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Why We Need An Independent Global Climate Temperature Database

Ever since the beginning of the global warming debate, now labeled “climate change,” there has been one immutable yet little-known fact: All of the temperature data stations used to make determinations about the state of Earth’s temperature are controlled by governments.

In June 1988, when Dr. James Hansen, then-director of NASA’s Institute for Space Studies in Manhattan, went before  the Senate Energy and Natural Resources Committee to say that, “global warming has begun,” he was using temperature data collected by governments worldwide from a weather station network that was never intended to detect a “global warming signal.”

In fact, Dr. Hansen had to develop novel statistical techniques to tease that global warming signal out of the data. The problem is, these weather station networks were never designed to detect such a signal in the first place. They were actually designed for weather forecast verification, to determine if forecasts issued by agencies such as the U.S. Weather Bureau (now the National Weather Service) were accurate. If you make temperature and precipitation forecasts for a location, and there is no feedback of the actual temperatures reached and the rainfall recorded, then it is impossible to improve the skill of forecasting.

The original network of weather stations, called the Cooperative Observer Program (COOP), was established in 1891 to formalize an ad hoc weather observation network operated by the U.S. Army Signal Service since 1873. It was only later that the COOP network began to be used for climate because climate observations require at least 30 years of data from weather stations before a baseline “normal climate” for a location can be established. Once the Cooperative Observer Program was established in the United States, other countries soon followed, and duplicated how the U.S. network was set up on a global scale.

However, the COOP network has several serious problems for use in detecting climate change on a national and global scale. The U.S. temperature readings made by volunteer COOP observers are rounded to the nearest whole degree Fahrenheit when recording the data on a paper form called a B-91. When comparing such coarsely recorded nearest whole degree temperature data to the claims of global warming, which are said to be about 1.8°F (1.0°C) since the late 1800s, the obvious questions of accuracy and precision of the COOP temperature data arise.

Even more concerning is that more than 90% of the COOP stations in the United States used to record climate data have found to be corrupted by local urbanization or contamination effects over time, with hundreds of COOP stations found to have been severely compromised by being placed next to air conditioner exhausts, jet exhausts at airports, and concrete, asphalt, and buildings that have sprung up near stations. All of these heat sources and heat sinks do one thing and one thing only: bias the recorded temperatures upwards.

The crux of the problem is this: the NWS publication “Requirements and Standards for Climate Observations” instructs that temperature data instruments must be “over level terrain (earth or sod) typical of the area around the station and at least 100 feet from any extensive concrete or paved surface,” and that “all attempts will be made to avoid areas where rough terrain or air drainage are proven to result in non-representative temperature data.” However, as detailed in this report, these instructions are regularly violated, not just in the U.S. network, but also in the Global Historical Climate Network.

This isn’t just a U.S. problem; it is a global problem. Examples exist of similarly compromised stations throughout the world, including Italy, the United KingdomChinaAfrica, and Australia.

With such broad corruption of the measurement environment, “The temperature records cannot be relied on as indicators of global change,” said John Christy, professor of atmospheric science at the University of Alabama in Huntsville, a former lead author on the Intergovernmental Panel on Climate Change.

The fact is that all global temperature data are recorded and compiled by government agencies, and the data are questionable due to corruption issues, rounding, and other adjustments that are applied to the data. In essence, the global surface temperatures that are reported are a mishmash of rounded, adjusted, and compromised readings, rather than being an accurate representation of Earth’s temperature. While scholars may claim the data are accurate, any layman can surmise that with all the problems that have been pointed out, it cannot possibly be accurate, only an estimate with high uncertainty.

Only one independent global temperature dataset that is independent of government compilation and reporting methods exists, and that is satellite-derived global temperature data from the University of Alabama at Huntsville (UAH), which are curated by Dr. John Christy and Dr. Roy Spencer.

But, even the UAH satellite dataset doesn’t give a full and accurate picture of global surface temperature because of limitations of the satellite system. At present, the system measures atmospheric temperature of the lower troposphere at about 26,000 feet (8 kilometers) altitude.

To date, there is only one network of climate capable weather stations that is accurate enough to fully detect a climate change signal. This is the U.S. Climate Reference Network (USCRN), which is a state-of-the-art automated system designed specifically to accurately measure climate trends at the surface. Since going into operation in 2005, it has not found any significant warming trend in the United States that can be attributed to climate change.

Unfortunately, the data from the USCRN network are buried by the U.S. government, and are not publicly reported in monthly or yearly global climate reports. It has also not been deployed worldwide.

Given the government monopoly on use of corrupted temperature data, questionable accuracy, and a clear reticence to make highly accurate temperature data from the USCRN available to the public, it is time for a truly independent global temperature record to be produced.

This isn’t “rocket science.” Given that governments are spending billions of taxpayer dollars on climate mitigation programs, doesn’t it make sense to get the most important thing – the actual temperature – as accurate as possible? Given today’s technology, shouldn’t we confirm and validate the need for it with a network and data collection that is not relying on a 100-year-old system? After all, if we can send a man to the moon, surely, we can measure the temperature of our own planet accurately.

Anthony Watts (awatts@heartland.orgis a senior fellow for environment and climate at The Heartland Institute.

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5 comments

  • Have you come across this?

    “Temperature.Global calculates the current global temperature of the Earth. It uses unadjusted surface temperatures. The current temperature is the 12M average mean surface temperature over the last 12 months compared against the 30 year mean. New observations are entered each minute and the site is updated accordingly. This site was created by professional meteorologists and climatologists with over 25 years experience in surface weather observations.”

    http://temperature.global/#twitter

  • 1 – Very nice to see I&I publish something from a non-I&I insider!
    2 – Mr. Watts is, of course, right about this.
    3 – Not only do we not have trustworthy data, but the data we do have covers an extremely short period. For comparison take a look at a new paper by Ralph Ellis ( https://www.sciencedirect.com/science/article/pii/S1674987116300305) on the “Modulation of ice ages via precession and dust-albedo feedbacks”. Climate data is measured against multi-thousand year intervals, not days, weeks, or even a few decades.

  • News Paper archives were used to expose NOAA and Al Gore manipulation of Global Warming-Climate Change data. The numbers were systematically changed in data bases to fit the UN Agenda21 narrative. Congress was not pleased!

  • …and that’s the VERY LAST THING that would ever happen.
    The commutards are fighting for their historical, existential existence, and understand, they want to YOU to take that place.

    Choose wisely.

  • Time t o make the World Leaders to start living the way they want us to live 100% Wind and Solar Power and we start with the United Nations Facility

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