Landsat8 SR Level2 数据文件夹内容遥感图像处理

一、文件夹名称（1）LC081230392015011001T1-SC20180705064729
LC08||123039||20150110||01T1-SC||20180705||064729
卫星数据类型||行列号||摄影日期||影像分类-产品简称||order的申请日期||order processing completed的时间
（2）卫星数据类型
LC = Combined（both OLI and TIRS data）
LO = OLI data only .Pixel Size : OLI Multispectral bands 30 meters||OLI panchromatic band15 meters
LT = TIRS data onlyPixel Size : TIRS Thermal bands: 100 meters (resampled to 30 meters to matchmultispectral bands
（3）产品分类Collection Category
Tier1(T1) - 包括最高质量的Level-1 Precision Terrain(L1TP)地面数据，地理坐标已配准，误差满足(RMSE<12m）
Tier2(T2) - 包括没有达到L1TP标准的影像，包括Level-1 Systematic Terrain(L1GT)和Systematic(L1GS)影像
Real-Time(RT) - 尚未进行改正处理的新影像。

二、数据夹文件内容：（1）共13个文件，分为三类：
①xml文件：可以看到影像的metadata，和各tif文件的文件名、pixel size、重采样方法、pixel的单位（如分类图的分类编号）
②文本文件：分为_ANG与_MTL两个
_ANG Angle，是对影像的投影方式，等等数据的记录，应该可以拿来做几何
_MTL _MeTadata File影像元数据介绍
③影像文件：均为tif格式，1-7 bands + _pixel_qa + _radsat_qa + _sr_aerosol

三、MTL文件内容：

GROUP = L1_METADATA_FILE

GROUP = METADATA_FILE_INFO 元数据文件信息，包括各类IDORIGIN = "Image courtesy of the U.S. Geological Survey" REQUEST_ID = "0501704070525_00034" LANDSAT_SCENE_ID = "LC81230392015170LGN01" LANDSAT_PRODUCT_ID = "LC08_L1TP_123039_20150619_20170407_01_T1" COLLECTION_NUMBER = 01 FILE_DATE = 2017-04-07T20:42:11Z STATION_ID = "LGN" PROCESSING_SOFTWARE_VERSION = "LPGS_2.7.0" END_GROUP = METADATA_FILE_INFO

