Side
af
764
Forrige
Næste
12
Molesworth’s pocket-book
Levelling with the Mountain Barometer,
Corrected or Aneroid.
R = Reading of barometer at lower station in
inches. __
r = Reading of barometer at upper station.
T = Temperature of lower station in degrees
Fahr.
t — Temperature of upper station.
K = Correction due to T 4- t. (For value of
K, see Table below.)
II = Difference of upper and lower stations in
feet.
H - 60000 (log. R — log. r) K approximately.
Table showing Valves of K.
T+L K. T+t. K. T+t K. T+i. K- . T+t. K.
o — o o o 0
40 ■973 70 1-007 100 1’040 130 1-073! 160 1-106
42 •978 72 1’009 102 1'042 132 1-Otö 162 1-10»
44 •978 74 1-011 104 1'044 134 1 • 07»] 164 1-111
•980 76 1-013 106 1-047 136 1-080 166 1-113
48 •982 78 1-016 108 1*049 13» 1-082 168 1'115
50 •984 80 1-018 110 1-051 140 1’084 170 1-117
52 •987 82 1-020 112 1053 142 1-087 172 1120
54 •9B9 84 1-022 114 1-056 144 1’089 in 1 • 122
56 •991 86 1-021 116 1-058 146 1'091 17t> 1124
58 •993 88 1-027 118 1'060 148 1-093 1T8 1126
60 •996 90 1-029 120 1-062 150 1-096 180 1 • 129
62 •998 92 1-031 122 1-064 152 1-U9S 182 1-131
6-i 1-600 94 1-033 124 1-067 154 1-100 184 1-133
1'002 96 1-036 126 1*069 156 1-102 186 1-135
6» 1-004 98 1'038 128 1’071 158 1-1U4 1 188 1137