Table h 

 Statistical Analysis of Historical Data for Chosen Parameters 

 Depth of the Upper Bound of the Maximum Gradient (ft) 



One- 



Number 









Maxinami 



Maximiim 



Degree 



of Years 



Maximum Minimum 





Standard 



Standard 



Quadrangle 



of Data 



Mean 



Mean 

 JAMIARY 



Range 



Error 



Deviation 



34wli-TW 

 3i<-Nit8w 

 35Ni^TW 

 35Ni»6w 

 35NWw* 



3 

 k 



3 

 8 

 8 



390 

 390 



322 

 31^6 



li'Ji'BRUARY 



68 



12.2 

 9.8 



40.5 

 36.3 



3to48w 

 35Wi^7W 

 35Ni^8w 

 35NU8W* 



6 

 3 

 7 

 7 



360 

 313 



360 



271 



MARCH 



42 



6^8 



20.3 



34w48w 

 35N47W 

 35N48W 

 35Nl^8w* 



1 

 h 

 6 

 7 



— 



APRIL 



— 



~ 



— 



34Ni|-7W 

 3ltNit6w 

 35Nij-7W 

 35H^W 

 35N48W* 



2 

 3 

 3 

 7 

 7 



92 

 133 

 117 



92 



100 



72 



MAY 



33 

 45 



13.7 

 37.1 

 4o.o 



43I4 

 64.2 

 56.6 



34n47W 

 3tol»8w 

 35N^TW 

 35Ni<6w 

 35n48w* 



2 

 2 



5 



8 



9 



85 



92 



liK) 



143 



218 



70 

 89 

 80 

 71 

 77 



JUKE 



15 



3 



60 



72 



141 



14.4 

 14.4 

 17.7 



22.6 



29.8 



49.8 

 65.0 

 50.1 

 83.4 

 98.9 



34k47W 

 34n1»8w 

 35N47W 

 35NWw 

 35Nit8w* 



3 

 h 



3 

 6 

 6 



71 



82 



86 



116 



111 



i^2 

 52 

 Ih 

 56 

 63 



29 

 30 

 12 



60 



48 



18.1 

 l4.7 

 31.0 

 12.7 

 10.7 



82.8 

 44.1 

 98.0 

 74.0 

 66.0 



* 20-minute square centered at this location 



27 



