This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1890 Excerpt: ... is indicated by the arrows in Fig. 2. It will thus be seen that surface winds blow toward an area where the pressure is low, and from a region of high pressure, and that above them are counter-currents moving in opposite directions. 37. Atmospheric Circulation.--The Torrid Zone receives, as has been previously stated, ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1890 Excerpt: ... is indicated by the arrows in Fig. 2. It will thus be seen that surface winds blow toward an area where the pressure is low, and from a region of high pressure, and that above them are counter-currents moving in opposite directions. 37. Atmospheric Circulation.--The Torrid Zone receives, as has been previously stated, the greatest amount of heat, and in the equatorial regions, therefore, is found the chief cause of the wind circulation upon the globe. As the air within the tropics becomes heated it expands, and is forced upward by the cooler air which rushes in from both sides to fill the void. There is, therefore, an ascending current, and there are also two lateral currents--the one a northerly, the other a southerly, current. Were not the quantity of air thus drawn from the north and south restored, the whole atmosphere would ultimately accumulate in the tropical regions; but the ascending current, when it attains sufficient altitude, overflows on both sides and forms return currents flowing toward the poles. This movement of the surface-air toward the equator and of the upper portion owarcl the poles is illustrated in Fig. 3. If there were no causes to interfere with: he flow of the ascending equatorial currents toward the ioles and of the return currents toward the equator, the vinds of the earth would be only due north-and-south rinds, as shown in the diagram. Owing, however, to the rotation of the earth on its ixis, these currents do not flow directly north and south. fhis diurnal motion, which is greatest at the equator, ivcs to the current of air an apparent easterly or westrly direction more or less obvious according to the ititude. Were there no other disturbing elements, the lot on of the upper and the lower currents would be in le directio..
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Seller's Description:
Good. Publisher's binding. Leather spine over pictorial brown boards. Moderate rubbing. 144 pages: illustrations, maps; 32 cm. Colored maps. Internally clean. Signed Lilian Chamberlain. Lilian has written a lovely little poem, "One sweetly solemn thought-Comes to me o'er and o'er-I'm nearer my home to day-than I ever have been before." Paper ephemera.