GROUP = PRODUCT_METADATA 产品元数据DATA_TYPE = "L1TP"数据级别 COLLECTION_CATEGORY = "T1"数据类别 ELEVATION_SOURCE = "GLS2000"高程坐标系 OUTPUT_FORMAT = "GEOTIFF"图像格式 SPACECRAFT_ID = "LANDSAT_8"卫星编号 SENSOR_ID = "OLI_TIRS"传感器编号 WRS_PATH = 123 WRS_ROW = 39 NADIR_OFFNADIR = "NADIR" NADIR:最低点，可能是判读影像是否正射 TARGET_WRS_PATH = 123 TARGET_WRS_ROW = 39 DATE_ACQUIRED = 2015-06-19 SCENE_CENTER_TIME = "02:55:36.8091570Z" CORNER_UL_LAT_PRODUCT = 31.36258影像四角像元中心经纬度 CORNER_UL_LON_PRODUCT = 112.67597 CORNER_UR_LAT_PRODUCT = 31.30956 CORNER_UR_LON_PRODUCT = 115.05072 CORNER_LL_LAT_PRODUCT = 29.28158 CORNER_LL_LON_PRODUCT = 112.64090 CORNER_LR_LAT_PRODUCT = 29.23278 CORNER_LR_LON_PRODUCT = 114.96619 CORNER_UL_PROJECTION_X_PRODUCT = 659400.000影像四角投影坐标 CORNER_UL_PROJECTION_Y_PRODUCT = 3471000.000 CORNER_UR_PROJECTION_X_PRODUCT = 885600.000 CORNER_UR_PROJECTION_Y_PRODUCT = 3471000.000 CORNER_LL_PROJECTION_X_PRODUCT = 659400.000 CORNER_LL_PROJECTION_Y_PRODUCT = 3240300.000 CORNER_LR_PROJECTION_X_PRODUCT = 885600.000 CORNER_LR_PROJECTION_Y_PRODUCT = 3240300.000 PANCHROMATIC_LINES = 15381全色影像行列数 PANCHROMATIC_SAMPLES = 15081 REFLECTIVE_LINES = 7691反射率影像行列数 REFLECTIVE_SAMPLES = 7541 THERMAL_LINES = 7691热成像影像行列数 THERMAL_SAMPLES = 7541 FILE_NAME_BAND_1 = "LC08_L1TP_123039_20150619_20170407_01_T1_B1.TIF"文件数据名 FILE_NAME_BAND_2 = "LC08_L1TP_123039_20150619_20170407_01_T1_B2.TIF" FILE_NAME_BAND_3 = "LC08_L1TP_123039_20150619_20170407_01_T1_B3.TIF" FILE_NAME_BAND_4 = "LC08_L1TP_123039_20150619_20170407_01_T1_B4.TIF" FILE_NAME_BAND_5 = "LC08_L1TP_123039_20150619_20170407_01_T1_B5.TIF" FILE_NAME_BAND_6 = "LC08_L1TP_123039_20150619_20170407_01_T1_B6.TIF" FILE_NAME_BAND_7 = "LC08_L1TP_123039_20150619_20170407_01_T1_B7.TIF" FILE_NAME_BAND_8 = "LC08_L1TP_123039_20150619_20170407_01_T1_B8.TIF" FILE_NAME_BAND_9 = "LC08_L1TP_123039_20150619_20170407_01_T1_B9.TIF" FILE_NAME_BAND_10 = "LC08_L1TP_123039_20150619_20170407_01_T1_B10.TIF" FILE_NAME_BAND_11 = "LC08_L1TP_123039_20150619_20170407_01_T1_B11.TIF" FILE_NAME_BAND_QUALITY = "LC08_L1TP_123039_20150619_20170407_01_T1_BQA.TIF" ANGLE_COEFFICIENT_FILE_NAME = "LC08_L1TP_123039_20150619_20170407_01_T1_ANG.txt" METADATA_FILE_NAME = "LC08_L1TP_123039_20150619_20170407_01_T1_MTL.txt" CPF_NAME = "LC08CPF_20150401_20150630_01.01" BPF_NAME_OLI = "LO8BPF20150619024129_20150619030742.01" BPF_NAME_TIRS = "LT8BPF20150619023732_20150619030837.01" RLUT_FILE_NAME = "LC08RLUT_20150303_20431231_01_12.h5" Response Linearization Lookup Table 响应值线性映射表文件END_GROUP = PRODUCT_METADATA

GROUP = IMAGE_ATTRIBUTES影像质量CLOUD_COVER = 45.50云量百分比 CLOUD_COVER_LAND = 45.50被云遮挡的土地量半分比 IMAGE_QUALITY_OLI = 9OLI影像质量，9为最好 IMAGE_QUALITY_TIRS = 9TIRS影像质量，9为最好 TIRS_SSM_MODEL = "ACTUAL" TIRS_SSM_POSITION_STATUS = "NOMINAL" TIRS_STRAY_LIGHT_CORRECTION_SOURCE = "TIRS" ROLL_ANGLE = -0.001 SUN_AZIMUTH = 103.50823995此行及下方两行为日照信息 SUN_ELEVATION = 68.76681755 EARTH_SUN_DISTANCE = 1.0160872 SATURATION_BAND_1 = "N"Saturation不知道是什么，官网上尚未查到 SATURATION_BAND_2 = "N" SATURATION_BAND_3 = "N" SATURATION_BAND_4 = "N" 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 = 158 GEOMETRIC_RMSE_MODEL = 8.285几何改正精度 GEOMETRIC_RMSE_MODEL_Y = 5.696 GEOMETRIC_RMSE_MODEL_X = 6.016 TRUNCATION_OLI = "UPPER"END_GROUP = IMAGE_ATTRIBUTES

