scholarly journals Preliminary Results of Marine Electromagnetic Sounding with a Powerful, Remote Source in Kola Bay off the Barents Sea

2013 ◽  
Vol 2013 ◽  
pp. 1-8
Author(s):  
Valery Grigoryev ◽  
Sergey Korotaev ◽  
Mikhail Kruglyakov ◽  
Darya Orekhova ◽  
Yury Scshors ◽  
...  
Keyword(s):  
Barents Sea ◽  
Integral Equation Method ◽  
Electromagnetic Sounding ◽  
Geoelectric Model ◽  
Regional Geology ◽  
Preliminary Results ◽  
The Barents Sea ◽  
Long Wave ◽  
Fault Tectonics

We present an experiment conducted in Kola Bay off the Barents Sea in which new, six-component electromagnetic seafloor receivers were tested. Signals from a powerful, remote super-long wave (SLW) transmitter at several frequencies on the order of tens Hz were recorded at the six sites along a profile across Kola Bay. In spite of the fact that, for technical reasons, not all the components were successfully recorded at every site, the quality of the experimental data was quite satisfactory. The experiment resulted in the successful simulation of an electromagnetic field by the integral equation method. An initial geoelectric model reflecting the main features of the regional geology produced field values that differed greatly from the experimental ones. However, step-by-step modification of the original model considerably improved the fit of the fields. Thereby specific features of the regional geology, in particular the fault tectonics, were able to be corrected. These preliminary results open the possibility of inverse problem solving with more reliable geological conclusions.

NUMERICAL MODELING OF POLAR LOWS OVER THE BARENTS SEA: IMPACT OF WRF PARAMETRIZATIONS ON THE QUALITY OF FORECAST.

2017 ◽  
Author(s):  
Antonina Polezhayeva ◽  
Antonina Polezhayeva
Keyword(s):  
Boundary Layer ◽  
Numerical Experiments ◽  
Barents Sea ◽  
Wrf Model ◽  
Polar Lows ◽  
The Barents Sea ◽  
Polar Low ◽  
Planetary Boundary Layer Parameterization ◽  
The Impact

Polar lows are generally characterized by severe weather in the form of strong winds, showers and occasionally heavy snow, which have sometimes resulted in the loss of life, especially at sea. Numerical simulations with mesoscale atmospheric models is a good alternative to investigate polar low phenomenon, because they produce temporally and spatially regular-spaced fields of atmospheric variables with high resolution. To describe the evolution of atmospheric processes the Advanced Weather Research and Forecasting (WRF-ARW) model was used. The principal objectives of this study were 1) the understanding of mesoscale WRF model and adapting the model for the Barents Sea region; 2) to conduct numerical experiments using WRF model with different Planetary Boundary Layer parameterization (PBLs) schemes and investigate the impact of each scheme on the quality of forecast; and 3) the investigation of the capability of WRF model to successfully simulate evolution of polar lows. The impact on the quality of forecast was investigated. The results of the study, obtained by numerical modeling of polar mesoscale low over the Barents Sea. One polar low, near Spitsbergen, from 24 of March to 26 of March 2014 were targeted. The results of numerical experiments showed that each of Planetary Boundary Layer parameterization scheme isn't successful for simulation of polar low.

Structure of the transition zone from the barents sea shelf to the Knipovich Ridge Northward from Medvezhii Island (Preliminary results of the 26th cruis of R/V Akademik Nikolaj Strakhov)

2010 ◽  
Vol 430 (2) ◽  
pp. 265-270 ◽  
Author(s):  
A. V. Zayonchek ◽  
H. Brekke ◽  
S. Yu. Sokolov ◽  
A. V. Ermakov ◽  
V. N. Efimov ◽  
...  
Keyword(s):  
Transition Zone ◽  
Barents Sea ◽  
Knipovich Ridge ◽  
Preliminary Results ◽  
The Barents Sea

The results of marine electromagnetic sounding with a high-power remote source in the Kola Bay in the Barents Sea

