Data Access Form

Dataset Title:	High resolution images of Netley-Libau Marsh
Institution:	Centre for Earth Observation Science (Dataset ID: Netley_Libau_Marsh_Images_eeb8_bf73_aed3)
Information:	Summary \| License \| Metadata \| Background \| Subset \| Files \| Make a graph

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Variable

Optional
Constraint #1

Optional
Constraint #2

Minimum

or a List of Values

Maximum

url

name (File Name)

lastModified (UTC)

2022-03-30T16:07:06Z

2022-03-30T16:17:55Z

size (bytes)

4490010.0

4.9878708E7

fileType

Server-side Functions

distinct()

Hover here to see a list of options. Click on an option to select it.

File type: (more info)

(Documentation / Bypass this form )

(Please be patient. It may take a while to get the data.)

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 cdm_data_type "Other";
    String creator_email "elise.watchorn@canada.ca";
    String creator_name "Watchorn, Elise";
    String Data_collection_end_date "2013-08-11";
    String Data_collection_start_date "1979-01-01";
    String Dataset_Author "Watchorn, Elise";
    String Dataset_Author_Affiliation "Environment and Climate Change Canada";
    String Dataset_Author_Email "elise.watchorn@canada.ca";
    String history 
"2025-07-01T02:24:54Z https://canwin-datahub.ad.umanitoba.ca/data/dataset/hires-netlib/resource/40d606a1-affd-40c5-bead-81200048f006
2025-07-01T02:24:54Z http://CanWINerddap.ad.umanitoba.ca/erddap/tabledap/Netley_Libau_Marsh_Images_eeb8_bf73_aed3.html";
    String infoUrl "https://canwin-datahub.ad.umanitoba.ca/data/dataset/hires-netlib";
    String institution "Centre for Earth Observation Science";
    String keywords "canada, change, climate, data, environment, file, identifier, images, lastModified, libar, marsh, modified, name, netley, netley-libar, observation, resolution, science, size, time";
    String license "Open Government Licence 2.0 - Canada";
    String Research_Area "Netley-Libau Marsh";
    String sourceUrl "https://canwin-datahub.ad.umanitoba.ca/data/dataset/hires-netlib/resource/40d606a1-affd-40c5-bead-81200048f006";
    String subsetVariables "fileType";
    String summary "High resolution images of Netley-Libau Marsh during 1979 to 2013 and water distribution from 1990 to 2013.";
    String title "High resolution images of Netley-Libau Marsh";
    String Type "Dataset";
  }
}

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.