The University of Southampton
University of Southampton Institutional Repository

A new air-sea interaction gridded dataset from ICOADS with uncertainty estimates.

A new air-sea interaction gridded dataset from ICOADS with uncertainty estimates.
A new air-sea interaction gridded dataset from ICOADS with uncertainty estimates.
The exchange, or flux, of heat between the oceans and atmosphere is an important driver of the global oceanic and atmospheric circulations but remains poorly quantified. Direct measurement of heat flux remains a research activity and so global heat flux datasets are generated using observations of winds, air and sea temperatures and humidity as input to heat flux parameterisations known as "bulk formulae". We remain dependent on the observations from merchant ships in the Voluntary Observing Ships (VOS) program which are archived in the International Comprehensive Ocean-Atmosphere Dataset (ICOADS): measurements from buoys are sparse and satellites cannot accurately recover all the variables required for heat flux calculation.
Careful analysis of VOS data is necessary to produce gridded datasets of meteorological variables and fluxes with the accuracy required for climate research. Past in situ flux datasets have averaged observations on monthly timescales in order to reduce random uncertainty. It has therefore been hard to understand the contributions to observed variability from measurement errors, poor sampling or natural variability. The new dataset, which covers the period 1973 to 2006, avoids this problem by first constructing daily mean fields using optimal interpolation. This allows each component of variability to be handled correctly and, for the first time, uncertainty estimates to be produced. New bias adjustments have also been developed and applied. The new dataset is described and a preliminary comparison with flux estimates from moored buoys, satellites and atmospheric reanalysis models is presented.
air-sea interaction, flux, ocean, global, dataset, sensible heat, latent heat, shortwave radiation, longwave radiation, ICOADS, ship observations, bulk formulae, buoy intercomparison
0003-0007
645-656
Berry, David I.
55ffc590-f459-49c8-aecf-842d65aeb0fb
Kent, Elizabeth C.
ea23f6f0-ccf6-4702-a5c9-184e9c5d4427
Berry, David I.
55ffc590-f459-49c8-aecf-842d65aeb0fb
Kent, Elizabeth C.
ea23f6f0-ccf6-4702-a5c9-184e9c5d4427

Berry, David I. and Kent, Elizabeth C. (2009) A new air-sea interaction gridded dataset from ICOADS with uncertainty estimates. Bulletin of the American Meteorological Society, 90 (5), 645-656. (doi:10.1175/2008BAMS2639.1).

Record type: Article

Abstract

The exchange, or flux, of heat between the oceans and atmosphere is an important driver of the global oceanic and atmospheric circulations but remains poorly quantified. Direct measurement of heat flux remains a research activity and so global heat flux datasets are generated using observations of winds, air and sea temperatures and humidity as input to heat flux parameterisations known as "bulk formulae". We remain dependent on the observations from merchant ships in the Voluntary Observing Ships (VOS) program which are archived in the International Comprehensive Ocean-Atmosphere Dataset (ICOADS): measurements from buoys are sparse and satellites cannot accurately recover all the variables required for heat flux calculation.
Careful analysis of VOS data is necessary to produce gridded datasets of meteorological variables and fluxes with the accuracy required for climate research. Past in situ flux datasets have averaged observations on monthly timescales in order to reduce random uncertainty. It has therefore been hard to understand the contributions to observed variability from measurement errors, poor sampling or natural variability. The new dataset, which covers the period 1973 to 2006, avoids this problem by first constructing daily mean fields using optimal interpolation. This allows each component of variability to be handled correctly and, for the first time, uncertainty estimates to be produced. New bias adjustments have also been developed and applied. The new dataset is described and a preliminary comparison with flux estimates from moored buoys, satellites and atmospheric reanalysis models is presented.

Full text not available from this repository.

More information

Submitted date: 1 August 2008
Published date: May 2009
Keywords: air-sea interaction, flux, ocean, global, dataset, sensible heat, latent heat, shortwave radiation, longwave radiation, ICOADS, ship observations, bulk formulae, buoy intercomparison

Identifiers

Local EPrints ID: 55576
URI: https://eprints.soton.ac.uk/id/eprint/55576
ISSN: 0003-0007
PURE UUID: a8c77db9-e16d-4e8c-b4ea-2d2ae0236981

Catalogue record

Date deposited: 05 Aug 2008
Last modified: 13 Mar 2019 20:36

Export record

Altmetrics

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.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of https://eprints.soton.ac.uk/cgi/oai2

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.

×