https://gregladen.com/blog/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-global-warming/ Tue, 23 Dec 2014 20:20:00 +0000 hourly 1 https://wordpress.org/?v=6.4.6 https://gregladen.com/blog/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-global-warming/#comment-483415 Tue, 23 Dec 2014 20:20:00 +0000 http://scienceblogs.com/gregladen/?p=20454#comment-483415 […] Big fight breaks out about heat in the deep ocean. Judith Curry and others get it wrong again. And then it happened again right away. […]

]]> https://gregladen.com/blog/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-global-warming/#comment-483414 Sat, 11 Oct 2014 22:48:32 +0000 http://scienceblogs.com/gregladen/?p=20454#comment-483414 “…continuous upper ocean warming (0.36?±?0.08?W?m-2) since 1966…” http://onlinelibrary.wiley.com/doi/10.1002/2014GL061881/abstract

]]> https://gregladen.com/blog/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-global-warming/#comment-483413 Sat, 11 Oct 2014 04:48:09 +0000 http://scienceblogs.com/gregladen/?p=20454#comment-483413 enSKog: Do you know if the thermal expansion of (sea)water has much dependence on pressure?

]]> https://gregladen.com/blog/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-global-warming/#comment-483412 Sat, 11 Oct 2014 01:31:26 +0000 http://scienceblogs.com/gregladen/?p=20454#comment-483412 Craig Thomas: Good question. But if you calculate the heat needed to melt all the ice that’s melting (upwards of a trillion tonnes per year), you find it’s small, about 0.01-0.02 W/m2.

]]> https://gregladen.com/blog/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-global-warming/#comment-483411 Sat, 11 Oct 2014 00:20:30 +0000 http://scienceblogs.com/gregladen/?p=20454#comment-483411 Re Omega Centauri @ #6, sea water does not show the density maximum like pure water. The dependence on temperature is lower at low temperatures but remains negative to below 0 C so it is possible to derive temperature information from volume data.

]]> https://gregladen.com/blog/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-global-warming/#comment-483410 Tue, 07 Oct 2014 23:44:04 +0000 http://scienceblogs.com/gregladen/?p=20454#comment-483410 […] stored in the planet, so temperatures in the future will rise more than anticipated.  However, as Greg Laden discusses on his blog, this could mainly be a first step towards better understanding the ocean’s role in global […]

]]> https://gregladen.com/blog/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-global-warming/#comment-483409 Tue, 07 Oct 2014 06:29:10 +0000 http://scienceblogs.com/gregladen/?p=20454#comment-483409 What about all the:
– ice that has heated (this is not measured)
– ice that has melted (this “heat” is by definition “missing”, as it doesn’t equate to any temperature changes)

]]> https://gregladen.com/blog/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-global-warming/#comment-483408 Mon, 06 Oct 2014 22:42:29 +0000 http://scienceblogs.com/gregladen/?p=20454#comment-483408 […] http://scienceblogs.com/gregladen/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-glo… […]

]]> https://gregladen.com/blog/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-global-warming/#comment-483407 Mon, 06 Oct 2014 22:31:36 +0000 http://scienceblogs.com/gregladen/?p=20454#comment-483407 You need the word deep in that last sentence.

]]> https://gregladen.com/blog/2014/10/06/improved-understanding-of-the-role-of-the-oceans-in-global-warming/#comment-483406 Mon, 06 Oct 2014 22:16:24 +0000 http://scienceblogs.com/gregladen/?p=20454#comment-483406 The density change with temperature of seawater warms/cools is not linear. In fact there is a maximum density at a few degrees C. So heat that warms deep water will have less effect of ocean volume than that which heats shallow water. So volume changes in the overall ocean (sea level rise, if you can account for water inputs/outputs (melting landice, changes in land storage etc.)), don’t directly tell you how much heat has been absorbed by the oceans.

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