Ocean–Atmosphere Interactions in the Barents Sea from Reanalyses Data

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Ocean–Atmosphere Interactions in the Barents Sea from Reanalyses Data. / Kalavichchi, K. A.; Bashmachnikov, I. L.

In: Izvestiya - Atmospheric and Ocean Physics, Vol. 57, No. 2, 01.03.2021, p. 159-169.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{ed4df285027f43cfa18a63c717ae8a7c,

title = "Ocean–Atmosphere Interactions in the Barents Sea from Reanalyses Data",

abstract = "Abstract: In this study we detail the mechanism of positive feedback linking variability of the oceanic heat flux in the Barents Sea, the sea-ice area and the atmospheric circulation over the region using oceanic and atmospheric reanalyses. The results show that an increase in the oceanic heat flux through the western boundary of the Barents Sea goes much faster than in the Norwegian Atlantic Slope Current in the eastern Norwegian Sea. With an increase in the oceanic heat flux in the Barents Sea, the ice edge retreats and the total vertical ocean–atmosphere heat fluxes weaken in the southwestern part of the sea and increase west of Novaya Zemlya and in the northern part of the sea. The latter is due to the increased ice-free area in the sea. The increased heat fluxes into the Barents Sea are also accompanied by a winter growth of the sea-surface atmospheric pressure over the sea with maximum changes in the southeastern Barents Sea. This leads to a localization of the cyclonic circulation in the northwestern Barents Sea, a growth in the atmospheric heat transport across the southern boundary, and a decrease of the atmospheric heat transport across the northern boundary. The convergence of atmospheric heat flux in the given region increases near the sea surface (1000–975 hPa), but decreases at higher levels (975–100 hPa).",

keywords = "Barents Sea, oceanic and atmospheric heat fluxes, positive feedback, sea-ice cover, VARIABILITY, HEAT FLUXES, ICE, CLIMATE",

author = "Kalavichchi, {K. A.} and Bashmachnikov, {I. L.}",

year = "2021",

month = mar,

day = "1",

doi = "10.1134/s0001433821020067",

language = "English",

volume = "57",

pages = "159--169",

journal = "Izvestiya - Atmospheric and Oceanic Physics",

issn = "0001-4338",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "2",

}

RIS

TY - JOUR

T1 - Ocean–Atmosphere Interactions in the Barents Sea from Reanalyses Data

AU - Kalavichchi, K. A.

AU - Bashmachnikov, I. L.

PY - 2021/3/1

Y1 - 2021/3/1

N2 - Abstract: In this study we detail the mechanism of positive feedback linking variability of the oceanic heat flux in the Barents Sea, the sea-ice area and the atmospheric circulation over the region using oceanic and atmospheric reanalyses. The results show that an increase in the oceanic heat flux through the western boundary of the Barents Sea goes much faster than in the Norwegian Atlantic Slope Current in the eastern Norwegian Sea. With an increase in the oceanic heat flux in the Barents Sea, the ice edge retreats and the total vertical ocean–atmosphere heat fluxes weaken in the southwestern part of the sea and increase west of Novaya Zemlya and in the northern part of the sea. The latter is due to the increased ice-free area in the sea. The increased heat fluxes into the Barents Sea are also accompanied by a winter growth of the sea-surface atmospheric pressure over the sea with maximum changes in the southeastern Barents Sea. This leads to a localization of the cyclonic circulation in the northwestern Barents Sea, a growth in the atmospheric heat transport across the southern boundary, and a decrease of the atmospheric heat transport across the northern boundary. The convergence of atmospheric heat flux in the given region increases near the sea surface (1000–975 hPa), but decreases at higher levels (975–100 hPa).

AB - Abstract: In this study we detail the mechanism of positive feedback linking variability of the oceanic heat flux in the Barents Sea, the sea-ice area and the atmospheric circulation over the region using oceanic and atmospheric reanalyses. The results show that an increase in the oceanic heat flux through the western boundary of the Barents Sea goes much faster than in the Norwegian Atlantic Slope Current in the eastern Norwegian Sea. With an increase in the oceanic heat flux in the Barents Sea, the ice edge retreats and the total vertical ocean–atmosphere heat fluxes weaken in the southwestern part of the sea and increase west of Novaya Zemlya and in the northern part of the sea. The latter is due to the increased ice-free area in the sea. The increased heat fluxes into the Barents Sea are also accompanied by a winter growth of the sea-surface atmospheric pressure over the sea with maximum changes in the southeastern Barents Sea. This leads to a localization of the cyclonic circulation in the northwestern Barents Sea, a growth in the atmospheric heat transport across the southern boundary, and a decrease of the atmospheric heat transport across the northern boundary. The convergence of atmospheric heat flux in the given region increases near the sea surface (1000–975 hPa), but decreases at higher levels (975–100 hPa).

KW - Barents Sea

KW - oceanic and atmospheric heat fluxes

KW - positive feedback

KW - sea-ice cover

KW - VARIABILITY

KW - HEAT FLUXES

KW - ICE

KW - CLIMATE

UR - http://www.scopus.com/inward/record.url?scp=85105254891&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/151023f8-62b6-33af-97cd-20496f787451/

U2 - 10.1134/s0001433821020067

DO - 10.1134/s0001433821020067

M3 - Article

AN - SCOPUS:85105254891

VL - 57

SP - 159

EP - 169

JO - Izvestiya - Atmospheric and Oceanic Physics

JF - Izvestiya - Atmospheric and Oceanic Physics

SN - 0001-4338

IS - 2

ER -

ID: 77073844