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. 1910 Excerpt: ...Tables, the schemes will easily be understood. We shall therefore content ourselves with a few general remarks. In the first example (page 68) we have made a direct use of the observed data only supposing the pressure to have been observed in millibars instead of in millimeters of mercury. This first example being ...
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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. 1910 Excerpt: ...Tables, the schemes will easily be understood. We shall therefore content ourselves with a few general remarks. In the first example (page 68) we have made a direct use of the observed data only supposing the pressure to have been observed in millibars instead of in millimeters of mercury. This first example being worked out, we have constructed the second, considering the calculated heights (column 24 of table J) as observed quantities, column 2 of table K. We have preferred thus to derive example 2 artificially from example 1, instead of taking an independent example, where the heights have been really observed; for the analogy and the contrast of the methods are better illustrated when both are used to work out the same case of atmospheric equilibrium. Comparing the two schemes, we see that the difference amounts mainly to an interchange of the order of the columns, followed by a passage from direct methods to methods of estimation, or vice versa. In connection with this second example it is important to emphasize that a observed heights should be considered only those found according to rational geometrical methods, as for instance when the height of a kite is determined by the angle and the length of the kite-line. The use, on the contrary, of a barometer with height-scale instead of pressure-scale is unscientific. It gives less trustworthy results, and at the same time additional labor; for the working out of the results according to example 2 is more laborious than the corresponding work according to example 1. In some cases both pressure and height may be observed. The observations then give directly the equilibrium relation between pressure and height. But on account of the imperfections of the aneroid barometer, the relation found in this direct w...
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Add this copy of Dynamic Meteorology and Hydrography; Volume 1 to cart. $44.29, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2019 by Wentworth Press.
