Coastal Fieldwork Flashcards

Unit 2

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1
Q

What is the research question of your fieldwork investigation?

A

To what extent does coastal managment impact coastal processes at Al Hamraya Beach?

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2
Q

Explain why your reserch question was suitble for your geographical investigation…

A

L-Location- The area was local and accessible

E-Enviroment-Varity allowed differences to be analysed

S-Scale-Area was small enough to allow multiple sampling points in time allowed

S-Saftey-Lifegaurd at the beach and weather forecast checked

R-Reliablility-Small scale allowed repetition of measurments to reduce bias

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3
Q

Explain how you identified you research question for your fieldwork investigation…

A
  • Identify local changes (design investigation to see cause
  • Secondary data source suggested issue (therefore the basis for an investigation)
    -Google earth to see changes in beach width (identify specific sampling sights)
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4
Q

Explain how you used secondary research in your geographical investigation…

A

Google maps-Timeline function allows beach width measurements to show historic changes

Fieldtrip Data- Comparison with previous fieldtip data collect in the area

Weather and surf data-Wind direction (historic, current and forecast), wave height and direction

Dubai shoreline management plan- Article- Impact of development on Dubai coastline has data and maps for comparison

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5
Q

What is a pilot survey?

A

A pilot survey is a strategy used to test the questionnaire using a smaller sample compared to the planned sample size

Survey is given to a percentage of the total population

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6
Q

Advantages of a pilot survey

A

Identifies potential problems - Helps identify potential issues or weaknesses in the survey design, questions, or methodology. Allowing necessary adjustments before conducting the main survey, ensuring more accurate and reliable data collection

Reduces cost and time - making sure main survey can be as accurate as possible

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7
Q

Disadvantages of a pilot survey

A

Additional time and resources

Small sample size - not the whole picture

potential bias - not a representative of the larger population

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8
Q

What is sampling?

A

A shortcut method for investigating a whole population

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9
Q

What is systematic sampling?

A

A method of selecting a sample from a larger population in regular, orgered way. this means choosing every nth item along a transit line

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10
Q

Advantages of systematic sampling

A

Straight forward (then ransom sampling)

Good coverage of the study area

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11
Q

Disadvantages of systematic sampling

A

More biases - as not all members or points have an equal chance of being selected

Many lead to an unrepresentative of a particular pattern

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12
Q

What is random sampling?

A

A sampling method where you uses random number tables to unbiasedly pick sampling locations

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13
Q

Advantages of random sampling

A

can be used with a large population

Avoid biased

simple

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14
Q

Disadvantages of random sampling

A

Logistical challenges: can be difficult in a large or hard to access population

Possible over-representation or under-representation

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15
Q

Advantages of Stratified sampling

A

Representative sample - ensures all subgroups within a population are represented

Increase precision - each group is represented providing more accurate and reliable results

Comparative analysis

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16
Q

Disadvantages of stratified sampling

A

Complexity in implementation

Cost and resources

Risk of misclassification

Sample size management

17
Q

What is stratified sampling

A

A method used to ensure that diffrent sub-groups within a population are adequatly represented in a sample

The population is dived into distinct sub groups, and random samples are taken from each sub group in proportion to their size or significance in the overall population

18
Q

Explain how you collected the primary data - how do you structure this question?

A

Sampling- Why? Type?

Method of collecting

Equipment used

Recordinng (how id you do this

Digital photographs

Voice notes and fieldnotes

19
Q

Explain how you used secondary data to support your fieldwork investigation

A

secondary data was used to support primary data

Secondary data and reserch supported the design of smapling framework

Results were compared with secondary data

Conclusions made from a range of sources

Secondary information was used to provide quantitative data for statistical analysis

20
Q

Advantages of out Data presentation methods - results and analysis

A

L- Linear shows continuous change

E- Easy to read

A-Anomalies easy to see

D-Data (actual) can be had

S-Systematic-allows full coverage of the area

21
Q

Disadvantages of our data presentation methods - results and analysis

A

S - Secondary data not used

O- One location shown only

R- Representation systematic-some changes assumed not shown between points

E- Explanation not offered

C- Comparison between graphs difficult

22
Q

What is data analysis used for?

A

Data analysis can be used to prove ‘to what extent’ the pattern found is statistically significant and not down to chance

Anylsitical tools such as MEAN,MODE and MEDIAN are used

23
Q

Data analysis acronym

A

H-Hypotheses make a link- the updrift of the goryne will have more gentle gradient/wider beach than the downdrift side of the groyne

A- Averages of data on the profile

R - Range of gradient between updrift and downdrift

D - Data used

A- Anomalies

A- Accuracy of the data - inaccuracy in recording data and therefore lack of coverage. Data is not representative of the whole beach

T- Theory-make a link to longshore drift

24
Q

Evaluate how successfully your investigation answered the title or question you chose

A

M- METHODOLOGY

A- ACCURACY of results

S- SAMPLING FRAMEWORK site, distance between sites, method

C- CONCLUSION strength. Reflect on ‘to what extent

A- ACCURACY of results

R- RANGE and quality of data

A- ANOMALIES

L- LOCATION suitability- why chosen and context

T- TOPIC appropriateness

D- DATA analysis- method, mean, range, spearmans rank

25
Q

What factors could influence the Reliability of your investigation?

A

Short stregch of coast - unrespresentative

cannot compare results with similar coastal area- could have confirmed their findings as being representative and allowed them to comment on the degree of reliability

One short stregch=limited data therefore uncertinty in conclution as they are making a generalisation

Only represents the shape of the beach at the time of measurements

Subsequent tides, currents, waves, or storm may change the shape of the beach dramatically from day to day

Short term observed at a beach profile loaction do not necessarily repesent a long term trend (seasonal, annual, or decadal) trends

Change obderved at a specific porfile loaction do not necessarily reprent overall changes at an entire beach

at a few locations the profile starting points has changed over time, this can lead to some graphs shwoing unusually large offsets of the profiles that do not represnt beach erosion or accretion

recorded beach profil data should not be the only source of data used to determine bach managment actions