Dfs0 - CMEMS in-situ data

import pandas as pd
import xarray as xr
import mikeio

fino = xr.open_dataset("../tests/testdata/NO_TS_MO_FINO1_202209.nc")
fino

<xarray.Dataset>
Dimensions:      (TIME: 2879, LATITUDE: 2879, LONGITUDE: 2879, DEPTH: 7,
                  POSITION: 2879)
Coordinates:
  * TIME         (TIME) datetime64[ns] 2022-09-01 ... 2022-09-30T23:31:59.999...
  * LATITUDE     (LATITUDE) float32 54.0 54.0 54.0 54.0 ... 54.0 54.0 54.0 54.0
  * LONGITUDE    (LONGITUDE) float32 6.583 6.583 6.583 ... 6.583 6.583 6.583
    DEPH         (TIME, DEPTH) float32 0.0 0.5 3.0 6.0 ... 6.0 10.0 15.0 25.0
Dimensions without coordinates: DEPTH, POSITION
Data variables: (12/22)
    DEPH_QC      (TIME, DEPTH) float32 7.0 7.0 7.0 7.0 7.0 ... 7.0 7.0 7.0 7.0
    TIME_QC      (TIME) float32 1.0 1.0 1.0 1.0 1.0 1.0 ... 1.0 1.0 1.0 1.0 1.0
    POSITION_QC  (POSITION) float32 7.0 7.0 7.0 7.0 7.0 ... 7.0 7.0 7.0 7.0 7.0
    TEMP         (TIME, DEPTH) float64 nan nan nan nan nan ... nan nan nan nan
    TEMP_QC      (TIME, DEPTH) float32 nan 9.0 9.0 9.0 9.0 ... 9.0 9.0 9.0 9.0
    VHM0         (TIME, DEPTH) float64 nan nan nan nan nan ... nan nan nan nan
    ...           ...
    VTPK_DM      (TIME, DEPTH) object nan nan nan nan nan ... nan nan nan nan
    VTZA         (TIME, DEPTH) float64 4.12 nan nan nan nan ... nan nan nan nan
    VTZA_QC      (TIME, DEPTH) float32 1.0 nan nan nan nan ... nan nan nan nan
    VPED         (TIME, DEPTH) float64 nan nan nan nan nan ... nan nan nan nan
    VPED_QC      (TIME, DEPTH) float32 9.0 nan nan nan nan ... nan nan nan nan
    VPED_DM      (TIME, DEPTH) object nan nan nan nan nan ... nan nan nan nan
Attributes: (12/46)
    platform_code:                  FINO1
    platform_name:                  
    data_mode:                      M
    title:                          NWS - NRT in situ Observations
    summary:                        Oceanographic data from North West Shelf
    naming_authority:               Copernicus Marine In Situ
    ...                             ...
    doi:                            
    pi_name:                        
    qc_manual:                      OceanSITES User's Manual v1.2
    date_update:                    2022-10-07T05:39:40Z
    history:                        2022-10-01T18:04:25Z : Creation; 2022-10-...
    wmo_inst_type:                  

xarray.Dataset

• Dimensions:
  • TIME: 2879
  • LATITUDE: 2879
  • LONGITUDE: 2879
  • DEPTH: 7
  • POSITION: 2879
• Coordinates: (4)
  • TIME
    (TIME)
    datetime64[ns]
    2022-09-01 ... 2022-09-30T23:31:...

    long_name :

    Time

    standard_name :

    time

    valid_min :

    -90000.0

    valid_max :

    90000.0

    uncertainty :

    comment :

    axis :

    T

    ancillary_variables :

    TIME_QC

    array(['2022-09-01T00:00:00.000000000', '2022-09-01T00:02:00.000000000',
           '2022-09-01T00:30:00.000000000', ..., '2022-09-30T23:02:00.000000000',
           '2022-09-30T23:30:00.000000000', '2022-09-30T23:31:59.999999744'],
          dtype='datetime64[ns]')

  • LATITUDE
    (LATITUDE)
    float32
    54.0 54.0 54.0 ... 54.0 54.0 54.0

    long_name :

    Latitude of each location

    standard_name :

    latitude

    units :

    degree_north

    valid_min :

    -90.0

    valid_max :

    90.0

    uncertainty :

    comment :

    axis :

    Y

    ancillary_variables :

    POSITION_QC

    array([54., 54., 54., ..., 54., 54., 54.], dtype=float32)

