THE RESULTS OF HYDROMETEOROLOGICAL MEASUREMENTS BY THE WAVESCAN BUOY SYSTEM ON THE SOUTHWESTERN SHELF OF THE PETER THE GREAT BAY IN 2016

2020 ◽  
Vol 48 (4) ◽  
pp. 5-31
Author(s):  
V. B. Lobanov ◽  
A. Yu. Lazaryuk ◽  
V. I. Ponomarev ◽  
A. F. Sergeev ◽  
E. V. Kustova ◽  
...  
Keyword(s):  
Surface Layer ◽  
Current Velocity ◽  
Velocity Vector ◽  
Peter The Great Bay ◽  
Cold Season ◽  
Vertical Profiles ◽  
Near Surface ◽  
Left Turn ◽  
Peter The Great ◽  
Mean Wave Period

For the first time, the long-term measurements of meteorological and oceanographic characteristics were measured using the anchored autonomous complex of the WaveScan buoy on the Southwestern shelf of the Peter the Great Bay (Japan Sea) from 21 April to 23 December 2016. The buoy anchor was set at 50 m depth. During 10 minutes of each hour, meteorological characteristics of the near surface layer of the atmosphere, sea water temperature at the horizon of 1.5 m, and vertical profiles of the current velocity vector from the near-surface layer to the near-bottom one were measured with resolution 4 m. During 20 minutes of each hour, the characteristics of waves on the sea surface were measured. In General, most of the meteorological characteristics measured on the buoy are in good agreement with the data of the NCEP-DOE AMIP-II, ERA-Interim and ERA5 reanalysis. The significant wave height for the whole frequency belt, mean wave period and mean spectral direction from the WaveScan Buoy measurements have the best statistical relationship, confidence level is 99%, with the correspondent significant height of the waves, mean wave period and mean spectral wave direction from reanalysis ERA5. The features of variability of vertical profiles of the current velocity vector on the synoptic and seasonal time scales that depend on wind speed and vertical stratification of density are determined. In the warm season the a significant left turn of the vector of the measured current velocity with depth is observed in the seasonal pycnocline below the surface layer of friction. At wind speed, not exceeding 5 m/s, the angle of the current velocity vector left turn reaches 170° in the bottom layer, where countercurrent is formed. During the passage of the Lionrock tropical cyclone, when and the daily mean wind velocity increase to 9 m/s, the angle of left turn of the current velocity vector in the pycnocline decreases to 20°. In the cold season a classic right turn of the current velocity vector is observed in the upper boundary layer, and the vertically average velocity vector within the 50 m layer, as well as the total drift flow in the Ekman friction layer, deviate 90° to the right from the surface wind velocity vector. The left turn of the current velocity vector at the buoy installation point was not observed in the cold season.

scholarly journals MODELING OF THE HYDRODYNAMIC REGIME OF THE VOEVOD BAY

2021 ◽  
Author(s):  
С.В. Катрасов ◽  
А.Н. Бугаец ◽  
В.В. Жариков
Keyword(s):  
Current Velocity ◽  
Flow Model ◽  
Hydrological Model ◽  
Peter The Great Bay ◽  
Grid Cell ◽  
Computational Grid ◽  
Hydrodynamic Regime ◽  
Spatial Distributions ◽  
Peter The Great ◽  
Simulation Results

С помощью модели Delft3D Flow выполнено численное моделирование гидродинамического режима бухты Воевода (о. Русский, залив Петра Великого, Японское море). Русловой и распределенный приток с примыкающих к акватории бухты территорий смоделирован с помощью гидрологической модели SWAT. Результаты моделирования для каждой ячейки расчетной сетки и каждого расчетного σ-слоя представлены в виде временных рядов солености и горизонтальных компонент скорости течения, на их основании построены пространственные распределения обеспеченных значений скорости течения и солености. Delft3D Flow model was applied to simulation of the hydrodynamic regime of Voevoda Bay (south Primorye, Russki Island, Peter the Great Bay, Russia). The streamflow and distributed inflow from the territories adjacent to the bay is modeled using the SWAT hydrological model. The simulation results for each the computational grid cell and each calculated σ-layer are presented in the form of time series of salinity and horizontal components of the current velocity; on their basis, the spatial distributions of the probability of exceedance for salinity and current velocity are constructed.

scholarly journals ACOUSTIC NONLINEARITY OF THE UPPER OCEAN LAYER

2020 ◽  
Author(s):  
В.А. Буланов ◽  
И.В. Корсков
Keyword(s):  
Peter The Great Bay ◽  
Acoustic Parameter ◽  
The Sea Of Japan ◽  
Near Surface ◽  
The North ◽  
Peter The Great ◽  
Nonlinear Acoustic Parameter ◽  
Ocean Layer ◽  
The Indian Ocean ◽  
Nonlinear Acoustic

