James William Owens
@Willard1951
03-04-2015 14:31:25
52,2K Tweets
394 Followers
363 Following
Jim Gorman Jim Java ๊คถ @[email protected] Jim D BubbasPossumRanch caerbannog666 Orwell2024๐ Craig Johnson Mervyn Robin Hagues ๐ญ๐ธ โ๏ธ @fcmfcs2019 Rodger L Nelson FactChecker76 benjamin MRAF Kenneth Richard Sharon Patterson Aanthanur That Was Then This Is Now ๐บ๐ธ ๐ฌโฃ๏ธSpurgly Donaldโฃ๏ธ๐ฌ Bourgeois Bolshevik ๐ฆ๐บ steven mosher #bitcoin Reinhard Kuhn Over400ppm bart Mystick Theater Claude ๐ญ๐น๐ฉ๐ช๐บ๐ธ๐ซ๐ท๐ฎ๐ฑ Boothe ๐ป๐๐จ๐๐๐๐ก๐โข ๐ต๐ญ๐๐จ๐ฆ Climate of Dawn Jim Fisher @RushhourP #AaronBushnell #RefaatAlareer #RachelCorrie Setophaga Calvin (Zod ) Lord King Frederik Friends of Science Winder ๐ฉ๐Dave Dent #SmashtheWEF Will Huygens Eli Rabett EcologySenseUK John C. Menzies Ned Nikolov, Ph.D. Youcantbeserious David Rice The Writer John Strok Scientists usually want to remove errors and biases, Jim
One of these is urban heat; another is time of observation bias primarily in US data
Yes, we need good long-term records to understand changes in climate
James William Owens Jim Java ๊คถ @[email protected] Jim D BubbasPossumRanch caerbannog666 Orwell2024๐ Craig Johnson Mervyn Robin Hagues ๐ญ๐ธ โ๏ธ @fcmfcs2019 Rodger L Nelson FactChecker76 benjamin MRAF Kenneth Richard Sharon Patterson Aanthanur That Was Then This Is Now ๐บ๐ธ ๐ฌโฃ๏ธSpurgly Donaldโฃ๏ธ๐ฌ Bourgeois Bolshevik ๐ฆ๐บ steven mosher #bitcoin Reinhard Kuhn Over400ppm bart Mystick Theater Claude ๐ญ๐น๐ฉ๐ช๐บ๐ธ๐ซ๐ท๐ฎ๐ฑ Boothe ๐ป๐๐จ๐๐๐๐ก๐โข ๐ต๐ญ๐๐จ๐ฆ Climate of Dawn Jim Fisher @RushhourP #AaronBushnell #RefaatAlareer #RachelCorrie Setophaga Calvin (Zod ) Lord King Frederik Friends of Science Winder ๐ฉ๐Dave Dent #SmashtheWEF Will Huygens Eli Rabett EcologySenseUK John C. Menzies Ned Nikolov, Ph.D. Youcantbeserious David Rice The Writer John Strok But you can't manufacture 'long' records by modifying data. Climate science deals in guesses, not facts. If temps have been measured and recorded in the past, you can't simply say we'll homogenize. There are too many factors involved in why temps differ, even with miles.
Jim Gorman Jim Java ๊คถ @[email protected] Jim D BubbasPossumRanch caerbannog666 Orwell2024๐ Craig Johnson Mervyn Robin Hagues ๐ญ๐ธ โ๏ธ @fcmfcs2019 Rodger L Nelson FactChecker76 benjamin MRAF Kenneth Richard Sharon Patterson Aanthanur That Was Then This Is Now ๐บ๐ธ ๐ฌโฃ๏ธSpurgly Donaldโฃ๏ธ๐ฌ Bourgeois Bolshevik ๐ฆ๐บ steven mosher #bitcoin Reinhard Kuhn Over400ppm bart Mystick Theater Claude ๐ญ๐น๐ฉ๐ช๐บ๐ธ๐ซ๐ท๐ฎ๐ฑ Boothe ๐ป๐๐จ๐๐๐๐ก๐โข ๐ต๐ญ๐๐จ๐ฆ Climate of Dawn Jim Fisher @RushhourP #AaronBushnell #RefaatAlareer #RachelCorrie Setophaga Calvin (Zod ) Lord King Frederik Friends of Science Winder ๐ฉ๐Dave Dent #SmashtheWEF Will Huygens Eli Rabett EcologySenseUK John C. Menzies Ned Nikolov, Ph.D. Youcantbeserious David Rice The Writer John Strok It' just finding problems and then finding/applying corrections, Jim
It's sound and legitimate
Again, check the published literature
Example: time of observation bias goes back into 1970-80s
journals.ametsoc.org/view/journals/โฆ
journals.ametsoc.org/view/journals/โฆ
journals.ametsoc.org/view/journals/โฆ
James William Owens Jim Gorman Jim Java ๊คถ @[email protected] Jim D BubbasPossumRanch caerbannog666 Orwell2024๐ Craig Johnson Mervyn Robin Hagues ๐ญ๐ธ โ๏ธ @fcmfcs2019 Rodger L Nelson FactChecker76 benjamin MRAF Kenneth Richard Sharon Patterson Aanthanur That Was Then This Is Now ๐บ๐ธ ๐ฌโฃ๏ธSpurgly Donaldโฃ๏ธ๐ฌ Bourgeois Bolshevik ๐ฆ๐บ steven mosher #bitcoin Reinhard Kuhn Over400ppm bart Mystick Theater Claude ๐ญ๐น๐ฉ๐ช๐บ๐ธ๐ซ๐ท๐ฎ๐ฑ Boothe ๐ป๐๐จ๐๐๐๐ก๐โข ๐ต๐ญ๐๐จ๐ฆ Climate of Dawn Jim Fisher @RushhourP #AaronBushnell #RefaatAlareer #RachelCorrie Setophaga Calvin (Zod ) Lord King Frederik Friends of Science Winder ๐ฉ๐Dave Dent #SmashtheWEF Will Huygens Eli Rabett EcologySenseUK John C. Menzies Ned Nikolov, Ph.D. Youcantbeserious David Rice The Writer John Strok Time of observation bias is something that seems fair enough, and one can create mathematical models to assess the impact. But UHI outside of the equatorial regions isnโt going to even be constant month to monthโฆ yet they give one correction for the whole year.
