GIS Data Analysis Question:
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What is the difference between slope and aspect?

Answer:

► 1. Slope is the gradient directly down the fall line, while aspect is the direction of the fall line relative to north.
► 2. Slope is the direction of the fall line, while aspect is the gradient of the fall line.
► 3. Slope is the distance down the fall line from the top of the slope to its bottom, while aspect is the percentage gradient of this line averaged over its full distance.
► 4. Slope is the gradient of the fall line relative to vertical, while aspect is the direction of the fall line relative to the line of greatest slope.

Slope is the gradient directly down the fall line, while aspect is the direction of the fall line relative to north.

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