Handy Book of MeteorologyW. Blackwood and Sons, 1868 - 371 sider |
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Side 33
... daily variation , the regularity of which in the tropics is so remarkable that , according to Humboldt , the hour may be ascertained from the height of the barometer without an error of more than 15 or 17 minutes on the aver- age . This ...
... daily variation , the regularity of which in the tropics is so remarkable that , according to Humboldt , the hour may be ascertained from the height of the barometer without an error of more than 15 or 17 minutes on the aver- age . This ...
Side 34
... daily barometric oscillation and the daily march of temperature . 65. The surface of the globe is always divided into a day and night hemisphere , separated by a great circle which re- volves with the sun from east to west in twenty ...
... daily barometric oscillation and the daily march of temperature . 65. The surface of the globe is always divided into a day and night hemisphere , separated by a great circle which re- volves with the sun from east to west in twenty ...
Side 36
... daily barometric pressure least disturbed by large evaporating surfaces , or by moist winds . Thus the smaller maximum and minimum are apparent in the curve of dry air at Calcutta ; at St Petersburg they are very faintly marked ; whilst ...
... daily barometric pressure least disturbed by large evaporating surfaces , or by moist winds . Thus the smaller maximum and minimum are apparent in the curve of dry air at Calcutta ; at St Petersburg they are very faintly marked ; whilst ...
Side 37
... daily fluctuation is 0.125 inch , in Great Britain it is only a sixth part of that amount . very small in the high latitudes of St Petersburg and Bosse- kop ; and in still higher latitudes , at that period of the year when there is no ...
... daily fluctuation is 0.125 inch , in Great Britain it is only a sixth part of that amount . very small in the high latitudes of St Petersburg and Bosse- kop ; and in still higher latitudes , at that period of the year when there is no ...
Side 38
... daily variation is great ; but they may also be , nay , frequently are , applied in cases where they are not applicable , thus leading to a good deal of confusion . mean . 74. The legitimate use of these corrections is in their ap ...
... daily variation is great ; but they may also be , nay , frequently are , applied in cases where they are not applicable , thus leading to a good deal of confusion . mean . 74. The legitimate use of these corrections is in their ap ...
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America antisolar point ascending Asia Atlantic atmospheric pressure average barometer blow Britain calm causes centre charts cirrus cirrus cloud cistern climate cloud coast cold colder column condensed continent Crown 8vo daily dew-point diminished direction dry air earth earth's surface east Edition electricity equator equatorial current Europe evaporation falls Fcap feet flow globe greater heat height hemisphere Hence high pressure higher hour humidity hygrometer Iceland inch of mercury inches increase Indian Ocean isobarometric lines January John Herschel July latitudes low pressure lower Mauritius maximum mean temperature mercury Meteorological meter miles minimum moisture monsoon months northern northern hemisphere Norway observations occur ocean Orkney perature Plate polar current polarisation prevail Professor rain rainfall regions rises round Scotland season snow soil south-west St Petersburg storms summer temperature terrestrial radiation thermometers tion tropics tube upper currents vols weather wind winter Yakutsk
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