Geological–Geophysical and Oceanographic Research in the Sea of Japan,Tatar Strait,on Cruise 61 of the R/V Akademik Oparin

Oceanology - The paper presents brief results of comprehensive studies of the water area of the Tatar Strait and Sea of Japan obtained on cruise 61 of the R/V “Akademik Oparin” in...     

Study of the State and Variability of the Northwestern Japan Sea in the Autumn–Winter Period on Cruise 62 of the R/V Akademik Oparin

Oceanology - The results of research carried out on cruise 62 of the R/V Akademik Oparin from December 14 to 29, 2020 continued monitoring of the interannual variability of the Japan Sea water...     

Ecosystems of Siberian Arctic Seas–2020: The Kara Sea (Cruise 81 of the R/V Akademik Mstislav Keldysh)

Cruise 81 of the R/V Akademik Mstislav Keldysh was organized by Shirshov Institute of Oceanology and took place from August 27 to September 25, 2020 under the Program “Marine Ecosystems of the Siberian Arctic.” Participants included 76 scientists from the institutes of Russian Academy of Sciences, Moscow State University, VNIRO, and the NRC Kurchatov Institute and specialists from the Emergency Situations Ministry. Coordinated hydrophysical, hydrochemical, biooceanological, geochemical, and radioecological research was carried out over the Kara Sea, on the shelf near the St. Anna Trough, the continental slope, the Novaya Zemlya depression, and bays of the eastern coast of Novaya Zemlya. The condition of disposed radioactive waste in bays of the archipelago was assessed.

     

Geological evolution of the Dongsha Uplift and its surrounding depressions in the South China Sea

-The tectonic types of the Zhujiang (Pearl) River Mouth Basin in the South China Sea are epicontinental rift-depression basins. Prior to Early Cretaceous time, the Dongsha Uplift arid its surrounding depressions had been combined with the Eurasia Plate in a single unit. Many ENE-trending narrow rifted basins were formed in the third episode of Yanshan orogeny (Late Laramide). The rifted basins in the Paleocene and Eocene were stretched and extended, forming Zhu 1, Zhu 2 and Zhu 3 depressions. The Dongsha Uplift is located between Zhu 1 and Zhu 2 depressions . covering an area of 28 000 Km2. Its geologic evolution can be divided into four stages:(1) Late Cretaceous - Paleocene block-faulting stage.(2) Eocene -Oligocene uplifting and eroding stage.(3) Late Oligocene - Early Miocene sustained subsiding stage.(4) Middle Miocene -Recent noncompensated subsiding stage.The Dongsha Uplift is a structural zone favourable for oil-gas accumulation.     

Oceanological Research of the Baltic Sea in the 51st Cruise of the PV Akademik Sergey Vavilov (June–July 2021)

Oceanology - The 51st cruise of the PV Akademik Sergey Vavilov (June 30–July 14, 2021) included the study of redox conditions in the Baltic Sea deeps. Water temperature in the upper...     

Ecosystems of the Siberian Arctic Seas–2021: Ecosystem of the Kara Sea in the Period of Seasonal Ice Melting (Cruise 83 of the R/V Akademik Mstislav Keldysh)

Oceanology - Cruise 83 of the R/V Akademik Mstislav Keldysh was organized by the Shirshov Institute of Oceanology in the framework of the Program “Marine Ecosystems of the Siberian...     

Multidisciplinary Investigation of the Transform Fault Zones Doldrums and Vema during Cruise 45 of the R/V “Akademik Nikolaj Strakhov”

Oceanology - Herein we provide information on the integrated geological, geophysical, sedimentological, paleoceanographic, hydrophysical and biological investigations in the Central Atlantic during...     

Ecological characteristics of Ostracoda in the South Huanghai Sea and East China Sea

ＥｃｏｌｏｇｉｃａｌｃｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆＯｓｔｒａｃｏｄａｉｎｔｈｅＳｏｕｔｈＨｕａｎｇｈａｉＳｅａａｎｄＥａｓｔＣｈｉｎａＳｅａ￥ＣｈｅｎＲｕｉｘｉａｎｇａｎｄＬｉｎＪｉｎｇｈｏｎｇ（ＴｈｉｒｄＩｎｓｔｉｔｕｔｅｏｆＯｃｅａｎｏｇｒａ...     

A possible role of the South China Sea in ENSO cycle

A data-based hypothesis on the role of the South China Sea (SCS) in ENSO cycle is proposed: during El Nino, there are westerly wind anomaly over the western equatorial Pacific and positive SST anomaly in the eastern equatorial Pacific. Meanwhile anomalous convection moves to the central Pacific with anomalous sinking over Indonesian Archipelago. The latter can cause southerly wind anomaly over the north of South China Sea (NSCS) and makes the NSCS warmer. The warm NSCS can attract the anomalous convection to it in some degree. This attraction is in favor for producing easterly wind anomaly over the western equatorial Pacific, so it helps to form a cycle.     