2013 ◽  
Vol 49 (3) ◽  
pp. 373-383
Author(s):  
V. F. Grigoriev ◽  
S. M. Korotaev ◽  
M. S. Kruglyakov ◽  
D. A. Orekhova ◽  
I. V. Popova ◽  
...  
Keyword(s):  
High Power ◽  
Barents Sea ◽  
Electromagnetic Sounding ◽  
The Barents Sea

scholarly journals Heat in the Barents Sea: transport, storage, and surface fluxes

Ocean Science ◽  
2010 ◽  
Vol 6 (1) ◽  
pp. 219-234 ◽  
Author(s):  
L. H. Smedsrud ◽  
R. Ingvaldsen ◽  
J. E. Ø. Nilsen ◽  
Ø. Skagseth
Keyword(s):  
Heat Transport ◽  
Heat Loss ◽  
Barents Sea ◽  
Surface Fluxes ◽  
Wave Radiation ◽  
Ocean Heat Transport ◽  
The Barents Sea ◽  
Long Wave ◽  
Ice Production ◽  
Long Wave Radiation

Abstract. A column model is set up for the Barents Sea to explore sensitivity of surface fluxes and heat storage from varying ocean heat transport. Mean monthly ocean transport and atmospheric forcing are synthesised and force the simulations. Results show that by using updated ocean transports of heat and freshwater the vertical mean hydrographic seasonal cycle can be reproduced fairly well. Our results indicate that the ~70 TW of heat transported to the Barents Sea by ocean currents is lost in the southern Barents Sea as latent, sensible, and long wave radiation, each contributing 23–39 TW to the total heat loss. Solar radiation adds 26 TW in the south, as there is no significant ice production. The northern Barents Sea receives little ocean heat transport. This leads to a mixed layer at the freezing point during winter and significant ice production. There is little net surface heat loss annually in the north. The balance is achieved by a heat loss through long wave radiation all year, removing most of the summer solar heating. During the last decade the Barents Sea has experienced an atmospheric warming and an increased ocean heat transport. The Barents Sea responds to such large changes by adjusting temperature and heat loss. Decreasing the ocean heat transport below 50 TW starts a transition towards Arctic conditions. The heat loss in the Barents Sea depend on the effective area for cooling, and an increased heat transport leads to a spreading of warm water further north.

Modelling Late Cenozoic isostatic elevation changes in the Barents Sea and their implications for oceanic and climatic regimes: preliminary results

2002 ◽  
Vol 21 (14-15) ◽  
pp. 1643-1660 ◽  
Author(s):  
Faisal A Butt ◽  
Helge Drange ◽  
Anders Elverhøi ◽  
Odd Helge Otterå ◽  
Anders Solheim
Keyword(s):  
Barents Sea ◽  
Late Cenozoic ◽  
Preliminary Results ◽  
The Barents Sea ◽  
Elevation Changes

scholarly journals First observation of seasonal variations in the meat and co-products of the snow crab (Chionoecetes opilio) in the Barents Sea

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Runar Gjerp Solstad ◽  
Alexandre Descomps ◽  
Sten Ivar Siikavuopio ◽  
Rasmus Karstad ◽  
Birthe Vang ◽  
...  
Keyword(s):  
Seasonal Variations ◽  
Barents Sea ◽  
Snow Crab ◽  
Total Allowable Catch ◽  
Chionoecetes Opilio ◽  
Spring Period ◽  
Meat Content ◽  
The Barents Sea ◽  
Established Species

AbstractThe snow crab (Chionoecetes opilio), SC, is a newly established species in the Barents Sea. The snow crab fishery has established itself as a new and profitable industry in Norway in the last decade. The fishery started as a year-round fishery, without any information of possible seasonal variations in the quality of the product. In 2017 a total allowable catch was established by the Norwegian government, and the fisheries were subsequently closed during the summer months. In order to optimize fishing times, and to evaluate this growing industry in the Barents Sea, seasonal variations of the meat content of the clusters, as well as variations in content and quality of co-products were investigated, aiming to identify the seasons where the exploitation of different products from SC can be most profitable. The results show seasonal variations in meat content and in composition of co-products. The highest co-product quantities and meat content are from February to April, followed by a period from June to September with decreasing meat and co-products. Our recommendation is to capture the SC in the winter–spring period in the Barents Sea, supporting the current situation and creating most value for the fisheries.

