Transport of the colloid matter of riverine runoff through estuaries     

E. V. Lasareva  A. M. Parfenova  T. S. Demina  N. D. Romanova  N. A. Belyaev  E. A. Romankevich 《Oceanology》2017,57(4):520-529

A procedure for separating the colloid component of natural waters is proposed. It was shown that this component is the main form of matter transfer in Ob River runoff, because the mass of colloid substance is two orders of magnitude higher than that of particulate matter in the outer part of the estuary. Simulation and field experiments revealed the influence of nature and concentration of organic matter on their ability to stabilize or flocculate clay particles with an increase in salinity, thus affecting the range of transfer of riverine runoff matter. It was shown that the interaction of humic acids and clay particles, as well as the increase in hydrophobic properties of a flocculant, improve flocculation efficiency. Criteria are proposed to recognize in the estuarine region areas of pronounced contribution of flocculation processes to sedimentation of fine particles. It is shown that the newly formed organic matter produced by biota under saline stress might be flocculants of fine particulate matter.  相似文献   

Observing system experiments over the Atlantic Ocean with the REMO ocean data assimilation system (RODAS) into HYCOM     

Tanajura  Clemente A. S.  Mignac  Davi  de Santana  Alex N.  Costa  Filipe B.  Lima  Leonardo N.  Belyaev  Konstantin P.  Zhu  Jiang 《Ocean Dynamics》2020,70(1):115-138

Ocean Dynamics - The Oceanographic Modeling and Observation Network (REMO) focuses on scientific and technological development of operational oceanography in Brazil considering both numerical...  相似文献   

Some Problems of Reducing the Pollution of Water Bodies from Diffuse Sources     

Danilov-Danilyan  V. I.  Venitsianov  E. V.  Belyaev  S. D. 《Water Resources》2020,47(5):682-690

Water Resources - The role of diffuse pollution of water bodies in the formation of water quality in them is characterized. Some features of diffuse pollution, which are of importance for managing...  相似文献   

Hydrochemical features of boggy river sources and lakes in central European Russia     

N. P. Akmet’eva  Ya. I. Simakina  A. Yu. Belyaev  G. N. Krichevets  A. I. Solov’ev 《Water Resources》2016,43(1):158-165

Water chemistry in deep freshwater lakes and springs, situated in boggy areas and giving rise to the majority of the Russian rivers, is considered. Those lakes and springs can serve as an important reserve of fresh drinking water.  相似文献   

Investigation of the Modern Lateral Sedimentation on the Argentine Continental Slope during Cruise 79 of the R/V Akademik Mstislav Keldysh     

Ivanova  E. V.  Borisov  D. G.  Murdmaa  I. O.  Belyaev  N. A.  Zinger  T. F.  Nemchenko  N. V.  Simagin  N. V.  Sipko  A. A.  Shulga  N. A. 《Oceanology》2020,60(6):869-871

Oceanology - Herein we provide information on the sedimentological and paleoceanographic research on the Argentine Patagonian continental slope during cruise 79 of the R/V Akademik Mstislav Keldysh...  相似文献   

Resonant Orbits in the Problem of Expanding the Reachable Landing Areas on the Surface of Venus     

Eismont  N. A.  Nazirov  R. R.  Fedyaev  K. S.  Zubko  V. A.  Belyaev  A. A.  Zasova  L. V.  Gorinov  D. A.  Simonov  A. V. 《Astronomy Letters》2021,47(5):316-330

Astronomy Letters - We consider the concept of applying gravity assist maneuvers near Venus using resonant orbits with a period equal to the Venusian one. We show that the proposed operations based...  相似文献   

A layer of ozone detected in the nightside upper atmosphere of Venus     

F. Montmessin  J.-L. Bertaux  F. Lefèvre  E. Marcq  D. Belyaev  J.-C. Gérard  O. Korablev  A. Fedorova  V. Sarago  A.C. Vandaele 《Icarus》2011,216(1):82-85

To date, ozone has only been identified in the atmospheres of Earth and Mars. This study reports the first detection of ozone in the atmosphere of Venus by the SPICAV ultraviolet instrument onboard the Venus Express spacecraft. Venusian ozone is characterized by a vertically confined and horizontally variable layer residing in the thermosphere at a mean altitude of 100 km, with local concentrations of the order of 10⁷–10⁸ molecules cm⁻³. The observed ozone concentrations are consistent with values expected for a chlorine-catalyzed destruction scheme, indicating that the key chemical reactions operating in Earth’s upper stratosphere may also operate on Venus.  相似文献   

Apatite-bearing greenstone belts in Russia     

E.V. Belyaev 《Russian Geology and Geophysics》2010,51(8):857-862

The paper discusses the important and urgent problem of enlarging the mineral resources of Russia. Volcanosedimentary complexes of greenstone belts are suggested as a new alternative source of apatite ores. The distinguishing features and minerageny of greenstone complexes in the Karelian, Aldan, and Anabar Shields have been considered. Apatite occurrences have been described in brief. The paper suggests the main lines of study and geological exploration of apatite-bearing metavolcanic sedimentary complexes.  相似文献   

The Mechanism of Formation of Mesoscale Pulsating Jet Streams in the Earth’s Atmosphere     

Belyaev  A. N. 《Izvestiya Atmospheric and Oceanic Physics》2022,58(3):295-301

Izvestiya, Atmospheric and Oceanic Physics - The formation mechanism of local pulsatile jet streams is considered. It may in general be reduced to the following sequence: (i) a breaking gravity...  相似文献   

Meridional Mass Transport of Bottom Water in the South Atlantic     

Belyaev  K. P.  Morozov  E. G.  Tuchkova  N. P. 《Izvestiya Atmospheric and Oceanic Physics》2019,55(4):365-373

Izvestiya, Atmospheric and Oceanic Physics - Estimates of the meridional mass transport of Antarctic Bottom Water, calculated using the coupled ocean-atmosphere Earth System Model on the basis of...  相似文献