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The stages of geographical fieldwork enquiry

The stages of geographical enquiry

Stage 1: Introduction and planning

  • Title

  • Aims stated

  • Hypothesis devised

  • Selection of suitable location

  • Risk Assessment

Stage 2: Fieldwork techniques and methods

  • Primary data collection

  • Secondary research

  • Risk management

Stage 3: Data Processing and presenting

  • Data Presentation

Stage 4: Analysing and Interpreting data

  • Data Analysis

  • Data Interpretation

Stage 5: Conclusions/Evaluation

  • Hypothesis (accepted or rejected)

  • Geographical conclusion

  • Evaluation

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Planning

Planning an enquiry:

  1. Identify questions or issues for investigation.

  2. Develop one aim.

  3. Develop a minimum of two appropriate hypotheses.

1. Identifying questions or issues for investigation.

The first stage is to identify a topic. The issue or questions should relate directly to something covered in Unit 1 or 2.

Unit 1: Physical geographyUnit 2: Human geography
ExamplesRiversPopulation change
CoastsMigration
WeatherLand use
RocksChanges to the inner city
Urbanisation
Development
Managing our resources
Tourism

A popular topic for investigation is Rivers.

Potential title: A study of how river features change downstream.

2. Develop one aim

The aim is the overall goal or target that a piece of fieldwork will reach.

Aim: To test the changes that happens within a river from the upper to lower course in the river.

3. Develop a minimum of two appropriate hypotheses

A hypothesis is a statement that will be tested through the fieldwork investigation. It should be linked to geography theory.

Hyp 1: The cross-sectional area of the Glenarm River increases with distance from the source.

Hyp 2: The bedload size will decrease and the bedload shape will become more rounded as the river flows downstream.

Primary and secondary sources

  • Primary sources - data collected first hand.

  • Secondary sources - data from other sources such as maps, texts or census.

Information collected in the field for the rivers fieldwork will be primary information.

Maps used to plot the different sites along the course of the river where the measurement of the results would be taking place will be secondary information.

Risk assessment

A risk assessment is required to identify potential risks involved in fieldwork and how they can be reduced.

Rivers can be very dangerous. Before entering the water you should check that the water levels and velocities are safe.

Photograph of Fieldwork on the Glenarm River
Image caption,
Fieldwork on the Glenarm River

Safety equipment for crossing a river:

  1. Waders - long boots that keep your feet and legs dry and provide stability in the water.

  2. Ranging poles - useful for keeping you steady as you move in the river.

  3. Safety rope - a rope tied about 1m above the surface of the water to give you something to hold onto as you cross the river.

Other equipment:

  1. First Aid kit

  2. Emergency whistle - can be blown to attract attention in an emergency.

  3. Bivvy bag - useful to carry an injured person or to act as a shelter in extreme weather.

  4. Mobile phone - useful for contacting the emergency services.

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Fieldwork techniques and methods

There are many different techniques that can be used in geography fieldwork.

Select appropriate data collection methods that will be clearly linked to the specific aims and hypotheses stated.

Identify the equipment that would ensure results are both accurate and reliable.

Recording sheets are used to make note of a range of measurements and observations at a number of locations.

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Hypothesis 1

Hyp 1: The cross-sectional area of the Glenarm River increases with distance from the source.

In order to investigate the cross-sectional area of a river you must visit 5 different sites from the upper course, middle and lower course.

Equipment: Metre ruler, long tape measure

Measuring the cross section: measure the width of the channel and the depth of the channel.

  • Channel width (m): Stand with your back to the source (upstream) stretch the tape measure from the right river bank to the left river bank, ensuring that the tape is at least 1m above the surface of the water. Measure the width of the river from the inside of the right bank edge to the left bank edge.

  • Channel depth (m): Keep the tape measure stretched across the width of the river. Use the metre ruler to record the depth of water from the river bed to the surface of the water. Start from one river bank and move at 30cm intervals across the river.

