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Step # 1 -
Find width of the river in meters. To do this, use a tape measure, have
one person stand on one side of the river where the river begins and the
other person walk across the river where the water ends. WEAR BOOTS, and
bring a notebook . Write width of river in your notebook.
STEP 1 STEP 2 STEP 3 STEP 4 STEP 5 STEP 6 STEP 7 STEP 8 STEP 9 STEP 10 STEP 11 STEP 12 STEP 13 STEP 14 STEP 15 STEP 16
STEP # 2 - Every meter measure the depth useing centimeters. To do this take a meter stick and start walking across the river when you get to the one meter mark place the meter stick in the water ( make sure you are looking at the meter side of the stick ! ) call out to the person taking notes the depth of the river at the one meter mark. Continue these steps every meter of the river.
STEP#3 - Walk 50 meters down the river. To do this have one person hold the tape measure, standing in the same spot you found the width of the river. Now you take the beging of the measuring tape and walk down the river 50 meters when you get to 50 meters make a marker with a yard stick or a rock and paper towel something that will stay in place and you can see.
STEP#4- Take a tenis ball or a small object that floats ( the tenis ball has worked the best so far. )
STEP#5- At the spot where you found the width of the river divide into 4 seprate spaces ( you don't have to divide the width of the river by 4, just use your eyes. )
STEP#6- Place the ball in the first space have one person start timing it when the ball touchs the water. Have somone standing in the river at the 50 meter mark.
STEP#7- Take the ball out of the river and write down how long it took the ball to get to the 50 meter mark.
STEP#8- Repeat step 7,8 and 9 four times each time move your ball into the next space.
STEP#9- Take all depth measures and ADD all numbers together and DIVIDE by the width of the river ( this will give you the average number of centimeters )
STEP#10- Convert your answer from #9 centimeters to meters (1 meter equal 100 cm ) (1 centimeter equals .01 meters )
STEP#11- Multiply your answer from #10 ( converted meters ) by width so converted meters x width ( This will give you the area )
STEP#12- Calculate how many yards the ball traveled in one second once you get the answer multiply it by 60 EXAMPLE
STEP#13- Find the average
# of meters per minute by adding all four meters per minute
EXAMPLE
37.5m
46.15m
38.96m
27.27m
149.88
DIVIDE
4
37.47 Q = VA
STEP#14- Multiply your
answer from #11 by average # of meters per minute (This will give you the
water flow of the river) Remember Q = VA