Example timeseries for XML encoding http://www.opengis.net/spec/waterml/2.0/req/xsd-timeseries-time-value-pair 2011-11-21T12:27:00+10:00 2011-11-21T12:30:00+10:00 2011-11-21T12:27:00+10:00 PT1M P1M 3.0 3.2 0.1 3.63