Представлены результаты исследований нелинейного акустического параметра воды в верхнем слое океана. Метод измерений основан на использовании параметрической генерации звука на различных разностных частотах при бигармоническом излучении высокочастотной накачки. Измерения нелинейного акустического параметра проводились в различные годы в приповерхностном слое в северо-западной части Тихого океана, в верхнем слое до глубины 100 м в Индийском океане, а также на шельфе Японского моря, в бухте Витязь залива Петра Великого. The results of studies of the nonlinear acoustic parameter of water in the upper layer of the ocean are presented. The measurement method is based on the use of parametric sound generation at different difference frequencies under biharmonic radiation of high-frequency pumping. Measurements of the nonlinear acoustic parameter were carried out in various years in the near-surface layer in the North-Western Pacific Ocean, in the upper layer up to a depth of 100 m in the Indian ocean, as well as on the shelf of the Sea of Japan, in the Vityaz Bay of Peter the Great Bay.

scholarly journals Preliminary results of integrated oceanographic and geophysical observations in the profile of Peter the Great Bay – Tsushima Strait (the Sea of Japan, October 2019)

2020 ◽  
Author(s):  
А.А. ЛЕГКОДИМОВ ◽  
М.А. БОВСУН ◽  
Д.А. ШВАЛОВ ◽  
Г.И. МИШУКОВА ◽  
М.В. ИВАНОВ ◽  
...  
Keyword(s):  
Sea Of Japan ◽  
Flow System ◽  
Peter The Great Bay ◽  
The Sea Of Japan ◽  
Near Surface ◽  
Atmospheric Air ◽  
Tsushima Strait ◽  
Intensity Measurements ◽  
Peter The Great ◽  
Complex Methods

Наиболее оперативную информацию о состоянии океана дает проведение комплексных исследований (гравиметрические наблюдения, измерения интенсивности флуоресценции, концентрации метана и хлорофилла-а в приповерхностном слое воды, ртути и газов в атмосферном воздухе) непосредственно во время следования судна. Наши исследования проводились на переходе Владивосток–Нячанг в период с 27 по 29 октября 2019 г. в Японском море в рамках рейса LV88 на НИС «Академик М.А. Лаврентьев». Полученные данные отличаются высокой сходимостью с результатами прошлых экспедиций (например, рейс LV84, 2018 г.). Нами выявлены зоны аномальных концентраций метана (8,3 нмоль/л), углекислого газа (2,3 ppm) и ртути (4 нг/м3), а также отмечены гравитационные аномалии в Корейском проливе. The study of the ocean by complex methods using a flow system and atmospheric air is currently one of the universal methods of obtaining express results (such as gravimetric observations, fluorescence intensity measurements, methane and chlorophyll-a concentrations in near-surface water, mercury and various gases in open air) directly during the vessel’s sailing. The studies were conducted on the Vladivostok – Nha Trang traverse during October 27–29, 2019 in the Sea of Japan as a part of the LV88 voyage aboard the R/V “Academic M.A. Lavrent’yev”. According to the results of the study, abnormal zones of concentrations of methane (8.3 nM/l), carbon dioxide (2.3 ppm) and mercury (4 ng/m3) were identified. We have also noted gravitation anomalies in the Korean Strait.

scholarly journals DYNAMIC STRUCTURE OF CASCADING IN THE PETER THE GREAT BAY (SEA OF JAPAN)

2020 ◽  
Vol 48 (3) ◽  
pp. 148-163
Author(s):  
V.V. Navrotsky ◽  
V.B. Lobanov ◽  
A.F. Sergeev ◽  
A.A. Voronin ◽  
I.I. Gorin ◽  
...  
Keyword(s):  
Sea Of Japan ◽  
Surface Waters ◽  
Current Velocity ◽  
Peter The Great Bay ◽  
Dynamic Structure ◽  
The Sea Of Japan ◽  
Velocity Fluctuations ◽  
Peter The Great ◽  
Great Bay ◽  
Time Space

Analysis of cascading dynamic structure is carried out using measurements at three bottom autonomous stations installed on the continental slope of the Peter the Great Bay in the Sea of Japan. It is shown that in the course of immersion of surface waters disturbances of current velocity are generated. Interaction of temperature and current velocity fluctuations leads to fluxes of heat and momentum whose time-space and spectral structures is defined by duration and value of the immersed waters density anomalies. In the time of considerable anomalies, the immersion process has turbulent-vortical character.

ЛАНДШАФТНАЯ ОРГАНИЗАЦИЯ БЕРЕГОВОЙ ГЕОСТРУКТУРЫ ОСТРОВА ШКОТА (ЗАЛИВ ПЕТРА ВЕЛИКОГО)

2019 ◽  
Author(s):  
K.S. Ganzei ◽  
V.V. Zharikov ◽  
N.F. Pshenichnikova ◽  
A.M. Lebedev ◽  
A.G. Kiselyova ◽  
...  
Keyword(s):  
Spatial Organization ◽  
Peter The Great Bay ◽  
Spatial Arrangement ◽  
Water Area ◽  
Marine Spatial Planning ◽  
Landscape Approach ◽  
Important Condition ◽  
Statistical Comparison ◽  
Peter The Great ◽  
Comprehensive Study

