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Impacts of climate modes on air–sea heat exchange in the Red Sea

Impacts of climate modes on air–sea heat exchange in the Red Sea
Impacts of climate modes on air–sea heat exchange in the Red Sea
The impacts of various climate modes on the Red Sea surface heat exchange are investigated using the MERRA reanalysis and the OAFlux satellite reanalysis datasets. Seasonality in the atmospheric forcing is also explored. Mode impacts peak during boreal winter [December–February (DJF)] with average anomalies of 12–18 W m?2 to be found in the northern Red Sea. The North Atlantic Oscillation (NAO), the east Atlantic–west Russia (EAWR) pattern, and the Indian monsoon index (IMI) exhibit the strongest influence on the air–sea heat exchange during the winter. In this season, the largest negative anomalies of about ?30 W m?2 are associated with the EAWR pattern over the central part of the Red Sea. In other seasons, mode-related anomalies are considerably lower, especially during spring when the mode impacts are negligible. The mode impacts are strongest over the northern half of the Red Sea during winter and autumn. In summer, the southern half of the basin is strongly influenced by the multivariate ENSO index (MEI). The winter mode–related anomalies are determined mostly by the latent heat flux component, while in summer the shortwave flux is also important. The influence of the modes on the Red Sea is found to be generally weaker than on the neighboring Mediterranean basin.
Atmosphere-ocean interaction, Air-sea interaction, Climate variability, Heat budgets/fluxes
0894-8755
2665-2681
Abualnaja, Yasser
97e801e8-ff05-4e00-a4e8-06f2787cee56
Papadopoulos, Vassilis P.
1a7bb473-67a3-4990-94db-645d68eac593
Josey, Simon A.
2252ab7f-5cd2-49fd-a951-aece44553d93
Hoteit, Ibrahim
32f566c5-2f59-4929-80cd-0f06c9631139
Kontoyiannis, Harilaos
926d7e44-97a3-4d75-8123-3e6b3447a33d
Raitsos, Dionysios E.
624a491c-804a-4704-83ac-b7e8adcc0ce1
Abualnaja, Yasser
97e801e8-ff05-4e00-a4e8-06f2787cee56
Papadopoulos, Vassilis P.
1a7bb473-67a3-4990-94db-645d68eac593
Josey, Simon A.
2252ab7f-5cd2-49fd-a951-aece44553d93
Hoteit, Ibrahim
32f566c5-2f59-4929-80cd-0f06c9631139
Kontoyiannis, Harilaos
926d7e44-97a3-4d75-8123-3e6b3447a33d
Raitsos, Dionysios E.
624a491c-804a-4704-83ac-b7e8adcc0ce1

Abualnaja, Yasser, Papadopoulos, Vassilis P., Josey, Simon A., Hoteit, Ibrahim, Kontoyiannis, Harilaos and Raitsos, Dionysios E. (2015) Impacts of climate modes on air–sea heat exchange in the Red Sea. Journal of Climate, 28 (7), 2665-2681. (doi:10.1175/JCLI-D-14-00379.1).

Record type: Article

Abstract

The impacts of various climate modes on the Red Sea surface heat exchange are investigated using the MERRA reanalysis and the OAFlux satellite reanalysis datasets. Seasonality in the atmospheric forcing is also explored. Mode impacts peak during boreal winter [December–February (DJF)] with average anomalies of 12–18 W m?2 to be found in the northern Red Sea. The North Atlantic Oscillation (NAO), the east Atlantic–west Russia (EAWR) pattern, and the Indian monsoon index (IMI) exhibit the strongest influence on the air–sea heat exchange during the winter. In this season, the largest negative anomalies of about ?30 W m?2 are associated with the EAWR pattern over the central part of the Red Sea. In other seasons, mode-related anomalies are considerably lower, especially during spring when the mode impacts are negligible. The mode impacts are strongest over the northern half of the Red Sea during winter and autumn. In summer, the southern half of the basin is strongly influenced by the multivariate ENSO index (MEI). The winter mode–related anomalies are determined mostly by the latent heat flux component, while in summer the shortwave flux is also important. The influence of the modes on the Red Sea is found to be generally weaker than on the neighboring Mediterranean basin.

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Published date: April 2015
Keywords: Atmosphere-ocean interaction, Air-sea interaction, Climate variability, Heat budgets/fluxes
Organisations: Marine Systems Modelling

Identifiers

Local EPrints ID: 376562
URI: https://eprints.soton.ac.uk/id/eprint/376562
ISSN: 0894-8755
PURE UUID: b6d1471e-b5b4-4263-915a-bd7f5ea9e029

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Date deposited: 30 Apr 2015 09:48
Last modified: 17 Jul 2017 21:08

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Contributors

Author: Yasser Abualnaja
Author: Vassilis P. Papadopoulos
Author: Simon A. Josey
Author: Ibrahim Hoteit
Author: Harilaos Kontoyiannis
Author: Dionysios E. Raitsos

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