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Gradient (or slope) The rate of change in field values between two points on a field map.

Gradient (or slope) The rate of change in field values between two points on a field map. How gentle or steep the land is. Steep slope – lines are closer together. Gentle slope – lines are farther apart. Formula for Calculating Gradient. (Formula from the ESRT, pg 1).

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Gradient (or slope) The rate of change in field values between two points on a field map.

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  1. Gradient (or slope) • The rate of change in field values between two points on a field map. • How gentle or steep the land is Steep slope – lines are closer together Gentle slope – lines are farther apart

  2. Formula for Calculating Gradient (Formula from the ESRT, pg 1)

  3. Gradient examples - • A hiker gains 250 meters in altitude by climbing a mountain from the valley. The peak is 5 km from the valley. What is the gradient of the mountain side? • (First copy the formula from your ESRT)

  4. Gradient examples - Change in field value = 250 meters Distance = 5 kilometers 250 meters 5 kilometers Gradient = Gradient = 50 m/km

  5. Closure: Complete worksheet Gradient Problems.

  6. Answers: 1. 2. 160 ft. – 142 ft. = 300 miles =.06 ft/mile

  7. 3. 65 ft. – 58 ft. = 42 miles =.167 ft/mile

  8. 4. 750 miles = 1500 miles =.5 mile/mile

  9. 5. 298 ft. – 292 ft. = 900 miles =.0067 ft/mile

  10. 6. 400 ft. – 300 ft. = 4 miles = 25 ft/mile

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