scholarly journals The long-term earthquake prediction for the Kuril–Kamchatka island arc for the April 2016 through March 2021 period, its modification and application; the Kuril–Kamchatka seismicity before and after the May 24, 2013, M 8.3 deep-focus earthquake in the Sea of Okhotsk

2017 ◽  
Vol 11 (3) ◽  
pp. 173-186 ◽  
Author(s):  
S. A. Fedotov ◽  
A. V. Solomatin
Keyword(s):  
Earthquake Prediction ◽  
Sea Of Okhotsk ◽  
Island Arc ◽  
The Sea Of Okhotsk ◽  
Before And After ◽  
Deep Focus

The possibility of tsunami in the Sea of Okhotsk caused by deep-focus earthquakes

2016 ◽  
Vol 52 (2) ◽  
pp. 217-224 ◽  
Author(s):  
A. I. Zaytsev ◽  
E. N. Pelinovsky ◽  
A. A. Kurkin ◽  
I. S. Kostenko ◽  
A. Yalciner
Keyword(s):  
Sea Of Okhotsk ◽  
The Sea Of Okhotsk ◽  
Deep Focus

LEVEL VARIABILITY OF THE SEA OF OKHOTSK COASTAL AREAS AT THE BEGINING OF THE 21ST CENTURY AND ITS REPRESENTATIONIN THE GLOBAL REANALYSIS DATABASES

2020 ◽  
Vol 42 (4) ◽  
pp. 411-424
Author(s):  
Aleksandr KHOLOPTSEV ◽  
Sergey PODPORIN
Keyword(s):  
Sea Level ◽  
Sea Of Okhotsk ◽  
Tide Gauge ◽  
Coastal Areas ◽  
Global Ocean ◽  
Satellite Monitoring ◽  
Climate Data ◽  
Sea Levels ◽  
The Sea Of Okhotsk

The paper aims to investigate basic features of modern long-term variations of the Okhotsk Sea level in its coastal areas and establish feasibility of certain retrospective analysis databases usage for determination of mean rates of the above processes. The reanalysis databases considered include Global Ocean Physics Reanalysis GLORYS12v.1 by the Copernicus Marine Environment Monitoring Service and ICDC-reanalysis supported by the Integrated Climate Data Center, which provide coverage of the sea in question. The raised problem is of significant interest for physiographers, oceanographers and involved in coastal shipping and marine safety in the Sea of Okhotsk. Long-term sea level variations are most accurately monitored by tide gauge stations, which, however, are scarce along the coast of the sea in question. Less accurate and not uniformly available through easier to use and collect data is the satellite monitoring by radar altimeters. Global retrospective analyses based on mathematical modelling are considered to be an effective instrument to assess sea levels at any given time at any point.

Genesis and Nd Isotope Composition of Ferromanganese Deposits of the Sea of Okhotsk and the Kuril Island Arc

2021 ◽  
Vol 62 (9) ◽  
pp. 1074-1087
Author(s):  
P.E. Mikhailik ◽  
I.A. Vishnevskaya ◽  
E.V. Mikhailik ◽  
M.G. Blokhin ◽  
M.V. Chervyakovskaya ◽  
...  
Keyword(s):  
Sea Of Okhotsk ◽  
Kuril Island ◽  
Isotope Composition ◽  
Island Arc ◽  
Deryugin Basin ◽  
Nd Isotope ◽  
The Sea Of Okhotsk ◽  
Ferromanganese Deposits ◽  
Nd Isotope Composition ◽  
Kuril Island Arc

Abstract —The Nd isotope composition of ferromanganese deposits (FMD) from the central part of the Sea of Okhotsk and the Kuril island arc has been studied. The results showed that diagenetic samples from the Deryugin Basin have a heterogeneous Nd isotope composition. The positive εNd values here might be both due to the input of a terrigenous impurity and due to diffuse endogenetic element supply. The FMD samples from the Sonne underwater ridge show a εNd value specific to seawater (–3.2). The εNd value of hydrogenetic FMD from Volcano 7.14 is –3.4, which corresponds to the εNd value of the Pacific water. The FMD samples from Volcano 5.5 are characterized by εNd = –2.0. The higher εNd value might be due to a moderate dilution of the hydrothermal fluid by seawater and might also indicate the presence of volcanic fragments in the FMD samples. The highest εNd value (+4.4) has been established for volcaniclastic sandstone saturated with Fe and Mn hydroxides. It points to a mixing of volcanomictic and hydrothermal materials.

scholarly journals Excitation of seiches in ice at port water area of the sea of Okhotsk

2019 ◽  
Vol 486 (4) ◽  
pp. 475-479
Author(s):  
G. I. Dolgikh ◽  
D. P. Kovalev ◽  
P. D. Kovalev
Keyword(s):  
Numerical Simulation ◽  
Spectral Analysis ◽  
Dynamic System ◽  
Sea Of Okhotsk ◽  
Water Area ◽  
External Forcing ◽  
Sea Waves ◽  
Wave Processes ◽  
The Sea Of Okhotsk

Long term observations of sea waves with one second discreteness in the port harbor of Sea of Okhotsk (Sakhalin island) at a depth of about two meters under the ice were carried out using autonomous wave recorders in 2009-2017. Spectral analysis of the data showed the presence of several significant peaks on the periods from 2 to 15 seconds in the spectra for the moments of strong swell at sea. These peaks are caused by wave processes that are generated due to the nonlinear transformation of the swell coming in ice. The numerical simulation of the reaction of the dynamic system - the water area described by the Duffing equation, depending on the parameters included in the equation and determined from experimental observations, is carried out. It is shown, including using the Poincare mapping that the amplitude of external forcing has the greatest influence on the transition of the system to chaos.

THE MORPHODYNAMICS OF THE OKTYABR’SKAYA SPIT (SEA OF OKHOTSK COAST OF KAMCHATKA)

2018 ◽  
Author(s):  
С. Горин ◽  
S. Gorin ◽  
Е. Игнатов ◽  
E. Ignatov ◽  
Е. Кравчуновская ◽  
...  
Keyword(s):  
20Th Century ◽  
Seasonal Dynamics ◽  
Sea Of Okhotsk ◽  
River Estuary ◽  
Archival Data ◽  
Western Coast ◽  
The Sea Of Okhotsk

Oktyabr’skaya Spit is a polygenetic aggradational landform, about 35 km long. It borders the Bol’shaya river estuary (south-western coast of Kamchatka) from the sea of Okhotsk. This talk is based on literature and archival data (18th–20th century) and on fieldwork (2005, 2010–2012 years). Secular, long-term and seasonal dynamics of Oktyabr’skaya Spit is discussed.

Sign in / Sign up

Export Citation Format

Share Document