Make A Graph

Dataset Title:	COMPASS-NEATL Hindcast 2016-2020
Institution:	Marine Institute Ireland (Dataset ID: compass_neatl_hindcast_grid)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Data Access Form

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Graph Type:
X Axis:
Y Axis:
Color:

Dimensions

Start

Stop

time (UTC)

specify just 1 value →

latitude (degrees_north)

longitude (degrees_east)

Graph Settings
Color Bar:	Continuity:	Scale:
Minimum:	Maximum:	N Sections:
Draw land mask:
Y Axis Minimum:	Maximum:

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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:

Web page authors can embed a graph of the latest data in a web page using HTML <img> tags.
Anyone can use ERDDAPs Slide Sorter to build a personal web page that displays graphs with the latest data (or other images or HTML content), each in its own, draggable slide.

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    Int32 _ChunkSizes 1;
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.4516496e+9, 1.609416e+9;
    String axis "T";
    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 {
    Int32 _ChunkSizes 601;
    String _CoordinateAxisType "Lat";
    Float32 actual_range 53.0, 59.0;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    Int32 _ChunkSizes 821;
    String _CoordinateAxisType "Lon";
    Float32 actual_range -11.0, -2.8;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  sea_surface_temperature {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String coordinates "time latitude longitude";
    String ioos_category "Temperature";
    String long_name "sea surface temperature";
    String standard_name "sea_water_potential_temperature";
    String time "instantaneous value at noon";
    String units "degree_C";
  }
  sea_temperature_at_10_meters_depth {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String coordinates "time latitude longitude";
    String ioos_category "Temperature";
    String long_name "sea temperature at 10 meters depth";
    String standard_name "sea_water_potential_temperature";
    String time "instantaneous value at noon";
    String units "degree_C";
  }
  sea_temperature_at_30_meters_depth {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String coordinates "time latitude longitude";
    String ioos_category "Temperature";
    String long_name "sea temperature at 30 meters depth";
    String standard_name "sea_water_potential_temperature";
    String time "instantaneous value at noon";
    String units "degree_C";
  }
  sea_bottom_temperature {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String coordinates "time latitude longitude";
    String ioos_category "Temperature";
    String long_name "sea bottom temperature";
    String standard_name "sea_water_potential_temperature";
    String time "instantaneous value at noon";
    String units "degree_C";
  }
  sea_surface_salinity {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String comment "Absolute Salinity computed using the Gibbs-SeaWater toolbox (TEOS-10) v3.0.11: McDougall, T.J. and P.M. Barker, 2011: Getting started with TEOS-10 and the Gibbs Seawater (GSW) Oceanographic Toolbox, 28pp., SCOR/IAPSO WG127, ISBN 978-0-646-55621-5.";
    String coordinates "time latitude longitude";
    String ioos_category "Salinity";
    String long_name "sea surface salinity";
    String standard_name "sea_water_absolute_salinity";
    String time "instantaneous value at noon";
    String units "g kg-1";
  }
  sea_salinity_at_10_meters_depth {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String comment "Absolute Salinity computed using the Gibbs-SeaWater toolbox (TEOS-10) v3.0.11: McDougall, T.J. and P.M. Barker, 2011: Getting started with TEOS-10 and the Gibbs Seawater (GSW) Oceanographic Toolbox, 28pp., SCOR/IAPSO WG127, ISBN 978-0-646-55621-5.";
    String coordinates "time latitude longitude";
    String ioos_category "Salinity";
    String long_name "sea salinity at 10 meters depth";
    String standard_name "sea_water_absolute_salinity";
    String time "instantaneous value at noon";
    String units "g kg-1";
  }
  sea_salinity_at_30_meters_depth {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String comment "Absolute Salinity computed using the Gibbs-SeaWater toolbox (TEOS-10) v3.0.11: McDougall, T.J. and P.M. Barker, 2011: Getting started with TEOS-10 and the Gibbs Seawater (GSW) Oceanographic Toolbox, 28pp., SCOR/IAPSO WG127, ISBN 978-0-646-55621-5.";
    String coordinates "time latitude longitude";
    String ioos_category "Salinity";
    String long_name "sea salinity at 30 meters depth";
    String standard_name "sea_water_absolute_salinity";
    String time "instantaneous value at noon";
