Oceans and the Atmospheric Carbon Content

Duarte, Pedro; Santana‐Casiano, J. Magdalena

doi:10.1007/978-90-481-9821-4

Cited by 8 publications

(8 citation statements)

References 210 publications

(272 reference statements)

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“…Количественное описание цикла углерода в океане не может быть полным без исследования трансформации этого элемента в шельфовых водах. Сток CO2 в прибрежные воды достигает 21%, а образуемая в этих областях первичная продукция составляет 15-30% соответствующих величин Мирового океана [4,5].…”

unclassified

“…Этим критериям соответствует поток CO2 между морем и атмосферой, возникающий вследствие градиента значений pCO2 в морской воде и в приводном слое атмосферы. Исследования направления и интенсивности потока CO2, а также временного хода этих показателей осуществляются как на региональном уровне, так и в глобальном масштабе при изучении газообмена между Мировым океаном и атмосферой [4,5,7].…”

unclassified

“…Не менее важна возможность использования pCO2 для оценки антропогенной нагрузки на акваторию. Этот аспект представляет особый интерес при изучении экосистем шельфа, принимающих основную часть аллохтонного органического вещества, в том числе антропогенного происхождения [4].…”

unclassified

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Variability of the CO2 Flux on the Water-Atmosphere Interface in the Black Sea Coastal Waters on Various Time Scales in 2010–2014

Khoruzhy¹

2018

MGZh

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Due to the present tendency to the increased carbon dioxide content in the atmosphere, one of the priorities in hydrochemical research consists in studying the gas exchange in the water-atmosphere system. At that, quantity assessment of the marine areas' role in the CO2 transport requires taking into account water spatial heterogeneity based on its ability to invade or evacuate carbon dioxide. Represented are the results of estimating intensity and direction of the CO2 flux between the sea and the atmosphere in the Black Sea coastal waters in 2010-2014 executed based on the in situ hydrochemical studies and reanalysis of meteorological data. The results of direct measurements of the CO2 equilibrium partial pressure in the water surface layer and in the atmosphere near-surface layer were used for the first time for calculating the CO2 flux in the Black Sea waters. The results of analysis of the CO2 flux variability on different time scales are represented. The performed calculations show that the CO2 evacuation prevails in a warm season, whereas its invasionin a cold season. During the off-season transitions, the water area state is close to equilibrium. The timing limits of the seasons are not constant and vary practically each year. Probable reasons of a CO2 flux seasonal variability are considered. Possible role of the abiogenic, biogenic and anthropogenic factors is assessed as a cause of the observed intensity fluctuations of the CO2 exchange between the sea and the atmosphere. It is shown that on the synoptic time scale, the CO2 flux is characterized by a narrower oscillations' amplitude as compared to its seasonal and inter-annual variability. It is noted that smallscale temporal variability of the CO2 flux is more pronounced during the cold season. The features of the carbon cycle in the Black Sea coastal waters are considered. Possibility of using information on the CO2 flux intensity and direction for assessing the water area ecological state is discussed.

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Variability of the CO2 Flux on the Water-Atmosphere Interface in the Black Sea Coastal Waters on Various Time Scales in 2010–2014

Khoruzhy¹

2018

MGZh

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“…Quantitative description of carbon cycle in the ocean can not be complete without studying the transformation of this element in the shelf waters. CO2 sink into the coastal waters reaches 21 % and primary production formed in these areas makes up 15-30 % of the World Ocean corresponding values [4,5].…”

mentioning

confidence: 99%

“…CO2 flux between the sea and the atmosphere, occurring due to the gradient of pCO2 values in the sea water and in the near-water layer of the atmosphere, meets these criteria. Research of CO2 flux direction and intensity, as well as the temporal variation of these parameters, are carried out on regional level and global scale when studying the gas exchange between the World Ocean and the atmosphere [4,5,7].…”

mentioning

confidence: 99%

Variability of the CO2 Flux on the Water-Atmosphere Interface in the Black Sea Coastal Waters on Various Time Scales in 2010–2014

Khoruzhii

2018

PhO

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Due to the present tendency to the increased carbon dioxide content in the atmosphere, one of the priorities in hydrochemical research consists in studying the gas exchange in the water-atmosphere system. At that, quantity assessment of the marine areas' role in the CO2 transport requires taking into account water spatial heterogeneity based on its ability to invade or evacuate carbon dioxide. Represented are the results of estimating intensity and direction of the CO2 flux between the sea and the atmosphere in the Black Sea coastal waters in 2010-2014 executed based on the in situ hydrochemical studies and reanalysis of meteorological data. The results of direct measurements of the CO2 equilibrium partial pressure in the water surface layer and in the atmosphere near-surface layer were used for the first time for calculating the CO2 flux in the Black Sea waters. The results of analysis of the CO2 flux variability on different time scales are represented. The performed calculations show that the CO2 evacuation prevails in a warm season, whereas its invasion-in a cold season. During the off-season transitions, the water area state is close to equilibrium. The timing limits of the seasons are not constant and vary practically each year. Probable reasons of a CO2 flux seasonal variability are considered. Possible role of the abiogenic, biogenic and anthropogenic factors is assessed as a cause of the observed intensity fluctuations of the CO2 exchange between the sea and the atmosphere. It is shown that on the synoptic time scale, the CO2 flux is characterized by a narrower oscillations' amplitude as compared to its seasonal and inter-annual variability. It is noted that small-scale temporal variability of the CO2 flux is more pronounced during the cold season. The features of the carbon cycle in the Black Sea coastal waters are considered. Possibility of using information on the CO2 flux intensity and direction for assessing the water area ecological state is discussed.

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2011

Geol. Mag.

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Oceans and the Atmospheric Carbon Content

Cited by 8 publications

References 210 publications

Variability of the CO2 Flux on the Water-Atmosphere Interface in the Black Sea Coastal Waters on Various Time Scales in 2010–2014

Variability of the CO2 Flux on the Water-Atmosphere Interface in the Black Sea Coastal Waters on Various Time Scales in 2010–2014

Variability of the CO2 Flux on the Water-Atmosphere Interface in the Black Sea Coastal Waters on Various Time Scales in 2010–2014

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