AVISO

  1. main
  2. obs
  3. gridded
  4. ocn
  5. ssh
  6. AVISO

Load in Python

from intake import open_catalog

cat = open_catalog("https://raw.githubusercontent.com/kpegion/COLA-DATASETS-CATALOG/gh-pages/intake-catalogs/aviso.yaml")
ds=cat['netcdf'].to_dask()
ds

Metadata

title DT merged all satellites Global Ocean Gridded SSALTO/DUACS Sea Surface Height L4 product and derived variables
location /project/airsea/AVISO
tags gridded,obs,ocn,ssh,global,monthly
catalog_dir https://raw.githubusercontent.com/kpegion/COLA-DATASETS-CATALOG/gh-pages/intake-catalogs/aviso.yaml
updated on

Dataset Contents

Show/Hide data repr Show/Hide attributes
xarray.Dataset
    • latitude: 121
    • longitude: 1440
    • time: 8400
    • longitude
      (longitude)
      float32
      0.125 0.375 ... 359.625 359.875
      axis :
      X
      bounds :
      lon_bnds
      long_name :
      Longitude
      standard_name :
      longitude
      units :
      degrees_east
      valid_max :
      359.875
      valid_min :
      0.125
      _CoordinateAxisType :
      Lon
      array([1.25000e-01, 3.75000e-01, 6.25000e-01, ..., 3.59375e+02, 3.59625e+02,
       3.59875e+02], dtype=float32)
    • latitude
      (latitude)
      float32
      -14.875 -14.625 ... 14.875 15.125
      axis :
      Y
      bounds :
      lat_bnds
      long_name :
      Latitude
      standard_name :
      latitude
      units :
      degrees_north
      valid_max :
      89.875
      valid_min :
      -89.875
      _CoordinateAxisType :
      Lat
      array([-14.875, -14.625, -14.375, -14.125, -13.875, -13.625, -13.375, -13.125,
       -12.875, -12.625, -12.375, -12.125, -11.875, -11.625, -11.375, -11.125,
       -10.875, -10.625, -10.375, -10.125,  -9.875,  -9.625,  -9.375,  -9.125,
        -8.875,  -8.625,  -8.375,  -8.125,  -7.875,  -7.625,  -7.375,  -7.125,
        -6.875,  -6.625,  -6.375,  -6.125,  -5.875,  -5.625,  -5.375,  -5.125,
        -4.875,  -4.625,  -4.375,  -4.125,  -3.875,  -3.625,  -3.375,  -3.125,
        -2.875,  -2.625,  -2.375,  -2.125,  -1.875,  -1.625,  -1.375,  -1.125,
        -0.875,  -0.625,  -0.375,  -0.125,   0.125,   0.375,   0.625,   0.875,
         1.125,   1.375,   1.625,   1.875,   2.125,   2.375,   2.625,   2.875,
         3.125,   3.375,   3.625,   3.875,   4.125,   4.375,   4.625,   4.875,
         5.125,   5.375,   5.625,   5.875,   6.125,   6.375,   6.625,   6.875,
         7.125,   7.375,   7.625,   7.875,   8.125,   8.375,   8.625,   8.875,
         9.125,   9.375,   9.625,   9.875,  10.125,  10.375,  10.625,  10.875,
        11.125,  11.375,  11.625,  11.875,  12.125,  12.375,  12.625,  12.875,
        13.125,  13.375,  13.625,  13.875,  14.125,  14.375,  14.625,  14.875,
        15.125], dtype=float32)
    • time
      (time)
      datetime64[ns]
      1993-01-01 ... 2015-12-31
      axis :
      T
      long_name :
      Time
      standard_name :
      time
      _CoordinateAxisType :
      Time
      array(['1993-01-01T00:00:00.000000000', '1993-01-02T00:00:00.000000000',
       '1993-01-03T00:00:00.000000000', ..., '2015-12-29T00:00:00.000000000',
       '2015-12-30T00:00:00.000000000', '2015-12-31T00:00:00.000000000'],
      dtype='datetime64[ns]')
    • sla
      (time, latitude, longitude)
      float64
      dask.array<chunksize=(365, 121, 1440), meta=np.ndarray>
      grid_mapping :
      crs
      long_name :
      Sea level anomaly
      standard_name :
      sea_surface_height_above_sea_level
      units :
      m
      comment :
      The sea level anomaly is the sea surface height above mean sea surface; it is referenced to the [1993, 2012] period; see the product user manual for details
      

      


      
  
    
        Array  Chunk 
      
        
  