  • LONGITUDE
    (LONGITUDE)
    float32
    6.583 6.583 6.583 ... 6.583 6.583

    long_name :

    Longitude of each location

    standard_name :

    longitude

    units :

    degree_east

    valid_min :

    -180.0

    valid_max :

    180.0

    uncertainty :

    comment :

    axis :

    X

    ancillary_variables :

    POSITION_QC

    array([6.583333, 6.583333, 6.583333, ..., 6.583333, 6.583333, 6.583333],
          dtype=float32)

  • DEPH
    (TIME, DEPTH)
    float32
    ...

    long_name :

    Depth

    standard_name :

    depth

    units :

    m

    positive :

    down

    valid_min :

    -12000.0

    valid_max :

    12000.0

    uncertainty :

    comment :

    axis :

    Z

    reference :

    sea_level

    data_mode :

    R

    ancillary_variables :

    DEPH_QC

    array([[ 0. ,  0.5,  3. , ..., 10. , 15. , 25. ],
           [ 0. ,  0.5,  3. , ..., 10. , 15. , 25. ],
           [ 0. ,  0.5,  3. , ..., 10. , 15. , 25. ],
           ...,
           [ 0. ,  0.5,  3. , ..., 10. , 15. , 25. ],
           [ 0. ,  0.5,  3. , ..., 10. , 15. , 25. ],
           [ 0. ,  0.5,  3. , ..., 10. , 15. , 25. ]], dtype=float32)

• Data variables: (22)
  • DEPH_QC
    (TIME, DEPTH)
    float32
    ...

    long_name :

    Depth quality flag

    conventions :

    Copernicus Marine In Situ reference table 2

    valid_min :

    0

    valid_max :

    9

    flag_values :

    [0 1 2 3 4 5 6 7 8 9]

    flag_meanings :

    no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value

    array([[7., 7., 7., ..., 7., 7., 7.],
           [7., 7., 7., ..., 7., 7., 7.],
           [7., 7., 7., ..., 7., 7., 7.],
           ...,
           [7., 7., 7., ..., 7., 7., 7.],
           [7., 7., 7., ..., 7., 7., 7.],
           [7., 7., 7., ..., 7., 7., 7.]], dtype=float32)

  • TIME_QC
    (TIME)
    float32
    ...

    long_name :

    Time quality flag

    conventions :

    Copernicus Marine In Situ reference table 2

    valid_min :

    0

    valid_max :

    9

    flag_values :

    [0 1 2 3 4 5 6 7 8 9]

    flag_meanings :

    no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value

    array([1., 1., 1., ..., 1., 1., 1.], dtype=float32)

  • POSITION_QC
    (POSITION)
    float32
    ...

    long_name :

    Position quality flag

    conventions :

    Copernicus Marine In Situ reference table 2

    valid_min :

    0

    valid_max :

    9

    flag_values :

    [0 1 2 3 4 5 6 7 8 9]

    flag_meanings :

    no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value

    array([7., 7., 7., ..., 7., 7., 7.], dtype=float32)

  • TEMP
    (TIME, DEPTH)
    float64
    ...

    standard_name :

    sea_water_temperature

    units :

    degrees_C

    long_name :

    Sea temperature

    valid_min :

    -2000

    valid_max :

    32000

    comment :

    uncertainty :

    accuracy :

    precision :

    resolution :

    cell_methods :

    sensor_depth :

    0.0

    sensor_mount :

    sensor_orientation :

    data_mode :

    R

    ancillary_variables :

    TEMP_QC

    array([[      nan,       nan,       nan, ...,       nan,       nan,       nan],
           [      nan, 19.400001,       nan, ...,       nan,       nan,       nan],
           [      nan,       nan,       nan, ...,       nan,       nan,       nan],
           ...,
           [      nan, 16.950001,       nan, ...,       nan,       nan,       nan],
           [      nan,       nan,       nan, ...,       nan,       nan,       nan],
           [      nan, 16.950001,       nan, ...,       nan,       nan,       nan]])

  • TEMP_QC
    (TIME, DEPTH)
    float32
    ...

    long_name :

    Sea temperature quality flag

    conventions :

    Copernicus Marine In Situ reference table 2

    valid_min :

    0

    valid_max :

    9

    flag_values :

