Infiltration rate • Single ring Infiltrometer
• Ruler
• Water
• Hammer
• Measuring Tape
• Stopwatch
• Bucket First, a measuring tape was placed down along the 15m beach transect. Every 5 meter/15cm in diameter was hammered in to the wave cut platform. A bucket of water was then collected from the beach and poured into a 20cm high single-ring infiltrometer.
We timed (with a stopwatch) how much the water in the infiltrometer would decrease in a minute which measured by a ruler (in mm). This process was repeated on both managed and unmanaged sections of the beach. We conducted an investigation on both the unmanaged and managed section of the beach. The infiltration rate test on unmanaged section shows slow infiltration because there is no sediment because the clay is impermeable.
The infiltration rate depends on the amount of sediment (the more sediment the faster the infiltration rate and the less sediment the slower the infiltration rate).
- If there is more sediment in a place this tells you the groynes are working because the purpose of it is to trap the sediment. Exposed wave cut platform shows it’s cut off because of the groynes, which shows the groynes are working by however much sediment there is at different points of the beach. Because the long shore drift is depositing it there and therefore the heavier sediment is layered on top.
Beach Profile • Theodlite
• Tripod
• Measuring Tape
• Meter Ruler A 15m transect was put in place. A tripod was then placed into the ground and a theodolite was placed on top. At every metre a metre ruler was used to measure the height of the beach and results were recorded. This was completed on the managed and unmanaged zones. The beach profile shows the cross section of the beach and shows that there is more sediment on the managed section of the beach because the profile is steep. This indicates that the