126580 Zhang_et_al-2018-Geophysical_Research_Letters.pdf (1.54 MB)
Strengthened Indonesian throughflow drives decadal warming in the Southern Indian Ocean
journal contribution
posted on 2023-05-19, 18:53 authored by Zhang, Y, Feng, M, Du, Y, Helen PhillipsHelen Phillips, Nathaniel BindoffNathaniel Bindoff, McPhaden, MJRemarkable warming of the Southern Indian Ocean during the recent two decades is assessed using a heat budget analysis based on the Estimating the Circulation and Climate of the Ocean version 4 release 3 model results. The annual mean temperature averaged in the upper-700m Southern Indian Ocean during 1998-2015 has experienced significant warming at a rate of 1.03×10-2℃/yr. A heat budget analysis indicates that the increase is mostly driven by decreased cooling from net air-sea heat flux and increased warming from heat advection. Increased ITF advection is the largest contributor to warming the upper 700m of the Southern Indian Ocean, while the reduction of surface turbulent heat flux is of secondary importance. These results expand our understanding of the decadal heat balance in the Indian Ocean and of Indo-Pacific decadal climate variability.
Funding
Department of Environment and Energy (Cwth)
History
Publication title
Geophysical Research LettersVolume
45Issue
12Pagination
6167-6175ISSN
0094-8276Department/School
Institute for Marine and Antarctic StudiesPublisher
Amer Geophysical UnionPlace of publication
2000 Florida Ave Nw, Washington, USA, Dc, 20009Rights statement
Copyright 2018 American Geophysical UnionRepository Status
- Restricted