突出特色 全力以赴——江苏省908专项工作回顾

<正>为贯彻实施《全国海洋经济发展规划纲要》,促进我国海洋经济持续快速发展,实现"全面建设小康社会,加快推进社会主义现代化目标",国家海洋局组织实施了国务院2003年批准的"我国近海海洋综合调查与评价"专项,即908专项。2005     

有条不紊 保证质量 争取908专项成果大丰收

<正>908专项全称"我国近海海洋综合调查与评价",是我国有史以来规模最大、时间最长、项目最多、内容最丰富的近海海洋综合调查与评价工作,包括近海海洋综合调查、综合评价、"数字海洋"信息基础框架构建三项基本内容。国家海洋环境监测中心     

“908专项”水体环境调查冬季航次任务全面展开

《中国海洋报》消息,12月20日,由国家海洋局组织实施的我国近海海洋综合调查与评价(简称“908专项”)水体环境冬季航次准同步调查任务在沿海全面展开。近海海洋水体环境调查是“908专项”中最重要的综合调查项目之一,目的是通过全面、系统地开展我国近海物理海洋与海洋气象、海     

908专项系列特别报道 908专项:摸清我国近海海洋资源家底

<正>2003年9月,国务院批准了"我国近海海洋综合调查与评价"专项(908专项),这是党中央、国务院总揽海洋事业发展全局做出的一项重要决策,它是新中国成立以来国家投入最     

应用“908”专项成果推进江苏沿海科学发展

一 江苏"908"专项简介 为贯彻实施<全国海洋经济发展规划纲要>,促进我国海洋经济持续快速发展,实现"全面建设小康社会,加快推进社会主义现代化目标",针对我国近海海域综合调查程度和基本状况认识度比较低的情况,提出开展"我国近海海洋综合调查与评价"专项.     

河北省908专项工作综述

<正>一、河北省908专项概况2004年国家海洋局正式启动近海海洋综合调查与评价项目,即908专项,这对于加强海洋资源管理,海洋生态环境保护和海洋防灾减灾,提高海洋管理水平,促进海洋资源的合理开发利用与保护,促进海洋     

有条不紊 保证质量 争取908专项成果大丰收

908专项全称“我国近海海洋综合调查与评价”,是我国有史以来规模最大、时间最长、项目最多、内容最丰富的近海海洋综合调查与评价工作,包括近海海洋综合调查、综合评价、“数字海洋”信息基础框架构建三项基本内容：国家海洋环境监测中心作为牵头单位,     

多管齐下 强化服务 严格管理——国家海洋局第二海洋研究所908专项项目实施与阶段成果

<正>一、概况为了对我国近海海域综合调查程度和基本状况有充分的认识,为我国海洋经济可持续发展、进一步加强海洋管理及海洋生态环境保护和海洋减灾防灾提供基础数据和科学依据,为我国国防建设提供高精度、数字化的服务,2003年9月国务院批准了"我国近海海洋综合     

浙江省908专项阶段性成果陆续开始提供使用

<正>908专项是新中国成立以来我国近海范围内同步开展的最大规模的海洋综合调查与评价专项。浙江省908专项是国家908专项的有机组成部分,工作任务共分4大项(类),即调查、评价、"数字海洋"、成果集成,任务单元共划分为19个。专项工作     

突出特色 全力以赴——江苏省908专项工作回顾

为贯彻实施《全国海洋经济发展规划纲要》,促进我国海洋经济持续快速发展,实现“全面建设小康社会,加快推进社会主义现代化目标”,国家海洋局组织实施了国务院2003年批准的“我国近海海洋综合调查与评价”专项,即908专项。2005年,江苏省政府和国家海洋局共同批准立项江苏908专项,同时成立了以黄莉新副省长为组长的领导小组,     

Model of the post-Cenozoic evolution of the cryolithozone of the shelf of the western part of the Laptev Sea

The analysis of the structure of the cryolithozone, facies, and thicknesses of the Quaternary sediments and the results of the physicochemical mathematical modeling of the modern shelf of the western part of the Laptev Sea support the influence of the Late Pleistocene glaciations on the heat conditions and the distribution of the permafrost in the area. A ～200-m thick glacier formed under aerial conditions from atmospheric precipitation represented the metamorphosed snow cover. According to the modeling, the long-living (from 60?50 to 10?4 ky) glacier reduced the thickness of the permafrost rocks in the reviewed shelf area for 280–360 m. The Holocene marine transgression additionally decreased the thickness from 50–140 m on the inner shelf to 220–350 m on the outer shelf. The modern submarine cryolithozone 450-0 m thick is wide-spread in the studied region from the coast to the shelf boundary (isobaths of 130–140 m), where it pinches out at a distance of ～380 km from the coast at a depth of ～250 m above the sea level.     

Investigation of the mechanism of the long-term evolution of the carbon cycle in the ecosystem of the Sevastopol bay

We analyze the components of the carbon system of the Sevastopol bay waters and the balance of main sediment-forming substances using the data of field investigations in 1998–2008. The interannual variations of total inorganic carbon and the equilibrium partial pressure of carbon dioxide in the bay water are noted. An increase in the flux of carbon dioxide into the bay and in the content of organic carbon in bottom sediments is revealed, and an explanation of this phenomenon is given. The priority accumulation of organic carbon in the sediments of the bay is established. We assess the interannual variation in the relative abundances of organic and inorganic carbon as an index of the carbon cycle stability.     