GROUP = MIN_MAX_RADIANCE波段影像的辐射最大值、最小值RADIANCE_MAXIMUM_BAND_1 = 736.18573 RADIANCE_MINIMUM_BAND_1 = -60.79446 RADIANCE_MAXIMUM_BAND_2 = 753.86316 RADIANCE_MINIMUM_BAND_2 = -62.25427 RADIANCE_MAXIMUM_BAND_3 = 694.67847 RADIANCE_MINIMUM_BAND_3 = -57.36678 RADIANCE_MAXIMUM_BAND_4 = 585.79205 RADIANCE_MINIMUM_BAND_4 = -48.37490 RADIANCE_MAXIMUM_BAND_5 = 358.47549 RADIANCE_MINIMUM_BAND_5 = -29.60302 RADIANCE_MAXIMUM_BAND_6 = 89.14960 RADIANCE_MINIMUM_BAND_6 = -7.36200 RADIANCE_MAXIMUM_BAND_7 = 30.04819 RADIANCE_MINIMUM_BAND_7 = -2.48139 RADIANCE_MAXIMUM_BAND_8 = 662.95538 RADIANCE_MINIMUM_BAND_8 = -54.74707 RADIANCE_MAXIMUM_BAND_9 = 140.10036 RADIANCE_MINIMUM_BAND_9 = -11.56953 RADIANCE_MAXIMUM_BAND_10 = 22.00180 RADIANCE_MINIMUM_BAND_10 = 0.10033 RADIANCE_MAXIMUM_BAND_11 = 22.00180 RADIANCE_MINIMUM_BAND_11 = 0.10033END_GROUP = MIN_MAX_RADIANCE

GROUP = MIN_MAX_REFLECTANCE波段影像反射率的最大值、最小值 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 = -0.099980END_GROUP = MIN_MAX_REFLECTANCE

GROUP = MIN_MAX_PIXEL_VALUE波段影像像素归一化后的最大值、最小值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 = 1END_GROUP = MIN_MAX_PIXEL_VALUE

GROUP = RADIOMETRIC_RESCALING波段影像辐射归一化系数RADIANCE_MULT_BAND_1 = 1.2161E-02 RADIANCE_MULT_BAND_2 = 1.2453E-02 RADIANCE_MULT_BAND_3 = 1.1476E-02 RADIANCE_MULT_BAND_4 = 9.6769E-03 RADIANCE_MULT_BAND_5 = 5.9218E-03 RADIANCE_MULT_BAND_6 = 1.4727E-03 RADIANCE_MULT_BAND_7 = 4.9638E-04 RADIANCE_MULT_BAND_8 = 1.0952E-02 RADIANCE_MULT_BAND_9 = 2.3144E-03 RADIANCE_MULT_BAND_10 = 3.3420E-04 RADIANCE_MULT_BAND_11 = 3.3420E-04 RADIANCE_ADD_BAND_1 = -60.80662 RADIANCE_ADD_BAND_2 = -62.26672 RADIANCE_ADD_BAND_3 = -57.37825 RADIANCE_ADD_BAND_4 = -48.38457 RADIANCE_ADD_BAND_5 = -29.60895 RADIANCE_ADD_BAND_6 = -7.36348 RADIANCE_ADD_BAND_7 = -2.48189 RADIANCE_ADD_BAND_8 = -54.75802 RADIANCE_ADD_BAND_9 = -11.57185 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 = -0.100000END_GROUP = RADIOMETRIC_RESCALING

GROUP = TIRS_THERMAL_CONSTANTSTIRS热成像影像参数K1_CONSTANT_BAND_10 = 774.8853 K2_CONSTANT_BAND_10 = 1321.0789 K1_CONSTANT_BAND_11 = 480.8883 K2_CONSTANT_BAND_11 = 1201.1442END_GROUP = TIRS_THERMAL_CONSTANTS

GROUP = PROJECTION_PARAMETERS投影参数MAP_PROJECTION = "UTM" DATUM = "WGS84" ELLIPSOID = "WGS84" UTM_ZONE = 49 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