    
       Bytes  11.71 GB   510.17 MB 
      
    
       Shape  (8400, 121, 1440)   (366, 121, 1440) 
      
    
       Count  69 Tasks  23 Chunks 
      
    
       Type  float64  numpy.ndarray 
      
        

      
      		



  
  
  

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  

  
  

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  

  
  
  

  
  

  
  
  

  
  
  

  
  

  
  1440
  121
  8400
    • adt
      (time, latitude, longitude)
      float64
      dask.array<chunksize=(365, 121, 1440), meta=np.ndarray>
      grid_mapping :
      crs
      long_name :
      Absolute dynamic topography
      standard_name :
      sea_surface_height_above_geoid
      units :
      m
      comment :
      The absolute dynamic topography is the sea surface height above geoid; the adt is obtained as follows: adt=sla+mdt where mdt is the mean dynamic topography; see the product user manual for details
      

      


      
  
    
        Array  Chunk 
      
        
  
    
       Bytes  11.71 GB   510.17 MB 
      
    
       Shape  (8400, 121, 1440)   (366, 121, 1440) 
      
    
       Count  69 Tasks  23 Chunks 
      
    
       Type  float64  numpy.ndarray 
      
        

      
      		



  
  
  

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  

  
  

  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  

  
  
  

  
  

  
  
  

  
  
  

  
  

  
  1440
  121
  8400
  • Conventions :
    CF-1.6
    Metadata_Conventions :
    Unidata Dataset Discovery v1.0
    cdm_data_type :
    Grid
    comment :
    Sea Surface Height measured by Altimetry and derived variables
    contact :
    servicedesk.cmems@mercator-ocean.eu
    creator_email :
    servicedesk.cmems@mercator-ocean.eu
    creator_name :
    CMEMS - Sea Level Thematic Assembly Center
    creator_url :
    http://marine.copernicus.eu
    date_created :
    2017-03-10T02:50:44Z
    date_issued :
    2017-03-10T02:50:44Z
    date_modified :
    2017-03-10T02:50:44Z
    geospatial_lat_max :
    15.125
    geospatial_lat_min :
    -14.875
    geospatial_lat_resolution :
    0.25
    geospatial_lat_units :
    degrees_north
    geospatial_lon_max :
    359.875
    geospatial_lon_min :
    0.125
    geospatial_lon_resolution :
    0.25
    geospatial_lon_units :
    degrees_east
    geospatial_vertical_max :
    0.0
    geospatial_vertical_min :
    0.0
    geospatial_vertical_positive :
    down
    geospatial_vertical_resolution :
    point
    geospatial_vertical_units :
    m
    history :
    2017-03-10 02:50:45Z: Created by DUACS DT - 2016-07-18T12:03:09Z: Change of some attributes - 2017-01-06 12:12:12Z: New format for CMEMSv3
    institution :
    CLS, CNES
    keywords :
    Oceans > Ocean Topography > Sea Surface Height
    keywords_vocabulary :
    NetCDF COARDS Climate and Forecast Standard Names
    license :
    http://marine.copernicus.eu/web/27-service-commitments-and-licence.php
    platform :
    Altika geodetic phase, Cryosat-2, Jason-3, OSTM/Jason-2 interleaved
    processing_level :
    L4
    product_version :
    5.8
    project :
    COPERNICUS MARINE ENVIRONMENT MONITORING SERVICE (CMEMS)
    references :
    http://marine.copernicus.eu
    source :
    Altimetry measurements
    ssalto_duacs_comment :
    The reference mission used for the altimeter inter-calibration processing is Topex/Poseidon between 1993-01-01 and 2002-04-23, Jason-1 between 2002-04-24 and 2008-10-18, OSTM/Jason-2 between 2008-10-19 and 2016-06-25, Jason-3 since 2016-06-25.
    standard_name_vocabulary :
    NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table v37
    summary :
    SSALTO/DUACS Delayed-Time Level-4 sea surface height and derived variables measured by multi-satellite altimetry observations over Global Ocean.
    time_coverage_duration :
    P1D
    time_coverage_end :
    2016-09-24T00:00:00Z
    time_coverage_resolution :
    P1D
    time_coverage_start :
    2016-09-24T00:00:00Z
    title :
    DT merged all satellites Global Ocean Gridded SSALTO/DUACS Sea Surface Height L4 product and derived variables
    History :
    Translated to CF-1.0 Conventions by Netcdf-Java CDM (CFGridWriter2) Original Dataset = dataset-duacs-rep-global-merged-allsat-phy-l4-v3; Translation Date = 2017-04-21T00:59:12.382Z