A Handy Book of MeteorologyWilliam Blackwood, 1868 - 371 páginas |
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Página ix
... cistern of the barometer above the sea ; 3 . The latitude and longitude ; 4. The barometer reduced to 32 ° F. , and corrected for instrumental errors , but not corrected for daily range ; 5. The mean temperature of the air . A column of ...
... cistern of the barometer above the sea ; 3 . The latitude and longitude ; 4. The barometer reduced to 32 ° F. , and corrected for instrumental errors , but not corrected for daily range ; 5. The mean temperature of the air . A column of ...
Página 13
... cistern of a barometer ; they have not the elementary knowledge to give an intelligible in- terpretation to the fluctuations of the barometer as indicative of coming changes of the weather ; and when required to send their barometers to ...
... cistern of a barometer ; they have not the elementary knowledge to give an intelligible in- terpretation to the fluctuations of the barometer as indicative of coming changes of the weather ; and when required to send their barometers to ...
Página 17
... cistern barometers and siphon barometers , the more important of these being the cistern barometer . Fig . 1 shows the Cis- tern Barometer in its essential and simplest form , and it only requires a scale , extending from the surface of ...
... cistern barometers and siphon barometers , the more important of these being the cistern barometer . Fig . 1 shows the Cis- tern Barometer in its essential and simplest form , and it only requires a scale , extending from the surface of ...
Página 18
Alexander Buchan. the cistern . Hence , then , owing to the incessant changes in the level of the cistern , the readings on the fixed scale are sometimes too high and sometimes too low . The simplest and rudest way of compensating for ...
Alexander Buchan. the cistern . Hence , then , owing to the incessant changes in the level of the cistern , the readings on the fixed scale are sometimes too high and sometimes too low . The simplest and rudest way of compensating for ...
Página 19
... cistern is at the neutral point from which the scale , G , of the instrument has been graduated . Hence , then , with every observation , the screw , P , must be turned either way till these lines lie in the same straight line . The ...
... cistern is at the neutral point from which the scale , G , of the instrument has been graduated . Hence , then , with every observation , the screw , P , must be turned either way till these lines lie in the same straight line . The ...
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Palavras e frases frequentes
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 force 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 thermometers tion tropics tube upper currents vapour vols weather wind winter Yakutsk