P PEin2010 Well-known member Joined Aug 29, 2010 Messages 86 Reaction score 0 Location California Oct 6, 2010 #1 I don't know how to read the graph in this problem! Please see attached. Any help is appreciated!
C civilized_naah Well-known member Joined Jun 30, 2009 Messages 409 Reaction score 28 Location Maryland Oct 6, 2010 #2 Visually interpolate a line (between curve 1 and curve 2) to represent P = 27 in Horizontal axis reads duration = 2.5 hrs. Go up to line (interpolated curve) and then pivot to vertical axis to read rainfall depth = 1.5 inches. Rainfall depth of 1.5 inches over a 2.5 hour storm duration = 1.5/2.5 = 0.6 in/hr
Visually interpolate a line (between curve 1 and curve 2) to represent P = 27 in Horizontal axis reads duration = 2.5 hrs. Go up to line (interpolated curve) and then pivot to vertical axis to read rainfall depth = 1.5 inches. Rainfall depth of 1.5 inches over a 2.5 hour storm duration = 1.5/2.5 = 0.6 in/hr
