Scientific Results of a Journey in Central Asia 1899-1902 Volume 1

Scientific Results of a Journey in Central Asia 1899-1902 Volume 1

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 edition. Excerpt: ...--1, 5 50,000 square meters in the northern, and 4,300,000 square meters in the southern, basin. Soundings were taken at 53 different points, and gave as the mean depth of the lake 5.61 m. Hence the total cubical capacity of the basin is 32,818,500 cub. m., or a solid cube of water each of whose sides measures 319 meters. According to the method of computation adopted above, the lake during the 66 days of high water received an influx of 31 million cub.m. of water. Thus in the space of little more than two months the body of the lake was entirely renewed, and a mass of water equivalent to a cube of 319 meter sides was thus prevented from flowing down to the Kara-koschun. And we may safely assume, that during the autumn flood precisely the same thing takes place (see (2) and (3) fig. 229), the only difference being, that more water is then lost, owing to the evaporation in the lake being incomparably heavier in the summer than in the winter, when the lake is frozen. At this latter season such loss as there is takes place through absorption into the ground. It is easy to conceive what the annual loss of two cubical masses of water such as these signify for the Karakoschun; and as I have already endeavoured to show that the Tarim is relatively a recent comer in this part, and that the lakes we are discussing are also new creations, it will readily be understood that their origination is one of the causes of the disappearance of the Kara-koschun. Throughout the entire region of the Karakoschun there does not exist a single open lake possessing the dimensions of the Karaunelik-kol, and what proportion this lake bears to the area of the entire lacustrine system we shall endeavour to calculate lower down. By way of obtaining yet another and...show more

Product details

  • Paperback | 236 pages
  • 189 x 246 x 13mm | 426g
  • Rarebooksclub.com
  • United States
  • English
  • black & white illustrations
  • 1236990331
  • 9781236990334