Emulation, ±4 W/m² Long Wave Cloud Forcing Error, and Meaning

Guest post by Pat Frank My September 7 post describing the recent paper published in Frontiers in Earth Science on GCM physical error analysis attracted a lot of attention, consisting…

Additional Comments on the Frank (2019) “Propagation of Error” Paper

From Dr Roy Spencer’s Blog September 12th, 2019 by Roy W. Spencer, Ph. D. NOTE: This post has undergone a few revisions as I try to be more precise in…

Model Charged with Excessive Use of Forcing

Guest Post by Willis Eschenbach The GISS Model E is the workhorse of NASA’s climate models. I got interested in the GISSE hindcasts of the 20th century due to an…