    [0 1 2 3 4 5 6 7 8 9]

    flag_meanings :

    no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value

    array([[nan,  9.,  9., ...,  9.,  9.,  9.],
           [nan,  1.,  9., ...,  9.,  9.,  9.],
           [nan,  9.,  9., ...,  9.,  9.,  9.],
           ...,
           [nan,  1.,  9., ...,  9.,  9.,  9.],
           [nan,  9.,  9., ...,  9.,  9.,  9.],
           [nan,  1.,  9., ...,  9.,  9.,  9.]], dtype=float32)

  • VHM0
    (TIME, DEPTH)
    float64
    ...

    standard_name :

    sea_surface_wave_significant_height

    units :

    m

    long_name :

    Spectral significant wave height (Hm0)

    valid_min :

    1

    valid_max :

    25000

    comment :

    uncertainty :

    accuracy :

    precision :

    resolution :

    cell_methods :

    type_of_analysis :

    spectral analysis

    sensor_depth :

    0.0

    sensor_mount :

    sensor_orientation :

    data_mode :

    M

    ancillary_variables :

    VHM0_QC VHM0_DM

    array([[ nan,  nan,  nan, ...,  nan,  nan,  nan],
           [1.11,  nan,  nan, ...,  nan,  nan,  nan],
           [ nan,  nan,  nan, ...,  nan,  nan,  nan],
           ...,
           [2.41,  nan,  nan, ...,  nan,  nan,  nan],
           [ nan,  nan,  nan, ...,  nan,  nan,  nan],
           [2.51,  nan,  nan, ...,  nan,  nan,  nan]])

  • VHM0_QC
    (TIME, DEPTH)
    float32
    ...

    long_name :

    Spectral significant wave height (Hm0) quality flag

    conventions :

    Copernicus Marine In Situ reference table 2

    valid_min :

    0

    valid_max :

    9

    flag_values :

    [0 1 2 3 4 5 6 7 8 9]

    flag_meanings :

    no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value

    array([[ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan],
           ...,
           [ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan]], dtype=float32)

  • VHM0_DM
    (TIME, DEPTH)
    object
    ...

    long_name :

    Spectral significant wave height (Hm0) method of data processing

    conventions :

    Copernicus Marine In Situ reference table 1

    flag_values :

    R, A, D

    flag_meanings :

    real-time adjusted-in-real-time delayed-mode

    array([[nan, nan, nan, ..., nan, nan, nan],
           [b'R', nan, nan, ..., nan, nan, nan],
           [nan, nan, nan, ..., nan, nan, nan],
           ...,
           [b'R', nan, nan, ..., nan, nan, nan],
           [nan, nan, nan, ..., nan, nan, nan],
           [b'R', nan, nan, ..., nan, nan, nan]], dtype=object)

  • VZMX
    (TIME, DEPTH)
    float64
    ...

    standard_name :

    sea_surface_wave_maximum_height

    units :

    m

    long_name :

    Maximum zero crossing wave height (Hmax)

    valid_min :

    0

    valid_max :

    40000

    comment :

    uncertainty :

    accuracy :

    precision :

    resolution :

    cell_methods :

    type_of_analysis :

    zero crossing

    sensor_depth :

    0.0

    sensor_mount :

    sensor_orientation :

    data_mode :

    M

    ancillary_variables :

    VZMX_QC VZMX_DM

    array([[1.71,  nan,  nan, ...,  nan,  nan,  nan],
           [ nan,  nan,  nan, ...,  nan,  nan,  nan],
           [1.77,  nan,  nan, ...,  nan,  nan,  nan],
           ...,
           [ nan,  nan,  nan, ...,  nan,  nan,  nan],
           [4.19,  nan,  nan, ...,  nan,  nan,  nan],
           [ nan,  nan,  nan, ...,  nan,  nan,  nan]])

  • VZMX_QC
    (TIME, DEPTH)
    float32
    ...

    long_name :

    Maximum zero crossing wave height (Hmax) quality flag

    conventions :

    Copernicus Marine In Situ reference table 2

    valid_min :

    0

    valid_max :

    9

    flag_values :

    [0 1 2 3 4 5 6 7 8 9]

    flag_meanings :

    no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value

    array([[ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan],
           ...,
           [ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan]], dtype=float32)

  • VZMX_DM
    (TIME, DEPTH)
    object
    ...

    long_name :

    Maximum zero crossing wave height (Hmax) method of data processing

    conventions :

    Copernicus Marine In Situ reference table 1

    flag_values :

