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ERDDAP > griddap > Make A Graph ?

Dataset Title:  Data from a local source. Subscribe RSS
Institution:  ???   (Dataset ID: UF_NAM_3D_NG)
Information:  Summary ? | License ? | Metadata | Background (external link) | Data Access Form
 
Graph Type:  ?
X Axis:  ?
Y Axis:  ?
Color:  ?
 
Dimensions ?    Start ?    Stop ?
time (UTC) ?
    +
    -
< slider >
jc ?     specify just 1 value →
    << -
< <
ic ?     specify just 1 value →
    << -
< <
 
Graph Settings
Marker Type:   Size: 
Color: 
Color Bar:   Continuity:   Scale: 
   Minimum:   Maximum:   N Sections: 
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 ? )
    Time range:    <<                  >>
[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 1.399766e+9, 1.399961e+9;
    String axis "T";
    String calendar "gregorian";
    String ioos_category "Time";
    String long_name "Time of HC or FC";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  jc {
    Float32 actual_range 1.0, 200.0;
    String axis "Y";
    String ioos_category "Location";
    String long_name "y-coordinate in Cartesian system";
  }
  ic {
    Float32 actual_range 1.0, 444.0;
    String axis "X";
    String ioos_category "Location";
    String long_name "x-coordinate in Cartesian system";
  }
  zeta {
    Float32 _FillValue -999.0;
    Float64 colorBarMaximum 2.0;
    Float64 colorBarMinimum -2.0;
    String datum "NAVD88";
    String ioos_category "Sea Level";
    String long_name "Sea Surface Height";
    String standard_name "sea_surface_height_above_sea_level";
    String time "time";
    String units "m";
    Float32 valid_max 20.0;
    Float32 valid_min -20.0;
  }
  hsig {
    Float32 _FillValue -999.0;
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Surface Waves";
    String long_name "Significant Wave Height";
    String standard_name "sea_surface_wave_significant_height";
    String time "time";
    String units "m";
    Float32 valid_max 20.0;
    Float32 valid_min 0.0;
  }
  salinity {
    Float32 _FillValue -999.0;
    Float64 colorBarMaximum 37.0;
    Float64 colorBarMinimum 32.0;
    String ioos_category "Salinity";
    String long_name "Sea water salinity (structured grid)";
    String standard_name "sea_water_salinity";
    String time "time";
    String units "1e-3";
    Float32 valid_max 50.0;
    Float32 valid_min 0.0;
  }
  uvelocity {
    Float32 _FillValue -999.0;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String ioos_category "Currents";
    String long_name "Zonal Current";
    String standard_name "eastward_sea_water_velocity";
    String time "time";
    String units "m.s-1";
    Float32 valid_max 50.0;
    Float32 valid_min -50.0;
  }
  vvelocity {
    Float32 _FillValue -999.0;
    Float64 colorBarMaximum 0.5;
    Float64 colorBarMinimum -0.5;
    String ioos_category "Currents";
    String long_name "Meridional Current";
    String standard_name "northward_sea_water_velocity";
    String time "time";
    String units "m.s-1";
    Float32 valid_max 50.0;
    Float32 valid_min -50.0;
  }
  NC_GLOBAL {
    String _CoordSysBuilder "ucar.nc2.dataset.conv.CF1Convention";
    String cdm_data_type "Grid";
    String contact "davis@coastal.ufl.edu; pva@coastal.ufl.edu";
    String Conventions "CF-1.6, COARDS, Unidata Dataset Discovery v1.0";
    String history 
"Mon Mar 23 11:28:46 2015: ncatted -O -a units,time,m,c,seconds since 1970-01-01 00:00:00 corrected/CH3D_NG_3D_NAM_none_201405120000.nc
Mon Mar 23 11:28:46 2015: ncap2 -s time(:)={1399852800.0} processed/CH3D_NG_3D_NAM_none_201405120000.nc corrected/CH3D_NG_3D_NAM_none_201405120000.nc
Fri Mar 20 18:12:18 2015: ncea -d time,0,0 /mnt/gluster/data/netCDF/uf_nam/3D/NorthernGulf//CH3D_NG_3D_NAM_none_201405120000.nc /mnt/gluster/data/netCDF/uf_nam/3D/NorthernGulf//processed/CH3D_NG_3D_NAM_none_201405120000.nc
Fri Mar 20 18:12:17 2015: ncatted -O -a _FillValue,global,d,c, /mnt/gluster/data/netCDF/uf_nam/3D/NorthernGulf//CH3D_NG_3D_NAM_none_201405120000.nc
2018-10-17T05:37:32Z (local files)
2018-10-17T05:37:32Z http://erddap.axiomdatascience.com/griddap/UF_NAM_3D_NG.das";
    String infoUrl "???";
    String institution "???";
    String keywords "above, circulation, current, currents, data, density, Earth Science > Oceans > Ocean Circulation > Ocean Currents, Earth Science > Oceans > Ocean Waves > Significant Wave Height, Earth Science > Oceans > Salinity/Density > Salinity, Earth Science > Oceans > Sea Surface Topography > Sea Surface Height, eastward, eastward_sea_water_velocity, grid, height, level, local, meridional, northward, northward_sea_water_velocity, ocean, oceans, salinity, sea, sea level, sea_surface_height_above_sea_level, sea_surface_wave_significant_height, sea_water_salinity, seawater, significant, source, structured, surface, surface waves, topography, velocity, water, wave, waves, zonal";
    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 Metadata_Conventions "CF-1.6, COARDS, Unidata Dataset Discovery v1.0";
    String model_name "CH3D-SSMS";
    String model_version "9.0";
    Int32 nco_openmp_thread_number 1;
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF-12";
    String summary "Data from a local source.";
    String time_coverage_end "2014-05-13T06:03:20Z";
    String time_coverage_start "2014-05-10T23:53:20Z";
    String title "Data from a local source.";
  }
}

 

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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