SCIENTIFIC ABSTRACT LEGENKOV, A.P. - LEGEZO, L.S.

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CIA-RDP86-00513R000929120012-5
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S
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100
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January 3, 2017
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July 31, 2000
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12
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December 31, 1967
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SCIENTIFIC ABSTRACT
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ISGENIKOV A P. t- Motion of a long wave in an infinitely long flat channel of variable depth. Probl. Arkt. no.2:73-83 157. (MIRA 11:12) (Hydrodynamics) /j x~o v PHASE I BOOK M(PLOITATION SOV/4085 Leningrad. Arkticbeskiy i Antarkticheskiy nauchno-issledovateliskiy institut Problemy Arktiki; sbornik statey, vyP- 5 (Problems of the Arctic; Collection of Articles., No- 5) Leningrad, Izd-vo "Morskoy transport," 1958. 139 P- 500 copies printed. XERM COPY Additional Sponsoring Agency: USSR. Ministerstvo morskogo flota. Glevnoye upravleniye severnogo morskogo puti. Resp. Ed.: V.V. Frolov; Editorial Board: L.L. Balakshin, M.I. Belov, Ya. Ya. Gakkell, A.A. GirsY P. A. Gordiy6nko, L.G. Kaplinskaya., A.F.IAktibnov, A.P. Nikollskiy, A.Ya. Sukhorukov, and A.F. Treshnikov (Deputy Resp. Ed.); Tech. Ed.: L.P.' Drozhzhina. PURPOSE: The publication is intended for geographers, oceanographers, and readers interested in the study of the Arctic and Antarctic regions. COVERAGE: This collection of 19 articles published by the Arctic and Antarctic Institute deals with phenomena on the Arctic ice sheet, the effect of western C ard 1/5 I Problems of the PLrctic, lollection of Articles, No. 5 SOV/4085 atmospheric circulation on air conditions in the Arctic . methods of photometric processing of aerial photographs in determining the depth of reservoirs, mag- netic observations and processes occurring on islands in Scrviiet Arctic waters. Brief information on the results of Soviet Arctic and Antarctic expeditions*is included. References follow the articles. TABLE OF CONTENTS: Legentkov,, A.P. The Theory of Mal Dispersion, Concentration, and Compression the Open S~& 5 Denisov, A.S. Causes of the Change of Water Temperature in the North Cape Current 1.9 Timofeyev, V.T. The "Age" of Atlantic Waters in the Arctic Basin 27 YakovlevY G.N. Heat Balance of the Ice Cover of the Central Arctic 33 Vangengeym, G.Ya. Shift dr the Centers of Atmospheric Activity and of the Middle-Latitude Plow in Relation to Transformation of Western Circulation 47 Card 2/5 Problems of the Arctic; Collection of Articles., No-5 SOV/4085 Malykh, B.P. Connection Between Changes of Pressure Near the Ground and in the Free Atmosphere 57 Petrova., A*N. Thunderstorms in the Arctic 67 Milyayev, N.A. Gecmagnetic Disturbance in the Region of Operations of the Drifting Ice Stations "North-Pole-3" and "NorthrPole-411 73 Gorazdavskiy, T.Ya. Theoretical Premises for a Method of Forecasting the Disintegration of Ice Fields and Frozen Ground 81 Shvaybhteyv, Z.I. Preparation of Modeling Ice by Pulverization of Super- cooled Water 93 Yanutsh, D.A. Phatmetric Methods of Processing Aerial Photographs to Determine the Depth of Reservoirs 99 NOTES Nesterova., M.P. The Soviet Union Resi=es the Production of the Normal Sea Water Card 3/5 Problems of the Arctic; Collection of Articles, No- 5 SOV/4085 Volkov,, P.D. A Case of Drift Determination in Oceanographic Research Performed With the Aid of Radar 113 Dolgin., I.M. Production of Hydrogen for Aerological PurpbsesWith the Use of Aluminum l16 Sen1ko., P.K. Navigation and Magnetic Observations Made During an Antarctic Sledge-Tractor Journey 