







10 





20 





30 





140 





50 



D 



60 



E 



70 



P 



80 



T 



90 



H 



100 





120 



(Ml 



150 





200 





250 





300 





000 





500 





N MI 





KB 



MEAN XBT TEMPERATURE. DEG-C 01 DECEMBER 



25.1 20.8 20.5 20.2 23.9 23.7 23.2 22.6 22.2 21.3 2C.7 20.0 19.8 19.1 Id. 3 17.7 17.1 16.3 1U.9 13.6 



25.1 21.8 21.5 20.2 23.9 23.7 23.1 22.6 22.2 21.3 2C.7 20.1 19.8 19.1 18.3 17.7 17.1 16.3 10.9 13.6 



25.1 20.8 20.5 20.2 23.9 23.7 23.2 22.6 22.2 21.3 20." 20.0 19.8 19.1 18.3 17.6 17.1 16.3 10.9 13.6 



25.1 20.8 20.5 20.2 23.9 23.7 23.2 22.6 22.2 21.3 20.8 20.0 19.8 19.1 18.3 17.6 17.3 16.0 10.8 13.0 



25.0 20.8 20.5 20.2 23.9 23.7 23.2 22.6 22.2 21.3 20. « 20.0 19.9 19.2 18.0 17.7 17.3 16.0 10.6 12.9 



25.0 20.8 20.5 20.2 20.0 23.7 23.2 22.7 22.2 21.3 20.6 20.3 19.8 19.1 18.3 17.0 17.0 16.2 10.2 11.9 



25.0 20.9 20.3 20.0 23.7 23.0 23.0 22.5 22.0 21.1 20.0 20.0 19.0 18.6 17.7 16.0 16.2 15.2 13.2 10.9 



25.0 20.8 23.9 23.7 23. C 22.7 22.7 22.0 21.0 20.0 19.8 19.3 18.6 18.0 1b. 8 15.3 15.3 10.1 12.2 10.3 



20.0 20.3 23.5 23.1 22.2 22.0 21.9 21.3 20.7 19.6 19.0 18.7 17.7 17.3 16.0 10.7 10.3 13.1 11.3 9.9 

 23.5 23.6 22.9 22.0 21.0 21.3 20.9 20. b 19.9 18.8 18.9 la.1 17.1 16.6 15.5 10.0 13.3 12.3 10.8 9.7 

 22.8 22.8 22.0 21.7 20.8 20.6 20.1 19.9 19.3 16.3 18.2 17.5 16.7 16.0 15.0 13.5 12.8 11.7 10.0 9.0 

 21.5 21.0 21.3 20.6 19.9 19.5 19.0 18.9 18.2 17.0 17.3 16.8 16.1 15.3 10.3 12.7 12.0 10.8 9.7 9.0 



20.1 19.9 2C.0 19.3 18.6 18.2 17.9 17.7 16.9 16.2 16.0 15.0 10.7 13.8 12.8 11.3 10.7 9.9 9.1 8.6 

 17.3 17.3 17.7 16.7 16.1 15.9 15.0 15.0 10.2 13.7 12.9 12.6 12.1 11.3 10.6 9.7 9.3 8.9 8.0 8.0 

 10. 10.2 10.7 11.9 13.5 13.0 12.9 12.8 12.2 11.7 11.1 10.9 10.6 10.0 9.5 8.9 8.5 8.1 7.7 7.0 

 11.5 11.6 12.0 11.8 11.6 11. b 11.2 11.2 10.8 1C.5 1C.0 9.8 9.6 8.9 8.0 8.0 7.7 7.3 7.2 6.8 



8.0 8.7 8.8 9.0 9.0 9.0 8.8 8.7 8.6 8.0 7.8 7.6 7.6 7.2 6.7 6.5 6.0 6.2 6.3 6.0 



6.6 6.6 6.6 6.7 6.8 6.8 6.7 6.7 6.7 6.3 6.1 6.1 6.0 5.9 5.7 5.6 5.5 5.6 5.6 5.0 



50 150 250 350 050 550 650 750 850 950 1C50 1150 1250 1350 1050 1550 1650 1750 1850 1950 



93 278 063 609 830 1019 12^5 1390 1575 1761 1906 2131 2317 2502 2687 2872 3058 3203 3028 3610 



