. Smithsonian miscellaneous collections. Fig. 32.—Pressure forecasted from a combination of meteorological cycles. APRIL MAY JUNE JULY AUGUSTZ 9 16 25 30 7 lA 21 28 4 11 18 25 2 9 16 23 30 6 13 20 27 3 F.+ 10* 0 -10 7 N EW Y OR K \ \\ ) 1t \\ / / V \ I / / \\ / / t n. ^ \ I /// y 1 \ i > , 1 \ / V ^ FORECASTED _ Fig. Z2)-—Weekly temperatures 1929. 48 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 82 mean a revolution in present methods of weather forecasting. Theforecasting of pressure and temperature will be made in much thesame way that ocean tides are now predicted, except that the periodsus
. Smithsonian miscellaneous collections. Fig. 32.—Pressure forecasted from a combination of meteorological cycles. APRIL MAY JUNE JULY AUGUSTZ 9 16 25 30 7 lA 21 28 4 11 18 25 2 9 16 23 30 6 13 20 27 3 F.+ 10* 0 -10 7 N EW Y OR K \ \\ ) 1t \\ / / V \ I / / \\ / / t n. ^ \ I /// y 1 \ i > , 1 \ / V ^ FORECASTED _ Fig. Z2)-—Weekly temperatures 1929. 48 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 82 mean a revolution in present methods of weather forecasting. Theforecasting of pressure and temperature will be made in much thesame way that ocean tides are now predicted, except that the periodsused will be solar periods rather than lunar periods and will needto be treated in a special way owing to changes in phase andamplitude. Such a successful forecast as that shown in figure 31 seems con-clusive evidence that day to day weather is not a haphazard occur-rence as many persons believe, but is subject to calculation. It isevident that changes of pressure are calculable to some extent now,and the calculations will, no doubt,
Size: 1985px × 1259px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorsm, bookcentury1800, bookdecade1860, booksubjectscience
