They serve to narrow down the user’s search results based on their needs. To use the filters, the user must have previously chosen a Search Context from the seven existing in the Search Engine, located in the tool panel.
Search by geometry: the search engine filters based on a polygon drawn on the map and shows the applicable results within the geometry. Access the article Search by drawing on the map to learn how it works.
The 7 Search Contexts (Territories, Maps, Geo-reports, Locations, Instruments, Data Sets and Annotations) have the four filtering tools enabled. The variables that can be chosen in the Advanced Search are adapted to the characteristics of each Context.