Greenland Near-Surface Land Air Temperature Data from Berkeley Earth Present Some Surprises

I enjoy surprises in data, especially when they might make alarmists unhappy. Willis Eschenbach’s post Greenland Is Way Cool at WattsUpWithThat prompted me to take a look at the Berkeley Earth edition of the Greenland TAVG temperature data. See Figure 1, which presents the graph of the annual Berkeley Earth TAVG temperature (not anomaly) data…

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A Synthesis of Papers about the Madden-Julian Oscillation under Anthropogenic Warming

Maloney, et al. (2019) Madden–Julian oscillation changes under anthropogenic warming (paywalled) is a summary of a gazillion papers (well, that may be an exaggeration) about the future of the Madden-Julian oscillation in an anthropogenic-warming world. There’s an assumption there, isn’t there? The MJO is of great interest to many weather forecasters. The abstract of Maloney,…

Have The Poorest Countries Been Hit Hardest By Climate Change/Global Warming?

One of the constantly repeated, sympathy-seeking (and basis for wealth distribution) messages by politicians, by alarmists, by the mainstream media, and by brainwashed good-intentioned people, is that the world’s poorest countries have been hit hardest by human-induced global warming/climate change. Is it true or just some more of the constant stream of global warming/climate change…

WMO Reasoning behind Two Sets of “Normals” a.k.a. Two Periods of Base Years for Anomalies

Most of us are familiar with the World Meteorological Organization (WMO)-recommended 30-year period for “normals”, which are also used as base years against which anomalies are calculated. Most, but not all, climate-related data are referenced to 30-year periods. Presently the “climatological standard normals” period is 1981-2010. These “climatological standard normals” are updated every ten years…

EXAMPLES OF HOW AND WHY THE USE OF A “CLIMATE MODEL MEAN” AND THE USE OF ANOMALIES CAN BE MISLEADING

THE POST HAS BEEN UPDATED.  SEE THE UPDATE AT THE END OF THE POST: Alternate Title: An Average of Climate Models, Which Individually Give Wrong Answers, Cannot, By Averaging Them, Give the Right Answer, So A Model Mean Can Be Very Misleading. And The Use of Anomalies in Model-Data Comparisons, When Absolute Values Are Known,…