National Network of Regional Coastal Monitoring Programmes

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Note that these are real-time data and are not quality-controlled. Long-range graphs are plotted from a randomised subsample of half-hourly data.

Second Severn Crossing

  

These wave data have undergone full quality control. Poor data is flagged, not removed. A summary of the flagging system is included in the table below.

Full details of the flagging and quality control procedures can be found in the Quality Assurance and Quality Control of Waves Data handbook.

In subsequent use of the data, please use the following attribution:

Copyright: Teignbridge DC
Acknowledgement: Southwest Regional Coastal Monitoring Programme

Waves QC Data
















FlagSuspect ParametersNot Suspect ParametersDescription
0Hs, Tz, Tp, Direction, Spread, SSTAll data pass
1Hs, Tz, Tp, Direction, SpreadSSTEither Hs or Tz fail, so all data fail, except SST
2Tp, Direction, SpreadHs, Tz, SSTTp fail + derivatives
3Direction, SpreadTp, Hs, Tz, SSTDirection fail + derivatives
4SpreadDirection, Tp, Hs, Tz, SSTSpread fail
5Not used
6Direction, SpreadHs, Tz, Tp, SSTRe-processed due to breaking waves
7Hs, Tz, Tp, Direction, Spread, SSTBuoy off location
8SSTHs, Tz, Tp, Direction, SpreadSST fail
9Hs, Tz, Tp, Direction, Spread, SSTMissing data

These tide data have undergone full quality control. Poor data is flagged, not removed. A summary of the flagging system is included in the table below.

Full details of the flagging and quality control procedures can be found in the Quality Assurance and Quality Control of Tide Data handbook.

In subsequent use of the data, please use the following attribution:

Copyright: Teignbridge DC
Acknowledgement: Southwest Regional Coastal Monitoring Programme

Tide QC Data















FlagDescription
0Not used
1Good data
2Interpolated value
3Doubtful value, typically not used
4Isolated spike or wrong value
5Correct but extreme value
6Reference change detected, typically not used
7Constant values, i.e. flat-lining
8Out of range
9Missing data