    R, A, D

    flag_meanings :

    real-time adjusted-in-real-time delayed-mode

    array([[b'R', nan, nan, ..., nan, nan, nan],
           [nan, nan, nan, ..., nan, nan, nan],
           [b'R', nan, nan, ..., nan, nan, nan],
           ...,
           [nan, nan, nan, ..., nan, nan, nan],
           [b'R', nan, nan, ..., nan, nan, nan],
           [nan, nan, nan, ..., nan, nan, nan]], dtype=object)

  • VTM02
    (TIME, DEPTH)
    float64
    ...

    standard_name :

    sea_surface_wave_mean_period_from_variance_spectral_density_second_frequency_moment

    units :

    s

    long_name :

    Spectral moments (0,2) wave period (Tm02)

    valid_min :

    1000

    valid_max :

    25000

    comment :

    uncertainty :

    accuracy :

    precision :

    resolution :

    cell_methods :

    type_of_analysis :

    spectral analysis

    sensor_depth :

    0.0

    sensor_mount :

    sensor_orientation :

    data_mode :

    M

    ancillary_variables :

    VTM02_QC VTM02_DM

    array([[  nan,   nan,   nan, ...,   nan,   nan,   nan],
           [4.   ,   nan,   nan, ...,   nan,   nan,   nan],
           [  nan,   nan,   nan, ...,   nan,   nan,   nan],
           ...,
           [4.878,   nan,   nan, ...,   nan,   nan,   nan],
           [  nan,   nan,   nan, ...,   nan,   nan,   nan],
           [5.063,   nan,   nan, ...,   nan,   nan,   nan]])

  • VTM02_QC
    (TIME, DEPTH)
    float32
    ...

    long_name :

    Spectral moments (0,2) wave period (Tm02) quality flag

    conventions :

    Copernicus Marine In Situ reference table 2

    valid_min :

    0

    valid_max :

    9

    flag_values :

    [0 1 2 3 4 5 6 7 8 9]

    flag_meanings :

    no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value

    array([[ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan],
           ...,
           [ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan]], dtype=float32)

  • VTM02_DM
    (TIME, DEPTH)
    object
    ...

    long_name :

    Spectral moments (0,2) wave period (Tm02) method of data processing

    conventions :

    Copernicus Marine In Situ reference table 1

    flag_values :

    R, A, D

    flag_meanings :

    real-time adjusted-in-real-time delayed-mode

    array([[nan, nan, nan, ..., nan, nan, nan],
           [b'R', nan, nan, ..., nan, nan, nan],
           [nan, nan, nan, ..., nan, nan, nan],
           ...,
           [b'R', nan, nan, ..., nan, nan, nan],
           [nan, nan, nan, ..., nan, nan, nan],
           [b'R', nan, nan, ..., nan, nan, nan]], dtype=object)

  • VTPK
    (TIME, DEPTH)
    float64
    ...

    standard_name :

    sea_surface_wave_period_at_variance_spectral_density_maximum

    units :

    s

    long_name :

    Wave period at spectral peak / peak period (Tp)

    valid_min :

    1000

    valid_max :

    30000

    comment :

    uncertainty :

    accuracy :

    precision :

    resolution :

    cell_methods :

    type_of_analysis :

    spectral analysis

    sensor_depth :

    0.0

    sensor_mount :

    sensor_orientation :

    data_mode :

    M

    ancillary_variables :

    VTPK_QC VTPK_DM

    array([[ nan,  nan,  nan, ...,  nan,  nan,  nan],
           [5.  ,  nan,  nan, ...,  nan,  nan,  nan],
           [ nan,  nan,  nan, ...,  nan,  nan,  nan],
           ...,
           [6.25,  nan,  nan, ...,  nan,  nan,  nan],
           [ nan,  nan,  nan, ...,  nan,  nan,  nan],
           [6.67,  nan,  nan, ...,  nan,  nan,  nan]])

  • VTPK_QC
    (TIME, DEPTH)
    float32
    ...

    long_name :

    Wave period at spectral peak / peak period (Tp) quality flag

    conventions :

    Copernicus Marine In Situ reference table 2

    valid_min :

    0

    valid_max :

    9

    flag_values :

    [0 1 2 3 4 5 6 7 8 9]

    flag_meanings :

    no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value

    array([[ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan],
           ...,
           [ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan]], dtype=float32)

  • VTPK_DM
    (TIME, DEPTH)
    object
    ...

    long_name :

    Wave period at spectral peak / peak period (Tp) method of data processing

    conventions :

