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ERDDAP > griddap > Make A Graph ?

Dataset Title:  AmSeas Apr 05 2013 to Current, AmSeas Apr 05 2013 to Current, Best Time
Series [time][depth][lat][lon], 0.03333°
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Institution:  Naval Oceanographic Office   (Dataset ID: noaa_ncddc_3d21_0085_7b93)
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 →
    << -
< <
depth (m) ?     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 1.36512e+9, 1.5274656e+9;
    String axis "T";
    String calendar "proleptic_gregorian";
    String ioos_category "Time";
    String long_name "Forecast time for ForecastModelRunCollection";
    Float64 missing_value NaN;
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  depth {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "down";
    Float64 actual_range 0.0, 5000.0;
    String axis "Z";
    String ioos_category "Location";
    String long_name "Depth";
    Int32 NAVO_code 5;
    String positive "down";
    String standard_name "depth";
    String units "m";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 5.0, 32.0972900390625;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    Int32 NAVO_code 1;
    String standard_name "latitude";
    String units "degrees_north";
    Float64 valid_range 5.0, 32.0972900390625;
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 262.0, 305.095703125;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    Int32 NAVO_code 2;
    String standard_name "longitude";
    String units "degrees_east";
    Float64 valid_range 262.0, 305.095703125;
  }
  water_u {
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String ioos_category "Currents";
    String long_name "Eastward Water Velocity";
    Int32 NAVO_code 17;
    String standard_name "eastward_sea_water_velocity";
    String units "meter/sec";
  }
  water_v {
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String ioos_category "Currents";
    String long_name "Northward Water Velocity";
    Int32 NAVO_code 18;
    String standard_name "northward_sea_water_velocity";
    String units "meter/sec";
  }
  water_temp {
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Temperature";
    String long_name "Water Temperature";
    Int32 NAVO_code 15;
    String standard_name "sea_water_temperature";
    String units "degree_C";
  }
  salinity {
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String ioos_category "Salinity";
    String long_name "Salinity";
    Int32 NAVO_code 16;
    String standard_name "sea_water_practical_salinity";
    String units "PSU";
  }
  NC_GLOBAL {
    String _CoordSysBuilder "ucar.nc2.dataset.conv.CF1Convention";
    String cdm_data_type "Grid";
    String classification_authority "not applicable";
    String classified_by "not applicable";
    String contact "NAVOCEANO";
    String Conventions "CF-1.6, Ocean, Prediction, NetCDF, Convention, V2.0, COARDS, ACDD-1.3";
    String creator_email "frank.bub@navy.mil";
    String creator_name "kelly.r.wood@navy.mil; jeffery.rayburn@navy.mil";
    String creator_url "https://www7320.nrlssc.navy.mil/global_ncom/glb8_3b/html/index.html";
    String derived_from "not applicable";
    String distribution_statement "Approved for public release; distribution is unlimited.";
    String downgrade_date "not applicable";
    Float64 Easternmost_Easting 305.095703125;
    String generating_model "NCOM_4.3";
    Float64 geospatial_lat_max 32.0972900390625;
    Float64 geospatial_lat_min 5.0;
    Float64 geospatial_lat_resolution 0.033330000048047356;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 305.095703125;
    Float64 geospatial_lon_min 262.0;
    Float64 geospatial_lon_resolution 0.033330010150812064;
    String geospatial_lon_units "degrees_east";
    String history 
"not applicable ;
FMRC Best Dataset
2018-05-25T22:50:18Z https://ecowatch.ncddc.noaa.gov/thredds/dodsC/ncom_amseas_agg/AmSeas_Apr_05_2013_to_Current_best.ncd
2018-05-25T22:50:18Z http://upwell.pfeg.noaa.gov/griddap/noaa_ncddc_3d21_0085_7b93.das";
    String id "ncom_amseas_agg/AmSeas_Apr_05_2013_to_Current_best.ncdhttps://ecowatch.ncddc.noaa.gov/thredds/dodsC/ncom_amseas_agg/AmSeas_Apr_05_2013_to_Current_best.ncd";
    String infoUrl "https://ecowatch.ncddc.noaa.gov/thredds/dodsC/ncom_amseas_agg/AmSeas_Apr_05_2013_to_Current_best.ncd.html";
    String initial_time "2000010100";
    String input_data_source "not_applicable";
    String institution "Naval Oceanographic Office";
    String keywords "american, amseas, best, best time series, circulation, coastal, current, currents, data, density, depth, earth, Earth Science > Oceans > Ocean Circulation > Ocean Currents, Earth Science > Oceans > Ocean Temperature > Water Temperature, Earth Science > Oceans > Salinity/Density > Salinity, eastward, eastward_sea_water_velocity, forecast, latitude, longitude, model, naval, navo, navy, ncom, northward, northward_sea_water_velocity, ocean, oceanographic, oceanography, oceans, office, practical, regional, relocatable, salinity, science, sea, sea_water_practical_salinity, sea_water_temperature, seas, seawater, series, temperature, time, time series, velocity, water, water_temp, water_u, water_v";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Approved for public release; distribution is unlimited.";
    String location "Proto fmrc:AmSeas_Apr_05_2013_to_Current";
    Float64 Northernmost_Northing 32.0972900390625;
    String operational_status "operational";
    String publisher_name "OceanNOMADS@noaa.gov";
    String publisher_type "institution";
    String releasable_to "not applicable";
    String sourceUrl "https://ecowatch.ncddc.noaa.gov/thredds/dodsC/ncom_amseas_agg/AmSeas_Apr_05_2013_to_Current_best.ncd";
    Float64 Southernmost_Northing 5.0;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary "Naval Oceanography (NAVO) Navy Coastal Ocean Model (NCOM) Relocatable Model: American Seas Regional Forecast. Best time series, taking the data from the most recent run available. AmSeas Aggregation";
    String testOutOfDate "now+1day";
    String time_coverage_end "2018-05-28T00:00:00Z";
    String time_coverage_start "2013-04-05T00:00:00Z";
    String time_origin "2018-05-23 00:00:00";
    String title "AmSeas Apr 05 2013 to Current, AmSeas Apr 05 2013 to Current, Best Time Series [time][depth][lat][lon], 0.03333°";
    Float64 Westernmost_Easting 262.0;
  }
}

 

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.

griddap request URLs must be in the form
https://upwell.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://upwell.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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