// HydroCAD IDF file // Copyright (c) 2007 HydroCAD Software Solutions LLC // The following name should match the file name, with the // comment used for any additional information. name=FL-DOT Zone 11 comment=Florida DOT Hydrology Handbook, January 2004 // Set parameter units depthunits=inches timeunits=hours duratunits=minutes // Set allowed duration range duration=8 180 // Now define coefficients for each event: // Coef3= a b c d 2 3 // Intensity is given by: I = a + bx + cx + dx // where: x = ln( duration ) event=2-Year coef3= 10.09256 -2.25031 0.01661 0.01544 event=3-Year coef3= 9.30810 -1.21537 -0.25504 0.03590 event=5-Year coef3= 9.02699 -0.47796 -0.46784 0.05263 event=10-Year coef3= 10.23814 -1.23242 -0.27724 0.03685 event=25-Year coef3= 11.68811 -1.61200 -0.25239 0.03706 event=50-Year coef3= 9.94772 0.31312 -0.73271 0.07222