IR Back Radiation and
Observational Meteorologial Evidence from Karesuando,
Sweden at Latitude 68 N, 326 m asl
BSc, meteorologist, Stockholm University, Civil engineer, electronics, Royal Institute of Technology, Stockholm, PhD, institution of Paleogeophysics & geodynamics, Stockholm University
There is a wealth of Swedish meteorological data since about 300 years ago which has been read 3 times a day at 7 AM, 1 PM and 7 PM. Added to that minimum and maximum temperatures are collected. The variables are pressure, air temperature, water vapor pressure, relative humidity, wind speed , wind direction , cloudiness (a scale 1-8 parts of sky covered by clouds), precipitation, snow cover depth and general weather (raining, snowing mist etc.).
For a long time such data could be bought in a yearly book “Meteorological Observations in Sweden” covering data from 14 of the biggest Swedish stations until they stopped producing them and I think that 1977 was the last year of publication. The accumulated amount of meteorological data that exists in Sweden is just staggering.
The preoccupation with one single meteorological variable such as global temperature is misleading in several ways. The physics in the atmosphere only works in real time at a specific place. Any averaging destroys or limits the possibility to identify and check the processes at hand in the real atmosphere. It is also necessary to observe several variables at the same time to develop well found ideas about how the physical processes interact with each other and which ones are dominating at specific times and places. To do this prime data times series are of profound importance. Such series are found in abundance in the excellent publication “Meteorological Observations in Sweden”. I personally own this publication from 1922-1977.
By chance I found an old chart I made at least 30 years ago which you can see below. It shows wind, cloud and temperature time series from Karesuando during four months, January, March, July and November. Karesuando is situated quite far above the polar circle so during January there is no solar irradiation at all reaching the station.
Wind, Cloud and Temperature data from Karesusando
A message from nature about cloud cover, temperature and wind
The time series show 4 values per 24 hour period. It is possible to observe daily variations as well as cold spells covering several days up to a week. Of special interest is to see how well the cloud cover is correlated with temperature during different seasons. The wind speed can be checked to separate between local and regional influences. If there is no wind speed the influence is for sure more local. When there is no solar insolation the daily temperature variations are minimal as can be seen in the January time series. On the contrary the July temperature time series express a much larger daily temperature variation although the amplitude varies. The strongest daily temperature variation in Karesuando can be found in Mars [March] during a five day period with no or little clouds and hardly any wind. All this is actually nothing new. Any Swedish farmer knows about such variations, without knowing anything about for example “IR back radiation” and its presumed power to destroy earth in the future.
One deduction about the existence of IR back radiation in nature.
The Karesuando temperature time series show temperature swings within a week between 20 and 30 degrees Celsius. That is a lot. They can be observed in late January, Late March and late November. All the maximum temperature swings occur during calm conditions when there was no or little wind in Karesuando for days. It tells a simple truth. The cold air is (partially) produced locally at the surface of Karesuando during these 2-3 days periods. This can only happen by strong IR radiation from the ground when there are no or little clouds in the sky. On the other hand it can be observed that the temperature in Karesuando always are warmer when there is a full cloud cover during periods with large solar energy deficits as there were in January, March and November.
The global warming belief and the impact of carbon dioxide on climate belief (AGW) rely on a hypothetical existence of a large IR back radiation (+300 W/m^2) working both day and night. If there exists an IR back radiation of practical importance it is only developed when there is a cloud cover. In that case it is not carbon dioxide that emits the IR radiation downwards; it is ice crystals or water droplets.
My simple question to IPCC and all global warming enthusiasts believing in global warming is: How can you explain the observed evidence from Karesuando and still claim there is any scientific reason to believe in the existence of a +300 W/m^2 back radiation working both day and night? Any person can feel the impact of such an energy flow by holding ones hand near an electrical 2kW kitchen stove at a distance of about 1 meter.
There is absolutely no need for me to get this common sense article peer reviewed and acknowledged by IPCC or any other main stream authority. Observational evidence such as the meteorological data from Karesuando beats any unproven hypothesis if these two options are incompatible. My conclusion is:
The IR back radiation of +300 W/m² that IPCC claims to be a reality does not exist at (close to) a measurable level. The net IR back radiation that does exist and matter quantitatively (besides from sun) has its origin from clouds and dust in the atmosphere and not from any “greenhouse gas” IR emission.
Also notice that the time series from Karesuando are not showing anomalous situations. It can be supported by similar time series during more than 100 years from Karesuando and many other Swedish meteorological stations.
Modern data from Karesuando, Swedish Meteorological and Hydrolocal Institute (SMHI) http://www.vackertvader.se/v%C3%A4derstation/karesuando-2
[post updated 2012 20:47 -T]