Make A Graph

Dataset Title:	SYROCO Black Sea grid and bathymetry
Institution:	seamod.ro (Dataset ID: BS_grid)
Information:	Summary \| License \| Metadata \| Background \| Data Access Form \| Files

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Graph Type:
X Axis:
Y Axis:
Color:

Dimensions

Start

Stop

time_counter

specify just 1 value →

gridY (grid points)

gridX (grid points)

specify just 1 value →

Graph Settings

Marker Type:

Size:

Color:

Color Bar:

Continuity:

Scale:

Minimum:

Maximum:

N Sections:

Y Axis Minimum:

Maximum:

(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

)

X 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:

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_counter {
    Float32 actual_range 0.0, 0.0;
    String long_name "Time Counter";
  }
  gridY {
    Int16 actual_range 0, 257;
    String long_name "grid Y";
    String source_name "y";
    String standard_name "y";
    String units "grid points";
  }
  gridX {
    Int16 actual_range 0, 577;
    String long_name "grid X";
    String source_name "x";
    String standard_name "x";
    String units "grid points";
  }
  gridT_latitude {
    String long_name "Tmask latitude";
  }
  gridT_longitude {
    String long_name "Tmask longitude";
  }
  Tmask {
    Byte _FillValue 127;
    String _Unsigned "false";
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Tmask";
  }
  U_mask {
    Byte _FillValue 127;
    String _Unsigned "false";
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Umask";
  }
  V_mask {
    Byte _FillValue 127;
    String _Unsigned "false";
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String long_name "Vmask";
  }
  bathy_metry {
    String long_name "Bathy Metry";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    Int32 DOMAIN_dimensions_ids 1, 2;
    Int32 DOMAIN_halo_size_end 0, 0;
    Int32 DOMAIN_halo_size_start 0, 0;
    Int32 DOMAIN_number 0;
    Int32 DOMAIN_number_total 1;
    Int32 DOMAIN_position_first 1, 1;
    Int32 DOMAIN_position_last 578, 258;
    Int32 DOMAIN_size_global 578, 258;
    Int32 DOMAIN_size_local 578, 258;
    String DOMAIN_type "BOX";
    String history 
"2024-11-21T23:14:09Z (local files)
2024-11-21T23:14:09Z http://seamod.ro:8080/griddap/BS_grid.das";
    String infoUrl "https://seamod.ro/syroco";
    String institution "seamod.ro";
    String keywords "bathy, bathy_metry";
    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 sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "SYROCO Black Sea grid and bathymetry";
    String title "SYROCO Black Sea grid and bathymetry";
  }
}

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.

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