328 Sychev, K.A. Floating Ice Island of the 'North-Pole-611 Station 121 Koblents., Ya.P. Disintegration of Semenovskiy Island in Recent Years 125 FRCM FIEID OBSERVATIONS Mustafin, N.V. The Ice Field of the '~N6fth-PoU -7, I'Drifting ice station 127 Sisko., R.K. June Thunderstorms on the Novasibirskiye Islands 127 Ivanov, V.B. A Fissure on the Smmlt of a Glacier Dome 131 Card 4/5 Problems of the Arctic; Collection of Articles SOV/4085 Zakharov., V.F. Walrus Rookery on the Vilkitskiy Island 132 INFORMATION Maksimov, V.I. Second Antarctic Expedition of the Academy cfSciences USSR 133 Baskakov.,'G.A. Jq and N.F. Kudryavtsev. Expedition for the Purpose of Investigating Currents in the Kara Sea During the 1957 Navigation Period 137 Denisov, AsS. Oceanographic Expedition on the Ship "Toros" 139 AVAILABLE: Library of dongress JA/rn/gmp Card 5/5 9-7-6o AUTHOR: __Legen!~~ SOV/49-58-E-5/17 TITLE: Plane Free Oscillations of an Ideal Homogeneous Liquid in an CA - Infinite Canal of Variable Cross-section (Ploskiye svobo- dnyye kolebaniya ideallnoy odnorodnoy zhidkosti v beskon- echnom kanale peremennogo secheniya) PERIODICAL: Izvestiya Akademii !,lauk SSSR, Seriya Geofizicheskaya, 19587 Nr 8, pp 989 - 994 (USSR) ABSTRACT: This problem has been studied by Green (Ref 1), Lamb (Ref 2), Taylor (Ref 3) and Thorade (Ref 4). Green assumed that the cross-section changed only by a small fraction in a wavelength. In Lamb's and Taylor's formulations, the change of cross-section could take place over any distance but the section itself tended to zero. Thorade considered a similar problem but with an infinite canal. However, he neElected reflections of the oscillations which considerably reduces the value of his work. The author considers the oscillations of a liouid in an infinite canal not subject to the limitations of Green and Thorade. The basic eauations are taken to be: Cardl/7 SOV/40-58-8-5/12 Plane Irree Oscillations of an Ideal Homogeneous Liquid in an infinite Canal of Variable Cross-section au - ~ - 9 at ax (SU) = - b rax at where u is the velocity of horizontal motion of the liquid; t is the time; g is the acceleration due to gravity; ii is the deviation from the undisturbed surface; b is the width of the canal at the surface and S is the cross-sectional area of the canal. Assuming a sine wave oscillation gives Eq.(2).. The oscillations are supposed to be propagated in t-le direc- tion in which thecross-section diminishes. Then tl'-e progressive waves can be written in the form: Card2/7 T1 + = T10 sin a (t - x/c 0) SOV/49-58-8-5~17 Plane i'ree Oscillations of an Iaeal Homogeneous Liquid in an Infinite Oanal of Variable Cross-section where c is the velocity of propagation of the 0 Pog wave and p 0 is the depth. Between two different sections, a wave with variable amplitude and velocity is propagated; as in Eq.(3) (where "~ and -U are the amplitude and maximum, horizontal velocity of the liquid at the given point, 0 and y are non-linear functions denotini~ the change in phase between the given point and the ori5in. Ea-S. (3) are written as sums of sines and cosines (4 . Eq.('/) is obtained from the continuity condition. Three main problems are now considered. a) The width changes along a straight line while the depth remains constant. Let b = b 0 - 2xtanp and the depth p be constant ~Figure 1). Eliminating x in (2) and substituting k = -Irb /,fp--q Ttan (p Cives: 110(k) + C2YO( k) Card3/? Substituting values for 0 1 and U 2 obtained from SOV/49-58-8-5/17 Plane ffree Oscillations of an Ideal Homog-eneous Liquid in an Infinite Canal of Variable Cros---section Eqs.(?) and (8 Cives two equations for n and u in terms of J 0~k~ O-Emd YOW Next, their dependence on a/X and b/bo is considered ~vihere a is the variable length of the canal). Suppose k