Charlottetown, V3 Unadjusted Data Show Prince Edward Island’s Station Doesn’t Have The Annual Temperature Data Since 2001

Today I checked the temperature data from Charlottetown located in Edward Island, Canada.

 

I found that GHCN V3 Unadjusted data show Prince Edward Island doesn’t have the annual temperature data at all since 2001, despite the V3 data set being updated up to July 2019, and that V4 Unadjusted data show the station doesn’t have the annual temperature data from 1982 to 2012, but has the annual temperature data from 2013 to today.

GHCN V3 Unadjusted

GHCN V4 Unadjusted

In addition, GHCN V4 Unadjusted data are identical with V3 Unadjusted data until 1970, except 1934. But since 1971 the two data sets don’t match.

GHCN V3 Unadjusted

GHCN V4 Unadjusted

It’s strange that the station has different types of unadjusted data for each version.

NASA used to claim that GHCN-Unadjusted is the raw data as reported by the weather station.

The data called “unadjusted” should be unadjusted data.

 

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6 Responses to Charlottetown, V3 Unadjusted Data Show Prince Edward Island’s Station Doesn’t Have The Annual Temperature Data Since 2001

  1. Nelson says:

    Kirye, thanks for your interesting posts! I believe if you slowed down the animation of your graphs it would be easier for people to comprehend (or maybe I’m just slow.)

  2. Al Shelton says:

    Thanks Kirye..
    I have sent this to my Canadian Member of Parliament.

  3. RegretLeft says:

    You are quite the number-cruncher!

    I struggle with numbers and am having some trouble here. Adjusted / unadjusted / gaps… ?? is there a takeway?

    Looking at the static charts at the top (the animated one again, seem to fast and are difficult to drill down on) — seems to me there’s that pattern again: “cool the past”

    Some of the cool years – 1906,7 about – get “adjusted” (purple) down .6 or .7 degrees C – that’s huge! Am I reading that correctly?

    I can tell you that Prince Edward Island has a delightful, moderate climate; cool in winter (not much snow) and delightfully warm in the summer and fall. Some fabulous beaches mostly on the North Shore – probably now “mask mandatory”.

    Cattle ranching is a major industry in the interior of the island – but don’t worry – they will probably all be brutally gunned down by the Canadian military when the “climate lockdown” starts!

  4. Gerry McIsaac says:

    I have seen similar situations when I use National Centers for Environmental Information (NCEI). A lot of it has to do with how Environment Canada (EC) puts the data out.
    For studies I do in Canada, I use EC data straight up. I was getting too many conflicting values with NCEI data.
    Have to do a lot of data handling though.
    Here’s a daily example of Charlottetown, Prince Edward Island.
    https://climate.weather.gc.ca/climate_data/daily_data_e.html?hlyRange=2012-09-10%7C2020-09-30&dlyRange=2012-09-13%7C2020-09-30&mlyRange=%7C&StationID=50621&Prov=PE&urlExtension=_e.html&searchType=stnName&optLimit=yearRange&StartYear=1840&EndYear=2020&selRowPerPage=25&Line=1&searchMethod=contains&txtStationName=charlottetown&timeframe=2&Day=30&Year=2013&Month=9#

  5. Gator says:

    There is no such thing as “adjusted data”.

    You cannot change data, but you can destroy it. Data is the information collected, any adjustments to that data destroys it, and replaces it with artifacts of analysis. There is no such thing as “adjusted data”.

    My old Webster’s Dictionary from 1916 defines data as simply “Factual material”.
    What grantologists generally call “data” are artifacts of analysis. For those who are unaware of what “artifacts” are, let me help you.

    ar·ti·fact
    ˈärdəfakt/Submit noun
    plural noun: artifacts
    1. an object made by a human being

    Data is collected, not manufactured.

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