    Copernicus Marine In Situ reference table 1

    flag_values :

    R, A, D

    flag_meanings :

    real-time adjusted-in-real-time delayed-mode

    array([[nan, nan, nan, ..., nan, nan, nan],
           [b'R', nan, nan, ..., nan, nan, nan],
           [nan, nan, nan, ..., nan, nan, nan],
           ...,
           [b'R', nan, nan, ..., nan, nan, nan],
           [nan, nan, nan, ..., nan, nan, nan],
           [b'R', nan, nan, ..., nan, nan, nan]], dtype=object)

  • VTZA
    (TIME, DEPTH)
    float64
    ...

    standard_name :

    sea_surface_wave_mean_period

    units :

    s

    long_name :

    Average zero crossing wave period (Tz)

    valid_min :

    2000

    valid_max :

    25000

    comment :

    uncertainty :

    accuracy :

    precision :

    resolution :

    cell_methods :

    type_of_analysis :

    zero crossing

    sensor_depth :

    0.0

    sensor_mount :

    sensor_orientation :

    data_mode :

    R

    ancillary_variables :

    VTZA_QC

    array([[4.12,  nan,  nan, ...,  nan,  nan,  nan],
           [ nan,  nan,  nan, ...,  nan,  nan,  nan],
           [4.18,  nan,  nan, ...,  nan,  nan,  nan],
           ...,
           [ nan,  nan,  nan, ...,  nan,  nan,  nan],
           [5.44,  nan,  nan, ...,  nan,  nan,  nan],
           [ nan,  nan,  nan, ...,  nan,  nan,  nan]])

  • VTZA_QC
    (TIME, DEPTH)
    float32
    ...

    long_name :

    Average zero crossing wave period (Tz) quality flag

    conventions :

    Copernicus Marine In Situ reference table 2

    valid_min :

    0

    valid_max :

    9

    flag_values :

    [0 1 2 3 4 5 6 7 8 9]

    flag_meanings :

    no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value

    array([[ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan],
           ...,
           [ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan]], dtype=float32)

  • VPED
    (TIME, DEPTH)
    float64
    ...

    standard_name :

    sea_surface_wave_from_direction_at_variance_spectral_density_maximum

    units :

    degree

    long_name :

    Wave principal direction at spectral peak

    valid_min :

    0

    valid_max :

    360000

    comment :

    uncertainty :

    accuracy :

    precision :

    resolution :

    cell_methods :

    type_of_analysis :

    spectral analysis

    sensor_depth :

    0.0

    sensor_mount :

    sensor_orientation :

    data_mode :

    M

    ancillary_variables :

    VPED_QC VPED_DM

    array([[       nan,        nan,        nan, ...,        nan,        nan,
                   nan],
           [  2.8     ,        nan,        nan, ...,        nan,        nan,
                   nan],
           [       nan,        nan,        nan, ...,        nan,        nan,
                   nan],
           ...,
           [234.800011,        nan,        nan, ...,        nan,        nan,
                   nan],
           [       nan,        nan,        nan, ...,        nan,        nan,
                   nan],
           [244.700012,        nan,        nan, ...,        nan,        nan,
                   nan]])

  • VPED_QC
    (TIME, DEPTH)
    float32
    ...

    long_name :

    Wave principal direction at spectral peak quality flag

    conventions :

    Copernicus Marine In Situ reference table 2

    valid_min :

    0

    valid_max :

    9

    flag_values :

    [0 1 2 3 4 5 6 7 8 9]

    flag_meanings :

    no_qc_performed good_data probably_good_data bad_data_that_are_potentially_correctable bad_data value_changed value_below_detection nominal_value interpolated_value missing_value

    array([[ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan],
           ...,
           [ 1., nan, nan, ..., nan, nan, nan],
           [ 9., nan, nan, ..., nan, nan, nan],
           [ 1., nan, nan, ..., nan, nan, nan]], dtype=float32)

  • VPED_DM
    (TIME, DEPTH)
    object
    ...

    long_name :

    Wave principal direction at spectral peak method of data processing

    conventions :

    Copernicus Marine In Situ reference table 1

    flag_values :

    R, A, D

    flag_meanings :

    real-time adjusted-in-real-time delayed-mode

    array([[nan, nan, nan, ..., nan, nan, nan],
           [b'R', nan, nan, ..., nan, nan, nan],
           [nan, nan, nan, ..., nan, nan, nan],
           ...,
           [b'R', nan, nan, ..., nan, nan, nan],
           [nan, nan, nan, ..., nan, nan, nan],
           [b'R', nan, nan, ..., nan, nan, nan]], dtype=object)

