Author Archives: gymnosperm

The Temperature and Altitude of Radiation to Space III

Posted on April 14, 2019

We left of the last post having found that brightness temperature was hopelessly asymmetric to radiance in the main CO2 deviation from the Planck temperature. This discovery dashed all hope of using brightness temperature to determine the temperatures of the … Continue reading →

Posted in MODTRAN | Leave a comment

The Temperature and Altitude of Radiation to Space II

Posted on April 5, 2019

We left off the last post having accommodated MODTRAN radiance to the Planck curves, and having promised to derive the temperatures of the individual lines from an inversion of the Planck radiance formula to give the Planck brightness temperature. Unfortunately, … Continue reading →

Posted in Climate | 1 Comment

The Temperature and Altitude of Radiation to Space

Posted on March 3, 2019

This post was begun some time ago and we experienced so much trouble replicating the MODTRAN Planck curves that two rambling subsequent posts transpired recounting the misadventure. Here, and here. We eventually concluded that the Planck curves in the MODTRAN … Continue reading →

Posted in Greenhouse Spectra, MODTRAN, Radiance | 1 Comment

Alalyzing the MODTRAN Planck Curves

Posted on February 20, 2019

This post reports on some progress on resolving our difficulty replicating MODTRAN Planck curves in a prior post. In a personal communication, Dr. David Archer kindly provided the spreadsheet used to produce the MODTRAN curves. The standard wave number Planck … Continue reading →

Posted in MODTRAN, Radiance | 6 Comments

Trouble with Trancendental Numbers

Posted on January 21, 2019

The title of this post was supposed to be The Temperature and Altitude of Radiation to Space. With a bit of luck and perseverance that post will happen, but we’ve had so much trouble, the trouble itself seems to warrant a … Continue reading →

Posted in Climate | 2 Comments

A Brief History of Muddled Thinking about the Greenhouse Effect

Posted on December 31, 2018

We humans kick up a lot of dust and burn a lot of stuff. A concept developed in the 1970’s was the “human volcano”. There is a lot of truth in this analogy. Back then, despite dead wrong rants, the … Continue reading →

Posted in Climate, Greenhouse Effect, Greenhouse Spectra, MODTRAN | 6 Comments

Berkeley Earth Absolute Temperature and the Remarkable Closeness of TMAX Lows and TMIN Highs

Posted on December 25, 2018

Bob Tisdale recently did a series of posts exploring the differences between using absolute temperature and temperature anomaly to understand the recent temperature evolution of our planet. Bob was interested in the extracted TMAX highs and TMIN lows, and showed … Continue reading →

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