Make A Graph

Dataset Title:	Files, FVCOM, Vancouver Harbour and Fraser River, Baroclinic, X2
Institution:	UBC EOAS & DFO IOS (Dataset ID: ubcSSFVCOM-VHFR-BaroclinicX2)
Information:	Summary \| License \| Metadata \| Background \| Subset \| Data Access Form \| Files

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Graph Type:

X Axis:

Y Axis:

Color:

Constraints

Optional
Constraint #1

Optional
Constraint #2

Server-side Functions

distinct()

(" ")

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

)

[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 {
 s {
  url {
    String ioos_category "Identifier";
    String long_name "URL";
  }
  name {
    String ioos_category "Identifier";
    String long_name "File Name";
  }
  lastModified {
    String ioos_category "Time";
    String long_name "Last Modified";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  size {
    String ioos_category "Other";
    String long_name "Size";
    String units "bytes";
  }
  fileType {
    String ioos_category "Identifier";
    String long_name "File Type";
  }
 }
  NC_GLOBAL {
    String acknowledgement 
"Fisheries & Oceans Canada, 
Ocean Networks Canada (ONC), 
Digital Research Alliance of Canada";
    String cdm_data_type "Grid";
    String creator_email "Michael.Dunphy@dfo-mpo.gc.ca";
    String creator_name "SalishSeaCast Project Contributors";
    String creator_url "https://salishsea-meopar-docs.readthedocs.io/";
    String history 
"2024-04-20T12:29:43Z (local files)
2024-04-20T12:29:43Z https://salishsea.eos.ubc.ca/tabledap/ubcSSFVCOM-VHFR-BaroclinicX2.das";
    String infoUrl "https://salishsea.eos.ubc.ca/";
    String institution "UBC EOAS & DFO IOS";
    String institution_fullname 
"Dept of Earth, Ocean & Atmospheric Sciences, University of British Columbia, 
    Fisheries and Oceans Canada, Institute of Ocean Sciences";
    String keywords "file, identifier, lastModified, model results, modified, name, size, time";
    String license 
"The SalishSeaCast model results are copyright
by the SalishSeaCast Project Contributors and The University of British Columbia.

They are licensed under the Apache License, Version 2.0. https://www.apache.org/licenses/LICENSE-2.0";
    String sourceUrl "(local files)";
    String subsetVariables "fileType";
    String summary 
"Files, FVCOM, Vancouver Harbour and Fraser River, Baroclinic, X2

Baroclinic sea surface height, currents, temperature, and salinity from
VHFR X2 configuration FVCOM model runs.
The values are calculated for an unstructured model grid that covers Vancouver Harbour,
English Bay, and the lower Fraser River on the coast of British Columbia.
From 2019-02-06 onward the model runs include Fraser River discharge forcing based on
daily average discharges from river gauge at Hope with a 1 day lag.
The river temperature is climatological.
The time values are UTC.

The Vancouver Harbour and Fraser River (VHFR) FVCOM model grid and configurations
were developed by Michael Dunphy, et al at the Institute of Ocean Sciences.
The VHFR FVCOM model uses currents, sea surface height, temperature, and salinity
from the Salish Sea NEMO model as boundary conditions, and the same ECCC HRDPS
GEM 2.5km resolution winds that are used to force the NEMO model.

X2: FVCOM-4.1; NEMO-3.6; ubcSSnBathymetryV17-02 bathymetry.";
    String testOutOfDate "now+24hours";
    String title "Files, FVCOM, Vancouver Harbour and Fraser River, Baroclinic, X2";
  }
}

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link)

Data Access Protocol (DAP) (external link)

and its selection 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 or Subset form. They make 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.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.

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