HDF5 file, superblock version 0
group /
	attribute L1_path = "SENTINEL1_DS:/home/datawork-cersat-public/cache/project/mpc-sentinel1/data/esa/sentinel-1a/L1/IW/S1A_IW_GRDH_1S/2018/234/S1A_IW_GRDH_1SDV_20180822T210038_20180822T210103_023364_028AA9_1C68.SAFE:IW"
	attribute TITLE = "Sentinel-1 OWI Concatenated Component"
	attribute acquisitionStation = "/"
	attribute ancillary_source = "/home/datawork-cersat-intranet/project/ecmwf/0.125deg/1h/forecasts/2018/234/ecmwf_201808222100.nc"
	attribute bathySource = "/"
	attribute clmSource = "/"
	attribute coverage = "169km * 253km (line * sample )"
	attribute firstMeasurementTime = "2018-08-22T21:00:38Z"
	attribute footprint = "POLYGON((136.42672336008616 33.03495125091724, 133.76501595818058 33.43436291613049, 132.64640162501863 27.779258379058398, 135.15692901698762 27.370588881036124, 136.42672336008616 33.03495125091724))"
	attribute gmf = "cmod5n, gmf_s1_v2"
	attribute hasGap = "False"
	attribute iceSource = "/"
	attribute inversionTabGMF = "cmod5n, gmf_s1_v2"
	attribute ipf = 2.91
	attribute l2ProcessingUtcTime = "2023-06-18T16:29:07Z"
	attribute lastMeasurementTime = "2018-08-22T21:02:13Z"
	attribute missionName = "SENTINEL-1A"
	attribute missionPhase = "Test"
	attribute multidataset = "False"
	attribute orbit_pass = "Descending"
	attribute owiAlgorithmVersion = "/"
	attribute owiNoiseCorrection = "False"
	attribute owiWindDirectionSrc = "/"
	attribute owiWindSpeedSrc = "owiWindSpeed"
	attribute platform = "SENTINEL-1A"
	attribute platform_heading = -167.1727482789745
	attribute polarisation = "VV/VH"
	attribute polarisationRatio = "/"
	attribute pols = "VV VH"
	attribute processingCenter = "/"
	attribute product = "GRDH"
	attribute productOwner = "IFREMER"
	attribute pythonVersion = "3.1"
	attribute safe = "S1A_IW_GRDH_1SDV_20180822T210038_20180822T210103_023364_028AA9_1C68.SAFE"
	attribute short_name = "SENTINEL1_DS:S1A_IW_GRDH_1SDV_20180822T210038_20180822T210103_023364_028AA9_1C68.SAFE:IW"
	attribute slicesFootprints = "POLYGON((136.42672336008616 33.03495125091724, 133.76501595818058 33.43436291613049, 133.46737264763124 31.942937551545164, 136.0850421442087 31.54131005665794, 136.42672336008616 33.03495125091724));POLYGON((136.0822240358564 31.528889844496987, 133.46490735502874 31.93053688591791, 133.1692612591889 30.438600922818345, 135.74565249878165 30.034566490567382, 136.0822240358564 31.528889844496987));POLYGON((135.74287460716485 30.02214101665959, 133.16681124561933 30.42619660768803, 132.87282452556968 28.933775351826686, 135.4108804226709 28.52717349145383, 135.74287460716485 30.02214101665959));POLYGON((135.4081384575984 28.514742867298573, 132.87038678770423 28.921366779470993, 132.64640162501863 27.779258379058398, 135.15692901698762 27.370588881036124, 135.4081384575984 28.514742867298573))"
	attribute softwareVersion = "/"
	attribute sourceProduct = "S1A S1A S1A S1A"
	attribute start_date = "2018-08-22 21:00:38.803557"
	attribute stop_date = "2018-08-22 21:01:03.801947"
	attribute swath = "IW"
	attribute wnf_3km_average = "/"
	attribute xsar_version = "0.9.7.dev164+g25db1e9"
	attribute xsarsea_version = "0.3.dev122+ge1d9455"
dataset /owiAzSize: float32, shape (629)
dataset /owiDsig_cross: float64, shape (629, 253)
	attribute comment = "variable used to ponderate copol and crosspol"
dataset /owiEcmwfWindDirection: float64, shape (629, 253)
	attribute comment = "angle in radians, anticlockwise, 0=sample"
dataset /owiEcmwfWindSpeed: float64, shape (629, 253)
dataset /owiElevationAngle: float64, shape (629, 253)
	attribute history = (text block)
| elevationAngle:
|   annotation/s1a.xml:
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/line
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/pixel
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/elevationAngle
dataset /owiHeading: float32, shape (629, 253)
	attribute _FillValue = 9999.99023
