Beach Monitoring Reports
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.
2nd February 2024 Report -
Date: Friday, 2nd February 2024
Monitoring Team: Blake, Nick, Sue
Analysis & Report: David Bills-Thompson, PFCG Technical Officer and Data Co-ordinator
Comparison with previous VCMP measurements of fixed objects shows this mapping with a high confidence in its accuracy.
Profiles 9B and 10B show evidence of dune face erosion.
The QST has been adjusted to show all four profiles around posts 9 and 10 as there is a significant loss of sand from the dune face along this section of beach.
While the high sand levels in front of 9 and 10 are showing Green, it is likely some of this 'extra' sand has come from the dune face and not from the bay.
A volume comparison of gain and loss along this section is shown in the image DuneFace2.jpg. As the Fill volume in this image is significantly greater than the Cut volume, it is possible that some beach sand has been sourced from the bay rather than eroded from the dune face.