Global Temperature Trends Based On Non-Existent Data

hadcrut4_annual_global

https://www.metoffice.gov.uk/hadobs/hadcrut4/diagnostics.html

We are all too familiar with graphs showing how much global temperatures have risen since the 19thC.

The HADCRUT version above is typical, and also very precise, with fairly tight error bars even in the early part of the record.

One wonders where they got the data to work all this out because it certainly could not have come from thermometers.

All of the major global temperature datasets rely heavily on the Global Historical Climatology Network (GHCN). Yet as the “Overview of the Global Historical Climatology Network-Daily Database”, published by Matthew Menne et al in 2012, rather inconveniently showed, most of the world had little or no temperature data in the 19thC, and even up to 1950.

image

Density of GHCN-Daily stations with daily maximum and minimum temperature

http://journals.ametsoc.org/doi/full/10.1175/JTECH-D-11-00103.1

Prior to 1950, there were no more than a couple of hundred or so of GHCN stations outside of North America:

jtech-d-11-00103.1-f3

There are many competent scientists and statisticians who believe that even now it is not possible to measure the Earth’s average temperature, indeed that it is a meaningless concept.

Whether they are right or not, no serious scientist would claim to know the global temperature a century or more ago.

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Comments (3)

  • Avatar

    Spurwing Plover

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    The New York Pravda(Times)has been especialy harsh against Trump over dumin g the Paris Accord but what else can we ever expect for a daily rag who ignored the crimes against humanity commited by Stalin,Hitler,Castro and Mao

    Reply

  • Avatar

    rakooi

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    Sooo, the basis of this article is the fact that there were fewer than 200 stations outside of the US.
    AND
    All of the remarkably DETAILED ice cores where we have actual samples of air, pollen, mold spores etc….and are remarkably accurate temperature data…
    All of the Fossils, soil cores, Sea bed cores, stalagmites
    all remarkably accurate data on climate, temps, rain fall etc.

    Reply

  • Avatar

    JayPee

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    Who needs valid data points when you have models available for worship?
    These lying phonies use their own computer model generated forecasts and pre-casts as data ( evidence ) that the underlying computer modelled program is correct !

    It’s called ” circular reasoning ” and is
    logically invalid.

    Reply

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