• Attributes: (46)

  platform_code :

  FINO1

  platform_name :

  data_mode :

  M

  title :

  NWS - NRT in situ Observations

  summary :

  Oceanographic data from North West Shelf

  naming_authority :

  Copernicus Marine In Situ

  id :

  NO_TS_MO_FINO1_202209

  wmo_platform_code :

  6201065

  ices_platform_code :

  source :

  mooring

  source_platform_category_code :

  48

  institution_edmo_code :

  3356

  institution :

  R and D centre Kiel University of Applied Sciences

  institution_references :

  www.fh-kiel-gmbh.de/en/

  site_code :

  comment :

  contact :

  cmems-service@bsh.de

  area :

  North Atlantic Ocean

  geospatial_lat_min :

  54.00000

  geospatial_lat_max :

  54.00000

  geospatial_lon_min :

  6.58333

  geospatial_lon_max :

  6.58333

  last_date_observation :

  2022-09-30T23:32:00Z

  last_latitude_observation :

  54.00000

  last_longitude_observation :

  6.58333

  geospatial_vertical_min :

  0.00000

  geospatial_vertical_max :

  25.00000

  time_coverage_start :

  2022-09-01T00:00:00Z

  time_coverage_end :

  2022-09-30T23:32:00Z

  cdm_data_type :

  timeSeries

  data_type :

  OceanSITES time-series data

  bottom_depth :

  format_version :

  1.4

  Conventions :

  CF-1.6 Copernicus-InSituTAC-FormatManual-1.42 Copernicus-InSituTAC-SRD-1.5 Copernicus-InSituTAC-ParametersList-3.2.1

  netcdf_version :

  netCDF-4 classic model

  references :

  http://marine.copernicus.eu http://www.marineinsitu.eu

  data_assembly_center :

  BSH

  update_interval :

  PT1H

  citation :

  These data were collected and made freely available by the Copernicus project and the programs that contribute to it

  distribution_statement :

  These data follow Copernicus standards; they are public and free of charge. User assumes all risk for use of data. User must display citation in any publication or product using data. User must contact PI prior to any commercial use of data.

  doi :

  pi_name :

  qc_manual :

  OceanSITES User's Manual v1.2

  date_update :

  2022-10-07T05:39:40Z

  history :

  2022-10-01T18:04:25Z : Creation; 2022-10-07T05:39:40Z, BSH North West Shelf PU: Monthly subset 202209 extracted from history file NO_TS_MO_FINO1.nc

  wmo_inst_type :

CMEMS in-situ data is provided in a standardised format, the OceanSITES time-series data format.

“The OceanSITES programme is the global network of open-ocean sustained time series sites, called ocean reference stations, being implemented by an international partnership of researchers and agencies. OceanSITES provides fixed-point time series of various physical, biogeochemical, ecosystem and atmospheric variables at locations around the globe, from the atmosphere and sea surface to the seafloor. The program’s objective is to build and maintain a multidisciplinary global network for a broad range of research and operational applications including climate, carbon, and ecosystem variability and forecasting and ocean state validation”

Find out which variables we are interested in to extract:

pd.DataFrame([{'name': fino[var].name, 'standard_name': fino[var].standard_name, 'units': fino[var].units} for var in fino.data_vars if hasattr(fino[var],"units")])

	name	standard_name	units
0	TEMP	sea_water_temperature	degrees_C
1	VHM0	sea_surface_wave_significant_height	m
2	VZMX	sea_surface_wave_maximum_height	m
3	VTM02	sea_surface_wave_mean_period_from_variance_spe...	s
4	VTPK	sea_surface_wave_period_at_variance_spectral_d...	s
5	VTZA	sea_surface_wave_mean_period	s
6	VPED	sea_surface_wave_from_direction_at_variance_sp...	degree

The data have a DEPTH dimension, even though variables are only measured at a single level and doesn’t vary in time although the format allows for it.