  • Cross sectional area (CSA) (m2) This is a simple calculation to measure the amount of water at each site (the cross sectional area of the water).

CSA(m2) = width (m) x average depth (m)

Fieldwork on the Glenarm River
Image caption,
Fieldwork on the Glenarm River

Example of recording sheet for width and depth measurements

River siteChannel widthNear bank (0cm)30cm60cm90cm1.2m1.50m1.80m2.10m
Site 1
Site 2
Site 3
River site2.40m2.70m3.00m3.30m3.60m3.90m4.20m4.50m4.80m
Site 1
Site 2
Site 3
River site5.10m5.40m5.70m6.00m6.30m6.60m6.90m7.20m7.50m
Site 1
Site 2
Site 3
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Hypothesis 2

Hyp 2: The bedload size will decrease and the bedload shape will become more rounded as the river flows downstream.

In order to investigate the changing bedload size and shape in the river you must visit 5 different sites from the upper course, middle and lower course.

Equipment: Metre ruler or callipers, copy of Powers Index of Roundness.

Photo of fieldwork on the Glenarm River
Image caption,
Fieldwork on the Glenarm River

The aim of this is to measure the size and shape of a sample of stones from each site visited in the river.

  • At each site along the river move across the river and select 20 different stones found at the river bed. You should use a random method of collection 鈥 put the metre ruler into the water and pick up whatever stone it is touching.

  • Use the ruler or callipers to measure the long axes of each stone (the longest two points on the stone) 鈥 this should be recorded in cm.

  • Use the Powers Index of Roundness to observe and compare the shape of the stone and record this.

Examples of the size and shape of a sample of stones.

Example of recording sheet for bedload size and shape:

Stone number12345678910
Long axis length
Shape of stone
Stone number11121314151617181920
Long axis length
Shape of stone

Secondary source - map of the Glenarm river area map to help locate the different sites.

Map of Glenarm.
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Processing and presenting data

Once fieldwork data has been collected, the information must be processed and presented. This is where you make sense of your findings and present them so that the reader can see them clearly

Presentation methods include:

Graph typesMapsPhotos and diagrams
Bar graphSketch mapSketch/diagram
HistogramOS map (annotated)Photograph (annotated)
Line graphChoropleth map
Scatter graph
Pie chart
Cross-section
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Hypotheses 1 and 2

Hyp 1: The cross-sectional area of the Glenarm River increases with distance from the source.

Data could be displayed in a number of ways:

  • Draw a series of cross-sections.

  • Present data using bar charts.

Bar graph showing channel depth and distance from river mouth.

The difference in the cross sectional area can be shown using a range of graphs for each site to show the depths measured across the width of the river.

Graph 2: The cross section area for Site 1 at the Glenarm River

Graph of a cross section area for Site 1 at the Glenarm River.

Hyp 2: The bedload size will decrease and the bedload shape will become more rounded as the river flows downstream.

Data can be displayed in a number of ways.

  • Bar chart to illustrate the average bedload shape or average size of stone at each site.

  • Scatter graph to measure the size and shape of the bedload.

Graph 3: Bar graph showing the average bedload size for the Glenarm River

Bar graph showing the average bedload shape for the Glenarm River
Graph 4: Scatter graph to show the relationship between bedload size and bedload shape for Site 2 in the Glenarm

Presentation methods:

A histogram is usually used to display continuous data (e.g. over time) and will have the blocks touching each other.

Bar graphs are usually used to display discrete or non-continuous data and each block will be separated with a space.

Scatter graphs usually involve two different variables and can be used to test the strength of the relationship (or correlation) between the two variables.

Once the graph has been drawn, the strength of the relationship can be tested using a line of best fit/trend line. This enables geographers to look for a positive, negative or no correlation between the two set of variables.

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Analysing and interpreting data

Analysing fieldwork data

Analysis involves describing results in each graph or resource.

