Saturday, January 26, 2019
Long shore Drift
The managed dent of the beach provide be ingrained more than the unmanaged section from longshore retch and thus find coastal erosion.My intentions ar to carry expose an investigation, which will determine the affects of longshore impulsion. The investigation itself will be broken into two different parts, these being the affect of longshore drift on a managed section, which has groynes to trap sediment, thus forming a overprotective beach. I will assess these areas before continuing with any info collection, when we had discovered a managed.I lowstand that longshore drift is an important coastal process as it is related to the transportation and deposition of sediment and how both erosion occurs by abrasion or attrition or hydraulic action.How does human management puzzle an affect on the process of longshore drift?I can expand on this question to create foursome sub-questionsWhat affects does longshore drift have on the managed coastline?What affects does longshore dr ift have on the unmanaged coastline?How do management techniques such as groynes affect longshore drift?What effects are in that location on the unmanaged section of the coastline? systemThe methods below are to care me answer the purpose of the investigation.Field Sketches or PhotosEquipment?Pencil and Paper and electronic computerMethod?* Simply involves annotating relevant sketches drawn by programs on computer. wherefore is it necessary?It provides an in depth, detailed outlook of the area below study. It is also a good sourceAdvantages?* It is simple to achieve alone it can account for explanation of my ideas.* This method needs a basic requirement of equipment.Disadvantages?* The sketch must be accurate otherwise the examiner will not understand what I am explaining.* Photos obtained from computer whitethorn be inaccurateWhere?In areas with great importance to parts of coastline under studyQuestionnairesEquipment?Questionnaire, eleven relevant questions and pen.Method?* Ask people somewhat the vercinity the questions.* Record the answers on the database as part of a group collection.Why is it necessary?It acquires the opinions of the public to how effective management techniques and how problems can be improved.Advantages?* It collects a wide range of views from different opinions.* The results can be moulded into different forms of representations of data.Disadvantages?* close to people may refuse to or do not have the quantify to answer the questionnaires some may not be trusted and may guess the answer.Where?I will take samples on the seafront and in the town centre.Analysis of Sediment FlowEquipment?Tennis ballMethod?* Place each one in the swash zone of the sea.* supervise the movement over a period of time and record their caution and distance traveled.Why is it necessary?This is simply to discover the impact of longshore drift on the coastline and its sediment.Advantages?* It shows the direction and speed of longshore drift.* It is a n easy method to accomplish.Disadvantages?* It is time consuming.* If there is little longshore drift, then the movement of the ball is limited.Beach ProfileEquipment?Ranging Poles, clinometer, measuring stick tape and record sheetMethod?* Place poles on background knowledge so that they do not penetrate.* Apply clinometer to section on pole and measure angle that the clinometer records.* Record results for each 2m interval on a longitudinal plain.Why is it necessary?By carrying out this investigation, I can see to what extent sediment build up is occurring and link my conclusions to longshore drift.Advantages?* It shows how the beach differentiates in slow gradient.Disadvantages?* The method is very time consuming* The angle of negative or positive elevation may contain an error of judgment.Where?Both sides of the groyne in a managed section
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