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Proceedings of OceanObs'09: Sustained Ocean Observations and Information for Society

COMMUNITY WHITE PAPER10.5270/OceanObs09.cwp.56

Observational Needs of Dynamic Green Ocean Models

Corinne Le Quéré(1), Shubha Sathyendranath(2), Vogt Meike(3), Erik.T. Buitenhuis(4), Laurent Bopp(5), Scott Doney(6), Stephanie Dutkiewicz(7), Richard J. Geider(8), Sandy Harrison(9), Christine Klaas(10), Louis Legendre(11), Stephane Pesant(12), Trevor Platt(2), Colin Prentice(13), Richard Rivkin(14), Dieter Wolf-Gladrow(10), Yasuhiro Yamanaka(15)

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The numerical modelling community is an important user group of ocean observations requiring data of global coverage for model parameterisation and evaluation. Dynamic Green Ocean Models (DGOMs) are a class of ocean biogeochemistry models that represent various types of plankton with distinct functions in food webs and biogeochemical cycles. DGOMs are used to study the feedbacks between climate and ocean biogeochemistry, particularly those mediated by ecosystem dynamics that influence CO2, DMS, and N2O fluxes to and from the atmosphere. DGOMs require experimental data for the parameterization of plankton growth and loss rates and of ecological interactions, and a range of observations for their evaluation. The most urgent data needs are: (1) decadal trends in surface ocean pCO2 and sub-surface O2, (2) biomass (in carbon concentration) and (3) growth rates as a function of temperature for the important plankton types, and (4) sinking flux of particulate organic carbon. A global coverage is essential to evaluate the model mean state. Repeated measurements for all seasons are most useful to evaluate the model response to environmental change. These data can be obtained by a combination of platforms, including remote sensing, repeat sections and gliders, and oceanic and atmospheric time-series stations.

1School of Environment Sciences, University of East Anglia; The British Antarctic Survey, University Drive, Norwich, NR4 7TJ UK; High Cross, Madingley Road, Cambridge CB3 0ET, United Kingdom
2Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH, UK
3Institute for Biogeochemistry and Pollutant Dynamics, ETH Zürich, CHN E23.2, University Str. 16, CH-8092 Zurich Switzerland
4School of Environment Sciences, University of East Anglia, University Drive, Norwich, NR4 7TJ UK
5Laboratoire des Sciences du Climat et de l'Environnement, Orme des Merisiers, Bat. 709, F-91191 Gif-sur-Yvette, France
6Woods Hole Oceanographic Institution, Clark 424, MS#25, Woods Hole, Ma 02543, USA
7Massachusetts Institutes of Technology, 77 Massachusetts Av. Cambridge, MA 02139-4307, USA
8Dept. for Biological Sciences, Univ. of Essex, Colchester CO4 3SQ,, UK
9School of Geographical Sciences, Univ. of Bristol, University Road, Bristol BS8 SS, UK
10Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, D-27570 Bremerhaven, Germany
11Laboratoire d'Océanographie de Villefranche, B.P. 08, Villefranche-sur-Mer, 06 238 Cedex, France
12Laboratoire d'Océanographie de Villefranche, B.P. 08, 06 238 Villefranche-sur-Mer, Cedex, France
13QUEST (Quantifying and Understanding the Earth System), Dept. of Earth Sciences, Univ. of Bristol, Queen's Road, Bristol BS8 1RJ, UK
14Ocean Sciences Centre, Memorial Univ., St. John's, Newfoundland A1C 5S7, Canada
15Graduate School of Environmental Earth Science, Hokkaido Univ., Kita 10, Nishi 5, Kita-ku Sapporo 060-0810, Japan

Correspondence should be addressed to E-mail: c.lequere@uea.ac.uk

This paper shall be cited as:

Le Quéré, C. & Co-Authors (2010). "Observational Needs of Dynamic Green Ocean Models" in Proceedings of OceanObs’09: Sustained Ocean Observations and Information for Society (Vol. 2), Venice, Italy, 21-25 September 2009, Hall, J., Harrison, D.E. & Stammer, D., Eds., ESA Publication WPP-306, doi:10.5270/OceanObs09.cwp.56

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