[gdal-dev] Reading sentinel 2 L2A datasets

Róbert Špir spir.robert at gmail.com
Thu Nov 2 23:55:57 PDT 2017


Hi all,
I'm using GDAL to process sentinel-2 data (in c++). I have no problem
processing S2B and S2A L1C datasets, I can open them, read the subdatasets
and process the data.
But when I try to open L2A dataset, it looks like there are no subdatasets
and I cannot access the bands.
I have attached gdalinfo output from this dataset and the dataset xml. Is
there any way how I can access the subdatasets or this type of dataset is
not currently supported in GDAL?

Thanks,
Robert
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Driver: SENTINEL2/Sentinel 2
Files: /vsizip//data/tmp/soft/S2A_MSIL2A_20171015T095031_N0205_R079_T33UXP_20171015T095357.zip/S2A_MSIL2A_20171015T095031_N0205_R079_T33UXP_20171015T095357.SAFE/MTD_MSIL2A.xml
Size is 512, 512
Coordinate System is `'
Metadata:
  AOT_RETRIEVAL_ACCURACY=0.0
  CLOUD_COVERAGE_ASSESSMENT=0.1984
  CLOUD_COVERAGE_PERCENTAGE=0.518579
  CLOUD_SHADOW_PERCENTAGE=0.094366
  DARK_FEATURES_PERCENTAGE=1.190103
  DATATAKE_1_DATATAKE_SENSING_START=2017-10-15T09:50:31.026Z
  DATATAKE_1_DATATAKE_TYPE=INS-NOBS
  DATATAKE_1_ID=GS2A_20171015T095031_012088_N02.05
  DATATAKE_1_SENSING_ORBIT_DIRECTION=DESCENDING
  DATATAKE_1_SENSING_ORBIT_NUMBER=79
  DATATAKE_1_SPACECRAFT_NAME=Sentinel-2A
  DEGRADED_ANC_DATA_PERCENTAGE=0
  DEGRADED_MSI_DATA_PERCENTAGE=0
  FOOTPRINT=POLYGON((16.360279246283664 48.74498411169783, 17.852438708473066 48.71769475117851, 17.798094715302927 47.73104447774509, 16.3343313489668 47.75740973734738, 16.360279246283664 48.74498411169783))
  FORMAT_CORRECTNESS_FLAG=PASSED
  GENERAL_QUALITY_FLAG=PASSED
  GENERATION_TIME=2017-10-19T08:52:27Z
  GEOMETRIC_QUALITY_FLAG=PASSED
  HIGH_PROBA_CLOUDS_PERCENTAGE=0.105969
  L1C_TOA_QUANTIFICATION_VALUE=10000
  L1C_TOA_QUANTIFICATION_VALUE_UNIT=none
  L2A_AOT_QUANTIFICATION_VALUE=1000.0
  L2A_AOT_QUANTIFICATION_VALUE_UNIT=none
  L2A_BOA_QUANTIFICATION_VALUE=10000
  L2A_BOA_QUANTIFICATION_VALUE_UNIT=none
  L2A_WVP_QUANTIFICATION_VALUE=1000.0
  L2A_WVP_QUANTIFICATION_VALUE_UNIT=cm
  MEDIUM_PROBA_CLOUDS_PERCENTAGE=0.406588
  NODATA_PIXEL_PERCENTAGE=0.000100
  NOT_VEGETATED_PERCENTAGE=40.847874
  PREVIEW_GEO_INFO=Not applicable
  PREVIEW_IMAGE_URL=Not applicable
  PROCESSING_BASELINE=02.05
  PROCESSING_LEVEL=Level-2Ap
  PRODUCT_START_TIME=2017-10-15T09:50:31.026Z
  PRODUCT_STOP_TIME=2017-10-15T09:50:31.026Z
  PRODUCT_TYPE=S2MSI2Ap
  PRODUCT_URI_1C=S2A_MSIL1C_20171015T095031_N0205_R079_T33UXP_20171015T095357.SAFE
  PRODUCT_URI_2A=S2A_MSIL2A_20171015T095031_N0205_R079_T33UXP_20171015T095357.SAFE
  RADIATIVE_TRANSFER_ACCURAY=0.0
  RADIOMETRIC_QUALITY_FLAG=PASSED
  REFERENCE_BAND=B1
  REFLECTANCE_CONVERSION_U=1.00445351171828
  SATURATED_DEFECTIVE_PIXEL_PERCENTAGE=0.000000
  SENSOR_QUALITY_FLAG=PASSED
  SNOW_ICE_PERCENTAGE=0.002143
  SPECIAL_VALUE_NODATA=0
  SPECIAL_VALUE_SATURATED=65535
  THIN_CIRRUS_PERCENTAGE=0.006022
  UNCLASSIFIED_PERCENTAGE=3.285500
  VEGETATION_PERCENTAGE=52.199417
  WATER_PERCENTAGE=1.862016
  WATER_VAPOUR_RETRIEVAL_ACCURACY=0.0
Corner Coordinates:
Upper Left  (    0.0,    0.0)
Lower Left  (    0.0,  512.0)
Upper Right (  512.0,    0.0)
Lower Right (  512.0,  512.0)
Center      (  256.0,  256.0)
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