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Dataset Title:  AVISO Model Output, obs4MIPs NASA-JPL, Global, 1 Degree, 1992-2010, Monthly,
Lon+/-180
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Institution:  Centre National d'Etudes Spatiales   (Dataset ID: jplAvisoSshMon_LonPM180)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Data Access Form
 
Graph Type:  ?
X Axis:  ?
Y Axis:  ?
Color:  ?
 
Dimensions ?    Start ?    Stop ?
time (UTC) ?     specify just 1 value →
    << -
< <
latitude (degrees_north) ?
    +
    -
< slider >
longitude (degrees_east) ?
    +
    -
< slider >
 
Graph Settings
Color Bar:   Continuity:   Scale: 
   Minimum:   Maximum:   N Sections: 
Draw land mask: 
Y Axis Minimum:   Maximum:   Ascending: 
 
(Please be patient. It may take a while to get the data.)
 
Optional:
Then set the File Type: (File Type information)
and
or view the URL:
(Documentation / Bypass this form ? )
    Click on the map to specify a new center point. ?
Zoom:
[The graph you specified. Please be patient.]

 

Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 7.192368e+8, 1.2925008e+9;
    String axis "T";
    String calendar "standard";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range -89.5, 89.5;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -179.5, 179.5;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  sshag {
    Float32 _FillValue 1.0e+20;
    String associated_files "baseURL: http://cmip-pcmdi.llnl.gov/CMIP5/dataLocation gridspecFile: gridspec_ocean_fx_Obs-AVISO_obs_r0i0p0.nc areacello: areacello_fx_Obs-AVISO_obs_r0i0p0.nc";
    String cell_measures "area: areacello";
    String cell_methods "time: mean";
    Float64 colorBarMaximum 2.0;
    Float64 colorBarMinimum -2.0;
    String history "2011-02-11, 12:02:38, AVISO, Aviso2Cmor 2009-01-01 2009-12-31 2011-08-24T20:50:25Z altered by CMOR: Converted units from 'cm' to 'm'. 2011-08-24T20:50:25Z altered by CMOR: Converted type from 'd' to 'f'.";
    String ioos_category "Sea Level";
    String long_name "Sea Surface Height Above Geoid";
    Float32 missing_value 1.0e+20;
    String original_name "maps_of_absolute_dynamic_topography";
    String original_units "cm";
    String standard_name "sea_surface_height_above_geoid";
    String units "m";
  }
  nObs {
    Float32 _FillValue 1.0e+20;
    String associated_files "baseURL: http://cmip-pcmdi.llnl.gov/CMIP5/dataLocation gridspecFile: gridspec_ocean_fx_Obs-AVISO_obs_r0i0p0.nc areacello: areacello_fx_Obs-AVISO_obs_r0i0p0.nc";
    String cell_measures "area: areacello";
    String cell_methods "time: mean";
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum 0.0;
    String history "2011-07-11, 12:02:39, AVISO, Aviso2Cmor 2009-01-01 2009-12-31 2011-08-24T20:50:53Z altered by CMOR: Converted type from 'd' to 'f'.";
    String ioos_category "Statistics";
    String long_name "Number of Observations";
    Float32 missing_value 1.0e+20;
    String original_name "nb_pts_absolute_dynamic_topography";
    String standard_name "sea_surface_height_above_geoid_number_of_observations";
    String units "1";
  }
  stdErr {
    Float32 _FillValue 1.0e+20;
    String associated_files "baseURL: http://cmip-pcmdi.llnl.gov/CMIP5/dataLocation gridspecFile: gridspec_ocean_fx_Obs-AVISO_obs_r0i0p0.nc areacello: areacello_fx_Obs-AVISO_obs_r0i0p0.nc";
    String cell_measures "area: areacello";
    String cell_methods "time: mean";
    Float64 colorBarMaximum 0.01;
    Float64 colorBarMinimum 0.0;
    String history "2011-07-11, 12:02:39, AVISO, Aviso2Cmor 2009-01-01 2009-12-31 2011-08-24T20:50:36Z altered by CMOR: Converted units from 'cm' to 'm'. 2011-08-24T20:50:36Z altered by CMOR: Converted type from 'd' to 'f'.";
    String ioos_category "Statistics";
    String long_name "Standard Error";
    Float32 missing_value 1.0e+20;
    String original_name "std_error_absolute_dynamic_topography";
    String original_units "cm";
    String standard_name "sea_surface_height_above_geoid_standard_error";
    String units "m";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String cmor_version "2.5.3";
    String comment "gridded sea surface heights above geoid";
    String contact "AVISO User Service, aviso@oceanobs.com";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creation_date "2011-08-24T20:50:25Z";
    String creator_email "aviso@oceanobs.com";
    String creator_name "AVISO User Service";
    String creator_type "institution";
    String creator_url "http://www.cls.fr/html/oceano/welcome_fr.html";
    String data_structure "grid";
    Float64 Easternmost_Easting 179.5;
    String experiment_id "obs";
