Climate and Time in Their Geological Relations: A Theory of Secular Changes of the Earth's ClimateD. Appleton, 1875 - 577 páginas |
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Página ii
... SUMMER 164.55 DAYS . N. SUMMER ater اسب Perihelion distance 84,293 , 650 miles . Aphelion distance 98.506.350 miles . 200.69 DAYS . N. WINTER Gncial 164.55 DAYS . FRONTISPIECE PERIHELION .
... SUMMER 164.55 DAYS . N. SUMMER ater اسب Perihelion distance 84,293 , 650 miles . Aphelion distance 98.506.350 miles . 200.69 DAYS . N. WINTER Gncial 164.55 DAYS . FRONTISPIECE PERIHELION .
Página viii
... Summer Temperature . - Reason of the Low Summer Temperature of Polar Regions . - Deflection of Ocean - currents the chief Cause of Secular Changes of Climate . - How the foregoing Causes deflect Ocean - currents . - Nearness of the Sun ...
... Summer Temperature . - Reason of the Low Summer Temperature of Polar Regions . - Deflection of Ocean - currents the chief Cause of Secular Changes of Climate . - How the foregoing Causes deflect Ocean - currents . - Nearness of the Sun ...
Página 11
... summer tempera- tures , so as to produce alternately in the same latitude of either hemisphere a perpetual spring , or the extreme vicissitudes of a burning summer and a rigorous winter . " This opinion , however , was unfortunately to ...
... summer tempera- tures , so as to produce alternately in the same latitude of either hemisphere a perpetual spring , or the extreme vicissitudes of a burning summer and a rigorous winter . " This opinion , however , was unfortunately to ...
Página 12
... summer and winter in the southern hemisphere , and to moderate it in the northern ; thus pro- ducing a more violent alternation of climate in the one hemi- sphere , and an approach to perpetual spring in the other . As it is , however ...
... summer and winter in the southern hemisphere , and to moderate it in the northern ; thus pro- ducing a more violent alternation of climate in the one hemi- sphere , and an approach to perpetual spring in the other . As it is , however ...
Página 13
... summers , produce a glacial epoch . To assert , therefore , that the purely astronomical causes could produce such an effect would be simply absurd . --- Important Consideration overlooked . The important fact , how- ever , was ...
... summers , produce a glacial epoch . To assert , therefore , that the purely astronomical causes could produce such an effect would be simply absurd . --- Important Consideration overlooked . The important fact , how- ever , was ...
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Términos y frases comunes
amount of heat antarctic aphelion arctic regions Atlantic beds bottom boulder clay Caithness Carboniferous cause centre of gravity channel coal cold periods condition of climate consequently considerable denudation deposits depth descend earth's orbit eccentricity ecliptic effect Eocene equator evidence existence extent fact feet flow foot-pounds force Geikie Geol geological geologists glacial epoch glacier globe Grangemouth gravel greater Greenland Gulf-stream heat received ice-cap icebergs inter-glacial periods island James Geikie Kilsyth land land-ice latitude lower mass mean melting miles Miocene molecules motion North North Sea northern obliquity ocean ocean-currents perihelion polar column polar regions poles present probably produce Professor quantity of heat radiation regarding result river rocks sand says Scotland sea-bottom sea-level shear Sir Charles Lyell slope snow southern hemisphere specific gravity stones stratified stream striated submergence summer sun's supposed surface theory thickness tion valley warm periods winter
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Página 331 - ... been removed from the general surface in one year ; and there seems no danger of our overrating the mean rate of waste by selecting the Mississippi as our example, for that river drains a country equal to more than half the continent of Europe, extends through twenty degrees of latitude, and therefore through regions enjoying a great variety of climate, and some of its tributaries descend from mountains of great height. The Mississippi is also more likely to afford us a fair test of ordinary...
Página 535 - Now, the perihelion of the orbit is situated nearly at the place of the northern winter solstice ; so that, were it not for the compensation we have just described, the effect would be to exaggerate the difference of summer and winter in the southern hemisphere, and to moderate it in the northern ; thus producing a more violent alternation of climate in the one hemisphere, and an approach to perpetual spring in the other. As it is, however, no such inequality subsists, but an equal and impartial...