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A River Study Focusing O n River Processes At Dún na Rí

A River Study Focusing O n River Processes At Dún na Rí. By Chloe Mc Kenna. Aims. To investigate fluvial processes at two sites and compare and contrast them. Team Members. Chloe Ailbhe Caroline Anna. Equipment. Rubber gloves Wellies Pen and paper Clip board Map Results sheets

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A River Study Focusing O n River Processes At Dún na Rí

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  1. A River Study Focusing On River Processes At DúnnaRí By Chloe McKenna

  2. Aims • To investigate fluvial processes at two sites and compare and contrast them.

  3. Team Members • Chloe • Ailbhe • Caroline • Anna

  4. Equipment • Rubber gloves • Wellies • Pen and paper • Clip board • Map • Results sheets • Powerscale of roundness chart • Stop watch • Tennis balls • Metre stick • Measuring stick

  5. Objectives • To measure width and depth and calculate CSA ( cross sectional area ) • To measure velocity • To check bedload, shape and size • To observe both sites and take field notes • Draw sketches

  6. Preparation • To revise chapter on o.s maps • Practice drawing map sketches • Practice drawing sketches of rivers

  7. What we did ? • Cross Section Of River Channel • Using a measuring tape across from waters edge to the other side of river. Record results. • Using a measuring stick measure the depth of the river at 5 places across the river channel. Twice at each bank and once in the middle. Record results.

  8. Velocity/Speed Of The River • 2 members of the group went into the river and stood approximately 5 metres apart. • One person releases a tennis ball into the river while the other member on the bank records the length of time with a stopwatch, it takes the ball to float from one person to the other. • Record the result .This is done twice across the river.

  9. Load, Size & Shape • Using rubber gloves at 4/5 points across the river reach in and pick up the first pebble you touch. • Using chart for roundess of pebbles classify each pebble accordingly. • Record results.

  10. The End

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