    String units "g kg-1";
  }
  sea_bottom_salinity {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String comment "Absolute Salinity computed using the Gibbs-SeaWater toolbox (TEOS-10) v3.0.11: McDougall, T.J. and P.M. Barker, 2011: Getting started with TEOS-10 and the Gibbs Seawater (GSW) Oceanographic Toolbox, 28pp., SCOR/IAPSO WG127, ISBN 978-0-646-55621-5.";
    String coordinates "time latitude longitude";
    String ioos_category "Salinity";
    String long_name "sea bottom salinity";
    String standard_name "sea_water_absolute_salinity";
    String time "instantaneous value at noon";
    String units "g kg-1";
  }
  mixed_layer_depth {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String comment "depth at which a potential density difference of 0.03 kg m-3 with respect to a near-surface reference value is observed; near-surface reference value is set at 10 meters depth";
    String coordinates "time latitude longitude";
    String ioos_category "Physical Oceanography";
    String long_name "mixed layer depth";
    String standard_name "ocean_mixed_layer_thickness";
    String time "instantaneous value at noon";
    String units "m";
  }
  sea_surface_u_velocity {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    String coordinates "time latitude longitude";
    String ioos_category "Currents";
    String long_name "u-component of current velocity at the surface";
    Float32 missing_value -9999.0;
    String standard_name "eastward_surface_water_velocity";
    String time "25-hour average, from midnight (12 a.m.) to midnight (12 a.m.)";
    String units "m s-1";
  }
  sea_surface_v_velocity {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    String coordinates "time latitude longitude";
    String ioos_category "Currents";
    String long_name "v-component of current velocity at the surface";
    Float32 missing_value -9999.0;
    String standard_name "northward_surface_water_velocity";
    String time "25-hour average, from midnight (12 a.m.) to midnight (12 a.m.)";
    String units "m s-1";
  }
  sea_u_velocity_at_10_meters_depth {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    String coordinates "time latitude longitude";
    String ioos_category "Currents";
    String long_name "u-component of current velocity at 10 meters depth";
    Float32 missing_value -9999.0;
    String standard_name "eastward_10_meters_depth_water_velocity";
    String time "25-hour average, from midnight (12 a.m.) to midnight (12 a.m.)";
    String units "m s-1";
  }
  sea_v_velocity_at_10_meters_depth {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    String coordinates "latitude longitude";
    String ioos_category "Currents";
    String long_name "v-component of current velocity at 10 meters depth";
    Float32 missing_value -9999.0;
    String standard_name "northward_10_meters_depth_water_velocity";
    String time "25-hour average, from midnight (12 a.m.) to midnight (12 a.m.)";
    String units "m s-1";
  }
  sea_u_velocity_at_30_meters_depth {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    String coordinates "time latitude longitude";
    String ioos_category "Currents";
    String long_name "u-component of current velocity at 30 meters depth";
    Float32 missing_value -9999.0;
    String standard_name "eastward_30_meters_depth_water_velocity";
    String time "25-hour average, from midnight (12 a.m.) to midnight (12 a.m.)";
    String units "m s-1";
  }
  sea_v_velocity_at_30_meters_depth {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    String coordinates "time latitude longitude";
    String ioos_category "Currents";
    String long_name "v-component of current velocity at 30 meters depth";
    Float32 missing_value -9999.0;
    String standard_name "northward_30_meters_depth_water_velocity";
    String time "25-hour average, from midnight (12 a.m.) to midnight (12 a.m.)";
    String units "m s-1";
  }
  sea_bottom_u_velocity {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    String coordinates "time latitude longitude";
    String ioos_category "Currents";
    String long_name "u-component of current velocity at the bottom";
    Float32 missing_value -9999.0;
    String standard_name "eastward_bottom_water_velocity";
    String time "25-hour average, from midnight (12 a.m.) to midnight (12 a.m.)";
    String units "m s-1";
  }
  sea_bottom_v_velocity {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    String coordinates "time latitude longitude";
    String ioos_category "Currents";
    String long_name "v-component of current velocity at the bottom";
    Float32 missing_value -9999.0;
    String standard_name "northward_bottom_water_velocity";