Deep Structure of the Indochina Peninsula–South China Sea Transition Zone According to Geophysical Data

Oceanology - After a long hiatus, integrated geological and geophysical studies resumed in the western South China Sea. The research was carried out on cruise 88 of the R/V Akademik M.A....     

Biological Research in the Siberian Arctic Seas in Summer–Autumn 2019 (Cruise of the R/V Professor Levanidov)

Oceanology - The article presents the results of hydrobiological, ichthyological, trophological, acoustic, and genetic research aboard the R/V Professor Levanidov in the Chukchi, East Siberian,...     

Distribution and ecological aspects of the Siphonophora in the middle of South China Sea

This paper reports species composition, horizontal distribution and seasonal variation of total individual and dominant species of the Siphonophora and their relationship to the environmental factors. Materials from the water layers within 0～200 m were collected during the periods of September, 1983, April and May, July and August, and December, 1984 in the study region (12°-19°30′N, 111°-118°E, Fig. 1).     

Seasonality of interannual atmosphere–ocean interaction in the South China Sea

The present study documents the atmosphere–ocean interaction in interannual variations over the South China Sea (SCS). The atmosphere–ocean relationship displays remarkable seasonality and regionality, with an atmospheric forcing dominant in the northern and central SCS during the local warm season, and an oceanic forcing in the northern SCS during the local cold season. During April–June, the atmospheric impact on the sea surface temperature (SST) change is characterized by a prominent cloud-radiation effect in the central SCS, a wind-evaporation effect in the central and southern SCS, and a wind-driven oceanic effect along the west coast. During November–January, regional convection responds to the SST forcing in the northern SCS through modulation of the low-level convergence and atmospheric stability. Evaluation of the precipitation–SST and precipitation–SST tendency correlation in 24 selected models from CMIP5 indicates that the simulated atmosphere–ocean relationship varies widely among the models. Most models have the worst performance in spring. On average, the models simulate better the atmospheric forcing than the oceanic forcing. Improvements are needed for many models before they can be used to understand the regional atmosphere–ocean interactions in the SCS region.     

Complex Oceanological Research during the 59th Cruise of the Research Vessel Akademik Ioffe in the Eastern North Atlantic (September–October 2021)

Oceanology - During the 59th cruise of the P/V Akademik Ioffe (September–October 2021), geophysical, sedimentological, hydrological, hydrochemical, and biological studies were carried out in...     

Study on circulation and meso-scale eddies in the South China Sea in summer of 1998

ＩＮＴＲＯＤＵＣＴＩＯＮＲｅｃｅｎｔｙｅａｒｓ’ｓｔｕｄｙｈａｓｐｒｉｍａｒｉｌｙｓｈｏｗｎｔｈａｔｔｈｅＳＣＳｈａｓａｎｉｍｐｏｒｔａｎｔｉｎｆｌｕｅｎｃｅｏｎｔｈｅｍｏｎｓｏｏｎｃｕｒｒｅｎｔｓａｎｄｏｎｔｈｅｆｌｏｏｄａｃｔｉｖｉｔｉｅｓｏｃｃｕｒｒｅｄｉｎｔｈｅｒｅｇｉｏｎｏｆＣｈｉｎａ (Ｓｕｎｅｔａｌ .,1 999,Ｄｉｎｇｅｔａｌ.,1 999) .ＴｈｅｍｏｎｓｏｏｎｏｎｓｅｔｉｎｅｖｉｔａｂｌｙｃａｕｓｅｓｔｈｅａｄｊｕｓｔｍｅｎｔｏｆｔｈｅＳＣＳｃｉｒｃｕｌａ ｔｉｏｎ ,ａｎｄｉｎｔｕｒｎ ,ｔｈ…     

Carbonate chemistry and the anthropogenic CO2 in the South China Sea

ＣａｒｂｏｎａｔｅｃｈｅｍｉｓｔｒｙａｎｄｔｈｅａｎｔｈｒｏｐｏｇｅｎｉｃＣＯ_２ｉｎｔｈｅＳｏｕｔｈＣｈｉｎａＳｅａ￥Ｃｈｅｎ－ＴｕｎｇＡｒｔｈｕｒＣｈｅｎａｎｄＭｉｎｇ－ＨｓｉｕｎｇＨｕａｎｇ（ＲｅｃｅｉｖｅｄＳｅｐｔｅｍｂｅｒ２１，１９９３；ａ?..