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Dataset Title:  Regional NCOM Alaska 2D (Latest)   RSS
Institution:  Naval Oceanographic Office via NOAA NCEI   (Dataset ID: NCOM_alaska_latest2d)
Information:  Summary ? | License ? | Metadata | Background | Data Access Form
 
Graph Type:  ?
X Axis:  ?
Y Axis:  ?
Color:  ?
 
Dimensions ?    Start ?    Stop ?
time (UTC) ?     specify just 1 value →
    |< -
< <
latitude (degrees_north) ?
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    -
< slider >
longitude (degrees_east) ?
    +
    -
< slider >
 
Graph Settings
Color Bar:   Continuity:   Scale: 
   Minimum:   Maximum:   N Sections: 
Draw land mask: 
Y Axis Minimum:   Maximum:   
 
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    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 1.607904e+9, 1.718928e+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";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 36.45000076293945, 62.04743957519531;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    Int32 NAVO_code 1;
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 190.0, 240.09498596191406;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    Int32 NAVO_code 2;
    String standard_name "longitude";
    String units "degrees_east";
  }
  surf_el {
    String _CoordinateAxisType "Height";
    String _CoordinateZisPositive "up";
    Float32 actual_range -0.9356886, 2.5843332;
    String coordinates "time_run time lat lon";
    String ioos_category "Sea Level";
    String long_name "Water Surface Elevation";
    Int32 NAVO_code 32;
    String positive "up";
    String units "meter";
  }
  surf_atm_press {
    String _CoordinateAxisType "Pressure";
    Float32 actual_range 993.3428, 1013.30664;
    String coordinates "time_run time lat lon";
    String ioos_category "Pressure";
    String long_name "Surface Atmospheric Pressure";
    Int32 NAVO_code 62;
    String units "millibar";
  }
  surf_temp_flux {
    Float32 actual_range -7.543257e-5, 3.3014057e-5;
    String coordinates "time_run time lat lon";
    String ioos_category "Heat Flux";
    String long_name "Surface Temperature Flux";
    String positive "down";
    String units "degC meter/second";
  }
  surf_solar_flux {
    Float32 actual_range 0.0, 2.812683e-7;
    String coordinates "time_run time lat lon";
    String ioos_category "Heat Flux";
    String long_name "Surface Shortwave Flux";
    String positive "down";
    String units "degC meter/second";
  }
  surf_roughness {
    Float32 actual_range 0.0, 0.0;
    String coordinates "time_run time lat lon";
    String ioos_category "Surface Waves";
    String long_name "Surface Roughness";
    String units "m";
  }
  surf_wnd_stress_gridx {
    Float32 actual_range -0.22716464, 0.1915629;
    String coordinates "time_run time lat lon";
    String ioos_category "Wind";
    String long_name "Eastward Surface Wind Stress";
    Int32 NAVO_code 58;
    String units "pascal";
  }
  surf_wnd_stress_gridy {
    Float32 actual_range -0.27110127, 0.14257175;
    String coordinates "time_run time lat lon";
    String ioos_category "Wind";
    String long_name "Northward Surface Wind Stress";
    Int32 NAVO_code 59;
    String units "pascal";
  }
  NC_GLOBAL {
    String _CoordSysBuilder "ucar.nc2.dataset.conv.CF1Convention";
    String cdm_data_type "Grid";
    String classification_authority "not applicable";
    String contact "not applicable";
    String Conventions "Global NCOM";
    String creator_name "kelly.r.wood@navy.mil; jeffery.rayburn@navy.mil";
    String distribution_statement "Approved for Public Release; distribution unlimited.";
    String downgrade_date "not applicable";
    Float64 Easternmost_Easting 240.09498596191406;
    String generating_model "COAMPS alaska_u project";
    Float64 geospatial_lat_max 62.04743957519531;
    Float64 geospatial_lat_min 36.45000076293945;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 240.09498596191406;
    Float64 geospatial_lon_min 190.0;
    String geospatial_lon_units "degrees_east";
    String history 
"created: 2024-06-16 07:31:16 -0000 ;
FMRC Best Dataset
2024-06-19T10:41:56Z https://www.ncei.noaa.gov/thredds-coastal/dodsC/ncom_alaska_agg/Alaska_Dec_17_2020_to_Current_best.ncd
2024-06-19T10:41:56Z https://www.ncei.noaa.gov/griddap/NCOM_alaska_latest2d.das";
    String infoUrl "https://www.ncei.noaa.gov/thredds-coastal/catalog/ncom_alaska_agg/catalog.html?dataset=ncom_alaska_agg/Alaska_Dec_17_2020_to_Current_best.ncd";
    String input_data_source "not applicable";
    String institution "Naval Oceanographic Office via NOAA NCEI";
    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 location "Proto fmrc:Alaska_Dec_17_2020_to_Current";
    String model_type "COAMPS Version v2021.5";
    Float64 Northernmost_Northing 62.04743957519531;
    String operational_status "not applicable";
    String publisher_name "OceanNOMADS@noaa.gov";
    String source "NCOM Version 4.6.8";
    String sourceUrl "https://www.ncei.noaa.gov/thredds-coastal/dodsC/ncom_alaska_agg/Alaska_Dec_17_2020_to_Current_best.ncd";
    Float64 Southernmost_Northing 36.45000076293945;
    String standard_name_vocabulary "CF-1.0";
    String summary "Latest 3-day forecast for NCOM Alaska, 2D";
    String time_coverage_end "2024-06-21T00:00:00Z";
    String time_coverage_start "2020-12-14T00:00:00Z";
    String time_origin "2024-06-16 00:00:00 UTC";
    String title "Regional NCOM Alaska 2D (Latest)";
    Float64 Westernmost_Easting 190.0;
  }
}

 

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://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/griddap/erdBAssta5day.htmlTable?sst[(2007-10-21T00:00:00)][0][(-75):100:(75)][(180):100:(360)]
Thus, the query is often a data variable name (e.g., sst), followed by [(start):stride:(stop)] (or a shorter variation of that) for each of the variable's dimensions (for example, [time][altitude][latitude][longitude]).

For details, see the griddap Documentation.


 
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