March 2014 Global Surface (Land+Ocean) Temperature Anomaly Update

INITIAL QUESTION Once upon a time, the NCDC published its monthly global land+ocean surface temperature anomaly data around the 15th of the month. They have recently relaxed the dates of their monthly global state of the climate updates. The NCDC are now showing on the webpage here that they will be publishing their monthly global…

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Cowtan and Way (2013) Adjustments Exaggerate Climate Model Failings at the Poles and Do Little to Explain the Hiatus

We’ve already discussed Cowtan and Way’s infilling of HADCRUT4 data in the post On Cowtan and Way (2013) “Coverage bias in the HadCRUT4 temperature series and its impact on recent temperature trends”. The paper is available here. In that earlier post, I presented the following graph and noted: If we compare the HADCRUT4 data to…

Why Aren’t Global Surface Temperature Data Produced in Absolute Form?

The title question often appears during discussions of global surface temperatures. That is, GISS, Hadley Centre and NCDC only present their global land+ocean surface temperatures products as anomalies. The questions is: why don’t they produce the global surface temperature products in absolute form? In this post, I’ve included the answers provided by the three suppliers.…

Also-Rans: NCDC and GISS Global Surface Temperatures Finish 4th and 7th for 2013

Not a win, place or show between them. In other words, global surface temperatures are still stalled in the post-1997/98-El-Niño era. They are patiently waiting for another strong El Niño to release a batch of sunlight-created warm water from below the surface of the tropical Pacific before they resume their step-like climb in Trenberth-declared “big…

September 2013 Global Surface (Land+Ocean) Temperature Anomaly Update

Sorry this is so late. The NCDC and GISS updates were delayed by the government shutdown. Because it is so late, it includes the September 2013 HADCRUT4 data from the UKMO. It’s so late I’ve already published the Preliminary October 2013 sea surface temperature update here. Initial Notes: This post contains graphs of running trends…