National Institute of Informatics - Digital Silk Road Project
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Scientific Results of a Journey in Central Asia, 1899-1902 : vol.1 |
The Bos-ilek a little above Avullu-köl; April 30. | |
Bos-ilek above yhe branches from Tschivilik-köl; April 20. |
496 THE TARIM DELTA.
After the Ilek has collected itself together, that is above the point where it sends off its arms to the Kara-köl and Avullu-köl, and below the point where it receives the overflow of the Tschivilik-köl, j5lus the Bos-ilek, I took measurements of it, with the following results: breadth, 19.9 m.; mean depth, 2.203 m.; mean velocity, 0.9080 m.; and volume, 39.80 cub.m. in the second. The greatest velocity in this section occurs at a depth of 1.5 m. from the surface. On both sides of the river are extensive marshes, which, although they are in constant and uninterrupted communication with it, nevertheless contain stagnant water. It is possible that under the right bank there may be one or more small channels creeping through the kamisch, but these we could not for that reason get at; if so, their volumes ought to be added to the total I have just given above.
Fig. 432. 2.35 2.55 2.5E 2.86 3.43 3.23 2.64 I.9t 0.45 = depth.
95 I08 I09 114 I09 I08 I09 90 II I20 119 I12 I17 III I19 115 90
130 120 113 1 1 2 110 110 105 73 velocity.
125 118 85 11I xo6 92 99 44
112 117 78 99 91 90 82
Breadth = 19.9 m. The Bos-ilek a little above Avullu-köl; April 30. Scale = 1 : 200.
After that we measured the Bos-ilek above all the little kok-alas which it receives from the Tschivilik-köl, the measurement being taken at the end of the excursion so as to ensure that we included none of the water from the lake in question, for the direct overflow would hardly be likely to advance so far up. The breadth was 20.22 m. ; the mean depth, 2.631 m. ; the mean velocity, 0.2485 m. ; and the volume, 13.22 cub.m. in the second. On the I st April 1896, two days' journey higher up,
Fig. 433. Right. 1.44
I0
2.53 3.62 4.35 3.39 3.o3 3.xx 2.79 2.o5 = depth. Left.
20 30 40 37 32 24 30 9
26 37 35 31 33 32 16 l velocity.
13 28 36 31 30 18
33
Breadth = 20.22 m. Bos-ilek above the branches from Tschivilik-köl; April 20. Scale = r : 200.
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