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Найдено документов в текущей БД: 4

    Numerical simulation of the 1973 Shikotan (Nemuro-Oki) tsunami
/ L. B. Chubarov, Yu. I. Shokin, V. K. Gusiakov // Computers and Fluids. - 1984. - Vol. 12, Is. 2. - P123-132 . - ISSN 0045-7930

Кл.слова (ненормированные):
COMPUTER SIMULATION - Applications -- TIDE GAGES -- MAREOGRAMS -- WATER WAVES

Аннотация: The paper presents the results of numerical simulation of Shikotan (Nemuro-Oki) tsunami of 17 June 1973. Static deformations of the sea bottom are computed for some dimensional dislocation model of the seismic source with the parameters obtained from seismological observations. The computed bottom deformations are used as the initial conditions for the tsunami propagation problem in the ocean with a real bathymetry, which is considered within the framework of linear theory of shallow water. Three variants of tsunami source are examined. Travel time charts and computed mareograms at a number of points of the shoreline are presented. At 4 points, where tide-gauge records are available, the comparison of the computed mareograms with the observed ones is made. It is found that the numerical model can reproduce the basic features of the tsunami of 17 June 1973. В© 1984.

Scopus

Держатели документа:
Computing Center of Siberian Division of the USSR Academy of Sciences, 660036 Krasnoyarsk, 36, Akademgorodok, U.S.S.R.
Siberian Division, the USSR Academy of Sciences, Computing Center, 630090 Novosibirsk, Russian Federation
ИВМ СО РАН

Доп.точки доступа:
Chubarov, L.B.; Shokin, Yu.I.; Шокин, Юрий Иванович; Gusiakov, V.K.

    The numerical modelling of long wave propagation in the framework of non-linear dispersion models
/ L. B. Chubarov, Yu. I. Shokin // Computers and Fluids. - 1987. - Vol. 15, Is. 3. - P229-249 . - ISSN 0045-7930
Аннотация: The work is devoted to the questions of numerical modelling of long wave propagation, in particular tsunami waves, in the framework of non-linear dispersion models of the Boussinesq and Korteweg-de Vries type. The first part of the work includes a classification of some known mathematical models, in terms of dispersion correlation, phase and group velocities. Problems arising on the construction of finite-difference approximations of non-linear dispersion models are discussed in the second part of the work, special attention is given to the questions of constructing discrete boundary conditions. In the conclusion the results obtained in the course of numerical experiments and estimation of specifics of finite-difference models, and the contribution of non-linear dispersion effects in the process of wave propagation in the coastal zone, are discussed. The results of calculations of tsunami wave propagation in a wave tube with real bathymetry, are given. В© 1987.

Scopus

Держатели документа:
Computing Center of Siberian Division of the U.S.S.R., Academy of Sciences, 660036, Krasnoyarsk 36, Akademgorodok, U.S.S.R.
ИВМ СО РАН

Доп.точки доступа:
Chubarov, L.B.; Shokin, Yu.I.; Шокин, Юрий Иванович

    Information modeling of temporal spatial data for ecological monitoring of the krasnoyarsk reservoir
/ A. V. Korobko, A. A. Korobko, T. V. Yakubaylik // CEUR Workshop Proceedings : CEUR-WS, 2017. - Vol. 2033: 2017 All-Russian Conference "Spatial Data Processing for Monitoring of Natural and Anthropogenic Processes, SDM 2017 (29 August 2017 through 31 August 2017, ) Conference code: 132851. - С. 319-323 . -
Аннотация: Efficiency of ecological monitoring data analysis is determined by elaborating, adequateness and comprehension of the informational models describing content and structure of expeditionary and laboratory research. The paper is dedicated to represent technologies of spatial temporal data processing and management for hydrobiological researches in the model-oriented system of operational informationanalytical support of consolidation and processing of expedition data. Information models of the developed system are suggested according to research tasks of ecological monitoring.

Scopus

Держатели документа:
Federal Research Center Krasnoyarsk Science Center of Siberian Branch of Russian Academy of Sciences, Institute of Computational Modelling SB RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Korobko, A. V.; Korobko, A. A.; Yakubaylik, T. V.
551.468.4
A10

    A method for reconstructing bottom topography for an enclosed basin from scattered, sparse measurement data
[Text] : статья / A. F. Shchepetkin, O. S. Volodko // Океанологические исследования. - 2018. - Т. 46, № 3. - P67-84, DOI 10.29006/1564-2291.JOR-2018.46(3).5 . - ISSN 1564-2291
   Перевод заглавия: Метод построения рельефа дна для закрытого водоема из произвольно распределенных точечных данных измерений
УДК

Аннотация: Numerical simulation of circulation and internal waves in a basin requires the knowledge of bottom topography, defined as a continuous and continuously differentiable field (un-less there are known features of the relief to justify the opposite), which is, unfortunately, not always available with sufficient resolution and coverage. In this article we review ex-isting techniques for producing regularly gridded field from scattered bathymetry data - in our case raw field data measured by a boat equipped with an echo sounder and GPS - and propose a new one, which we believe is the most optimal for this situation. The technique essentially goes along the line of approach of Sandwell (1987) using Green functions to construct biharmonic spline interpolation, which we augment by adding coastline and in-troduce special preprocessing of measured data to identify and eliminate (by averaging out) potentially contradictory and unreliable measurements which may cause spurious oscillations of biharmonic spline.
Чтобы моделировать течения и внутренние волны в водоеме необходимо задать его рельеф дна в виде непрерывной, желательно непрерывно дифференцируемой функции (если, конечно, не существует физических особенностей определяющих обратное). К сожалению, данные рельефа с достаточным пространственным разрешением существуют далеко не всегда. В этой статье мы рассмотрим ранее известные методы построения полей на регулярных сетках из пространственно-разбросанных данных - в нашем случае это топография дна, измеренная эхолотом с катера, оборудованного GPS - и представим метод, который мы считаем оптимальным для нашей ситуации. Наш подход в целом следует методике работы (Sandwell, 1987), который предложил использовать бигармонические сплайны, выраженные через функции Грина для интерполяции данных спутниковых измерений геофизических полей. В нашем методе мы дополнили измеренные топографические данные береговой линией, после чего подвергли получившийся массив специальной обработке, чтобы выявить и исключить противоречивые и/или ненадежные данные, так чтобы впоследствии предотвратить нежелательные численные эффекты (осцилляции) бигармонических сплайнов.

РИНЦ

Держатели документа:
Institute of Computational Modeling SB RAS
Moscow Institute of Physics and Technology
Shirshov Institute of Oceanology, Russian Academy of Sciences
Siberian Federal University

Доп.точки доступа:
Shchepetkin, A.F.; Щепеткин А.Ф.; Volodko, O.S.; Володько О.С.