New net zooplankton geographical information system in the Far East seas and adjacent waters of the Pacific Ocean

2019 ◽  
Vol 28 (12) ◽  
pp. 1735-1748
Author(s):  
Igor V. Volvenko
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Alexander Petrov ◽  
Alexey Yermolaev ◽  
Maria Koskina

This article discusses the reasons for the Russian government’s interest in the exploration of the Pacific frontiers in the early eighteenth century. The authors pay special attention to the expeditions organised before the First Kamchatka expedition. Those expeditions were organised by I. M. Evreinov, F. F. Luzhin, I. Kozyrevsky, Ya. A. Yelchin, and others. The authors clarify which expeditions were organised at the personal order of Peter the Great and study them in the context of the international situation. Special attention is paid to the debatable aspects of the orders of Peter the Great regarding the expeditions of Evreinov and Luzhin. The article is relevant because of the growing attention of researchers to the history of the Far East and the Pacific Ocean. Referring to new materials, the authors revise the opinion existing in the literature on the spontaneity of Peter the Great’s decision to explore the Pacific Ocean. The article provides information on different categories of the Russian population and the diversity of the Russian regions that took part in the exploration of the Pacific. The article demonstrates how the expeditions of 1711 and 1722 contributed to strengthening Russia’s position in the Far East. The authors employ an interdisciplinary approach, using the latest achievements in historical studies, traditional methods (comparative, genetic, the history of state and law) and new approaches (microhistory, historical psychology, the history of everyday life, historical anthropology, and ethnohistory). The study’s main results are the analysis of the projects and direct activities of Russian expeditions to America in the early eighteenth century. The authors also reveal the reasons for government interest in the eastern borders of Russia, which consisted of the country’s imperial status and its international position.


2015 ◽  
Vol 463 (2) ◽  
pp. 873-877
Author(s):  
A. G. Matul’ ◽  
Kh. M. Saidova ◽  
M. A. Smirnova ◽  
T. A. Khusid ◽  
G. Kh. Kazarina ◽  
...  

10.12737/3410 ◽  
2014 ◽  
Vol 8 (1) ◽  
pp. 76-82
Author(s):  
Сергей Березницкий ◽  
Sergey Bereznitskiy

The article is devoted to review of the activities in Ί753-Ί765 years Nerchiskoi expedition to find a transport route from lake Baikal to the Okhotsk coast of the Pacific ocean. Analysis of the collected surveyors geographical information gives the opportunity to show the level of development of domestic science of the XVIII century, the interethnic relations and geopolitical problems, especially studied landscapes of Transbaikalia and the upper Amur basin.


1968 ◽  
Vol 5 (4) ◽  
pp. 1067-1078 ◽  
Author(s):  
N. A. Beliayevsky ◽  
A. A. Borisov ◽  
I. S. Volvovsky ◽  
Yu. K. Schukin

Transcontinental sections of the earth's crust and Upper Mantle from the Kuril Islands to the Carpathians, and along other principal directions, in all about 15 000 km long, show the following features:(1) The depth of an asthenosphere horizon agrees well with the position of a high-conductivity layer in the Upper Mantle.(2) Hypocenters of earthquakes are located in fault zones. In the zone of the Kuril Island arc, they plunge into the Upper Mantle to depths of hundreds of kilometers, dipping towards the continent.(3) Boundary velocities along the Mohorovičić discontinuity are not dependent on its depth, for they are always in the range 8.0–8.2 km/s; velocities within the crust are correlated with the depths of layers; in the roots of high mountains a layer of 7.5–7.8 km/s has been distinguished near the base of the crust.(3) The crustal thickness in folded areas is in a certain accordance with the altitude of the surface of the earth's solid cover, with Bouguer anomalies and amplitudes of neotectonic movements. It varies from 8 km in margin areas of the Pacific Ocean basin to 60 km in the Tien Shan. Average crustal thicknesses within the platforms are in the region of 40 km, increasing to 50 km in the southern outlying areas of the East-European platform and to 46 km in areas of recent tectonic activity within the Turanian and Siberian Platforms.(4) In deep depressions, internal and outlying seas, the crustal thickness is reduced, and 'granite' layer (6.0–6.5 km/s) is absent. Mesozoic formations of the Far East and adjacent zones of transition from the Pacific Ocean to the continent are distinguished by reduced thicknesses. In Alpine formations the 'basalt' layer dominates over the 'granite' layer.(5) Subhorizontal crustal stratification complicated by deep faults has been found everywhere. Plicate geosynclinal folding is not reflected in deep crustal structures.(6) Temperature of the platform folded basement is mainly related to thickness and composition of the sediments.The transcontinental sections provide a clearer idea of the relationship between anomalous geophysical fields and deep and shallow crustal structures than is given in corresponding maps.


