_NORTH = True North, USER = User

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_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_MULT_BAND_1

Double

Multiplicative rescaling factor used to convert calibrated Band 1 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.

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_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_7

Double

Multiplicative factor used to convert calibrated Band 7 DN to reflectance.

REFLECTIVE_LINES

Double

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