‘Potentially serious problems’. Advisable to view the linked blog post before commenting, it’s quite short.
– – –
See, I told you so — says Roy Spencer.
One of the most fundamental requirements of any physics-based model of climate change is that it must conserve mass and energy.
This is partly why I (along with Danny Braswell and John Christy) have been using simple 1-dimensional climate models that have simplified calculations and where conservation is not a problem.
. . .
Now, I just stumbled upon a paper from 2021 (Irving et al., A Mass and Energy Conservation Analysis of Drift in the CMIP6 Ensemble) which describes significant problems in the latest (CMIP5 and CMIP6) models regarding not only energy conservation in the ocean but also at the top-of-atmosphere (TOA, thus affecting global warming rates) and even the water vapor budget of the atmosphere (which represents the largest component of the global greenhouse effect).
These represent potentially serious problems when it comes to our reliance on climate models to guide energy policy. [Talkshop note – author’s emphasis]
It boggles my mind that conservation of mass and energy were not requirements of all models before their results were released decades ago.
Full post here.
via Tallbloke’s Talkshop
August 22, 2023 at 08:03AM
Iowa Climate Science Education 