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what is the formula for slope correction. When the line neither rises nor falls then we claim that it has a slope of zeroThis is in fact the case of a horizontal line where it extends infinitely to its left or right but without any sign of rising or falling. L actual length of tape.
Slope m yB yA xB xA Slope m y B - y A x B - x A. Slope m 10 2 7 3 Slope m 10 - 2 7 - 3. Slope Change in y Change in x y 2 y 1 x 2 x 1.
If l is the length of any one slope and h the difference in height between the ends of the slope the slope correction l- l 2-h 2 l l 1 h 2 2l 2 h 4 3l 4 etc.
In sloped terrain the original plot radius needs to be multiplied by the slope correction factor. R_ slopefrac r sqrt mbox cos alpha That means. Y 2 y 1. If l is the length of any one slope and h the difference in height between the ends of the slope the slope correction l- l 2-h 2 l l 1 h 2 2l 2 h 4 3l 4 etc.