Table 7. 



REDUCTION OF TEMPERATURE TO SEA LEVEL. 



ENGLISH MEASURES. 



Rate of 

 decrease 



of 



temper- 

 ature. 



for 

 every 



Keet. 

 200 



205 

 210 



215 

 220 



230 



240 

 250 

 260 



270 



280 



290 

 300 

 310 

 320 



340 



360 

 380 

 400 

 420 



440 



460 

 480 

 500 

 520 



540 



560 

 580 

 600 

 620 



650 



700 

 750 

 Soo 

 850 



900 



DIFFERENCES BETWEEN THE TEMPERATURE AT .\NY AI.TITUDE 



AND AT SEA LEVEI/. 



F. 



c)?50 



0.49 

 0.48 

 0.47 

 0.45 



0.43 



0.42 

 0.40 



0.38 



0-37 



U.36 

 0.34 

 0-33 

 0.32 

 0.31 



0.29 

 0.28 

 0.26 

 0.25 

 0.24 



o. 23 

 0.22 



O. 21 

 0.20 



o. 19 



o. 19 

 o. 18 



0.17 



0.17 

 o. 16 



"•1.5 

 o. t4 

 0.13 

 o. 12 

 0.12 



(I. I r 



ALTITUDE IN FEET. 



100 200 300 



400 500 600 700 i 800 



F. 

 i?oo 

 0.98 

 "•95 



"•93 

 0.91 



0.87 

 0.83 

 0.80 

 0.77 

 0.74 



0.71 

 0.69 

 0.67 

 0.65 

 0.62 



0.59 

 0.56 



0.53 

 0.50 

 0.48 



0.45 



"•43 

 0.42 

 0.40 

 0.38 



"•37 

 0.36 



0.34 

 0.33 

 0.32 



0.31 

 0.29 

 0.27 

 0.25 

 0.24 



f). 22 



■50 

 .46 



•43 

 .40 



•36 



•30 

 •25 

 .20 



•^5 

 .11 



.07 



•03 



.00 



0.97 



0.94 



0.88 

 0.83 

 0.79 



0.75 

 0.71 



0.68 

 0.65 

 0.62 

 0.60 

 0.58 



0.56 



0.54 

 0.52 

 0.50 

 0.48 



0.46 



"■43 

 0.40 



0.37 

 0.35 



0.33 



F. 

 2?00 



•95 

 .90 

 .86 

 .82 



•74 

 .67 

 .60 



•54 

 .48 



•43 

 •38 



■33 

 .29 



•25 



.18 

 .11 



■05 

 .00 



0.95 



0.91 

 0.87 

 0.83 

 0.80 

 0.77 



0.74 

 0.71 

 0.69 

 0.67 

 0.65 



0.62 

 "•57 



0.53 

 0.50 

 0.47 



0.44 



F. 

 2?50 



2.44 

 2.38 



2-33 

 2.27 



2. 17 



2.08 



2.00 



.92 



•85 



•79 

 ■73 

 .67 

 .61 

 ■56 



•47 

 •39 

 •32 

 •25 

 •19 



.14 

 .09 

 .04 

 .00 

 0.96 



0.93 

 0.89 

 0.86 

 0.83 

 0.81 



0.77 

 0.71 

 0.67 

 0.62 



0.59 



0.56 



F. 

 3?oo 



2^93 

 2.86 

 2.79 

 2.73 



2.61 

 2.50 

 2.40 

 2.31 

 2.22 



2.14 



2.07 



2.00 



•94 



■87 



.76 

 .67 

 •58 

 • 50 

 •43 



■36 

 ■30 

 ■25 

 .20 



■15 



. II 

 .07 



•03 

 .00 



0.97 



0.92 

 0.86 

 0.80 



0.75 

 0.71 



0.67 



F. 

 3-50 

 3^41 



3^33 

 3.26 



3.18 



3-04 

 2.92 

 2.80 

 2.69 



2^59 



2.50 

 2.41 



2.33 

 2.26 

 2.19 



2.06 



•94 

 .84 



■75 

 .67 



•59 

 • 52 

 .46 

 .40 

 •35 



■30 



■ 25 

 .21 



■ 17 

 •13 



.08 

 .00 



o^93 

 0.87 

 0.82 



0.78 



1000 2000 3000 4000 5000 



5.00 1 10:00 1 



4.88, 

 4.76 j 

 4-65 j 

 4-55 I 



4^35 1 

 4^17 I 

 4.00 



3^85 

 3^7o 



3-57 

 3^45 

 3^33 

 3^23 

 3.12 



2.94 

 2.78 

 2.63 

 2.50 

 2.38 



2.27 

 2.17 

 2.08 

 2.00 



9.76 



9^52 



9^30 

 9.09 



F. 

 I5-00 

 14.63 

 14.29 

 13-95 

 13-63 



8.70 ! 13.04 

 8.33 j 12.50 

 S.oo ' 12.00 

 7^69 i 11.54 



7.41 ' II. TI 



7.14; 

 6.90 

 6.67 

 6.45 I 

 6.251 



5.88 j 

 5-56 j 

 5^26 

 5.00! 

 4.76 j 



4-55 

 4^35 

 4.17 

 4.00 



10.71 



10-34 



10.00 



9.68 



937 



8.82 



8^33 

 7.89 



7-5" 

 7.14 



6. 82 

 6.52 

 6.25 

 6.00 



5-77 



5.56 

 5^36 

 5-17 

 5.00 



4.84 



4.62 

 4.29 

 4.00 

 3-75 

 3-53 



3-33 



F. 

 20?00 



i9^5i 

 i9^"5 

 18.60 

 18.18 



17-39 

 16.67 

 16.00 



15^38 

 14.81 



14.29 



13-79 

 13^33 

 12.90 

 12.50 



IT. 76 

 II. II 



10.53 

 10.00 



9^52 



9.09 

 8.70 



8.33 

 8.00 

 7.69 



7.41 

 7.14 

 6.90 

 6.67 

 6.45 



6.15 

 5^71 

 5-33 

 5.00 

 4.71 



4-44 



F. 



25?oo^ 



24-39I 



23.811 



23.26^ 



22.721 



21.74 

 20.83^ 



20.00 



19.23 



i8.52| 



I7.S6 

 17.24; 

 16.67, 



16.13! 

 15.62] 



14.71 



13-89 



13.16 



12.50 



11.90 



lr.36; 



10.87 



I0.42j 



10.00 

 9.62 



9.26, 



8. 93 1 

 8.62; 



8-33' 

 8.06^ 



7.691 



7-14! 

 6.67 

 6.25 

 5.88 



5-56 



Tabular values are to be added to the observed temperature to obtain 

 the temperature at sea level. 



Smithsonian Tables. 



10 



