Feeds:
Posts
Comments

Search Results for 'greenhouse gases'

Over the last few years I’ve written lots of articles relating to the inappropriately-named “greenhouse” effect and covered some topics in great depth. I’ve also seen lots of comments and questions which has helped me understand common confusion and misunderstandings. This article, with huge apologies to regular long-suffering readers, covers familiar ground in simple terms. It’s […]

Read Full Post »

Here is an article from Leonard Weinstein. (It has also been posted in slightly different form at The Air Vent). Readers who have been around for a while will remember the interesting discussion Convection, Venus, Thought Experiments and Tall Rooms Full of Gas – A Discussion in which myself, Arthur Smith and Leonard all put forward a point […]

Read Full Post »

In Kramm & Dlugi On Illuminating the Confusion of the Unclear I pointed out that the authors of Scrutinizing the atmospheric greenhouse effect and its climatic impact are in agreement with climate science on the subject of “back radiation” from the atmosphere contributing to the surface temperature. No surprise to people familiar with the basics of radiative […]

Read Full Post »

One question that has intrigued me for a while – how much of the transmittance (and change in transmittance) from CO2 in the atmosphere is caused by weak lines, and how much is caused by the “far wings” of individual lines. Take a look back at Part Nine. Here is the calculated change in transmittance […]

Read Full Post »

The subject of atmospheric heating rates is one which is worth spending time on. What is a heating rate? To see the usefulness of a heating rate let’s consider the per capita income of a country. Per capita income compares the ratio of total $ to the total population. If we compare the total income […]

Read Full Post »

In his excellent book, A First Course in Atmospheric Radiation, Grant Petty introduces a number of spectral measurements of atmospheric radiation which are very illuminating. In this article I am going to reproduce them, along with a lot of Petty’s comments and explanations – hard to improve on what he has to say. (See the […]

Read Full Post »

In the last article we looked at some results from Grant Petty. In essence they demonstrate the huge variation in the transmittance of CO2 through the atmosphere with the wavelength of radiation. I decided it might be interesting to try and reproduce these results using the HITRAN database. This allows a closer examination of which […]

Read Full Post »

I thought some data provided in Grant Petty’s excellent book would be valuable as it helps explain some important points about the role of CO2 in the atmosphere. Just recently I was kindly given access to the HITRAN database by Dr. Laurence S. Rothman but I’ve spent a bit too much time in the last few […]

Read Full Post »

The “Greenhouse” Effect Explained in Simple Terms – summarizing the effect, attempting to “make it simple but not too simple” with many links to other articles A series providing more explanation of how the atmosphere absorbs and emits radiation, including a simple model to provide insight. The model uses fictitious molecules pH2O and pCO2 (which have only […]

Read Full Post »

In the model simulations up until now the pCO2 band has been a constant – a fixed absorption band between the wavenumbers 600-800 cm-1. In this article we will see what happens when the band shape changes, but the “area under the curve” stays the same. If you are new to the series, take a […]

Read Full Post »

Next »