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.
7th February 2025 Report -
Date: Friday, 7th February 2025
Monitoring Team: Dean Tobin (Deakin)
Analysis & Report: David Bills-Thompson, PFCG Technical Officer and Data Co-ordinator
Commentary:
The QST has flagged a loss greater than minus 200% behind Post 9.
If you only have time to look at one chart, please study the QST in conjunction with Post 9B.pdf profile. The height of sand 12m behind post 9 is nearly 1m lower and the dune crest has receded inland by nearly a metre.
The majority of points sampled around the bay show increased sand levels on the beach in front of the posts.
The QST gives a good summary.
Future Profiling from drone mapping will be limited to only relevant profiles.
Due to the importance of the Back profiles (9B and 10B) it will be necessary to drop some of the other front profiles to save time and get important information published days sooner than is otherwise possible when transcribing all of the profile data from Propeller Aero. (Where the drone mapping is processed.)
Propeller Aero continue to make data transcription difficult by regularly changing the User Interface. Their last effort removed the 'tape measure' when drawing the profile across the beach in preparation to extract the sand elevations at each distance that corresponds to our laser measurements. Without a constant update of how long the profile is, it ether ends up too long or too short and has to be redrawn.
The following posts will not have their profiles transcribed from future mapping runs: 1, 2, 4, 5, 6, 8, 11 and 12 but laser measurements can be recorded and published for all posts when available.
Profile data for excluded posts will still be available in Propeller for anyone that requires it. If you need assistance accessing Propeller, I can send you the links for PFCG access.
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.