GEE数据：Sentinel-2数据更新新增两个云和雪波段（MSK_CLDPRB和MSK_SNWPRB）

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此星光明 发表于 2024/07/24 11:15:25 2024/07/24
【摘要】 ​目录简介数据时间数据提供者Collection Snippet波段名称Class Table: SCL影像属性代码结果 简介2022年1月25日之后，PROCESSING_BASELINE为“04.00”或以上的Sentinel-2场景的DN（值）范围移动了1000。HARMONIZED集合将新场景中的数据转移到与旧场景相同的范围内。 Sentinel-2是一项宽范围、高分辨率、多光谱成像...

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目录

简介

数据时间

数据提供者

Collection Snippet

波段名称

Class Table: SCL

影像属性

代码

结果 


简介

2022年1月25日之后，PROCESSING_BASELINE为“04.00”或以上的Sentinel-2场景的DN（值）范围移动了1000。HARMONIZED集合将新场景中的数据转移到与旧场景相同的范围内。 Sentinel-2是一项宽范围、高分辨率、多光谱成像任务，支持Copernicus土地监测研究，包括监测植被、土壤和水覆盖，以及观察内陆水道和沿海地区。 Sentinel-2 L2数据从scihub下载。它们是通过运行sen 2cor来计算的。警告：ESA没有为所有L1资产生成L2数据，并且早期的L2覆盖范围并非全球性。 这些资产包含12个UINT 16光谱带，代表按10000缩放的SR（与L1数据不同，没有B10）。还有几个L2特定的乐队（详细信息请参阅乐队列表）。有关详细信息，请参阅Sentinel-2用户手册。此外，还存在三个QA频段，其中一个（QA 60）是具有云屏蔽信息的位屏蔽频段。欲了解更多详细信息，请参阅有关如何计算云面罩的完整解释。 Sentinel-2 L2资产的EE资产ID具有以下格式：COPERNICUS/S2_SR/20151128T002653_20151128T102149_T56MNN。这里，第一个数字部分表示传感日期和时间，第二个数字部分表示产品生成日期和时间，最后的6个字符串是指示其UTM网格参考的唯一颗粒标识符（请参阅MGRS）。

数据时间

2017-03-28T00:00:00 -

数据提供者

European Union/ESA/Copernicus

Collection Snippet

ee.ImageCollection("COPERNICUS/S2_SR_HARMONIZED"