    String frequency "mon";
    Float64 geospatial_lat_max 89.5;
    Float64 geospatial_lat_min -89.5;
    Float64 geospatial_lat_resolution 1.0;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 179.5;
    Float64 geospatial_lon_min -179.5;
    Float64 geospatial_lon_resolution 1.0;
    String geospatial_lon_units "degrees_east";
    String history 
"2011-04-13, 16:44:26, AVISO, Aviso2Cmor 2009-01-01 2009-12-31 2011-08-24T20:50:25Z CMOR rewrote data to comply with CF standards and obs4MIPs requirements.
2018-09-22T05:55:41Z https://thredds.jpl.nasa.gov/thredds/dodsC/ncml_aggregation/SeaSurfaceTopography/aviso/dynamic_topo_1deg_1mo/zos_AVISO_L4_199210-201012.nc
2018-09-22T05:55:41Z http://coastwatch.pfeg.noaa.gov/griddap/jplAvisoSshMon_LonPM180.das";
    String infoUrl "https://podaac.jpl.nasa.gov/dataset/AVISO_L4_DYN_TOPO_1DEG_1MO";
    String institute_id "CNES";
    String institution "Centre National d'Etudes Spatiales";
    String instrument "altimeter";
    String keywords "above, absolute dynamic topography, aviso, centre, dynamic topography, earth, Earth Science > Oceans > Sea Surface Topography > Sea Surface Height, Earth Science > Solid Earth > Geodetics/Gravity > Geoid Properties, etudes, geodetics, geoid, gravity, height, jpl, level, model, nasa, nasa-jpl, national, obs-aviso, obs4mips, observation, observations, oceans, output, prepared, properties, sea, sea level, sea_surface_height_above_geoid, solid, spatiales, surface, topography";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String mip_specs "CMIP5";
    String model_id "Obs-AVISO";
    String modeling_realm "ocean";
    Float64 Northernmost_Northing 89.5;
    String obs_project "merged data";
    String processing_level "L4";
    String processing_version "n/a";
    String product "observations";
    String project_id "obs4MIPs";
    String publisher_email "podaac@podaac.jpl.nasa.gov";
    String publisher_name "JPL";
    String realm "ocean";
    String references "https://www.aviso.altimetry.fr/en/data/product-information/updates-and-reprocessing/ssaltoduacs-delayed-time-reprocessing.html";
    String source "SSALTO/DUACS";
    String source_id "AVISO";
    String source_type "satellite_retrieval";
    String sourceUrl "https://thredds.jpl.nasa.gov/thredds/dodsC/ncml_aggregation/SeaSurfaceTopography/aviso/dynamic_topo_1deg_1mo/zos_AVISO_L4_199210-201012.nc";
    Float64 Southernmost_Northing -89.5;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary 
"This dataset contains absolute dynamic topography (similar to sea level but with respect to the geoid) binned and averaged monthly on 1 degree grids. The coverage is from October 1992 to December 2010. These data were provided by AVISO (French space agency data provider) to support the CMIP5 (Coupled Model Intercomparison Project Phase 5) under the World Climate Research Program (WCRP) and was first made available via the JPL Earth System Grid. The dynamic topography are derived from sea surface height measured by several satellites including Envisat, TOPEX/Poseidon, Jason-1 and OSTM/Jason-2, and referenced to the geoid. Along with this dataset, two additional ancillary data files are included in the same directory which contain the number of observations and standard error co-located on the same 1 degree grids. For more information, see
https://podaac.jpl.nasa.gov/dataset/AVISO_L4_DYN_TOPO_1DEG_1MO";
    String table_id "Table Omon_obs (31 January 2011) 3852a2b3aff8bddd40fa764d07bb2bdb";
    String time_coverage_end "2010-12-16T12:00:00Z";
    String time_coverage_start "1992-10-16T12:00:00Z";
    String title "AVISO Model Output, obs4MIPs NASA-JPL, Global, 1 Degree, 1992-2010, Monthly, Lon+/-180";
    String tracking_id "5a28bcf2-f863-4a32-9340-da8ea0d3df61";
    Float64 Westernmost_Easting -179.5;
  }
}

 

Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request a data subset, graph, or map from a gridded dataset (for example, sea surface temperature data from a satellite), via a specially formed URL. griddap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its projection constraints (external link).

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

griddap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/griddap/jplMURSST41.htmlTable?analysed_sst[(2002-06-01T09:00:00Z)][(-89.99):1000:(89.99)][(-179.99):1000:(180.0)]
Thus, the query is often a data variable name (e.g., analysed_sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][latitude][longitude]).

For details, see the griddap Documentation.


 
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