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Google earth engine对Landsat8辐射定标
- 辐射定标的本质是波段运算，y = ax+b
- 以第10波段为例，首先从元数据文件找到RADIANCE_MULT_BAND_10和RADIANCE_ADD_BAND_10，第一个是乘项 3.3420E-04，第二个是加项0.1。在gee中进行波段运算
var rad10 = image.select('B10').multiply(3.3420*0.0001).add(0.1)
GROUP = L1_METADATA_FILE
GROUP = METADATA_FILE_INFO
ORIGIN = "Image courtesy of the U.S. Geological Survey"
REQUEST_ID = "0702003135965_00029"
LANDSAT_SCENE_ID = "LC81220352020065LGN00"
LANDSAT_PRODUCT_ID = "LC08_L1TP_122035_20200305_20200314_01_T1"
COLLECTION_NUMBER = 01
FILE_DATE = 2020-03-14T05:18:46Z
STATION_ID = "LGN"
PROCESSING_SOFTWARE_VERSION = "LPGS_13.1.0"
END_GROUP = METADATA_FILE_INFO
GROUP = PRODUCT_METADATA
DATA_TYPE = "L1TP"
COLLECTION_CATEGORY = "T1"
ELEVATION_SOURCE = "GLS2000"
OUTPUT_FORMAT = "GEOTIFF"
SPACECRAFT_ID = "LANDSAT_8"
SENSOR_ID = "OLI_TIRS"
WRS_PATH = 122
WRS_ROW = 35
NADIR_OFFNADIR = "NADIR"
TARGET_WRS_PATH = 122
TARGET_WRS_ROW = 35
DATE_ACQUIRED = 2020-03-05
SCENE_CENTER_TIME = "02:48:28.1796780Z"
CORNER_UL_LAT_PRODUCT = 37.09079
CORNER_UL_LON_PRODUCT = 115.64750
CORNER_UR_LAT_PRODUCT = 37.09195
CORNER_UR_LON_PRODUCT = 118.24675
CORNER_LL_LAT_PRODUCT = 34.97083
CORNER_LL_LON_PRODUCT = 115.68327
CORNER_LR_LAT_PRODUCT = 34.97190
CORNER_LR_LON_PRODUCT = 118.21378
CORNER_UL_PROJECTION_X_PRODUCT = 379800.000
CORNER_UL_PROJECTION_Y_PRODUCT = 4105800.000
CORNER_UR_PROJECTION_X_PRODUCT = 610800.000
CORNER_UR_PROJECTION_Y_PRODUCT = 4105800.000
CORNER_LL_PROJECTION_X_PRODUCT = 379800.000
CORNER_LL_PROJECTION_Y_PRODUCT = 3870600.000
CORNER_LR_PROJECTION_X_PRODUCT = 610800.000
CORNER_LR_PROJECTION_Y_PRODUCT = 3870600.000
PANCHROMATIC_LINES = 15681
PANCHROMATIC_SAMPLES = 15401
REFLECTIVE_LINES = 7841
REFLECTIVE_SAMPLES = 7701
THERMAL_LINES = 7841
THERMAL_SAMPLES = 7701
FILE_NAME_BAND_1 = "LC08_L1TP_122035_20200305_20200314_01_T1_B1.TIF"
FILE_NAME_BAND_2 = "LC08_L1TP_122035_20200305_20200314_01_T1_B2.TIF"
FILE_NAME_BAND_3 = "LC08_L1TP_122035_20200305_20200314_01_T1_B3.TIF"
FILE_NAME_BAND_4 = "LC08_L1TP_122035_20200305_20200314_01_T1_B4.TIF"
FILE_NAME_BAND_5 = "LC08_L1TP_122035_20200305_20200314_01_T1_B5.TIF"
FILE_NAME_BAND_6 = "LC08_L1TP_122035_20200305_20200314_01_T1_B6.TIF"
FILE_NAME_BAND_7 = "LC08_L1TP_122035_20200305_20200314_01_T1_B7.TIF"
FILE_NAME_BAND_8 = "LC08_L1TP_122035_20200305_20200314_01_T1_B8.TIF"
FILE_NAME_BAND_9 = "LC08_L1TP_122035_20200305_20200314_01_T1_B9.TIF"
FILE_NAME_BAND_10 = "LC08_L1TP_122035_20200305_20200314_01_T1_B10.TIF"
FILE_NAME_BAND_11 = "LC08_L1TP_122035_20200305_20200314_01_T1_B11.TIF"
FILE_NAME_BAND_QUALITY = "LC08_L1TP_122035_20200305_20200314_01_T1_BQA.TIF"
ANGLE_COEFFICIENT_FILE_NAME = "LC08_L1TP_122035_20200305_20200314_01_T1_ANG.txt"
