The University of Southampton
University of Southampton Institutional Repository

Towards closure of regional heat budgets in the North Atlantic using Argo floats and surface flux datasets

Wells, N.C., Josey, S.A. and Hadfield, R.E. (2009) Towards closure of regional heat budgets in the North Atlantic using Argo floats and surface flux datasets Ocean Science, 5, (2), pp. 59-72.

Record type: Article


The upper ocean heat budget (0–300 m) of the North Atlantic from 20°–60° N is investigated using data from Argo profiling floats for 1999–2005 and the NCEP/NCAR and NOC surface flux datasets. Estimates of the different terms in the budget (heat storage, advection, diffusion and surface exchange) are obtained using the methodology developed by Hadfield et al. (2007a, b). The method includes optimal interpolation of the individual profiles to produce gridded fields with error estimates at a 10°×10° grid box resolution. Closure of the heat budget is obtained within the error estimates for some regions – particularly the eastern subtropical Atlantic – but not for those boxes that include the Gulf Stream. Over the whole range considered, closure is obtained for 13 (9) out of 20 boxes with the NOC (NCEP/NCAR) surface fluxes. The seasonal heat budget at 20–30° N, 35–25° W is considered in detail. Here, the NCEP based budget has an annual mean residual of ?55±35 Wm?2 compared with a NOC based value of ?4±35 Wm?2. For this box, the net heat divergence of 36 Wm?2 (Ekman=?4 Wm?2, geostrophic=11 Wm?2, diffusion=29 Wm?2) offsets the net heating of 32 Wm?2 from the NOC surface heat fluxes. The results in this box are consistent with an earlier evaluation of the fluxes using measurements from research buoys in the subduction array which revealed biases in NCEP but good agreement of the buoy values with the NOC fields.

Full text not available from this repository.

More information

Published date: 2009


Local EPrints ID: 71937
ISSN: 1812-0792
PURE UUID: 8f5f5fbb-1fee-4093-8434-55d4dcbc3cbb

Catalogue record

Date deposited: 11 Jan 2010
Last modified: 18 Jul 2017 23:57

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton:

ePrints Soton supports OAI 2.0 with a base URL of

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.