波段名称
Name Description Min Max Resolution Units Wavelength Scale
B1 Aerosols 60 meters 443.9nm (S2A) / 442.3nm (S2B) 0.0001
B2 Blue 10 meters 496.6nm (S2A) / 492.1nm (S2B) 0.0001
B3 Green 10 meters 560nm (S2A) / 559nm (S2B) 0.0001
B4 Red 10 meters 664.5nm (S2A) / 665nm (S2B) 0.0001
B5 Red Edge 1 20 meters 703.9nm (S2A) / 703.8nm (S2B) 0.0001
B6 Red Edge 2 20 meters 740.2nm (S2A) / 739.1nm (S2B) 0.0001
B7 Red Edge 3 20 meters 782.5nm (S2A) / 779.7nm (S2B) 0.0001
B8 NIR 10 meters 835.1nm (S2A) / 833nm (S2B) 0.0001
B8A Red Edge 4 20 meters 864.8nm (S2A) / 864nm (S2B) 0.0001
B9 Water vapor 60 meters 945nm (S2A) / 943.2nm (S2B) 0.0001
B11 SWIR 1 20 meters 1613.7nm (S2A) / 1610.4nm (S2B) 0.0001
B12 SWIR 2 20 meters 2202.4nm (S2A) / 2185.7nm (S2B) 0.0001
AOT Aerosol Optical Thickness 10 meters 0.001
WVP Water Vapor Pressure. The height the water would occupy if the vapor were condensed into liquid and spread evenly across the column. 10 meters cm 0.001
SCL Scene Classification Map (The "No Data" value of 0 is masked out) 1 11 20 meters 0
TCI_R True Color Image, Red channel 10 meters 0
TCI_G True Color Image, Green channel 10 meters 0
TCI_B True Color Image, Blue channel 10 meters 0
MSK_CLDPRB Cloud Probability Map (missing in some products) 0 100 20 meters 0
MSK_SNWPRB Snow Probability Map (missing in some products) 0 100 10 meters 0
QA10 Always empty 10 meters 0
QA20 Always empty 20 meters 0
QA60 Cloud mask 60 meters 0
QA60 Bitmask
  • Bits 0-9: Unused
    • Bit 10: Opaque clouds
      • 0: No opaque clouds
      • 1: Opaque clouds present
    • Bit 11: Cirrus clouds
      • 0: No cirrus clouds
      • 1: Cirrus clouds present
    Class Table: SCL
    Value Color Color Value Description
    1 #ff0004 Saturated or defective
    2 #868686 Dark Area Pixels
    3 #774b0a Cloud Shadows
    4 #10d22c Vegetation
    5 #ffff52 Bare Soils
    6 #0000ff Water
    7 #818181 Clouds Low Probability / Unclassified
    8 #c0c0c0 Clouds Medium Probability
    9 #f1f1f1 Clouds High Probability
    10 #bac5eb Cirrus
    11 #52fff9 Snow / Ice
    影像属性
    Name Type Description
    AOT_RETRIEVAL_ACCURACY Double Accuracy of Aerosol Optical thickness model
    CLOUDY_PIXEL_PERCENTAGE Double Granule-specific cloudy pixel percentage taken from the original metadata
    CLOUD_COVERAGE_ASSESSMENT Double Cloudy pixel percentage for the whole archive that contains this granule. Taken from the original metadata
    CLOUDY_SHADOW_PERCENTAGE Double Percentage of pixels classified as cloud shadow
    DARK_FEATURES_PERCENTAGE Double Percentage of pixels classified as dark features or shadows
    DATASTRIP_ID String Unique identifier of the datastrip Product Data Item (PDI)
    DATATAKE_IDENTIFIER String Uniquely identifies a given Datatake. The ID contains the Sentinel-2 satellite, start date and time, absolute orbit number, and processing baseline.
    DATATAKE_TYPE String MSI operation mode
    DEGRADED_MSI_DATA_PERCENTAGE Double Percentage of degraded MSI and ancillary data
    FORMAT_CORRECTNESS String Synthesis of the On-Line Quality Control (OLQC) checks performed at granule (Product_Syntax) and datastrip (Product Syntax and DS_Consistency) levels
    GENERAL_QUALITY String Synthesis of the OLQC checks performed at the datastrip level (Relative_Orbit_Number)
    GENERATION_TIME Double Product generation time
    GEOMETRIC_QUALITY String Synthesis of the OLQC checks performed at the datastrip level (Attitude_Quality_Indicator)
    GRANULE_ID String Unique identifier of the granule PDI (PDI_ID)
    HIGH_PROBA_CLOUDS_PERCENTAGE Double Percentage of pixels classified as high probability clouds
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B1 Double Mean value containing viewing incidence azimuth angle average for band B1 and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B2 Double Mean value containing viewing incidence azimuth angle average for band B2 and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B3 Double Mean value containing viewing incidence azimuth angle average for band B3 and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B4 Double Mean value containing viewing incidence azimuth angle average for band B4 and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B5 Double Mean value containing viewing incidence azimuth angle average for band B5 and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B6 Double Mean value containing viewing incidence azimuth angle average for band B6 and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B7 Double Mean value containing viewing incidence azimuth angle average for band B7 and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B8 Double Mean value containing viewing incidence azimuth angle average for band B8 and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B8A Double Mean value containing viewing incidence azimuth angle average for band B8a and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B9 Double Mean value containing viewing incidence azimuth angle average for band B9 and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B10 Double Mean value containing viewing incidence azimuth angle average for band B10 and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B11 Double Mean value containing viewing incidence azimuth angle average for band B11 and for all detectors
