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