How to Search for Resources
There are many ways to search a geoportal, and it is possible to search the geoportal from a variety of client applications. Some of these clients are listed in the table below. The Geoportal basic and advanced search are further described in this topic. After conducting a search, see How to Use Search Page Results.
|Client Application||Geoportal search mechanism|
content management system
Embed the REST URL to the resource or the search criteria
Register the Geoportal as your open search provider
Flex-based map viewer
Geoportal web application basic search
Geoportal homepage (see 'basic and advanced search' section below)
Geoportal web application advanced search
Geoportal search tab (see 'basic and advanced search' section below)
Geoportal basic and advanced search
Basic search is accessed from the geoportal homepage. There is a field on the homepage labeled Search. Simply enter a search term keyword in the field, click the Search button, and the results of your text search will display in the search results page. Because the geoportal leverages the lucene query syntax, powerful searches are possible even through the basic text search.
Advanced Search is accessed by clicking the Search tab on the geoportal web application interface. Advanced search enables you to narrow search results by selecting additional filters. The filters described below can be removed from the search query by clicking the Clear link on the search page.
|Filter||How to Use||Options|
search term input box
Use the search term input box to input a search term or query.
interactive map spatial extent search
Define the spatial extent of the records to be returned from the search, using the Locate Tool and the Map Navigation Tools.
Click the Records shown from: link and select from the listed resources on the list. This enables searching remote catalogs from the geoportal's interface. When you execute a federated search to a remote catalog, there is no guarantee that the same supported lucene syntax of the native geoportal will return results from the remote catalog. If you have problems retrieving results from a remote catalog, try a simple text search instead of a lucene query.
Resources listed in the federated search dialog are registered CS-W based catalogs, certain customized REST endpoints, or ArcGIS Search Service endpoints.
When the Additional Options link is selected, additional filters are applied to the search. These filters are only sure to be applied to the local geoportal.
Content Type, Topic Category, Modified By dates, and Sorting Results. These are described below. It is possible that additional filters have been added as well, as per the developer customization Add Custom Search Criteria.
Additional Options > Content Type
Searches return documents that are associated with one of eleven content types. Content type is a designated property that the geoportal uses to identify what kind of resource is being described. Some resources provide content type information in their associated metadata, but in most cases the geoportal uses its own logic to determine the content type of a resource.
Additional Options > Data Category
Nineteen topic categories defined in the ISO 19115 metadata standard. FGDC metadata has integrated the topic category concept into its own tags as well. Searching by data category will retrieve resources that have the selected data category in its designated place in the resource's metadata XML.
Users can choose more than one data category by checking them in the search form list. Checking more than one box broadens the search; results will be returned for resources from any or all of the data categories selected.
Additional Options > Modified Dates
Refers to the date the resource's metadata was last modified within the geoportal catalog.
By designating a start date and an end date, the search will return records that have been modified during that designated time period.
Additional Options > Sorting Results
Results are shown sorted by one of seven criteria from the resource's metadata XML. Users can designate how results should be sorted by choosing one of the following from the Sort By drop down box.
How to Save a Search
If you find that you enter the same search criteria often, you may want to save the search. Saving the search automatically loads your search criteria and runs the search without you having to input all your specific values on the advanced search page form. You can access the list of searches you saved by clicking the My Saved Searches link to the right of the Search button on the Advanced Search Page. Click on the search name to load the search criteria and run the search. Click on the delete link to delete the saved search. Please note that you can maintain up to 10 saved searches at a time.