DISTANCE 



MERN XBT TEMPERATURE 9 DEG-C MID-DECEMBER 



20.5 20.3 23.8 23.6 23.2 22.9 22.0 22.0 21.5 2C.5 2C.0 19.6 18.9 18.3 17.0 17.0 16.3 15.5 10.3 12.9 



20.5 20.3 23.8 23.6 23.2 22.9 22.0 22.0 21.5 2C.0 2C.0 19.5 18.9 18.3 17.0 17.0 16.3 15.6 10.3 12.9 



20.5 20.3 23.8 23.6 23.2 22.9 22.0 22.0 21.5 20. 20.1 19.5 18.9 18.3 17.0 16.9 16.3 15.6 10.3 12.8 



20.5 20.2 23.8 23.6 23.2 22.9 22.0 22.0 21.5 2C.0 2C.0 19.6 18.9 18.0 17.5 16.9 16.0 15.7 10.3 12.8 



24.5 20.3 23.9 23.7 23.2 23.0 22.0 22.0 21.5 20.5 20.1 19.6 19.0 18.5 17.6 16.8 16.5 15.7 10.2 12.5 



20.5 20.3 23.9 23.6 23.3 23.0 22.5 22.1 21.5 2C.5 2C.0 19.7 19.1 18.5 17.7 16.9 16.5 15.7 10.1 11.9 



20.6 20.3 23.8 23.6 23.1 22.9 22.6 22.1 21.6 20.5 20.0 19.6 19.1 18.0 17.5 16.0 16.1 15.1 13.0 11.2 

 20.6 20.3 23.7 23.5 22.8 22.5 22.5 21.8 21.0 2C.2 19.8 19.2 18.6 18.1 16.9 15.5 15.5 10.3 12.5 10.5 

 20.2 23.9 23.0 23.1 22.2 22.0 21.9 21.3 20.9 19.6 19.5 18.8 17.9 17.5 16.2 15. C 10.0 13.3 11.6 9.9 

 23.5 23.3 23.0 22.5 21.5 21.0 21.0 20.8 20.2 19.1 19.2 18.3 17.0 16.9 15.7 10.2 13.3 12.0 11.0 9.7 

 22.9 22.6 22.5 21.9 21.0 20.8 20.2 20.0 19.6 18.5 18.6 17.7 16.9 16.2 15.0 13.7 12.7 11.8 10.6 9.5 

 21.5 21.2 21.2 20.6 20.0 19.6 19.0 18.9 18.0 17.0 17.6 16.9 16.1 15.3 10.3 12.9 11.9 10.9 9.9 9.1 



20.1 19.7 19.9 19.2 18.6 18.2 17.8 17.5 17.0 16.1 16.1 15.6 10.7 13.9 12.8 11.5 10.6 9.9 9.2 8.7 



17.2 17.2 17.6 16.6 16.1 15.8 15.3 15.2 10.0 13.5 13.1 12.7 12. C 11.0 10.5 9.8 9.3 8.9 8.5 8.0 

 13.9 10.1 10.7 13.7 13.0 13.3 12.8 12.6 12.2 11.7 11.1 10.9 10.5 10.0 9.5 8.9 8.5 8.1 7.8 7.0 

 11.0 11.5 12.0 11.7 11.5 11.5 11.2 11.2 10.9 1C.5 9.9 9.8 9.5 9.0 8.0 8.0 7.7 7.3 7.2 6.9 



8.3 8.6 8.8 8.9 8.9 8.9 8.8 8.7 8.6 8.3 7.8 7.7 7.5 7.2 6.7 6.5 b.O 6.2 6.2 6.1 



6.6 6.6 6.6 6.7 6.9 6.8 6.7 6.6 6.6 6.0 6.? 6.2 5.9 5.8 5.7 5.6 5.5 5.6 5.6 5.5 



50 150 250 350 050 550 650 750 850 950 1C50 1150 1250 1350 1050 1550 1650 1750 1850 1950 



93 278 063 609 810 1019 12"5 1390 1575 1761 1906 2131 2317 2502 2687 2872 3058 3203 3028 3610 



DISTANCE 











10 





20 





30 





00 





50 



D 



60 



E 



70 



P 



80 



T 



90 



H 



100 





120 



(M) 



150 





200 





250 





300 





000 





500 





N MI 





KM 



35 



* United Stales Government Printing Office: 1979—697-366/74 



