METAR XML Output Data Format

• The METAR XML output has an XML schema .


• METAR fields are returned in the same order, indicated by the METAR Field Description.
  The XML element names are in lower-case, with words separated by an underscore (_). The units of the field are reflected in the element name. For instance, the element cloud_base_ft_agl indicates that for the cloudBase field, the height of the cloud base is represented in feet (above ground level).


• The output includes some statistics about the request, such as the number of results and the time taken to fulfill the request.


• All data is ordered by descending observation time, except in cases where a flight path constraint is used. For flight path queries, data is ordered by distance along the flight path from origin to destination


• An error message is generated when an error in the input request prevents the retrieval of data.


• If a constraint parameter is missing and a default value exists, an appropriate warning message is produced and the default request is fulfilled.


• For a description of the METAR field names, their units and types, please refer to: METAR Field Description