Dynamics of surface carbon dioxide and methane concentrations on the Arctic Belyy Island in 2015-2017 summertime

Antonov, K. L.; Poddubny, V. A.; Markelov, Yury I.; Buevich, Alexander; Медведев, А. Н.

doi:10.1117/12.2504770

Cited by 9 publications

(9 citation statements)

References 9 publications

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“…The observed oceanic signal shows an average value of CO 2 as of 406.4 ± 2.1 ppm, compared to slightly higher rates measured over the continent (407.9 ± 4.7 ppm) but with larger deviations due to stronger alterations of terrestrial carbon signatures over the spatially heterogeneous southern and western areas of the Taimyr Peninsula (Figure 8c). The decline of atmospheric CO 2 continues until August, reaching a minimum rate as low as 399.3 ppm (Figure 9a,b), which generally corresponds to earlier reported CO 2 summer values across the Arctic latitudes of Northern Eurasia [49,53,54] and might be simultaneously driven by terrestrial signals detected from the continent (36%) and larger contribution (64%) of the AO air masses (Figure 8c and Figure 10).…”

Section: Temporal Fluctuations Of Carbon Dioxide In the Coastal Arctic Atmospheresupporting

confidence: 84%

Section: Temporal Fluctuations Of Carbon Dioxide In the Coastal Arctic Atmospheresupporting

confidence: 67%

“…Like elsewhere, e.g., [32,[52][53][54], the annual amplitude of atmospheric CO2 demonstrates a seasonal pattern (Figure 9a,b) and for the study area could be mostly related to local climate conditions and proximity to the Arctic Ocean. Particularly, the influence of the AO on the CO 2 temporal dynamic applies in the sea ice cover trend, growing up during the frost season and quickly melting in summer.…”

Section: Temporal Fluctuations Of Carbon Dioxide In the Coastal Arctic Atmospheresupporting

confidence: 66%

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Continuous CO2 and CH4 Observations in the Coastal Arctic Atmosphere of the Western Taimyr Peninsula, Siberia: The First Results from a New Measurement Station in Dikson

et al. 2021

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Atmospheric observations of sources and sinks of carbon dioxide (CO2) and methane (CH4) in the pan-Arctic domain are highly sporadic, limiting our understanding of carbon turnover in this climatically sensitive environment and the fate of enormous carbon reservoirs buried in permafrost. Particular gaps apply to the Arctic latitudes of Siberia, covered by the vast tundra ecosystems underlain by permafrost, where only few atmospheric sites are available. The paper presents the first results of continuous observations of atmospheric CO2 and CH4 dry mole fractions at a newly operated station “DIAMIS” (73.30° N, 80.31° E) deployed on the edge of the Dikson settlement on the western coast of the Taimyr Peninsula. Atmospheric mole fractions of CO2, CH4, and H2O are measured by a CRDS analyzer Picarro G2301-f, which is regularly calibrated against WMO-traceable gases. Meteorological records permit screening of trace gas series. Here, we give the scientific rationale of the site, describe the instrumental setup, analyze the local environments, examine the seasonal footprint, and show CO2 and CH4 fluctuations for the daytime mixed atmospheric layer that is representative over a vast Arctic domain (~500–1000 km), capturing both terrestrial and oceanic signals.

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Section: Temporal Fluctuations Of Carbon Dioxide In the Coastal Arctic Atmospheresupporting

confidence: 84%

Section: Temporal Fluctuations Of Carbon Dioxide In the Coastal Arctic Atmospheresupporting

confidence: 67%

Section: Temporal Fluctuations Of Carbon Dioxide In the Coastal Arctic Atmospheresupporting

confidence: 66%

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Continuous CO2 and CH4 Observations in the Coastal Arctic Atmosphere of the Western Taimyr Peninsula, Siberia: The First Results from a New Measurement Station in Dikson

et al. 2021

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“…The four days duration back trajectories of the air flows [9], calculated by the HYSPLIT software package [10][11][12][13] for 500 m altitude above ground level, were used as information on the dynamics of the atmosphere. In this work the use of back trajectories on the single altitude means that the results of simulation discussed below represent the quasi-two-dimensional fields of the submicron aerosol concentration distribution in space, i.e.…”

Section: Comparison Of Simulation Results Obtaned On the Basis Of The Latitude -Longitude And The Triangular Gridsmentioning

confidence: 99%

Construction of various regular computational grids for addressing the tasks of fluid location of the atmosphere

Nagovitsyna

Poddubny

Vilinsky

2020

International Conference of Numerical Analysis and Applied Mathematics Icnaam 2019

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The method of Fluid Location of the Atmosphere (FLA) [1][2][3] is the development of back trajectory statistics methods (BTS) [4][5][6], which allow to evaluate spatial structure of atmospheric contaminants, which are measured in a finite number of monitoring sites. In any variant of the BTS method, a fixed (Euler) grid is used to divide the investigated region into a set of fixed volume spatial cells. The common example of a fixed grid is a latitude -longitude grid. However, a latitude -longitude grid becomes inconvenient for solving some tasks, such as reconstructing of the concentration fields in the Polar Regions. The aim of this work is to build an alternative grid for the tasks of the FLA method, as well as to compare and analyze simulation results obtained on the basis of various grids.

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“…The HYSPLIT software package [7][8][9][10] was used for calculation of back trajectories of air particles. The threedimensional back trajectories lasting 96 hours (four days) each, starting every hour at the location of the AERONET network monitoring point at 6 levels from 500 to 5500 m were calculated.…”

Section: Results Of the Horizontal Fluxes Estimationmentioning

confidence: 99%

Estimation of horizontal fluxes of submicron atmospheric aerosol in the middle urals

Nagovitsyna

Poddubny

Luzhetskaya

2020

International Conference of Numerical Analysis and Applied Mathematics Icnaam 2019

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The results of the estimation of submicron atmospheric aerosol horizontal fluxes by the method of Fluid Location of the Atmosphere (FLA) are presented. For this purpose, the three-dimensional problem of reconstructing the spatial structure of the aerosol distribution taking into account wet and dry deposition of aerosol particles on the underlying surface is solved numerically. The initial data were the results of photometric measurements during 2016 on the Middle Urals.

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Dynamics of surface carbon dioxide and methane concentrations on the Arctic Belyy Island in 2015-2017 summertime

Cited by 9 publications

References 9 publications

Continuous CO2 and CH4 Observations in the Coastal Arctic Atmosphere of the Western Taimyr Peninsula, Siberia: The First Results from a New Measurement Station in Dikson

Continuous CO2 and CH4 Observations in the Coastal Arctic Atmosphere of the Western Taimyr Peninsula, Siberia: The First Results from a New Measurement Station in Dikson

Construction of various regular computational grids for addressing the tasks of fluid location of the atmosphere

Estimation of horizontal fluxes of submicron atmospheric aerosol in the middle urals

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