    String time "25-hour average, from midnight (12 a.m.) to midnight (12 a.m.)";
    String units "m s-1";
  }
  vertically_integrated_u_velocity {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    String coordinates "time latitude longitude";
    String ioos_category "Currents";
    String long_name "u-component of current velocity vertically integrated along the water column";
    Float32 missing_value -9999.0;
    String standard_name "barotropic_eastward_water_velocity";
    String time "25-hour average, from midnight (12 a.m.) to midnight (12 a.m.)";
    String units "m s-1";
  }
  vertically_integrated_v_velocity {
    Int32 _ChunkSizes 1, 601, 821;
    Float32 _FillValue -999.9;
    String coordinates "time latitude longitude";
    String ioos_category "Currents";
    String long_name "v-component of current velocity vertically integrated along the water column";
    Float32 missing_value -9999.0;
    String standard_name "barotropic_northward_water_velocity";
    String time "25-hour average, from midnight (12 a.m.) to midnight (12 a.m.)";
    String units "m s-1";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String CoordinateProjection "latitude_longitude";
    String CoordinateSystem "GeoReferenced";
    String creator_name "Marine Institute Ireland";
    String creator_url "http://thredds.marine.ie/thredds/dodsC/COMPASS_NEATL/AGGREGATE.html";
    Float64 eastern_boundary -2.8;
    Float64 Easternmost_Easting -2.8;
    Float64 geospatial_lat_max 59.0;
    Float64 geospatial_lat_min 53.0;
    Float64 geospatial_lat_resolution 0.01;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -2.8;
    Float64 geospatial_lon_min -11.0;
    Float64 geospatial_lon_resolution 0.009999999999999998;
    String geospatial_lon_units "degrees_east";
    Float64 grid_resolution_5bdeg_5d 0.01;
    String history 
"Created on the 09-Jan-2021 14:40
2024-04-23T07:46:51Z http://thredds.marine.ie/thredds/dodsC/COMPASS_NEATL/AGGREGATE
2024-04-23T07:46:51Z https://erddap.marine.ie/griddap/compass_neatl_hindcast_grid.das";
    String infoUrl "https://data.marine.ie/geonetwork/srv/eng/catalog.search#/metadata/ie.marine.data:dataset.4269";
    String institution "Marine Institute Ireland";
    String keywords "30-dec-2020, absolute, along, barotropic, barotropic_eastward_water_velocity, barotropic_northward_water_velocity, bottom, circulation, column, compass, compass-neatl, component, current, currents, data, date, depth, earth, Earth Science > Oceans > Ocean Circulation > Ocean Mixed Layer, Earth Science > Oceans > Ocean Temperature > Potential Temperature, eastward, eastward_10_meters_depth_water_velocity, eastward_30_meters_depth_water_velocity, eastward_bottom_water_velocity, eastward_surface_water_velocity, file, hindcast, institute, integrated, ireland, latitude, layer, longitude, marine, meters, mixed, mixed layer, mixed_layer_depth, neatl, northward, northward_10_meters_depth_water_velocity, northward_30_meters_depth_water_velocity, northward_bottom_water_velocity, northward_surface_water_velocity, ocean, ocean_mixed_layer_thickness, oceanography, oceans, physical, physical oceanography, potential, salinity, science, sea, sea_bottom_salinity, sea_bottom_temperature, sea_bottom_u_velocity, sea_bottom_v_velocity, sea_salinity_at_10_meters_depth, sea_salinity_at_30_meters_depth, sea_surface_salinity, sea_surface_temperature, sea_surface_u_velocity, sea_surface_v_velocity, sea_temperature_at_10_meters_depth, sea_temperature_at_30_meters_depth, sea_u_velocity_at_10_meters_depth, sea_u_velocity_at_30_meters_depth, sea_v_velocity_at_10_meters_depth, sea_v_velocity_at_30_meters_depth, sea_water_absolute_salinity, sea_water_potential_temperature, seawater, surface, temperature, thickness, time, u-component, v-component, velocity, vertically, vertically_integrated_u_velocity, vertically_integrated_v_velocity, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Creative Commons Attribution 4.0 (https://creativecommons.org/licenses/by/4.0/)";
    Float64 northern_boundary 59.0;
    Float64 Northernmost_Northing 59.0;
    String source "Northeast Atlantic (NEATL)";
    String sourceUrl "http://thredds.marine.ie/thredds/dodsC/COMPASS_NEATL/AGGREGATE";
    Float64 southern_boundary 53.0;
    Float64 Southernmost_Northing 53.0;
    String standard_name_vocabulary "CF Standard Name Table v55";
    String summary "COMPASS-NEATL Hindcast Data from 2016 to 2020";
    String time_coverage_end "2020-12-31T12:00:00Z";
    String time_coverage_start "2016-01-01T12:00:00Z";
    String title "COMPASS-NEATL Hindcast 2016-2020";
    Float64 western_boundary -11.0;
    Float64 Westernmost_Easting -11.0;
  }
}

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://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.