Climate and Time in Their Geological Relations: A Theory of Secular Changes of the Earth's ClimateD. Appleton, 1875 - 577 páginas |
Dentro del libro
Resultados 6-10 de 95
Página 24
... stream , little has been ascertained regarding their volume . The breadth , depth , and temperature of the Gulf - stream have formed the subject of extensive and accurate observations by the United States Coast Survey . In the memoirs ...
... stream , little has been ascertained regarding their volume . The breadth , depth , and temperature of the Gulf - stream have formed the subject of extensive and accurate observations by the United States Coast Survey . In the memoirs ...
Página 25
... stream , I shall take the velocity to be two miles instead of four miles an hour . We are warranted , I think , in concluding that the stream before it returns from its northern journey is on an average cooled down to at least 40 ...
... stream , I shall take the velocity to be two miles instead of four miles an hour . We are warranted , I think , in concluding that the stream before it returns from its northern journey is on an average cooled down to at least 40 ...
Página 26
... stream . In other words , the Gulf - stream conveys as much heat as is received from the sun by 1,560,935 square miles at the equator . The amount thus conveyed is equal to all the heat which falls upon the globe within thirty - two ...
... stream . In other words , the Gulf - stream conveys as much heat as is received from the sun by 1,560,935 square miles at the equator . The amount thus conveyed is equal to all the heat which falls upon the globe within thirty - two ...
Página 27
... stream as is received from the sun by the entire arctic regions , the quantity conveyed from the tropics by the stream to that received from the sun by the arctic regions being nearly as two to five . But we have been assuming in our ...
... stream as is received from the sun by the entire arctic regions , the quantity conveyed from the tropics by the stream to that received from the sun by the arctic regions being nearly as two to five . But we have been assuming in our ...
Página 28
... stream alone from the tropical to the temperate and arctic regions than by all the aërial currents which flow from the equator . We are apt , on the other hand , to over - estimate the amount of the heat conveyed from tropical regions ...
... stream alone from the tropical to the temperate and arctic regions than by all the aërial currents which flow from the equator . We are apt , on the other hand , to over - estimate the amount of the heat conveyed from tropical regions ...
Otras ediciones - Ver todas
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
Pasajes populares
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...