I.e. temperature (TEMP) is available at level 1 (0.5 m)

fino.DEPH.plot.line(x='TIME');

fino['TEMP'].plot.line("-^",x='TIME');

fino['VHM0'].plot.line("-^",x='TIME');

Wave data are only available at the surface.

fino[['VHM0','VTZA','VPED']].isel(DEPTH=0)

<xarray.Dataset>
Dimensions:  (TIME: 2879)
Coordinates:
  * TIME     (TIME) datetime64[ns] 2022-09-01 ... 2022-09-30T23:31:59.999999744
    DEPH     (TIME) float32 0.0 0.0 0.0 0.0 0.0 0.0 ... 0.0 0.0 0.0 0.0 0.0 0.0
Data variables:
    VHM0     (TIME) float64 nan 1.11 nan 1.09 nan ... 2.46 nan 2.41 nan 2.51
    VTZA     (TIME) float64 4.12 nan 4.18 nan 4.0 nan ... nan 5.2 nan 5.44 nan
    VPED     (TIME) float64 nan 2.8 nan 353.0 nan ... 192.7 nan 234.8 nan 244.7
Attributes: (12/46)
    platform_code:                  FINO1
    platform_name:                  
    data_mode:                      M
    title:                          NWS - NRT in situ Observations
    summary:                        Oceanographic data from North West Shelf
    naming_authority:               Copernicus Marine In Situ
    ...                             ...
    doi:                            
    pi_name:                        
    qc_manual:                      OceanSITES User's Manual v1.2
    date_update:                    2022-10-07T05:39:40Z
    history:                        2022-10-01T18:04:25Z : Creation; 2022-10-...
    wmo_inst_type:                  

xarray.Dataset

• Dimensions:
  • TIME: 2879
• Coordinates: (2)
  • TIME
    (TIME)
    datetime64[ns]
    2022-09-01 ... 2022-09-30T23:31:...

    long_name :

    Time

    standard_name :

    time

    valid_min :

    -90000.0

    valid_max :

    90000.0

    uncertainty :

    comment :

    axis :

    T

    ancillary_variables :

    TIME_QC

    array(['2022-09-01T00:00:00.000000000', '2022-09-01T00:02:00.000000000',
           '2022-09-01T00:30:00.000000000', ..., '2022-09-30T23:02:00.000000000',
           '2022-09-30T23:30:00.000000000', '2022-09-30T23:31:59.999999744'],
          dtype='datetime64[ns]')

  • DEPH
    (TIME)
    float32
    0.0 0.0 0.0 0.0 ... 0.0 0.0 0.0 0.0

    long_name :

    Depth

    standard_name :

    depth

    units :

    m

    positive :

    down

    valid_min :

    -12000.0

    valid_max :

    12000.0

    uncertainty :

    comment :

    axis :

    Z

    reference :

    sea_level

    data_mode :

    R

    ancillary_variables :

    DEPH_QC

    array([0., 0., 0., ..., 0., 0., 0.], dtype=float32)

• Data variables: (3)
  • VHM0
    (TIME)
    float64
    nan 1.11 nan 1.09 ... 2.41 nan 2.51

    standard_name :

    sea_surface_wave_significant_height

    units :

    m

    long_name :

    Spectral significant wave height (Hm0)

    valid_min :

    1

    valid_max :

    25000

    comment :

    uncertainty :

    accuracy :

    precision :

    resolution :

    cell_methods :

    type_of_analysis :

    spectral analysis

    sensor_depth :

    0.0

    sensor_mount :

    sensor_orientation :

    data_mode :

    M

    ancillary_variables :

    VHM0_QC VHM0_DM

    array([ nan, 1.11,  nan, ..., 2.41,  nan, 2.51])

  • VTZA
    (TIME)
    float64
    4.12 nan 4.18 nan ... nan 5.44 nan

    standard_name :

    sea_surface_wave_mean_period

    units :

    s

    long_name :

    Average zero crossing wave period (Tz)

    valid_min :

    2000

    valid_max :

    25000

    comment :

    uncertainty :

    accuracy :

    precision :

    resolution :

    cell_methods :

    type_of_analysis :

    zero crossing

    sensor_depth :

    0.0

    sensor_mount :

    sensor_orientation :

    data_mode :

    R

    ancillary_variables :

    VTZA_QC

    array([4.12,  nan, 4.18, ...,  nan, 5.44,  nan])

  • VPED
    (TIME)
    float64
    nan 2.8 nan ... 234.8 nan 244.7

    standard_name :

    sea_surface_wave_from_direction_at_variance_spectral_density_maximum

    units :

    degree

    long_name :

    Wave principal direction at spectral peak

    valid_min :

    0

    valid_max :