METADATA_FILE_NAME = "LC08_L1TP_122035_20200305_20200314_01_T1_MTL.txt"
CPF_NAME = "LC08CPF_20200101_20200331_01.04"
BPF_NAME_OLI = "LO8BPF20200305023553_20200305041534.01"
BPF_NAME_TIRS = "LT8BPF20200223110021_20200310034739.01"
RLUT_FILE_NAME = "LC08RLUT_20150303_20431231_01_12.h5"
END_GROUP = PRODUCT_METADATA
GROUP = IMAGE_ATTRIBUTES
CLOUD_COVER = 0.11
CLOUD_COVER_LAND = 0.11
IMAGE_QUALITY_OLI = 9
IMAGE_QUALITY_TIRS = 9
TIRS_SSM_MODEL = "FINAL"
TIRS_SSM_POSITION_STATUS = "ESTIMATED"
TIRS_STRAY_LIGHT_CORRECTION_SOURCE = "TIRS"
ROLL_ANGLE = -0.001
SUN_AZIMUTH = 147.02536051
SUN_ELEVATION = 42.47324638
EARTH_SUN_DISTANCE = 0.9918391
SATURATION_BAND_1 = "N"
SATURATION_BAND_2 = "N"
SATURATION_BAND_3 = "Y"
SATURATION_BAND_4 = "Y"
SATURATION_BAND_5 = "Y"
SATURATION_BAND_6 = "Y"
SATURATION_BAND_7 = "Y"
SATURATION_BAND_8 = "N"
SATURATION_BAND_9 = "N"
GROUND_CONTROL_POINTS_VERSION = 4
GROUND_CONTROL_POINTS_MODEL = 322
GEOMETRIC_RMSE_MODEL = 8.037
GEOMETRIC_RMSE_MODEL_Y = 6.031
GEOMETRIC_RMSE_MODEL_X = 5.312
GROUND_CONTROL_POINTS_VERIFY = 142
GEOMETRIC_RMSE_VERIFY = 4.786
TRUNCATION_OLI = "UPPER"
END_GROUP = IMAGE_ATTRIBUTES
GROUP = MIN_MAX_RADIANCE
RADIANCE_MAXIMUM_BAND_1 = 772.62183
RADIANCE_MINIMUM_BAND_1 = -63.80336
RADIANCE_MAXIMUM_BAND_2 = 791.17413
RADIANCE_MINIMUM_BAND_2 = -65.33542
RADIANCE_MAXIMUM_BAND_3 = 729.06024
RADIANCE_MINIMUM_BAND_3 = -60.20603
RADIANCE_MAXIMUM_BAND_4 = 614.78467
RADIANCE_MINIMUM_BAND_4 = -50.76912
RADIANCE_MAXIMUM_BAND_5 = 376.21756
RADIANCE_MINIMUM_BAND_5 = -31.06817
RADIANCE_MAXIMUM_BAND_6 = 93.56188
RADIANCE_MINIMUM_BAND_6 = -7.72637
RADIANCE_MAXIMUM_BAND_7 = 31.53536
RADIANCE_MINIMUM_BAND_7 = -2.60420
RADIANCE_MAXIMUM_BAND_8 = 695.76703
RADIANCE_MINIMUM_BAND_8 = -57.45667
RADIANCE_MAXIMUM_BAND_9 = 147.03435
RADIANCE_MINIMUM_BAND_9 = -12.14214
RADIANCE_MAXIMUM_BAND_10 = 22.00180
RADIANCE_MINIMUM_BAND_10 = 0.10033
RADIANCE_MAXIMUM_BAND_11 = 22.00180
RADIANCE_MINIMUM_BAND_11 = 0.10033
END_GROUP = MIN_MAX_RADIANCE
GROUP = MIN_MAX_REFLECTANCE
REFLECTANCE_MAXIMUM_BAND_1 = 1.210700
REFLECTANCE_MINIMUM_BAND_1 = -0.099980
REFLECTANCE_MAXIMUM_BAND_2 = 1.210700
REFLECTANCE_MINIMUM_BAND_2 = -0.099980
REFLECTANCE_MAXIMUM_BAND_3 = 1.210700
REFLECTANCE_MINIMUM_BAND_3 = -0.099980
REFLECTANCE_MAXIMUM_BAND_4 = 1.210700
REFLECTANCE_MINIMUM_BAND_4 = -0.099980
REFLECTANCE_MAXIMUM_BAND_5 = 1.210700
REFLECTANCE_MINIMUM_BAND_5 = -0.099980
REFLECTANCE_MAXIMUM_BAND_6 = 1.210700
REFLECTANCE_MINIMUM_BAND_6 = -0.099980
REFLECTANCE_MAXIMUM_BAND_7 = 1.210700
REFLECTANCE_MINIMUM_BAND_7 = -0.099980
REFLECTANCE_MAXIMUM_BAND_8 = 1.210700
REFLECTANCE_MINIMUM_BAND_8 = -0.099980
REFLECTANCE_MAXIMUM_BAND_9 = 1.210700
REFLECTANCE_MINIMUM_BAND_9 = -0.099980
END_GROUP = MIN_MAX_REFLECTANCE
