44 
METEOROLOGICAL RESULTS OF LAST CRUISE OF CARNEGIE 
Table 52. Results of Fourier analyses of diurnal variation of vapor pressure 
for groups, Carnegie, 1928-29 

Coefficients 
Group Ll we Seo 
mm 
I -0.098 +0.026 -0.009 -0.193 +0.039 -0.015 
II -0.354 +0.189 +0.018 -0.151 -0.100 -0.095 
Ill -0.392 +0.095 +0.028 -0.374 +0.014 +0.057 
IV -0.341 +0.098 -0.011 -0.064 +0.062 -0.013 
V -0.317 + 0.037 + 0.095 + 0.092 +0.055 -0.035 
VI -0.165 +0.015 +0.024 -0.058 -0.039 -0.046 
VII 
8} -0.081 -0.019 -0.009 +0.021 +0.050 -0.017 
b) -0.102 +0.127 -0.009 +0.047 +0.010 -0.012 
Vil -0.179 +0.075 +0.015 +0.025 -0.013 +0.031 
Ix -0.305 + 0.036 +0.058 -0.313 +0.028 -0.067 
x -0.253 +0.071 +0.013 -0.032 -0.064 +0.016 
XI -0.102 +0.066 +0.044 -0.004 -0.024 +0.017 
XII + 0.008 +0.111 +0.012 -0.177 -0.053 -0.005 
XII 
+ 0.004 + 0.118 +0.073 -0.010 +0.061 +0.047 
b) -0.085 +0.038 +0.014 +0.017 -0.032 -0.029 
XIV + 0.048 +0.068 +0.013 +0.008 +0.006 -0.006 
XV +0.013 -0.007 -0.001 -0.211 +0.014 -0.023 
XVI +0.114 -0.104 +0.071 -0.051 + 0.045 -0.034 
XVII 
(a) -0.079 +0.037 +0.068 +0.062 -0.031 -0.053 
(b) -0.053 +0.089 -0.029 -0.020 +0.169 +0.048 
(c) -0.058 +0.029 +0.005 +0.101 + 0.034 -0.064 
XVIII -0.006 +0.130 + 0.036 +0.101 -0.064 +0.040 
rou —— 
. c2 $3 
mm mm mm ° s ? 
I 0.216 0.047 0.017 206.9 Bool 211.0 
II 0.385 0.214 0.097 246.9 117.9 169.3 
li 0.542 0.096 0.063 226.3 81.6 26.2 
IV 0.347 0.116 0.017 280.6 Bi fat | 220.2 
V 0.330 0.066 0.101 286.2 33.9 110.2 
VI 0.175 0.042 0.052 250.6 159.0 152.4 
Vil 
{3} 0.084 0.054 0.019 284.6 339.2 207.9 
b 0.112 0.127 0.015 277.9 99.8 25.8 
VIiil 0.181 0.076 0.034 224.3 52.1 139.1 
Ix 0.437 0.046 0.089 262.8 132.0 39.1 
x 0.255 0.090 0.021 272.2 110.0 68.9 
XI 0.102 0.070 0.047 294.7 85.5 216.9 
XII 0.177 0.123 0.013 177.4 1555 112.6 
xII 
3 0.011 0.133 0.087 158.2 62.7 Slee 
b) 0.087 0.050 0.032 281.3 130.1 154.2 
XIV 0.049 0.068 0.014 80.5 85.0 114.8 
xXV 0.211 0.016 0.023 176.5 333.4 182.5 
XVI 0.125 0.113 0.079 114.1 293.4 115.6 
XVII 
3} 0.100 0.048 0.086 308.1 130.0 127.9 
b 0.057 0.191 0.056 249.3 27.8 328.9 
c) 0.122 0.045 0.064 320.1 40.5 7525 
XVIII 0.101 0.145 0.054 356.6 116.2 42.0 
se a elie ee cae] 
mm mm mm mm mm 

curves of mean hourly vapor pressure between the Diurnal Variation of Vapor Pressure for all Days 
Groups even when corrected for noncyclic changes, 
pee Only by using the observations of a large number of 
which would indicate that the diurnal variation of this 
days can a true picture of the diurnal variation of vapor 
element is so small that it is usually masked by chance | pressure over ocean surfaces be formed. For this rea- 
variations. Only in those groups which contain a large son, the mean hourly values of vapor pressure for ail 
number of days of observations do the diurnal curves of days of the cruise have been computed and the results 
vapor pressure appear to be consistent. presented in figure 31. It would be expected that the di- 
