Get metada for Frost API sources.

The output format of the result.

The Frost API source ID(s) that you want metadata for. Enter a comma-separated list to select multiple sources. For sources of type SensorSystem or RegionDataset, the source ID must be of the form <prefix><int> where <prefix> is SN for SensorSystem and TR, NR, GR, or GF for RegionDataset. The integer following the prefix may contain wildcards, e.g. SN18*7* matches both SN18700 and SN18007.

The type of Frost API source that you want metadata for.

If specified, only sources for which observations are available for all of these elements may be included in the result. Enter a comma-separated list of <a href=concepts2.html#searchfilter>search filters</a>.

Get Frost API sources defined by a specified geometry. Geometries are specified as either nearest(POINT(...)) or POLYGON(...) using <a href='https://en.wikipedia.org/wiki/Well-known_text'>WKT</a>; see the reference section on the <a href=concepts2.html#geometryspecification>Geometry Specification</a> for documentation and examples. If the nearest() function is specified, the output will include the distance in kilometers from the reference point.

The maximum number of sources returned when using nearest(POINT(...)) for geometry. The default value is 1.

If specified, only sources that have been, or still are, valid/applicable during some part of this interval may be included in the result. Specify <date>/<date>, <date>/now, <date>, or now, where <date> is of the form YYYY-MM-DD, e.g. 2017-03-06. The default is 'now', i.e. only currently valid/applicable sources are included.

If specified, only sources whose 'name' attribute matches this <a href=concepts2.html#searchfilter>search filter</a> may be included in the result.

If specified, only sources whose 'country' or 'countryCode' attribute matches this <a href=concepts2.html#searchfilter>search filter</a> may be included in the result.

If specified, only sources whose 'county' or 'countyId' attribute matches this <a href=concepts2.html#searchfilter>search filter</a> may be included in the result.

If specified, only sources whose 'municipality' or 'municipalityId' attribute matches this <a href=concepts2.html#searchfilter>search filter</a> may be included in the result.

If specified, only sources whose 'wmoId' attribute matches this <a href=concepts2.html#searchfilter>search filter</a> may be included in the result.

If specified, only sources whose 'stationHolders' attribute contains at least one name that matches this <a href=concepts2.html#searchfilter>search filter</a> may be included in the result.

If specified, only sources whose 'externalIds' attribute contains at least one value that matches any of the specified, comma-separated list of <a href=concepts2.html#searchfilter>search filters</a> may be included in the result.

If specified, only sources whose 'icaoCodes' attribute contains at least one name that matches this <a href=concepts2.html#searchfilter>search filter</a> may be included in the result.

If specified, only sources whose 'shipCodes' attribute contains at least one name that matches this <a href=concepts2.html#searchfilter>search filter</a> may be included in the result.

If specified, only sources whose 'wigosId' attribute matches this <a href=concepts2.html#searchfilter>search filter</a> may be included in the result.

A comma-separated list of the ontologyids that should be present in the response. Default if not set is to include all.

A comma-separated list of the fields that should be present in the response. If set, only those properties listed here will be visible in the result set; e.g.: name,country will show only those two entries in the result in addition to the id which is always shown.