Help for NAVWARNs search

Search filters

Search Terms
  • Allows a string to be used during a search. The following section details the possibilities associated with this component.
Status
  • Allows a NAVWARN status (Published or Cancelled) to be used during a search.
Series
  • Allows a NAVWARN Series to be included in the search.
Start Date
  • Allows a lower bound date (inclusive) to be used in search by date.
End Date
  • Allows an upper bound date (inclusive) to be used in search by date.
Areas
  • Allows areas to be included in a NAVWARN search. If multiple areas are specified, the result will combine the NAVWARNs associated with either of these areas. Areas already encompassed by another selected area are automatically removed from the filter.
  • The Canadian NAVWARN areas are organized in a hierarchical structure, with 4 levels:

    1. National Area (called the Grandparent), i.e. Canada;
    2. Regional Area (called the Parent), i.e. Maritimes, Great Lakes, St. Lawrence, etc.;
    3. Local Area (called the Child/Children), i.e. Fundy, Lake Ontario, Anticosti, etc.; and,
    4. Sub-Area (called Grandchildren), i.e. Toronto Harbour, Howe Sound, Port of Montreal, etc.

    Any search of a Sub-Area will capture all the NAVWARNs within the area, including those associated to National, Regional, and Local areas in the same lineage (Child, Parent, Grandparent). For example, a search for Toronto Harbour will capture all NAVWARNs within this area, AND all NAVWARNs associated to the Lake Ontario area, AND those associated to the Great Lakes area, AND those associated to the Canada area.

    This approach guarantees our clients will receive all the relevant information, but it will sometimes result in a significant number of NAVWARNs in the search results which may seem out of context. To reduce the quantity of search results, the Exclude NAVWARNs of regional scope option has been introduced. By enabling this option, only the NAVWARNs within the selected area (including sub-areas) will be captured in the search results.

    Please exercise caution in using this option, as a number of relevant NAVWARNs associated to the Regional or National areas may be missing from the search results.

Charts
  • Allows charts to be included in a NAVWARN search. If multiple charts are specified, the result will combine the NAVWARNs associated with either of these charts.
Categories
  • Allows categories to be included in a NAVWARN search. If multiple categories are specified, the result will combine the NAVWARNs associated with either of these categories. Categories already encompassed by another selected category are automatically removed from the filter.

Using the "Search Terms" field

Basic search

Behavior of the search engine
  • The search is carried out in the NAVWARNs version linked to the current language of the search form.
  • The words separated by a space will give as results the NAVWARNs containing at least one of the words entered in the request.
  • The search engine is not case sensitive.
  • The search engine ignores accents.

Advanced search

Search for an exact phrase

Use the quotation marks to get the search results for an exact term or phrase.

Example
  • "Port of Quebec" gives as results the NAVWARNs containing the term Port of Quebec.

Wildcard characters

The asterisk (*) is used to replaced multiple characters or a word. The asterisk can be used several times if there are several words to replace.

Examples
  • buo* gives as results the NAVWARNs containing the term buoy.
  • "buoy *" gives as results the NAVWARNs containing the term buoy missing, buoy adrift, etc.
  • "buoy * *" gives as results the NAVWARNs containing the term buoy 5 extinguished, etc.

The question mark (?) is used to replace one, and only one, character.

Example
  • 495? could be used to find all the NAVWARNs associated with sea charts whose number begins with the three digits 495.

Boolean search

Boolean search allows logical equations to find NAVWARNs.

The following boolean operators are valid
  • AND : Results containing both keywords.
  • OR : Results containing at least one of the keywords.
  • NOT or - : The results will not contain the keyword that follows the operator.
  • Parentheses : The search begins with the keywords inside the parentheses, then the keywords outside the parentheses.
Examples
  • Canada AND port will give as results the NAVWARNs containing Canada and port.
  • river OR gulf will give as results the NAVWARNs containing the term river, gulf, or both. The result is the same as if a space had been used.
  • -buoy will give as results the NAVWARNs that do not contain the term buoy.
  • (river OR gulf) AND (buoy OR whale) search first the terms river or gulf, then the terms buoy or whale and find the NAVWARNs that contain both expressions.
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