42 METEOROLOGICAL RESULTS OF LAST CRUISE OF CARNEGIE 
Table 46. Mean maximum and minimum Table 47. Hour of mean maximum and minimum 
vapor pressures for groups, vapor pressure by groups, Carnegie, 1928-29 
Carnegie, 1928-29 
——_—. Mean Mean 
Group Maximum © | Minimum ¢|Daily range © Group Maximum? | -MT | winimum 2 
mm mm mm h mm h mm 
I 8.484 7.484 1.00 I 16 8.30 7, 8 1.74 
I 14.18 10.90 3.28 I 12 13.20 3 12.12 
Ill 20.34 17.70 2.64 III 13 21.68 2 20.48 
IV 22; 61) 20. 43 2.18 IV 13 22.10 3 21.09 
Vv 23.82 21.36 2.46 Vv 13 23.29 20 22.23 
VI 22.02 19.71 2.31 VI 13 21.18 2 20.56 
vil vu 
(3) 15.47 14.15 1.32 {a 14, 15 15.23 20 14.91 
b 19.11 17.91 1.20 b 10 18.82 3 18.36 
VII 14.93 13.31 1.62 Vill 13 13.13 22 12.66 
Ix 14.39 12.36 2.03 Ix 15 14.00 2 12.89 
x 18.03 16.21 1.82 x 12 Ui 5 16.89 
XI 21.98 20.08 1.90 re pat 11 21.40 19 20.84 
xi 22.58 20.73 1.85 x 23 21.95 5 21.28 
XIII x10 
(3) 17.32 14.67 2.65 {3} 0 16.22 5 15.70 
(b 11.57 10.00 1.57 b 12 11.03 2 10.58 
XIV 9.07 8.33 0.744 XIV 1 8.79 18 8.56 
XV 11.49 9.66 1.83 XV 16 10.88 7 10.24 
XVI 12.90 11.42 1.48 XVI 0 12.46 11 11.79 
XVII XVII 
(a 15.29 13.61 1.68 (a) 9 15.01 18 14.30 
b 19.17 16.97 2.20 (b 3 17.84 6 17.28 
c 17.84 15.25 2.59 (c 6 16.92 2 16.59 
XVI0 21.69 19.88 1.81 XVIII 2 20.98 16 20.61 
Weighted a ee 
mean 17.972 16.115 1.857 ‘Periodic 
overcast but with light drizzling rain instead of showers 
as in the previous case. 
The mean values and times of daily maximum and 
minimum vapor pressures for the various Groups are 
daily range (0.3 mm) occurred on July 19, 1929, in the given in tables 46 and 47, which indicates that vapor 
Gulf of Alaska. It is significant that this period wasalso | pressures were highest in the Caribbean Group and low- 
4 Minimum values for all groups. » Maximum 
values for all groups. © Unperiodic. 
Table 48. Frequencies of hours of occurrence of maximum vapor pressure, Carnegie, 1928-29 



Local mean hours 

Trou 
cpp Se ee eee ts ae eo 
ah 1 1 1 coe sie wats ss 1 See nO 4 2 4 1 ade ais 
Ill site ao sys 2 2 ae a 2 in 5 1 1 
1V ae 1 see 1 5 6 6 4 3 “Ab 1 sae eee 
Vv aoe 1 1 ats HAG a we 2 1 1 Ree 1 2 1 
VI 1 2 1 1 3 1 1 2 1 1 coe 1 aes een 
VII 
3) 2 1 3 5 1 2 4 ee $0 sae 2 4 4 4 1 aes 2 1 
(b 1 a8 1 Set 1 1 1 1 4 1 1 cee oe as es 
Vill Stes 1 1 2 2 1 1 1 2 Gd0 600 ee 1 1 
IX 1 1 ven 1 Ae 1 1 4 3 2 eee 2 aes see 
x 1 wea 1 1 1 2 2 1 1 2 aes 1 ae 
XI 2 1 4 1 ots 2) 3 ASS 1 1 : 1 1 
XII 1 2 2 2 2 1 2 eee nas 2 2 2 1 
XII 
‘a 1 alse eels 5A 1 i 1 1 ASG Say 
XIV 2 1 1 1 2 1 1 i 1 1 3 4 ae: 1 1 2 
XV Bec one 2 1 aoe ‘ 1 re ses 1 1 
XVI 1 ae 3 1 2 aoe 
XVII 
(e 1 1 1 il 1 las 1 1 1 1 1 1 die 
b 1 1 2 1 1 1 3 Sas 1 wate oc 
(C) ree 1 1 1 2 one 2 1 dj 2 1 
XVI 2 1 1 1 2 2 2 2 nas 

