排序方式： 共有70条查询结果，搜索用时 17 毫秒
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Drits A. V. Kravchishina M. D. Sukhanova I. N. Belyaev N. A. Karmanov V. A. Flint M. V. 《Oceanology》2021,61(6):984-993
Oceanology - Sedimentation rates in the northern Kara Sea between September 2019 and July 2020 were calculated from integrated monthly values for sedimentary matter, organic carbon, nitrogen, total... 相似文献
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D. I. Glukhovets O. V. Kopelevich I. V. Sahling V. A. Artemiev L. A. Pautova E. K. Lange M. D. Kravchishina 《Oceanology》2017,57(3):410-418
The article presents the results of shipboard and satellite measurements in the surface layer of the Baltic, Norwegian, and Barents seas during legs from the Baltic to the White Sea in June–August 2014–2016. Special attention is paid to marine phytoplankton blooms of cyanobacteria in the Baltic Sea and coccolithophores in the Barents Sea. No blooms were found in the Norwegian Sea. The efficiency of combined application of in situ and satellite optical methods for studying the parameters of phytoplankton blooms is shown. 相似文献
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L. A. Pautova M. D. Kravchishina V. A. Silkin A. P. Lisitzin 《Doklady Earth Sciences》2017,474(2):657-661
This work presents the first data on the occurrence of the invasive, potentially toxic dinoflagellate Gonyaulax polygramma in the composition of plankton phytocenoses in the Caspian Sea. It was revealed that G. polygramma plays the key role in the quantitative characteristics of summer plankton phytocenoses and its bloom during the summer seasons of 2010 and 2013 was comparable in biomass (15–16 g/m3) to a “red tide.” In addition, the correlation between the G. polygramma bloom and the wind upwelling system in the eastern mid-Caspian region was established. For the first time, it is suggested that “bloom” of G. polygramma can also occur in deep-water halistatic areas (Derbent depression), remote from the upwelling system. 相似文献
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The distribution of the suspended particulate matter concentration in the Kara Sea is analyzed based on ship and satellite
data. The statistical relationships between the suspended matter concentration and the optical characteristics were revealed.
Charts of the distribution of the suspended matter concentration in the Kara Sea were plotted, which confirmed that the application
of optical methods for analyzing the spatial distribution of the suspended matter is effective. The most turbid waters were
observed in the Ob Gulf, Yenisei Bay, the Baidaratskaya Gulf, and the adjacent regions. The smallest concentrations of suspended
matter were observed in the central and western parts of the Kara Sea. 相似文献
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Oceanology - The key indicators of marine sediment genesis are the particle size distribution (PSD) and volume concentration of suspended particulate matter (SPM). However, their study is not... 相似文献
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M. D. Kravchishina A. N. Novigatskii N. V. Politova V. V. Zernova S. A. Mosharov O. M. Dara A. A. Klyuvitkin 《Water Resources》2013,40(2):143-156
Multidisciplinary studies of the dispersed sedimentary matter (suspended particulate matter) were carried out in the Volga delta during spring flood in two areas of the Astrakhan State Biosphere Reserve (Obzhorovskii and Damchikskii), allowing the authors to reveal some regularities in sedimentation conditions. Considerable differences were found to exist in the supply of sedimentary material into the sea through the branches and arms of the eastern and western parts of the river delta. Typical of the eastern part are appreciably higher concentrations of suspended particulate matter, biogenic components, and phytopigments, as well as greater phytoplankton abundance and biomass, and sedimentary material fluxes. A relationship was found to exist between the concentration of suspended particulate matter and the phytopigments under consideration. In May, almost entire chlorophyll “a” in suspended particulate matter was concentrated in the cells of small diatom algae, where it was distributed in proportion to diatom biomass. Overall, the suspended matter of the delta is mostly represented by mineral detrital particles (quartz and carbonates) with a relatively small share of clay materials against the background of a huge amount of diatom cells and biogenic detritus. 相似文献