Southern Ocean bottom water characteristics in CMIP5 models. Heuzé, C., Heywood, K. J., Stevens, D. P., & Ridley, J. K. Geophysical Research Letters, 40(April):1409--1414, 2013.
doi  abstract   bibtex   
Southern Ocean deep water properties and formation processes in climate models are indicative of their capability to simulate future climate, heat and carbon uptake, and sea level rise. Southern Ocean temperature and density averaged over 1986–2005 from 15 CMIP5 (Coupled Model Intercomparison Project Phase 5) climate models are compared with an observed climatology, focusing on bottom water. Bottom properties are reasonably accurate for half the models. Ten models create dense water on the Antarctic shelf, but it mixes with lighter water and is not exported as bottom water as in reality. Instead, most models create deep water by open ocean deep convection, a process occurring rarely in reality. Models with extensive deep convection are those with strong seasonality in sea ice. Optimum bottom properties occur in models with deep convection in the Weddell and Ross Gyres. Bottom Water formation processes are poorly represented in ocean models and are a key challenge for improving climate predictions.
@article{ Heuze2013,
  author = {Heuzé, Céline and Heywood, Karen J. and Stevens, David P.
	and Ridley, Jeff K.},
  title = {{Southern Ocean bottom water characteristics in CMIP5 models}},
  journal = {Geophysical Research Letters},
  year = {2013},
  volume = {40},
  pages = {1409--1414},
  number = {April},
  abstract = {Southern Ocean deep water properties and formation processes in climate
	models are indicative of their capability to simulate future climate,
	heat and carbon uptake, and sea level rise. Southern Ocean temperature
	and density averaged over 1986–2005 from 15 CMIP5 (Coupled Model
	Intercomparison Project Phase 5) climate models are compared with
	an observed climatology, focusing on bottom water. Bottom properties
	are reasonably accurate for half the models. Ten models create dense
	water on the Antarctic shelf, but it mixes with lighter water and
	is not exported as bottom water as in reality. Instead, most models
	create deep water by open ocean deep convection, a process occurring
	rarely in reality. Models with extensive deep convection are those
	with strong seasonality in sea ice. Optimum bottom properties occur
	in models with deep convection in the Weddell and Ross Gyres. Bottom
	Water formation processes are poorly represented in ocean models
	and are a key challenge for improving climate predictions.},
  doi = {10.1002/grl.50287},
  file = {:Users/reinhard/Documents/articles/mendeley//Heuzé et al‥ 2013. Geophysical Research Letters.pdf:pdf},
  issn = {00948276},
  keywords = {Bottom Water,CMIP5,Southern Ocean,climate models}
}

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