GROUP = MIN_MAX_PIXEL_VALUE
QUANTIZE_CAL_MAX_BAND_1 = 65535
QUANTIZE_CAL_MIN_BAND_1 = 1
QUANTIZE_CAL_MAX_BAND_2 = 65535
QUANTIZE_CAL_MIN_BAND_2 = 1
QUANTIZE_CAL_MAX_BAND_3 = 65535
QUANTIZE_CAL_MIN_BAND_3 = 1
QUANTIZE_CAL_MAX_BAND_4 = 65535
QUANTIZE_CAL_MIN_BAND_4 = 1
QUANTIZE_CAL_MAX_BAND_5 = 65535
QUANTIZE_CAL_MIN_BAND_5 = 1
QUANTIZE_CAL_MAX_BAND_6 = 65535
QUANTIZE_CAL_MIN_BAND_6 = 1
QUANTIZE_CAL_MAX_BAND_7 = 65535
QUANTIZE_CAL_MIN_BAND_7 = 1
QUANTIZE_CAL_MAX_BAND_8 = 65535
QUANTIZE_CAL_MIN_BAND_8 = 1
QUANTIZE_CAL_MAX_BAND_9 = 65535
QUANTIZE_CAL_MIN_BAND_9 = 1
QUANTIZE_CAL_MAX_BAND_10 = 65535
QUANTIZE_CAL_MIN_BAND_10 = 1
QUANTIZE_CAL_MAX_BAND_11 = 65535
QUANTIZE_CAL_MIN_BAND_11 = 1
END_GROUP = MIN_MAX_PIXEL_VALUE
GROUP = RADIOMETRIC_RESCALING
RADIANCE_MULT_BAND_1 = 1.2763E-02
RADIANCE_MULT_BAND_2 = 1.3070E-02
RADIANCE_MULT_BAND_3 = 1.2044E-02
RADIANCE_MULT_BAND_4 = 1.0156E-02
RADIANCE_MULT_BAND_5 = 6.2149E-03
RADIANCE_MULT_BAND_6 = 1.5456E-03
RADIANCE_MULT_BAND_7 = 5.2094E-04
RADIANCE_MULT_BAND_8 = 1.1494E-02
RADIANCE_MULT_BAND_9 = 2.4289E-03
RADIANCE_MULT_BAND_10 = 3.3420E-04
RADIANCE_MULT_BAND_11 = 3.3420E-04
RADIANCE_ADD_BAND_1 = -63.81612
RADIANCE_ADD_BAND_2 = -65.34849
RADIANCE_ADD_BAND_3 = -60.21807
RADIANCE_ADD_BAND_4 = -50.77927
RADIANCE_ADD_BAND_5 = -31.07438
RADIANCE_ADD_BAND_6 = -7.72792
RADIANCE_ADD_BAND_7 = -2.60472
RADIANCE_ADD_BAND_8 = -57.46816
RADIANCE_ADD_BAND_9 = -12.14457
RADIANCE_ADD_BAND_10 = 0.10000
RADIANCE_ADD_BAND_11 = 0.10000
REFLECTANCE_MULT_BAND_1 = 2.0000E-05
REFLECTANCE_MULT_BAND_2 = 2.0000E-05
REFLECTANCE_MULT_BAND_3 = 2.0000E-05
REFLECTANCE_MULT_BAND_4 = 2.0000E-05
REFLECTANCE_MULT_BAND_5 = 2.0000E-05
REFLECTANCE_MULT_BAND_6 = 2.0000E-05
REFLECTANCE_MULT_BAND_7 = 2.0000E-05
REFLECTANCE_MULT_BAND_8 = 2.0000E-05
REFLECTANCE_MULT_BAND_9 = 2.0000E-05
REFLECTANCE_ADD_BAND_1 = -0.100000
REFLECTANCE_ADD_BAND_2 = -0.100000
REFLECTANCE_ADD_BAND_3 = -0.100000
REFLECTANCE_ADD_BAND_4 = -0.100000
REFLECTANCE_ADD_BAND_5 = -0.100000
REFLECTANCE_ADD_BAND_6 = -0.100000
REFLECTANCE_ADD_BAND_7 = -0.100000
REFLECTANCE_ADD_BAND_8 = -0.100000
REFLECTANCE_ADD_BAND_9 = -0.100000
END_GROUP = RADIOMETRIC_RESCALING
GROUP = TIRS_THERMAL_CONSTANTS
K1_CONSTANT_BAND_10 = 774.8853
K2_CONSTANT_BAND_10 = 1321.0789
K1_CONSTANT_BAND_11 = 480.8883
K2_CONSTANT_BAND_11 = 1201.1442
END_GROUP = TIRS_THERMAL_CONSTANTS
GROUP = PROJECTION_PARAMETERS
MAP_PROJECTION = "UTM"
DATUM = "WGS84"
ELLIPSOID = "WGS84"
UTM_ZONE = 50
GRID_CELL_SIZE_PANCHROMATIC = 15.00
GRID_CELL_SIZE_REFLECTIVE = 30.00
GRID_CELL_SIZE_THERMAL = 30.00
ORIENTATION = "NORTH_UP"
RESAMPLING_OPTION = "CUBIC_CONVOLUTION"
END_GROUP = PROJECTION_PARAMETERS
END_GROUP = L1_METADATA_FILE
END
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