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Data Access Form

Dataset Title:	Model Monthly Means
Institution:	Irish Marine Institute (Dataset ID: IMI_Model_Stats)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Make a graph

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Dimensions	Size	Spacing
time (time of mid month, UTC)	63	30 days 22h 27m 6s (uneven)

latitude (degrees_north)	440	0.025 (even)

longitude (degrees_east)	640	0.025 (even)

Grid Variables (which always also download all of the dimension variables)
sea_surface_temperature (C)
sea_bottom_temperature (C)
sea_surface_salinity (PSU)
sea_bottom_salinity (Monthly mean sea bottom salinity, PSU)
sea_surface_x_velocity (m/s)
sea_surface_y_velocity (m/s)
mixed_layer_depth (Monthly mean mixed layer depth, m)
significant_wave_height (m)
mean_wave_direction (Monthly mean mean wave direction, degrees)
mean_wave_period (Monthly mean absolute zero-crossing period, s)

File type: more info
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(Please be patient. It may take a while to get the data.)

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.3397184e+9, 1.5054336e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "time of mid month";
    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 48.0125, 58.9875;
    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 -17.9875, -2.0125;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  sea_surface_temperature {
    String colorBarMaximum "20.0";
    String colorBarMinimum "0";
    String coordinates "time latitude longitude";
    Float64 FillValue_ -9999.0;
    String ioos_category "Temperature";
    String long_name "Monthly mean sea surface temperature";
    Float64 missing_value -9999.0;
    String standard_name "sea_surface_temperature";
    String time "time";
    String units "C";
  }
  sea_bottom_temperature {
    String colorBarMaximum "15.0";
    String colorBarMinimum "0";
    String coordinates "time latitude longitude";
    Float64 FillValue_ -9999.0;
    String ioos_category "Temperature";
    String long_name "Monthly mean sea bottom temperature";
    Float64 missing_value -9999.0;
    String standard_name "sea_bottom_temperature";
    String time "time";
    String units "C";
  }
  sea_surface_salinity {
    String colorBarMaximum "36.0";
    String colorBarMinimum "20";
    String coordinates "time latitude longitude";
    Float64 FillValue_ -9999.0;
    String ioos_category "Salinity";
    String long_name "Monthly mean sea surface salinity";
    Float64 missing_value -9999.0;
    String standard_name "sea_surface_salinity";
    String time "time";
    String units "PSU";
  }
  sea_bottom_salinity {
    String colorBarMaximum "36.0";
    String colorBarMinimum "30";
    String coordinates "time latitude longitude";
    Float64 FillValue_ -9999.0;
    String ioos_category "Salinity";
    String long_name "Monthly mean sea bottom salinity";
    Float64 missing_value -9999.0;
    String standard_name "sea_bottom_salinity";
    String time "time";
    String units "PSU";
  }
  sea_surface_x_velocity {
    String colorBarMaximum "1";
    String colorBarMinimum "-1";
    String coordinates "time latitude longitude";
    Float64 FillValue_ -9999.0;
    String ioos_category "Currents";
    String long_name "Monthly mean surface U velocity component";
    Float64 missing_value -9999.0;
    String standard_name "sea_surface_x_velocity";
    String time "time";
    String units "m/s";
  }
  sea_surface_y_velocity {
    String colorBarMaximum "1";
    String colorBarMinimum "-1";
    String coordinates "time latitude longitude";
    Float64 FillValue_ -9999.0;
    String ioos_category "Currents";
    String long_name "Monthly mean surface V velocity component";
    Float64 missing_value -9999.0;
    String standard_name "sea_surface_y_velocity";
    String time "time";
    String units "m/s";
  }
  mixed_layer_depth {
    String colorBarMaximum "100";
    String colorBarMinimum "0";
    String coordinates "time latitude longitude";
    Float64 FillValue_ -9999.0;
    String ioos_category "Other";
    String long_name "Monthly mean mixed layer depth";
    Float64 missing_value -9999.0;
    String standard_name "mixed_layer_depth";
    String time "time";
    String units "m";
  }
  significant_wave_height {
    String colorBarMaximum "4";
    String colorBarMinimum "0";
    String coordinates "time latitude longitude";
    Float64 FillValue_ -9999.0;
    String ioos_category "Surface Waves";
    String long_name "Monthly mean significant wave height";
    Float64 missing_value -9999.0;
    String standard_name "significant_wave_height";
    String time "time";
    String units "m";
  }
  mean_wave_direction {
    String colorBarMaximum "360";
    String colorBarMinimum "0";
    String coordinates "time latitude longitude";
    Float64 FillValue_ -9999.0;
    String ioos_category "Surface Waves";
    String long_name "Monthly mean mean wave direction";
    Float64 missing_value -9999.0;
    String standard_name "mean_wave_direction";
    String time "time";
    String units "degrees";
  }
  mean_wave_period {
    String colorBarMaximum "15";
    String colorBarMinimum "0";
    String coordinates "time latitude longitude";
    Float64 FillValue_ -9999.0;
    String ioos_category "Surface Waves";
    String long_name "Monthly mean absolute zero-crossing period";
    Float64 missing_value -9999.0;
    String standard_name "mean_wave_period";
    String time "time";
    String units "s";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    Float64 Easternmost_Easting -2.0125;
    Float64 geospatial_lat_max 58.9875;
    Float64 geospatial_lat_min 48.0125;
    Float64 geospatial_lat_resolution 0.024999999999999988;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -2.0125;
    Float64 geospatial_lon_min -17.9875;
    Float64 geospatial_lon_resolution 0.025;
    String geospatial_lon_units "degrees_east";
    String history 
"2017-10-30T00:17:43Z http://milas.marine.ie/thredds/dodsC/IMI_MODEL_STATISTICS/MONTHLY_STATISTICS
2017-10-30T00:17:43Z https://erddap.marine.ie/erddap/griddap/IMI_Model_Stats.das";
    String infoUrl "http://milas.marine.ie/thredds/";
    String institution "Irish Marine Institute";
    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.";
    Float64 Northernmost_Northing 58.9875;
    String sourceUrl "http://milas.marine.ie/thredds/dodsC/IMI_MODEL_STATISTICS/MONTHLY_STATISTICS";
    Float64 Southernmost_Northing 48.0125;
    String summary "Irish Marine Institute modelled monthly means for Irish waters";
    String time_coverage_end "2017-09-15T00:00:00Z";
    String time_coverage_start "2012-06-15T00:00:00Z";
    String title "Model Monthly Means";
    Float64 Westernmost_Easting -17.9875;
  }
}

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.

(easy) You can get data by using the dataset's Data Access Form. It makes the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by
hand or with a computer program or script.

griddap request URLs must be in the form
https://erddap.marine.ie/erddap/griddap/datasetID.fileType{?query}
For example,
https://erddap.marine.ie/erddap/griddap/jplMURSST.htmlTable?analysed_sst[(2015-06-09T09:00:00Z)][(-89.9945):1000:(89.9945)][(-179.995):1000:(179.995)]
Thus, the query is often a variable name (e.g., analysed_sst),
followed by a set of [] for each of the variable's dimensions
(for example, [time][latitude][longitude]),
with your desired (start):stride:(stop) values within each [].

For details, see the griddap Documentation.

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