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Den (on the) 30 Juli (oj July) 1’’ a.m., var Vindhastigheden (the velocity of the wind was) 4.7.
„ „ 15 Aug. (of Aug.) „ „ „ 5.0.
Forskjel (Difference) — 0.9.: 16 = — 0.06 = c.
For den hele Gruppe bliver c = — 0.m25.
Fejlen i Observationsklokkeslettet ved Middag er størst,
— 33.m0, den 8de August, paa Vejen fra Sydkap vestover.
Den har sin næststørste Værdi, -f- 24.m8, den 12te August.
Summen af positive Fejl er -f I94.m4, fordelt paa 14 Dage,
eller + 13.ro8 pr. Dag. Summen af negative Fejl er —318.m3,
fordelt paa 22 (1 Dag under Beeren-Eiland) Dage. eller
— 14.*"5 pr. Dag. Den gjennemsnitlige Fejl bliver — 123.m9,
fordelt paa 37 Dage., eller — 3.m35 pr. Dag.
For the whole group c — — 0.™25.
The error in the hour of observation at noon was
greatest. — 33."O, August 8th, on the passage west from
Cape South. Its next greatest value, -J- 24.m8, occurred
August 12th. The sum of the positive errors is + 194."’4,
distributed over 14 days, or + 13.m8 per day. The sum
of the negative errors is — 318.m3, distributed over 22
days (1 day off Beeren Eiland), or — 14.m5 per day. The
average error is accordingly — 123.m9. distributed over 37
days, or — 3.m35 per day.
a. m.
Klokkeslet iA zh 3’’ 4’* 5* 6a 7* 8a qh ioA nA 12’’ Hour.
Corr. Obs.media 8.08 7.90 7.93 8.05 8.16 7.86 8.22 8.04 8.01 7.72 7.76 7.83 Corr. obs. means..
Afv. fra Dagsmedium 0.06—0.12—0.09 0.03 0.14—0.16 0.20 0.02—0.01—0.30—0.26—0.19 Diff. from daily mean.
Beregnet Afvigelse 0.04 0.04 0.04 0.04 0.03 0.00—0.03—0.07—o.io —0.13—0.14—o. 14 Computed difference.
Forskjel: Obs. — Ber. 0.02—0.16—0.13—o.oi o.ii—0.16 0.23 0.09 0.09–0.17—0.12—0.05 Diff.: obs. — comp.
p. m.
Corr. Obs.media 7.76 8.03 8.35 8.06 8.16 7.80 8.04 8.09 8.11 8.22 8.25 8.09 Corr. obs. means.
Afv. fra Dagsmedium —0.26 0.01 0.33 0.04 0.14—0.22 0.02 0.07 0.09 0.20 0.23 0.07 Diff. from daily mean.
Beregnet Afvigelse—0.11 —0.07—0.03 0.02 0.07 0.09 o.ii 0.10 0.09 0.08 0.06 0.05 Computed difference.
Forskjel:Obs.—Ber.- 0.15 0.08 0.36 0.02 0.07—0.31—0.09—0.03 0.00 0.12 0.17 0.02 Diff.: obs. comp.
Formel (formula): W, = 8.n’<)2 + O.« 103 sin (116° 8/6 + t) — 0.m047 sin (98° 6’ + 21).
Figuren Pl. III, Vindens Hastighed 187H viser den
observerede og den beregnede Curve. MF = + 0.W11.
Af Formelen beregnes:
Maximum: +0."11, 7A 38m p.m.
Minimum: —0.™15. 11A 12m a.m.
Medium indtræffer: GA 9m a. m. og 3A 35™ p.m.
Amplitude: 0.™26.
Den observerede Curve antyder et Minimum, — 0.’"3,
omkring Kl. 11 Formiddag, et Maximum, -f- 0.™24, Kl.
3—4 Eft., et Minimum, — l.m2, Kl. 6 Eftermiddag, og et
Maximum, + 0.m2, Kl. 10—11 Aften. Curven faar
saaledes mere Lighed med de tidligere Aars, der have
Ffter-middagsminimum og Nattemaximum.
The figure in’Pl. IH, Velocity of the Wind, 1878.
shows the observed and the computed curve. MF = + 0."’11.
From the formula were computed —
Maximum -f().rall, 7A 38™ p.m.
Minimum — 0.m15, 11A 12™ a.m.
The Mean occurs at 6A 9™ a.m. and 3A 35m p.m.
Total Range: 0.m26.
The observed curve gives a minimum, — 0.m3, about
11 a.m., a maximum, -{- 0.™24, at 3—4 p.m., a minimum,
— l.m2, at 6 p.m., and a maximum, + 0.m2, at 10—11
p.m. The curve exhibits accordingly greater resemblance
to that for the preceding years, which have an afternoon
minimum and a night maximum.
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