  • Describe what data was used to help create the graph.

  • Quote figures. What are the highest result/lowest results?

  • Ensure units are used when quoting figures e.g. cm, m, km

  • Describe any patterns or trends.

  • What are the relationships that the graph presents?

Interpreting fieldwork data using knowledge of relevant theory and/or case studies

Data interpretation involves explaining the different reasons for the results/graphs that have been presented.

Explain the patterns and trends in the information and:

  • Go back to the hypothesis that is being tested.

  • Explain the results that help to either support, prove or disprove the stated hypothesis.

  • Refer to particular geographical theory and specifically note the role that the theory might have played in linking with the hypothesis.

  • Make good use of key terms relating to the theory.

Identifying anomalies in the fieldwork data

Describe and explain the potential reasons for any unusual results.

Hyp 1: The cross-sectional area of the Glenarm River increases with distance from the source.

Graph of data showing the cross-sectional area of the Glenarm River increases with distance from the source.

Data Analysis

  • Graph 1 shows the average channel depth as you move downstream.

  • The graph clearly shows that the average channel depth actually decreases as you move further upstream.

  • Site 4 is found high up in the upper course of the river and has an average depth of 0.21m whereas the deepest part of the river is found at Site 1, in the lower course where the depth is 0.62m on average.

Data Interpretation

  • Graph 1 shows that part of the depth measurements that help make up the cross-sectional area of the river are decreasing as we move upstream.

  • The amount of water in the river increases closer to the mouth of the river (site 1).

  • Geographical theory: Attrition, Hydraulic Action, Corrasion and Solution all work to different levels to increase the width and depth of the river channel.

  • There is a lot more water in the river by the lower course (site 1). There will be more potential for abrasion and hydraulic action which will continue to increase the cross-sectional area at this point.

  • At site 4 in the upper course, there is much less water so the erosion will usually only be eroding down and not across.

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Drawing conclusions and evaluating

Drawing evidenced conclusions:

  • Return to the stated hypotheses.

  • Write a statement about what evidence supports how strongly the hypothesis is found to be true or false.

  • Note which element of geographical theory is linked to the fieldwork.

  • Any unusual results should be acknowledged and, if possible, explained.

Evaluating the fieldwork

An evaluation involves:

  • Describing data collection methods, including any equipment used.

  • Identifying problems with data collection method.

  • Identifying limitations of the data collected.

  • Suggesting other data that might be useful.

  • Evaluating conclusions.

  • Suggesting how to extend the scope of the study.

The final evaluation should explain any problems encountered when collecting data:

  • Was the right equipment used?

  • Could the data collection have been improved?

  • Is there other equipment available that might have made data collection more efficient or accurate?

  • Should more data have been collected?

  • Should more sites have been visited?

  • Were the right sites visited?

  • Are there any other measurements that might have been useful?

Evaluating conclusions:

  • Were the conclusions a fitting reflection to the aims and hypotheses stated in the coursework?

  • Did the study help to answer questions on this?

  • Was this a good title/ aim in the first place?

  • Were the hypotheses specific enough to be able to be assessed easily?

  • Was the location for the study appropriate?

  • If you were to repeat this study again 鈥 how could you have improved the accuracy of the results?

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Preparing the fieldwork statement and table of data

The fieldwork statement must include:

  • a title

  • a statement of the aim and hypotheses that the candidate is testing

  • details of the location of the study (including a map, if appropriate)

The table of data must include:

  • primary data essential for investigating the aim of the study (include secondary data, if relevant)

  • data collected for all variables relevant to the aim

  • quantitative data (numerical scores) to allow for graphical representation representation (include qualitative data if relevant)

  • normal conventions, such as a title, and all variables clearly stated, along with their precise units of measurement

You are expected to use ICT to present your fieldwork statement and your table of data, at the end of the examination, attach your fieldwork statement and table of data to your script along with a completed cover sheet.

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