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. 1862 Excerpt: ... 1853, between Kaffir Zeit and the sea, appeared to be about 7 feet, or.108 feet per mile: this would give a mean velocity of 110 feet per minute, with a sectional area of 14,000 square feet; the consequent discharge would be 1,540,000 cubic feet per minute, by the Rosetta Branch. This calculation is probably much in ...
Read More
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. 1862 Excerpt: ... 1853, between Kaffir Zeit and the sea, appeared to be about 7 feet, or.108 feet per mile: this would give a mean velocity of 110 feet per minute, with a sectional area of 14,000 square feet; the consequent discharge would be 1,540,000 cubic feet per minute, by the Rosetta Branch. This calculation is probably much in excess, as no allowance is made for inequalities of fall and bed below the section. The High Nile area of 1853, at 6 inches per mile fall from Kaffir Zeit to the sea, gives by calculation a velocity of 320 feet per minute: the consequent discharge is 16,800,000 cubic feet per minute, by the Bosetta Branch; this calculation gives a close approximation to velocities which have been ascertained. From the foregoing data we are inclined to estimate a High Nile flood at not less than 30,000,000 of cubic feet per minute, and it is probable that an extraordinary year has a much greater volume. In the table of the discharge of rivers we have embodied the above, and also have given a rough estimate of the area drained by the Nile. Although only very approximate, this is probably not far from the truth. The area may be taken to extend from an average line of 10 to 24" north latitude, where the river enters Egypt, and any supply from rain ceases beyond the mere occasional torrents from the mountains, forming its narrow valley for 600 miles; a district having very little rain, and in lower Egypt none. It is curious to observe, that it would take 32 days to absorb 3 feet in depth of water over the five millions and a half acres of lands irrigated, (estimated by Girard) at the rate of 15 millions of cubic feet per minute, which is very probably the utmost which is devoted to irrigation; for a large share of the entire flood must inevitably go to the sea ...
Read Less
Add this copy of Manual of Hydrology to cart. $22.29, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Manual of Hydrology to cart. $33.45, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Manual of Hydrology to cart. $45.67, new condition, Sold by Ria Christie Books rated 4.0 out of 5 stars, ships from Uxbridge, MIDDLESEX, UNITED KINGDOM, published 2022 by Legare Street Press.
