基于ENVI的landsat8辐射定标和大气校正

辐射定标

1数据材料

数据类型：Landsat  OLI8

2打开数据

大气校正流程

Flight Date信息从属性Time中获取，Sensor高度是固定值705，Ground Elevation可以采用软件自带高程数据计算该景影像范围的平均高程，精度要求不高练习的时候也可以估算一个大概值。

注意：将Output Directory for FLAASH Files目录换一个自己的目录，默认目录经常报如下错误。

补充：头文件内容及格式

这部分内容从原始影像数据压缩包（LS8_O_20180805_030149_000000_124039_GEOTIFF_SNC_L4.zip）解压出来的，这里直接复制出来供大家参考：

GROUP = L1_METADATA_FILE
  GROUP = METADATA_FILE_INFO
    ORIGIN = "Image Processed by R.A.D.I"
    REQUEST_ID = ""
    LANDSAT_SCENE_ID = "LO81240392018217SNC00"
    COLLECTION_NUMBER = 01
    FILE_DATE = 2018-09-04T08:59:04Z
    STATION_ID = "SNC"
    PROCESSING_SOFTWARE_VERSION = "LPGS 2.7.0"
  END_GROUP = METADATA_FILE_INFO
  GROUP = PRODUCT_METADATA
    DATA_TYPE = "L1TP"
    COLLECTION_CATEGORY = "T1"
    ELEVATION_SOURCE = "USGS"
    OUTPUT_FORMAT = "GEOTIFF"
    SPACECRAFT_ID = "LANDSAT_8"
    SENSOR_ID = "OLI"
    WRS_PATH = 124
    WRS_ROW = 39
    NADIR_OFFNADIR = "NADIR"
    TARGET_WRS_PATH = 124
    TARGET_WRS_ROW = 39
    DATE_ACQUIRED = 2018-08-05
    SCENE_CENTER_TIME = 03:01:49.4708074Z
    CORNER_UL_LAT_PRODUCT = 31.35724
    CORNER_UL_LON_PRODUCT = 111.11776
    CORNER_UR_LAT_PRODUCT = 31.33266
    CORNER_UR_LON_PRODUCT = 113.51400
    CORNER_LL_LAT_PRODUCT = 29.25912
    CORNER_LL_LON_PRODUCT = 111.11528
    CORNER_LR_LAT_PRODUCT = 29.23651
    CORNER_LR_LON_PRODUCT = 113.46108
    CORNER_UL_PROJECTION_X_PRODUCT = 511200.000
    CORNER_UL_PROJECTION_Y_PRODUCT = 3469200.000
    CORNER_UR_PROJECTION_X_PRODUCT = 739200.000
    CORNER_UR_PROJECTION_Y_PRODUCT = 3469200.000
    CORNER_LL_PROJECTION_X_PRODUCT = 511200.000
    CORNER_LL_PROJECTION_Y_PRODUCT = 3236700.000
    CORNER_LR_PROJECTION_X_PRODUCT = 739200.000
    CORNER_LR_PROJECTION_Y_PRODUCT = 3236700.000
    PANCHROMATIC_LINES = 15501
    PANCHROMATIC_SAMPLES = 15201
    REFLECTIVE_LINES = 7751
    REFLECTIVE_SAMPLES = 7601
    FILE_NAME_BAND_1 = "LO81240392018217SNC00_B1.TIF"
    FILE_NAME_BAND_2 = "LO81240392018217SNC00_B2.TIF"
    FILE_NAME_BAND_3 = "LO81240392018217SNC00_B3.TIF"
    FILE_NAME_BAND_4 = "LO81240392018217SNC00_B4.TIF"
    FILE_NAME_BAND_5 = "LO81240392018217SNC00_B5.TIF"
    FILE_NAME_BAND_6 = "LO81240392018217SNC00_B6.TIF"
    FILE_NAME_BAND_7 = "LO81240392018217SNC00_B7.TIF"
    FILE_NAME_BAND_8 = "LO81240392018217SNC00_B8.TIF"
    FILE_NAME_BAND_9 = "LO81240392018217SNC00_B9.TIF"
    FILE_NAME_BAND_QUALITY = "LO81240392018217SNC00_BQA.TIF"
    METADATA_FILE_NAME = "LO81240392018217SNC00_MTL.txt"
    CPF_NAME = "LC08CPF_20180701_20180930_01.02"
    BPF_NAME_OLI = "LO8BPF20180805023941_20180805041858.01"
    BPF_NAME_TIRS = "LT8BPF20180728131828_20180812101713.01"