Contemporary state of the investigation of the influence of the discharge of rivers on the hydrologic structure of the Black Sea

We generalize and analyze the state of investigations of the influence of river waters on the hydrologic structure of the Black Sea. Specific features of the water, regime and hydrography of rivers flowing into the sea, data on the discharge of rivers, and intrayear and interyear variability of the discharge are presented. We discuss and analyze works studying the transformation of river waters, routes of desalinized sea waters, and their influence on the thermohaline structure and dynamic regime of the sea. Translated by Peter V. Malyshev and Dmitry V. Malyshev     

Modelling of the ecosystem of the Black-Sea shelf zone near the estuary of the Danube

We analyze the results of numerical calculations performed according to the three-dimensional interdisciplinary model of an ecological system of the Black-Sea shelf zone near the estuary of the Danube. The complete system of equations of hydrothermodynamics is solved together with transport equations of the advection-diffusion-reaction type used to describe the transformation of a substance (nitrogen) between the components of the characteristic vectors of the ecosystem: plankton, detritus, and biogenic elements (nitrates). We describe the distinctive features of the circumcontinental distribution of components obtained as a result of numerical experiments and present arguments for the conclusion that the ecosystem of the Danube estuary water area plays the role of a buffer zone between the press of the Danubian biogenic pollutions and the neighbouring areas of the shelf zone and open sea. Translated by Peter V. Malyshev and Dmitry V. Malyshev     

Dynamics of the ice cover and peculiarities of the ice transportation of the sediments at the tidal flats of the Kandalaksha Gulf of the White Sea

Ten years of semistationary studies of the interaction of the ice cover and the coastal relief of the Kandalakhsa Gulf in the White Sea allowed us to reveal the peculiarities of these processes in the warm and cold years and the mechanisms of the origination of ice forms, including ice tents, which govern the character of the tidal flats. Three dynamic fast ice zones are distinguished by their geomorphological location, morphology, and ice dynamics. The dependence of the mechanisms and volumes of the enrichment of the fast ice in the sediments on the coastal zone??s relief was established. At the coast of the Kindo Peninsula (Velikaya Salma Strait), the ice mostly contains fine-sandy sediments. Coarser sediments, including boulders, are occasional and frozen into the ice at the contact of the fast ice and the bottom. At the expense of the ice??s spreading by 4?C6 times in the warm years and 2?C4 times in the cold years, several thousand tons of sediments mostly from the tidal flat??s surface (100?C700 m³ from 1 km of coast in the wide tidal flats and <50 m³ on the steep coasts) are delivered to the water area.     

Relationship between the path of the Kuroshio in the south of Japan and the path of the Kuroshio Extension in the east

A relationship between paths of the Kuroshio and Kuroshio Extension (KE) is investigated, using the satellite-derived altimetry dataset of 1993–2008. When the Kuroshio takes the nearshore nonlarge meander path or typical large meander path and resultantly goes through the deeper channel (about 2500 m) of the Izu-Ogasawara Ridge, the KE path adopts a relatively stable state with the two quasi-stationary meanders. On the other hand, when the Kuroshio takes the offshore nonlarge meander path and then passes over the shallower part of the Ridge (about 1000 m), the KE path tends to be convoluted, i.e., an unstable state.     

Variability of the nutrient runoff of the rivers of the Arctic Basin

The spatiotemporal variability of the hydrochemical composition of the riverine runoff in nearmouth areas is presented using the example of selected rivers of the Arctic Basin. The temporal dynamics of the riverine nutrient runoff are mainly determined by the seasonal and interseasonal variations in the drainage basins. The spatial variations in the chemical composition of riverine waters in the near-mouth areas are mainly caused by the dynamics of the water flow and the river bed relief and, to a lesser degree, by biochemical processes. It is shown that the variations in the nutrient composition of the waters in near-mouth areas are comparable in magnitude to those at the river-sea geochemical barriers.     

Parameters of the sediments of the deep-water basin of the Black Sea

The methodology and the first results of the computations of the volumes, masses, and growth rates of the sedimentary body of the buried Black Sea basin are presented. Their temporal evolution reflects the regional paleogeodynamics, in particular, the reorientation of the vector of the relative movement of the Arabian and Eurasian lithospheric plates and the related intensification of their collision in the late Miocene-Pliocene.     

Modelling of the ecosystem on the shelf of the Republic of Guinea

Three mathematical models are considered: a two-dimensional model for calculating the concentration fields of the ecosystem components on the shelf of the Republic of Guinea, a pointwise model for the annual variation of the components, and a two predators-prey model. These models are used to study the effect of hydrodynamic conditions on the state of the shelf ecosystem and for research into the causes which distort the balance between marketable and unmarketable fish.Translated by Mikhail M. Trufanov.     

Evolution of the slope of the buried depression of the Black Sea

The first data on the temporal evolution of the slope of the buried depression of the Black Sea are obtained. The sharp change in the rate of the decrease in the slope steepness that occurred in the Late Miocene-Pliocene time reflects a reorientation of the vector of mutual movement and a related intensification of the collision between the Arabian and Eurasian lithospheric plates.