    MEAN_INCIDENCE_AZIMUTH_ANGLE_B12 Double Mean value containing viewing incidence azimuth angle average for band B12 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B1 Double Mean value containing viewing incidence zenith angle average for band B1 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B2 Double Mean value containing viewing incidence zenith angle average for band B2 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B3 Double Mean value containing viewing incidence zenith angle average for band B3 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B4 Double Mean value containing viewing incidence zenith angle average for band B4 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B5 Double Mean value containing viewing incidence zenith angle average for band B5 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B6 Double Mean value containing viewing incidence zenith angle average for band B6 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B7 Double Mean value containing viewing incidence zenith angle average for band B7 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B8 Double Mean value containing viewing incidence zenith angle average for band B8 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B8A Double Mean value containing viewing incidence zenith angle average for band B8a and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B9 Double Mean value containing viewing incidence zenith angle average for band B9 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B10 Double Mean value containing viewing incidence zenith angle average for band B10 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B11 Double Mean value containing viewing incidence zenith angle average for band B11 and for all detectors
    MEAN_INCIDENCE_ZENITH_ANGLE_B12 Double Mean value containing viewing incidence zenith angle average for band B12 and for all detectors
    MEAN_SOLAR_AZIMUTH_ANGLE Double Mean value containing sun azimuth angle average for all bands and detectors
    MEAN_SOLAR_ZENITH_ANGLE Double Mean value containing sun zenith angle average for all bands and detectors
    MEDIUM_PROBA_CLOUDS_PERCENTAGE Double Percentage of pixels classified as medium probability clouds
    MGRS_TILE String US-Military Grid Reference System (MGRS) tile
    NODATA_PIXEL_PERCENTAGE Double Percentage of No Data pixels
    NOT_VEGETATED_PERCENTAGE Double Percentage of pixels classified as non-vegetated
    PROCESSING_BASELINE String Configuration baseline used at the time of the product generation in terms of processor software version and major Ground Image Processing Parameters (GIPP) version
    PRODUCT_ID String The full id of the original Sentinel-2 product
    RADIATIVE_TRANSFER_ACCURACY Double Accuracy of radiative transfer model
    RADIOMETRIC_QUALITY String Based on the OLQC reports contained in the Datastrips/QI_DATA with RADIOMETRIC_QUALITY checklist name
    REFLECTANCE_CONVERSION_CORRECTION Double Earth-Sun distance correction factor
    SATURATED_DEFECTIVE_PIXEL_PERCENTAGE Double Percentage of saturated or defective pixels
    SENSING_ORBIT_DIRECTION String Imaging orbit direction
    SENSING_ORBIT_NUMBER Double Imaging orbit number
    SENSOR_QUALITY String Synthesis of the OLQC checks performed at granule (Missing_Lines, Corrupted_ISP, and Sensing_Time) and datastrip (Degraded_SAD and Datation_Model) levels
    SOLAR_IRRADIANCE_B1 Double Mean solar exoatmospheric irradiance for band B1
    SOLAR_IRRADIANCE_B2 Double Mean solar exoatmospheric irradiance for band B2
    SOLAR_IRRADIANCE_B3 Double Mean solar exoatmospheric irradiance for band B3
    SOLAR_IRRADIANCE_B4 Double Mean solar exoatmospheric irradiance for band B4
    SOLAR_IRRADIANCE_B5 Double Mean solar exoatmospheric irradiance for band B5
    SOLAR_IRRADIANCE_B6 Double Mean solar exoatmospheric irradiance for band B6
    SOLAR_IRRADIANCE_B7 Double Mean solar exoatmospheric irradiance for band B7
    SOLAR_IRRADIANCE_B8 Double Mean solar exoatmospheric irradiance for band B8
    SOLAR_IRRADIANCE_B8A Double Mean solar exoatmospheric irradiance for band B8a
    SOLAR_IRRADIANCE_B9 Double Mean solar exoatmospheric irradiance for band B9
    SOLAR_IRRADIANCE_B10 Double Mean solar exoatmospheric irradiance for band B10
    SOLAR_IRRADIANCE_B11 Double Mean solar exoatmospheric irradiance for band B11
    SOLAR_IRRADIANCE_B12 Double Mean solar exoatmospheric irradiance for band B12
    SNOW_ICE_PERCENTAGE Double Percentage of pixels classified as snow or ice
    SPACECRAFT_NAME String Sentinel-2 spacecraft name: Sentinel-2A, Sentinel-2B
    THIN_CIRRUS_PERCENTAGE Double Percentage of pixels classified as thin cirrus clouds
    UNCLASSIFIED_PERCENTAGE Double Percentage of unclassified pixels
    VEGETATION_PERCENTAGE Double Percentage of pixels classified as vegetation
    WATER_PERCENTAGE Double Percentage of pixels classified as water
    WATER_VAPOUR_RETRIEVAL_ACCURACY Double Declared accuracy of the Water Vapor model

    代码

    var s2 = ee.ImageCollection('COPERNICUS/S2_HARMONIZED').filterDate('2024-04-01', '2024-04-02')
Map.addLayer(s2.select('MSK_CLASSI_OPAQUE'), {min:0, max:1}, 'New OPAQUE')
Map.addLayer(s2.select('MSK_CLASSI_CIRRUS'), {min:0, max:1}, 'New CIRRUS')
Map.addLayer(s2.select('QA60'), {min:0, max:1}, 'New synthetic QA60')

var s2_sr = ee.ImageCollection('COPERNICUS/S2_HARMONIZED').filterDate('2024-04-01', '2024-04-02')
Map.addLayer(s2_sr.select('MSK_CLASSI_OPAQUE'), {min:0, max:1}, 'New SR OPAQUE')
Map.addLayer(s2_sr.select('MSK_CLASSI_CIRRUS'), {min:0, max:1}, 'New SR CIRRUS')
Map.addLayer(s2_sr.select('QA60'), {min:0, max:1}, 'New SR synthetic QA60')

    结果 

    ​ ​

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