2018 ◽  
Vol 7 (2) ◽  
pp. 208-211
Author(s):  
Valery Vladimirovich Suvorov

At the turn of the XIX-XX centuries, the movement of Russia to the East became one of the topics discussed in domestic journalism and scientific thought. His views on this issue were also expressed by the outstanding scientist D.I. Mendeleev. In his works he stressed the historical necessity and inevitability of Russias access to the Pacific Ocean, the importance of its foreign policy development in the Far East direction. Showing the cultural and civilizational distancing of Russia from the West, he focused on the presence of eastern features in it, but at the same time he noted its cultural and historical uniqueness. In Mendeleevs discourses, a departure from Eurocentrism in the assessments of the East and Russia can be traced. Speaking about the cultural and historical tasks of Russia, the scientist stressed that it was more important to maintain the charm of the name in the East than to imitate Western states, especially England. In Mendeleevs papers, special emphasis was made on the peaceful strengthening of Russia in Asia and a friendly attitude towards the Eastern peoples. An interesting feature of Mendeleevs reasoning is the motif of a fairy tale: on the one hand, it is a half-sketchy east, on the other, a fairy tale as the image of an ideal future for Russia.


2016 ◽  
Vol 11 (5) ◽  
pp. 897-910
Author(s):  
Go Urakawa ◽  
◽  

The Great East Japan Earthquake occurred on March 11, 2011. Tohoku region, off the coast of the Pacific Ocean, was severely damaged by the tsunami, and all of Japan was affected. Recently, torrential and guerrilla rains have been frequently occurring in Uji, Kyoto, which suffered massive damage on August 13, 2013. Soma, Fukushima, and Uji made tremendous efforts for supporting victims’ recovery by using spatial information and GIS. These successful efforts indicate that they had been using spatial information efficiently in their daily operations. This paper describes the learnings from the past efforts in disaster affected areas and discusses how these areas had been using spatial information for efficient daily operations. The paper makes suggestions to build a GIS-based information system with seamless interaction between daily operations and disaster management, and introduces new challenges faced by Kitakyushu, Fukuoka using spatial information based on cloud computing network for regional disaster resilient societies.


Author(s):  
Mark Costello ◽  
Alan Cheung ◽  
Nathalie De Hauwere

We produced a new terrain map of the oceans from the best available resolution global bathymetry using a Geographical Information System. From this map, we calculated the following statistics for each sea and ocean, and each country’s Exclusive Economic Zone2: sea surface and seabed area, volume, mean, maximum and standard deviation of depth and slope. We found a total sea surface area of 353 million km2, seabed area of 354 million km2, and volume of 1 trillion litres or 1.3 billion km3. The deepest depth was 10,898 m in Micronesia, North Pacific Ocean. We found that the ocean was very flat; 71% of seabed had a slope of < 1o. We predicted locations of 56,741 seamounts (> 1,000 m high) with 74% within 30-min distance of known seamounts. We also identified over 1 million circular seabed features that may be seamounts or sea-hills.


2019 ◽  
Vol 10 (4) ◽  
pp. 945-957
Author(s):  
S. Yu. Sokolov

A cross‐sections of longitudinal (P) and transverse (S) wave anomalies (attribute δ(VP/VS)) is constructed along the sublatitudinal profile from the Atlantic Ocean to the Pacific Ocean across the regions of the latest Eurasian volcanism. It is correlated with surface geophysical parameters interpretable in terms of geodynamics: heat flow, seismicity and integrated conductivity of the lithosphere. All the volcanic groups are related to the negative anomalies of S‐ and P‐wave velocity variations at depths, which are observed in the eastern part of the profile from Central Asia to the Pacific Ocean to depths of 1000 km. Such anomalies correlate with the heat flow anomalies and are thus indica‐ tive of a deep source. The absence of deep roots in the western part of the profile from the Caspian to the Western Mediterranean suggests lateral extension of the anomalously ‘hot’ mantle from the Afar branch of the African super‐ plume. The groups of volcanic formations in the Baikal region and the Far East are spatially associated with heat flow anomalies that are three times higher than the background values. A correlation between intraplate volcanism and the lithosphere conductivity suggests the presence of positive anomalies in all volcanic clusters, despite the fact that their background values are considerably different. In the continental part, velocity anomalies are typical of all volcanic groups with positive conductivity anomalies. It is evidenced by seismic tomography that all the volcanic groups (ex‐ cept the Alpine‐Caucasian) have ‘hot’ roots in the upper mantle to depths of 1200 km. The highest maximum conduc‐ tivity values are typical of the zones wherein high intraplate seismicity is absent. Along the profile, there are several zones of high intraplate seismicity, which are separated by aseismic zones or plate boundaries. This suggest the influ‐ ence of the heated state of the mantle and the occurrence of zones of increased conductivity in the lithosphere.


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