Analysis of satellite observations of chlorophyll concentration in the Peter the Great Gulf (Japan Sea)

Navrotsky, V. V.; Dubina, V. A.; Pavlova, E. P.; Khrapchenkov, F. F.

doi:10.21046/2070-7401-2019-16-1-158-170

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…This feature of the spatial distribution of chlorophyll concentration is characteristic of semienclosed water areas of bays on the shelf zone of the seas affected by dynamic hydrophysical processes. As was shown in Navrotsky et al (2019) based on the analysis of satellite observations of chlorophyll concentration in Peter the Great Bay (Sea of Japan), this spatial distribution "is determined by the effect of currents generating shelf waves, which cause This paper presents the tentative results obtained during the special experiment on airborne sensing of the troposphere in the Russian sector of the Arctic. For this experiment, the equipment of the Optik Tu-134 aircraft laboratory was significantly supplemented; namely a NO x gas analyzer, a BC meter (AE-33 Aethalometer), and a PSR-1100F spectroradiometer were installed.…”

Section: Lidar Data On Sensing Of the Water Surfacementioning

confidence: 89%

Integrated airborne investigation of the air composition over the Russian sector of the Arctic

et al. 2022

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Abstract. The change of the global climate is most pronounced in the Arctic, where the air temperature increases 2 to 3 times faster than the global average. This process is associated with an increase in the concentration of greenhouse gases in the atmosphere. There are publications predicting the sharp increase in methane emissions into the atmosphere due to permafrost thawing. Therefore, it is important to study how the air composition in the Arctic changes in the changing climate. In the Russian sector of the Arctic, the air composition was measured only in the surface atmospheric layer at the coastal stations or earlier at the drifting stations. Vertical distributions of gas constituents of the atmosphere and aerosol were determined only in a few small regions. That is why the integrated experiment was carried out to measure the composition of the troposphere in the entire Russian sector of the Arctic from on board the Optik Tu-134 aircraft laboratory in the period of 4 to 17 September of 2020. The aircraft laboratory was equipped with contact and remote measurement facilities. The contact facilities were capable of measuring the concentrations of CO2, CH4, O3, CO, NOx, and SO2, as well as the disperse composition of particles in the size range from 3 nm to 32 µm, black carbon, and organic and inorganic components of atmospheric aerosol. The remote facilities were operated to measure the water transparency in the upper layer of the ocean, the chlorophyll content in water, and spectral characteristics of the underlying surface. The measured data have shown that the ocean continues absorbing CO2. This process is most intense over the Barents and Kara seas. The recorded methane concentration was increased over all the Arctic seas, reaching 2090 ppb in the near-water layer over the Kara Sea. The contents of other gas components and black carbon were close to the background level. In bioaerosol, bacteria predominated among the identified microorganisms. In most samples, they were represented by coccal forms, less often spore-forming and non-spore-bearing rod-shaped bacteria. No dependence of the representation of various bacterial genera on the height and the sampling site was revealed. The most turbid during the experiment was the upper layer of the Chukchi and Bering seas. The Barents Sea turned out to be the most transparent. The differences in extinction varied by more than a factor of 1.5. In all measurements, except for the Barents Sea, the tendency of an increase in chlorophyll fluorescence in more transparent waters was observed.

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Section: Lidar Data On Sensing Of the Water Surfacementioning

confidence: 89%

Integrated airborne investigation of the air composition over the Russian sector of the Arctic

et al. 2022

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“…This feature of the spatial distribution of chlorophyll concentration is characteristic of semi-enclosed water areas of bays on the shelf zone of the seas affected by dynamic hydrophysical processes. As was shown in (Navrotsky et al, 2019) based on the analysis of satellite observations of chlorophyll concentration in Peter the Great Bay (Sea of Japan), this spatial distribution "is determined by the effect of currents generating shelf waves, which cause the outflow of phytoplankton concentration from the coastal zone."…”

Section: Lidar Data On Sensing Of the Water Surfacementioning

confidence: 99%

Integrated airborne investigation of the air composition over the Russian Sector of the Arctic

Belan

Ancellet

Андреева

et al. 2022

Preprint

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Abstract. The change of the global climate is most pronounced in the Arctic, where the air temperature increases two to three times faster than the global average. This process is associated with an increase in the concentration of greenhouse gases in the atmosphere. There are publications predicting the sharp increase of methane emissions into the atmosphere due to permafrost thawing. Therefore, it is important to study how the air composition in the Arctic changes in the changing climate. In the Russian sector of the Arctic, the air composition was measured only in the surface atmospheric layer at the coastal stations or earlier at the drifting stations. Vertical distributions of gas constituents of the atmosphere and aerosol were determined only in few small regions. That is why the integrated experiment was carried out to measure the composition of the troposphere in the entire Russian sector of the Arctic from onboard the Optik Tu-134 aircraft laboratory in the period of September 4 to 17 of 2020. The aircraft laboratory was equipped with contact and remote measurement facilities. The contact facilities were capable of measuring the concentrations of CO2, CH4, O3, CO, NOX, and SO2, as well as the disperse composition of particles in the size range from 3 nm to 32 µm, black carbon, organic and inorganic components of atmospheric aerosol. The remote facilities were operated to measure the water transparency in the upper layer of the ocean, the chlorophyll content in water, and spectral characteristics of the underlying surface. The measured data have shown that the ocean continues absorbing СО2. This process is most intense over the Barents and Kara Seas. The recorded methane concentration was increased over all the arctic seas, reaching 2090 ppb in the near-water layer over the Kara Sea. The contents of other gas components and black carbon were close to the background level. In bioaerosol, bacteria predominated among the identified microorganisms. In most samples, they were represented by coccal forms, less often spore-forming and non-spore-bearing rod-shaped bacteria. No dependence of the representation of various bacterial genera on the height and the sampling site was revealed. The most turbid during the experiment was the upper layer of the Chukchi and Bering Seas. The Barents Sea turned out to be the most transparent. The differences in extinction varied more than 1.5 times. In all measurements, except for the Barents Sea, the tendency to an increase in chlorophyll fluorescence in more transparent waters was observed.

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Source/sink of CO2 in the southwestern part of Peter the Great Bay (sea of Japan)

Tishchenko,

Tishchenko

2025

Continental Shelf Research

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Analysis of satellite observations of chlorophyll concentration in the Peter the Great Gulf (Japan Sea)

Cited by 4 publications

References 7 publications

Integrated airborne investigation of the air composition over the Russian sector of the Arctic

Integrated airborne investigation of the air composition over the Russian sector of the Arctic

Integrated airborne investigation of the air composition over the Russian Sector of the Arctic

Source/sink of CO2 in the southwestern part of Peter the Great Bay (sea of Japan)

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