By default all services and their sub-functions use the entire database of profiles to determine the requested information. To apply a function to a selection of profiles (for instance to compute the number of floats in a given region sampled a given year), you need to impose restrictions on profiles properties. Doing so is as simple as adding more RestrictionParameter=Value pairs to a NA-ARC web API query.
Restrictions can be sorted between parameters imposing, for each profile, a restriction on:
Restrictions can also be applied to control the API output (such as the format or the number of returned elements):
Below are listed all parameters available to apply a restriction on profiles in order to create a custom selection.
Note that those restrictions can be applied with any functions from any service . In the documentation examples we'll often used function n from the service get.
Last, note that you can cumulate restrictions on the same query by concatenating RestrictionParameter=Value with the & symbol.