This method returns a string (formatted as XML) with a list of all of the study regions for which data have been published. This method returns a string (formatted as XML) with all of the metadata for that region. Given the ID for a study region, this method returns a string (formatted as XML) with a list of all of the spatial data services associated with that region. Given the ID for a study region, this method returns a string (formatted as XML) with a list of all of the WaterOneFlow data services associated with that region. This method returns a string (formatted as XML) with all of the metadata for published spatial data services. Given the ID for a spatial data service, this method returns a string (formatted as XML) with all of the metadata for that spatial data service. This method returns a string (formatted as XML) with all of the metadata for published WaterOneFlow data services. Given the ID for a WaterOneFlow data service, this method returns a string (formatted as XML) with all of the metadata for that WaterOneFlow data service.