APPENDIX C 65 



180 150 120 90 60 30 



30 60 90 120 150 180 



180 150 120 90 60 30 30 60 90 120 150 180 



Figure C-3. Percent of time gradient > (N/fcm): August. 



90 60 



180 150 120 90 60 30 



60 90 120 150 180 



Figure C-4. Percent of time gradient > (S/km): November. 