    RLUT_FILE_NAME = "LC08RLUT_20150303_20431231_01_12.h5"
  END_GROUP = PRODUCT_METADATA
  GROUP = IMAGE_ATTRIBUTES
    CLOUD_COVER = 10.16
    CLOUD_COVER_LAND = 10.16
    IMAGE_QUALITY_OLI = 9
    ROLL_ANGLE = -0.001
    SUN_AZIMUTH = 116.16588119
    SUN_ELEVATION = 64.58928203
    EARTH_SUN_DISTANCE = 1.0144821
    SATURATION_BAND_1 = "Y"
    SATURATION_BAND_2 = "Y"
    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 = 46
    GEOMETRIC_RMSE_MODEL = 8.476
    GEOMETRIC_RMSE_MODEL_Y = 6.366
    GEOMETRIC_RMSE_MODEL_X = 5.596
    GROUND_CONTROL_POINTS_VERIFY = 22
    GEOMETRIC_RMSE_VERIFY = 8.285
    TRUNCATION_OLI = "UPPER"
  END_GROUP = IMAGE_ATTRIBUTES
  GROUP = MIN_MAX_RADIANCE
    RADIANCE_MAXIMUM_BAND_1 = 738.51715
    RADIANCE_MINIMUM_BAND_1 = -60.98699
    RADIANCE_MAXIMUM_BAND_2 = 756.25061
    RADIANCE_MINIMUM_BAND_2 = -62.45142
    RADIANCE_MAXIMUM_BAND_3 = 696.87848
    RADIANCE_MINIMUM_BAND_3 = -57.54845
    RADIANCE_MAXIMUM_BAND_4 = 587.64716
    RADIANCE_MINIMUM_BAND_4 = -48.52810
    RADIANCE_MAXIMUM_BAND_5 = 359.61078
    RADIANCE_MINIMUM_BAND_5 = -29.69677
    RADIANCE_MAXIMUM_BAND_6 = 89.43192
    RADIANCE_MINIMUM_BAND_6 = -7.38532
    RADIANCE_MAXIMUM_BAND_7 = 30.14335
    RADIANCE_MINIMUM_BAND_7 = -2.48925
    RADIANCE_MAXIMUM_BAND_8 = 665.05487
    RADIANCE_MINIMUM_BAND_8 = -54.92045
    RADIANCE_MAXIMUM_BAND_9 = 140.54404
    RADIANCE_MINIMUM_BAND_9 = -11.60617
  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
  END_GROUP = MIN_MAX_PIXEL_VALUE
  GROUP = RADIOMETRIC_RESCALING
    RADIANCE_MULT_BAND_1 = 1.2200E-02
    RADIANCE_MULT_BAND_2 = 1.2493E-02
    RADIANCE_MULT_BAND_3 = 1.1512E-02
    RADIANCE_MULT_BAND_4 = 9.7076E-03
    RADIANCE_MULT_BAND_5 = 5.9405E-03
    RADIANCE_MULT_BAND_6 = 1.4774E-03
    RADIANCE_MULT_BAND_7 = 4.9795E-04
    RADIANCE_MULT_BAND_8 = 1.0986E-02
    RADIANCE_MULT_BAND_9 = 2.3217E-03
    RADIANCE_ADD_BAND_1 = -60.99919
    RADIANCE_ADD_BAND_2 = -62.46391
    RADIANCE_ADD_BAND_3 = -57.55996
    RADIANCE_ADD_BAND_4 = -48.53780
    RADIANCE_ADD_BAND_5 = -29.70271
    RADIANCE_ADD_BAND_6 = -7.38679
    RADIANCE_ADD_BAND_7 = -2.48975
    RADIANCE_ADD_BAND_8 = -54.93143
    RADIANCE_ADD_BAND_9 = -11.60849
    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 = PROJECTION_PARAMETERS
    MAP_PROJECTION = "UTM"
    DATUM = "WGS84"
    ELLIPSOID = "WGS84"
    UTM_ZONE = 49
    GRID_CELL_SIZE_PANCHROMATIC = 15.00
    GRID_CELL_SIZE_REFLECTIVE = 30.00
    ORIENTATION = "NORTH_UP"
    RESAMPLING_OPTION = "CUBIC_CONVOLUTION"
  END_GROUP = PROJECTION_PARAMETERS
END_GROUP = L1_METADATA_FILE
END