cover image: Journal of the Asiatic Society of Bengal  Part II  Physical Science  1879

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Journal of the Asiatic Society of Bengal Part II Physical Science 1879

1879

[One of the Survey Operations during the field season of 1877-78 was to explore as much as possible of the region between the Subansiri and the Dihang Rivers with a view to ascertaining which of these two affluents of the Brahmaputra river had the best claim to be considered the recipient of the S►npo River of 'Tibet. [...] The interval between the two CC noted times gives the time taken by the float to pass over the " liun." The following example shows the method of computation adopted in the majority of cases : of course it sometimes happened that the section of the bed of the river between adjacent sections where velocities were taken was as in fig. [...] The velocity of a rod extending to nearly the bed of the stream is aproximately the mean velocity of the water in the vertical plane traversed by the rod. [...] To obtain the discharge of the river at its mean low-level of the dry season the following method was adopted : the area of each potion of the section duo to rise was computed and subtracted from the observed area of that portion ; then to the diminished area of the portion a mean velocity was given which was less than the observed mean velocity 210 H. J. Harman— Operations for obtaining [ [...] The sum of the discharges of the rivers forming the Brahmaputra river should equal the discharge of the Brahmaputra itself.
history
Pages
71
Published in
India
SARF Document ID
sarf.120250
Segment Pages Author Actions
I.—on New Species of the Genus Plectopylis of the Family helicidæ.—By Lieut.-Colonel Godwin-Austen F. R. G. S. F. Z. S. &c. Late Deputy Superintendent Topographical Survey of India
1-4 unknown view
II.—On the Operations for Obtaining the Discharges of the Large Rivers in Upper Assam During Season 1877-78.—By Lieut. H. J. Harman R. E. in Charge Assam Valley Series Survey of India. Communicated by Major-Genl. J. T. Walker R. E. C. B. F. R. S. Surveyor General of India
4-36 unknown view
III.—Hemiptera from Upper Tenasserim.—By W. L. Distant. Communicated by J. Wood-Mason
37-41 unknown view
IV.—on the Diurnal Variation of Rainfall Frequency at Calcutta.—By Henry F. Blanford F. G. S. F. Z. S. F. M. S.
41-47 unknown view
V.—Record of the Occurrence of Earthquakes in Assam During
48-55 unknown view
VI.—On Some Experiments Made at H. M’s Mint in Calcutta on Coining Silver into Rupees.—By Col. J. F. Tennant R. E. F. R. S. &c. Master of the Mint
56-67 unknown view
Backmatter
i-ii unknown view

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