    360000

    comment :

    uncertainty :

    accuracy :

    precision :

    resolution :

    cell_methods :

    type_of_analysis :

    spectral analysis

    sensor_depth :

    0.0

    sensor_mount :

    sensor_orientation :

    data_mode :

    M

    ancillary_variables :

    VPED_QC VPED_DM

    array([       nan,   2.8     ,        nan, ..., 234.800011,        nan,
           244.700012])

• Attributes: (46)

  platform_code :

  FINO1

  platform_name :

  data_mode :

  M

  title :

  NWS - NRT in situ Observations

  summary :

  Oceanographic data from North West Shelf

  naming_authority :

  Copernicus Marine In Situ

  id :

  NO_TS_MO_FINO1_202209

  wmo_platform_code :

  6201065

  ices_platform_code :

  source :

  mooring

  source_platform_category_code :

  48

  institution_edmo_code :

  3356

  institution :

  R and D centre Kiel University of Applied Sciences

  institution_references :

  www.fh-kiel-gmbh.de/en/

  site_code :

  comment :

  contact :

  cmems-service@bsh.de

  area :

  North Atlantic Ocean

  geospatial_lat_min :

  54.00000

  geospatial_lat_max :

  54.00000

  geospatial_lon_min :

  6.58333

  geospatial_lon_max :

  6.58333

  last_date_observation :

  2022-09-30T23:32:00Z

  last_latitude_observation :

  54.00000

  last_longitude_observation :

  6.58333

  geospatial_vertical_min :

  0.00000

  geospatial_vertical_max :

  25.00000

  time_coverage_start :

  2022-09-01T00:00:00Z

  time_coverage_end :

  2022-09-30T23:32:00Z

  cdm_data_type :

  timeSeries

  data_type :

  OceanSITES time-series data

  bottom_depth :

  format_version :

  1.4

  Conventions :

  CF-1.6 Copernicus-InSituTAC-FormatManual-1.42 Copernicus-InSituTAC-SRD-1.5 Copernicus-InSituTAC-ParametersList-3.2.1

  netcdf_version :

  netCDF-4 classic model

  references :

  http://marine.copernicus.eu http://www.marineinsitu.eu

  data_assembly_center :

  BSH

  update_interval :

  PT1H

  citation :

  These data were collected and made freely available by the Copernicus project and the programs that contribute to it

  distribution_statement :

  These data follow Copernicus standards; they are public and free of charge. User assumes all risk for use of data. User must display citation in any publication or product using data. User must contact PI prior to any commercial use of data.

  doi :

  pi_name :

  qc_manual :

  OceanSITES User's Manual v1.2

  date_update :

  2022-10-07T05:39:40Z

  history :

  2022-10-01T18:04:25Z : Creation; 2022-10-07T05:39:40Z, BSH North West Shelf PU: Monthly subset 202209 extracted from history file NO_TS_MO_FINO1.nc

  wmo_inst_type :

df = fino[['VHM0','VTZA','VPED']].isel(DEPTH=0).to_dataframe()

The data are stored on the concurrent timesteps.

df[['VHM0','VTZA','VPED']].head()

	VHM0	VTZA	VPED
TIME
2022-09-01 00:00:00	NaN	4.12	NaN
2022-09-01 00:02:00	1.11	NaN	2.800000
2022-09-01 00:30:00	NaN	4.18	NaN
2022-09-01 00:32:00	1.09	NaN	353.000017
2022-09-01 01:00:00	NaN	4.00	NaN

df[['VHM0','VTZA']].plot(style='+')

<AxesSubplot: xlabel='TIME'>

Store the results in Dfs0 format.

pd.Series.to_dfs0?

Signature:
pd.Series.to_dfs0(
    self,
    filename,
    itemtype=None,
    unit=None,
    items=None,
    title=None,
    dtype=None,
)
Docstring: <no docstring>
File:      ~/mambaforge/lib/python3.10/site-packages/mikeio/dfs0.py
Type:      function

df['VHM0'].dropna().to_dfs0("FINO1_VHM0.dfs0", itemtype=mikeio.EUMType.Significant_wave_height)

Read the file again to check…

ds = mikeio.read("FINO1_VHM0.dfs0")
ds

<mikeio.Dataset>
dims: (time:1439)
time: 2022-09-01 00:02:00 - 2022-09-30 23:32:00 (1439 non-equidistant records)
items:
  0:  VHM0 <Significant wave height> (meter)