scholarly journals Barents Sea heat – transport, storage and surface fluxes

2009 ◽  
Vol 6 (2) ◽  
pp. 1437-1475 ◽  
Author(s):  
L. H. Smedsrud ◽  
R. Ingvaldsen ◽  
J. E. Ø. Nilsen ◽  
Ø. Skagseth
Keyword(s):  
Heat Transport ◽  
Heat Loss ◽  
Barents Sea ◽  
Surface Fluxes ◽  
Wave Radiation ◽  
Force Model ◽  
Ocean Heat Transport ◽  
The Barents Sea ◽  
Long Wave ◽  
Ice Production

Abstract. Sensitivity of the Barents Sea to variation in ocean heat transport and surface fluxes is explored using a 1-D column model. Mean monthly ocean transport and atmospheric forcing are synthesised and force model results that reproduce the observed winter convection and surface warming and freshening well. Model results are compared to existing estimates of the ocean to air heat fluxes and horizontally averaged profiles for the southern and northern Barents Sea. Our results indicate that the ~70 TW of heat transported to the Barents Sea by ocean currents is lost in the southern Barents Sea as latent, sensible, and long wave radiation, each contributing 23–39 TW to the total heat loss. Solar radiation adds 26 TW in the south, as there is no significant ice production. The northern Barents Sea, the major part of the area, receives little ocean heat transport. This leads to a mixed layer at the freezing point during winter and significant ice production. There is little net surface heat loss in the north, the balance is achieved by long wave loss removing most of the solar heating, and the model also suggests a positive sensible heat gain. During the last decade the Barents Sea has experienced an atmospheric warming and an increased ocean heat transport. Despite large changes the Barents Sea heat loss remains robust, the temperature adjusts, and the yearly cycle remains. Decreasing the ocean heat transport below 50 TW starts a transition towards Arctic conditions. The heat loss in the Barents Sea depend on the effective area for cooling, and an increased heat transport probably leads to a spreading of warm water further north.

Preliminary Results of Satellite SAR Monitoring of Oil Spills in the Barents Sea

2016 ◽  
Vol 20 (12) ◽  
pp. 44-53 ◽  
Author(s):  
A.Yu. Ivanov ◽  
A.A. Kucheiko ◽  
N.A. Filimonova ◽  
A.Yu. Kucheiko ◽  
N.V. Evtushenko ◽  
...  
Keyword(s):  
Barents Sea ◽  
Oil Spills ◽  
Preliminary Results ◽  
The Barents Sea

NUMERICAL MODELING OF POLAR LOWS OVER THE BARENTS SEA: IMPACT OF WRF PARAMETRIZATIONS ON THE QUALITY OF FORECAST.

2017 ◽  
Author(s):  
Antonina Polezhayeva ◽  
Antonina Polezhayeva
Keyword(s):  
Boundary Layer ◽  
Numerical Experiments ◽  
Barents Sea ◽  
Wrf Model ◽  
Polar Lows ◽  
The Barents Sea ◽  
Polar Low ◽  
Planetary Boundary Layer Parameterization ◽  
The Impact

Polar lows are generally characterized by severe weather in the form of strong winds, showers and occasionally heavy snow, which have sometimes resulted in the loss of life, especially at sea. Numerical simulations with mesoscale atmospheric models is a good alternative to investigate polar low phenomenon, because they produce temporally and spatially regular-spaced fields of atmospheric variables with high resolution. To describe the evolution of atmospheric processes the Advanced Weather Research and Forecasting (WRF-ARW) model was used. The principal objectives of this study were 1) the understanding of mesoscale WRF model and adapting the model for the Barents Sea region; 2) to conduct numerical experiments using WRF model with different Planetary Boundary Layer parameterization (PBLs) schemes and investigate the impact of each scheme on the quality of forecast; and 3) the investigation of the capability of WRF model to successfully simulate evolution of polar lows. The impact on the quality of forecast was investigated. The results of the study, obtained by numerical modeling of polar mesoscale low over the Barents Sea. One polar low, near Spitsbergen, from 24 of March to 26 of March 2014 were targeted. The results of numerical experiments showed that each of Planetary Boundary Layer parameterization scheme isn't successful for simulation of polar low.

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