	attribute comment = "at ground level, computed from lon/lat in azimuth direction"
	attribute long_name = "Platform heading (azimuth from North)"
	attribute units = "Degrees"
dataset /owiIncidenceAngle: float64, shape (629, 253)
	attribute history = (text block)
| incidenceAngle:
|   annotation/s1a.xml:
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/line
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/pixel
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/incidenceAngle
dataset /owiLandFlag: int8, shape (629, 253)
	attribute flag_meanings = "valid land ice no_valid"
	attribute flag_values = 0, 1, 2, 3
	attribute history = "land_mask: cartopy.feature.NaturalEarthFeature land\n"
	attribute long_name = "Mask of data"
	attribute meaning = "0: ocean , 1: land"
	attribute valid_range = 0, 3
dataset /owiLat: float64, shape (629, 253)
	attribute history = (text block)
| latitude:
|   annotation/s1a.xml:
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/line
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/pixel
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/latitude
dataset /owiLon: float64, shape (629, 253)
	attribute history = (text block)
| longitude:
|   annotation/s1a.xml:
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/line
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/pixel
|   - /product/geolocationGrid/geolocationGridPointList/geolocationGridPoint/longitude
dataset /owiMask: int8, shape (629, 253)
dataset /owiNesz: float64, shape (629, 253)
dataset /owiNesz_cross: float64, shape (629, 253)
dataset /owiNesz_cross_final: float64, shape (629, 253)
	attribute comment = "nesz has been flattened using windspeed.nesz_flattening"
dataset /owiNrcs: float64, shape (629, 253)
	attribute long_name = "Normalized Radar Cross Section"
	attribute units = "m^2 / m^2"
dataset /owiNrcs_cross: float64, shape (629, 253)
	attribute long_name = "Normalized Radar Cross Section"
	attribute units = "m^2 / m^2"
dataset /owiNrcs_cross_no_noise_correction: float64, shape (629, 253)
	attribute long_name = "Normalized Radar Cross Section, no noise correction applied"
	attribute units = "m^2 / m^2"
dataset /owiNrcs_no_noise_correction: float64, shape (629, 253)
	attribute long_name = "Normalized Radar Cross Section, no noise correction applied"
	attribute units = "m^2 / m^2"
dataset /owiRaSize: float32, shape (253)
dataset /owiWindFilter: float64, shape (629, 253)
	attribute _FillValue = -1.0
	attribute comment = "not done yet"
	attribute flag_meanings = "homogeneous_NRCS, heterogeneous_from_co-polarization_NRCS, heterogeneous_from_cross-polarization_NRCS, heterogeneous_from_dual-polarization_NRCS"
	attribute flag_values = 0, 1, 2, 3
	attribute long_name = "Quality flag taking into account the local heterogeneity"
	attribute units = "m^2 / m^2"
	attribute valid_range = 0.0, 3.0
dataset /owiWindQuality: float64, shape (629, 253)
	attribute _FillValue = -1.0
	attribute comment = "not done yet"
	attribute flag_meanings = "good medium low poor"
	attribute flag_values = 0, 1, 2, 3
	attribute long_name = "Quality flag taking into account the consistency_between_wind_inverted_and_NRCS_and_Doppler_measured"
	attribute units = "m^2 / m^2"
	attribute valid_range = 0.0, 3.0
dataset /owiWindSpeed: float64, shape (629, 253)
	attribute _FillValue = -9999.0
	attribute comment = "wind speed inverted from model gmf_cmod5n (VV) and gmf_s1_v2 (VH)"
	attribute model = "gmf_cmod5n gmf_s1_v2"
	attribute units = "m/s"
dataset /owiWindSpeed_co: float64, shape (629, 253)
	attribute _FillValue = -9999.0
	attribute comment = "wind speed inverted from model gmf_cmod5n (VV)"
	attribute model = "gmf_cmod5n"
	attribute units = "m/s"
dataset /owiWindSpeed_cross: float64, shape (629, 253)
	attribute comment = "wind speed inverted from model gmf_s1_v2 (VH)"
	attribute model = "gmf_s1_v2"
	attribute units = "m/s"
dataset /sliceNumber: uint32, shape (629, 253)