Calculate the stream gradient of Grape Creek in ft / mile. Use the index contour just above the

step 1 So in this question here, we want to solve for the length of B, C, or let's call it side A. To s

Calculate the stream gradient of Grape Creek in ft / mile....

Calculate the stream gradient of Grape Creek in $\mathrm{ft} /$ mile. Use the index contour just above the "m" in Temple Canyon for your initial spot. Measure the gradient to the index contour past the word Creek (the last contour before it reaches Arkansas River). The distance between these areas is $\sim 1.6$ miles (measured along the curving distance of the non-magnified stream). What is the gradient? a. $15 \%$ mile b. $100^{\circ} / \mathrm{mile}$ c. $125 \%$ mile d. $200^{\prime} / \mathrm{mile}$

Calculate the stream gradient of Grape Creek in $\mathrm{ft} /$ mile. Use the index contour just above the "m" in Temple Canyon for your initial spot. Measure the gradient to the index contour past the word Creek (the last contour before it reaches Arkansas River). The distance between these areas is $\sim 1.6$ miles (measured along the curving distance of the non-magnified stream). What is the gradient?
a. $15 \%$ mile
b. $100^{\circ} / \mathrm{mile}$
c. $125 \%$ mile
d. $200^{\prime} / \mathrm{mile}$

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Stream Gradient

Stream gradient is the rate of elevation loss along a stream, typically expressed as feet per mile. It is calculated by dividing the change in elevation by the horizontal distance over which that drop occurs, indicating how steeply the water flows.

Topographic Map Analysis

Topographic maps represent elevations using contour lines, which connect points of equal elevation. These maps are essential for determining elevation changes and calculating gradients, as they visually display the relief of the terrain.

Index Contours

Index contours are the emphasized or labeled contour lines found at regular intervals on a topographic map. They serve as reference points for determining elevations and are particularly useful when calculating the gradient over a specific section of a stream.

Curvilinear Distance Measurement

Curvilinear distance measurement refers to measuring the actual path along a curved feature, such as a stream, rather than as the straight-line distance. This approach ensures that the gradient calculation accurately reflects the actual distance water travels.

Transcript

Please give Ace some feedback