Beach Monitoring Reports
12th December 2023 Report -
Date: Tuesday, 12th December 2023
Monitoring Team: Peter Sanderson, David, Pat, Natasha
Analysis & Report: David Bills-Thompson, PFCG Technical Officer and Data Co-ordinator
Commentary:
A limited laser monitoring was conducted by Peter S. Natasha, Pat and David. Only posts 1 - 3 were measured and the results will be compared to the VCMP results when that mapping is completed in the next few days.
This special monitoring was part of the ongoing investigation into differences observed between the two measuring systems.
The profiles and the updated QSTe are attached.
Some minor changes have been made to the data sheet that allow (require) two independent readings to be recorded for the post length and the beam height at the post.
This new data sheet was used for the above monitoring and seemed to work well including at the data entry stage.
The reason for the change is to tighten our quality system and minimise the chance of measurement errors that otherwise have no method of validation. These two post measurements (and the post elevation) are critical to providing an accurate profile.
The table above is derived from actual measurements of the beach sand elevation at typical points along East beach. The colours are used to provide an approximate indication of the sand level along the beach compared with historical levels. The range of sand levels and the values at which the colours change are shown in the colour legend at the bottom of the table.
The percentage represents the current sand height compared to the historical minimum and maximum heights ever measured at that location since 2013. These values are calculated from the measurements used to produce the profile charts that give additional information about the sand dynamics at that monitoring point.
These three columns give an overview of the sand level now, how it has changed since the previous measurement and how it compares to last year's results.
A positive number in a red square is usually not a concern but if the number is negative, it indicates that a new low sand level has been detected and further consideration of all the data at that point should be investigated.
Charts for individual Posts
More information
Please contact us if you would like more detailed information.
We can provide:
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spread sheets of all data
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photos for each monthly measurement.