Global Energy Balances … Except When It Doesn’t

By Willis Eschenbach – Re-Blogged From WUWT

I came across an interesting 2014 paper called The energy balance over land and oceans: an assessment based on direct observations and CMIP5 climate models. In it, they make a number of comparisons between observational data and 43 climate models regarding the large-scale energy flows of the planet. Here’s a typical graphic:

Figure 1. ORIGINAL CAPTION: “Fig. 7 Average biases (model—observations) in downward solar radiation at Earth’s surface calculated in 43 CMIP5 models at 760 sites from GEBA. Units Wm−2”. The “CMIP5” is the “Computer Model Intercomparison Project 5”, the fifth iteration of a project which compares the various models and how well they perform.

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Greenland Is Way Cool

By Willis Eschenbach – Re-Blogged From WUWT

As a result of a tweet by Steve McIntyre, I was made aware of an interesting dataset. This is a look by Vinther et al. at the last ~12,000 years of temperatures on the Greenland ice cap. The dataset is available here.

Figure 1 shows the full length of the data, along with the change in summer insolation at 75°N, the general location of the ice cores used to create the temperature dataset.

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Interesting Charts

 

By Bob Shapiro

Here are two charts, both relating to Climate, that I find very interesting.

NOAA collects US temperature data from over 1000 stations across the country. They’ve been doing this every day (mostly) for years and years. They go through the data as it comes in to correct mistakes – the usual QA process. But in recent years, they have started historical adjustments – 5 major adjustments over a recent 6 year period.

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Study: Climate Models Underestimate Cooling Effect of Daily Cloud Cycle

From PRINCETON UNIVERSITY – Re-Blogged From http://www.WattsUpWithThat.com

Princeton University researchers have found that the climate models scientists use to project future conditions on our planet underestimate the cooling effect that clouds have on a daily — and even hourly — basis, particularly over land.

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The Difference Between Energy, Work and Power – and Why it Matters to Climate Prediction

By Eric Worrall – Re-Blogged From http://www.WattsUpWithThat.com

storm-cloud

How often have you heard claims that a warmer [climate] will be more energetic – that we shall all experience more violent storms, more rainfall, more storm damage, because the atmosphere is “absorbing more energy”?

Such claims are based on a fundamental misunderstanding of the nature of energy.

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