Weather Investigation: Faulty Temperature Readings
In this post, we will re-visit global warming and the potential finding that could have implications on global warming rates and the past climate data by looking at one of the basic weather gathering instruments.
There are a vast amount of weather stations situated around the globe. However, the question was raised by a researcher known as Mr. Watts as to how accurate are these temperatures. This brings up a very good point. As a meteorologist it does make me wonder how many of the government automated weather stations are placed in good observational locations. Mr. Watts, in his work, found that a lot of stations were corrupted with data, because they were in the cities, surrounded by asphalt and concrete, which act as heat insulators, making for possibly false temperature readings or readings that are actually higher than they normally would be.
In his research, Mr. Watts concluded, “Since 1979-2008 temperatures have been rising by 1.1F not the Government stated 1.7F”. This goes on to with what I have been saying a long time now in that, our climate is more dynamic and does follow previous patterns from past and is dictated by more than CO2 gases. This finding of the air temperatures being too warm could be a huge reason why we have so many people believing that global warming is manmade.
The government has been going through all their stations and doing tests to see how accurate they actually are; a lot of stations have been closed due to this.
So, what does this mean for climate data? Maybe we could be seeing warmer numbers being entered in on climate sheets than actually what the temperatures are, which leads me to further believe that the temperatures on earth are warming at their climate standards from the last ice age that hit.
If you want to get the most accurate data when taking temperature observations, you should be taking readings from more than one place. However, when systems become automated, that is what happens; readings are now only taken from that one sensor. If you have a thermometer that you can walk around with and take readings from different places, you could estimate them all together to get a more accurate feel of the region. Secondly, weather thermometers should be around two meters above the ground to get out of the near surface fluctuations of the soil. Thirdly, thermometers should not be placed in a location that gets direct sunlight. This would allow for the sensor to get way too warm too fast. Some of the Automated Stations can’t help that they have been placed in areas prone to heating, such as near Airport Runways, or in downtown regions, where the heat from the roads is released into the atmosphere.
Another thing to remember when taking a temperature reading is to try to get a reading from a protected area, such as station weather box, where these sensors can be kept without being in direct sunlight.
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