Table 9 



Statistical Analysis of Historical Data for Chosen Parameters 

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



One- 

 Degree 

 Quadrangle 



3kNkQVf 

 35N47W 

 35N46V7 



34n48w 

 35N4TW 

 35n48w 

 35Kit8w* 



35N47W 

 35Wlt8w 

 35NiiSw* 



34n47W 

 34wit8w 

 35Ni^7W 

 35NU8W 

 35Nl^* 



3i^NI^7W 

 3i^N48w 

 35Ni^7W 

 35Ni+8w 

 35NU8W* 



3^n47W 

 34n48w 

 35N47W 

 35Ni»6w 

 35Ni^* 



Wumher 

 of Years Maximum 

 of Data Mean 



3to 

 390 



384 

 385 



387 

 373 

 313 

 3hh 



327 

 320 



129 

 llto 

 105 

 203 

 205 



83 



86 



100 



132 

 112 



51 

 67 

 58 

 67 

 67 



Minimum 

 Mean 



JANUARY 



3^0 

 190 



300 

 100 



FEERUAEY 



250 

 210 



ko 



77 



MARCH 



60 

 i^3 



APRIL 



116 

 25 

 53 



ko 



58 

 MAY 



72 



86 

 93 



51 

 JUNE 



27 

 38 

 45 

 41 

 25 



Range 



200 



84 

 285 



137 

 163 

 273 

 267 



267 

 277 



13 

 115 



52 

 163 

 l47 



11 



7 



84 

 61 



24 

 29 

 13 

 26 

 42 



Maximum 



Standard 



Error 



10.0 



48.1 

 53.9 



100.6 

 55.9 

 62.3 



110.2 

 63.4 



31.4 



52.7 

 34.0 

 52.4 

 4o.3 



35.9 

 7.9 



37.3 

 9.1 



10.1 



7.3 



10.9 



6.8 



7.7 

 10.7 



Maximum 



Percentage 



Standard 



of 



Obs. > 



Deviation Max, 



, BT Depth 







92 



20.0 





77 



>- 





100 



127.4 





66 



161.8 





73 







88 



174.3 





82 



137.3 





93 



153.0 



190.8 

 141.8 



91.4 

 126.5 

 137.2 

 128.3 



122.0 



25.1 

 111.8 



99.6 

 87.1 



28.2 

 43.5 

 28.6 

 34.2 

 53.3 



100 



29 

 61 



59 

 71 

 61 



35 

 



22 

 6 

 6 



20-minute square centered at this location 



37 



