geograpgy feild work

geograpgy feild work
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  • i went to the beach at selwicks bay to investigate why the beach changes along a stretch of coastline we took a tape, a ruler and a clinomiter with us in order to measure the beach gradient, the pebble size we also classified one square meter of pebbles into colours to work out the beach origins
  • i used a clinomiter like this we measured the pebble size like this we did this 5 times witch is called systamatic sampling the beach gradient used stratifield sampling because we collected a mesurement whenever the beach gradient changed.
  • the theory we were testing was that beach material size will decrese from the top of the beach due to attrition it will also get rounder pebble beaches will be steeper and wave action will create berms lsd brings materials from different locations to the beach.
  • back at school we presented our data in different ways we drew a scatter graph for beach material size we drew pie charts to show beach origins and we drew beach profiles to show beach gradient 
  • conclustions our aims where correct because beach matirial did decrese pebbles got rounder the beach was steaper and long shore drift brought different coloured pebbles
  • but our results are unreliable because the beach is managed, the council regulary regrades the beach to help protect the coastline from erostion this means the beeches are steeper than they they would be naturaly also although the beach material suggests id was LSD that bought that bought it could just be to do with beach replenishment
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