Generic representation of position on the WGS84 sphereoid East West location 181 degrees 600000 5 North South location 91 degrees 600000 5 Time stamp in UTC month 1..12 day of the month 1..31 UTC hours 0..23 minutes seconds Water level report. In this case from the NOAA Co-Ops 6 minute raw data Prototype only for the Hampton Roads/Elizabeth River 2007 demonstration project http://opendap.co-ops.nos.noaa.gov/axis/ Designated Area Code 366 Functional Identifier 1 extended functional identifier 12 Time the measurement represents Character identifier of the station. Usually a number. station name should be taken from an external lookup table based on stationid @@@@@@@ Location of the sensor taking the water level measurement or position of prediction Water level in centimeters -32768 What reference datum applies to the value Tries to match the first 2 along with the St. Lawrence Seaway. 2 is for Water Level Type of 1?!? Need a good reference to the definition of each MLLW IGLD-85 WaterDepth STND MHW MLS NGVD NAVD 31 Standard deviation of 1 second samples used to compute the water level height could easily be make a more compact decimal m Count of number of samples that fall outside a 3-sigma band about the mean 255 indicates that the water level value has been inferred NOAA Co-Ops I flag flat tolerance limit was exceeded. Need better descr NOAA Co-Ops F flag rate of change tolerance limit was exceeded NOAA Co-Ops R flag temperature difference tolerance limit was exceeded NOAA Co-Ops T flag either the maximum or minimum expected water level height limit was exceeded NOAA Co-Ops L flag Unable to communicate with the tide system. All data invalid Time since last measured value was available If the system has never seen a valid measurement for the station, set the date to WHAT? 1972?