Важнейшим условием достижения устойчивого развития прибрежноморского природопользования в заливе Петра Великого системы является морское пространственное планирование. Основой для этого является информация о природных комплексах территории и акватории, полученная на основе ландшафтного подхода. Ключевым районом для изучения пространственной организации ландшафтов прибрежных геоструктур стала территория острова Шкота и его подводных склонов. Для наземных ландшафтов было описано 49 наблюдательных пунктов, 4 профиля были заложены для подводных ландшафтов описано 64 наблюдательных пункта, проложено 18 профилей. Выделено 22 вида ландшафтов, из них 16 наземных, 6 подводных. Берега острова сформированы преобладанием абразивноденудационного и абразивного типов. В результате всестороннего изучения показаны особенности пространственной организации воздушных и водных природных комплексов. Особенностью исследуемой территории является экспозиция дифференциации ландшафтов между юговосточной и северозападной частями острова, обусловленная муссонной природой климата. Результаты полевых и картографических работ послужили основой для выбора зон интенсивного, умеренного и ослабленного взаимодействия наземных и подводных ландшафтов. Пространственное расположение зон взаимодействия четко иллюстрируется значительными различиями экспозиции. Результаты статистического сравнения ландшафтов суши и мелководья, окружающего остров, на основе картометрических характеристик указывают на неоднородность геоструктуры острова, обусловленную, прежде всего, сочетанием ландшафтообразующих факторов. The most important condition for achieving sustainable development of coastalmarine environmental management in Peter the Great Bay is marine spatial planning. The basis for this is information about the natural complexes of the territory and water area, obtained based on the landscape approach. The main area for studying the spatial organization of landscapes of coastal geostructures was the territory of the island of Shkota and its underwater slopes. For terrestrial landscapes, 49 observation points were described, 4 profiles were laid 64 observation points were described for underwater landscapes, 18 profiles were laid. 22 species of landscapes have been identified, of which 16 are terrestrial, 6 are underwater. The shores of the island are formed by the predominance of abrasivedenudation and abrasive types. Because of a comprehensive study, features of the spatial organization of air and aquatic natural complexes are shown. A special feature of the study area is the exposure of the differentiation of landscapes between the southeastern and northwestern parts of the island, due to the monsoon nature of the climate. The results of field and cartographic works served as the basis for selecting areas of intense, moderate and weakened interaction of land and underwater landscapes. The spatial arrangement of the interaction zones is clearly illustrated by significant differences in exposure. The results of a statistical comparison of the land and shallow water landscapes surrounding the island, based on the cartometric characteristics, indicate the heterogeneity of the islands geostructure, primarily due to the combination of landscapeforming factors.

Recombination Characteristics of Single-Crystalline Silicon Wafers with a Damaged Near-Surface Layer

2013 ◽  
Vol 58 (2) ◽  
pp. 142-150 ◽  
Author(s):  
A.V. Sachenko ◽  
◽  
V.P. Kostylev ◽  
V.G. Litovchenko ◽  
V.G. Popov ◽  
...  
Keyword(s):  
Surface Layer ◽  
Crystalline Silicon ◽  
Silicon Wafers ◽  
Single Crystalline Silicon ◽  
Near Surface ◽  
Single Crystalline

The large-scale vegetation maps of the western coast of Peter the Great Bay (Far East, the Sea of Japan)

2000 ◽  
pp. 50-61 ◽  
Author(s):  
S. V. Osipov ◽  
V. P. Verkholat
Keyword(s):  
Vegetation Cover ◽  
Large Scale ◽  
Far East ◽  
Peter The Great Bay ◽  
The Sea Of Japan ◽  
Western Coast ◽  
Spatial Unit ◽  
Peter The Great ◽  
Great Bay ◽  
River Valleys

Two territories on the western coast of Peter the Great Bay were mapped in the large scale. The geobotanical mapping means revealing and displaying the essential regularities of vegetation cover. Both the spatial and temporal regularities of vegetation under natural and anthropogenic influences are well pronounced in the territory under consideration. The concept of the vegetation spatial unit (vegetation complexes) was applied as a basis for mapping. The maps and their legend were worked out as a system of vegetation combination types (vegetation combination is a spatial unit of the supracoenotic level). Such categories, as vegetation of tops and slopes, lowlands and river valleys, sea coasts reflect maximal contrasts in vegetation cover, so they are the highest level divisions of the map legend. Types of succession series and stages of series are developed for construction of the second and third levels of the legend. Communities, similar in ecotope, total species composition, saplings and some other characteristics, are referred to one type of series. 5 types of series have been distinguished: dry, fresh, moist, very moist, wet. The main factor of dynamics in considered territory is fire and the series are mainly pyrogeneous. Series are presented as sequences of vegetation stages. The vegetation stages for tops and slopes are: closed low forest — open low woodland — shrub thicket with saplings — meadow with saplings, for lowlands and river valleys they are: open low woodland — thicket of saplings — meadow or mire with saplings.

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