James William Owens Jim Gorman Jim Java ๊คถ @[email protected] Jim D BubbasPossumRanch caerbannog666 Orwell2024๐ Craig Johnson Mervyn Robin Hagues ๐ญ๐ธ โ๏ธ @fcmfcs2019 Rodger L Nelson FactChecker76 benjamin MRAF Kenneth Richard Sharon Patterson Aanthanur That Was Then This Is Now ๐บ๐ธ ๐ฌโฃ๏ธSpurgly Donaldโฃ๏ธ๐ฌ Bourgeois Bolshevik ๐ฆ๐บ steven mosher #bitcoin Reinhard Kuhn Over400ppm bart Mystick Theater Claude ๐ญ๐น๐ฉ๐ช๐บ๐ธ๐ซ๐ท๐ฎ๐ฑ Boothe ๐ป๐๐จ๐๐๐๐ก๐โข ๐ต๐ญ๐๐จ๐ฆ Climate of Dawn Jim Fisher @RushhourP #AaronBushnell #RefaatAlareer #RachelCorrie Setophaga Calvin (Zod ) Lord King Frederik Friends of Science Winder ๐ฉ๐Dave Dent #SmashtheWEF Will Huygens Eli Rabett EcologySenseUK John C. Menzies Ned Nikolov, Ph.D. Youcantbeserious David Rice The Writer John Strok Also we can use eg hourly or per minute data to validate time is observation bias corrections. So that bias correction is certainly something that you can support with hard data.
James William Owens Jim Gorman Jim Java ๊คถ @[email protected] Jim D BubbasPossumRanch caerbannog666 Orwell2024๐ Craig Johnson Mervyn Robin Hagues ๐ญ๐ธ โ๏ธ @fcmfcs2019 Rodger L Nelson FactChecker76 benjamin MRAF Kenneth Richard Sharon Patterson Aanthanur That Was Then This Is Now ๐บ๐ธ ๐ฌโฃ๏ธSpurgly Donaldโฃ๏ธ๐ฌ Bourgeois Bolshevik ๐ฆ๐บ steven mosher #bitcoin Reinhard Kuhn Over400ppm bart Mystick Theater Claude ๐ญ๐น๐ฉ๐ช๐บ๐ธ๐ซ๐ท๐ฎ๐ฑ Boothe ๐ป๐๐จ๐๐๐๐ก๐โข ๐ต๐ญ๐๐จ๐ฆ Climate of Dawn Jim Fisher @RushhourP #AaronBushnell #RefaatAlareer #RachelCorrie Setophaga Calvin (Zod ) Lord King Frederik Friends of Science Winder ๐ฉ๐Dave Dent #SmashtheWEF Will Huygens Eli Rabett EcologySenseUK John C. Menzies Ned Nikolov, Ph.D. Youcantbeserious David Rice The Writer John Strok You probably can get a lower bound on the urban heat island effect by comparing the average mid-winter daily minimum โฆ where UHI from differences in heat capacity of urban surfaces vs rural surface will be negligible, and then contrast with the trend in mid-summer daily maxima
James William Owens Jim Gorman Jim Java ๊คถ @[email protected] Jim D BubbasPossumRanch caerbannog666 Orwell2024๐ Craig Johnson Mervyn Robin Hagues ๐ญ๐ธ โ๏ธ @fcmfcs2019 Rodger L Nelson FactChecker76 benjamin MRAF Kenneth Richard Sharon Patterson Aanthanur That Was Then This Is Now ๐บ๐ธ ๐ฌโฃ๏ธSpurgly Donaldโฃ๏ธ๐ฌ Bourgeois Bolshevik ๐ฆ๐บ steven mosher #bitcoin Reinhard Kuhn Over400ppm bart Mystick Theater Claude ๐ญ๐น๐ฉ๐ช๐บ๐ธ๐ซ๐ท๐ฎ๐ฑ Boothe ๐ป๐๐จ๐๐๐๐ก๐โข ๐ต๐ญ๐๐จ๐ฆ Climate of Dawn Jim Fisher @RushhourP #AaronBushnell #RefaatAlareer #RachelCorrie Setophaga Calvin (Zod ) Lord King Frederik Friends of Science Winder ๐ฉ๐Dave Dent #SmashtheWEF Will Huygens Eli Rabett EcologySenseUK John C. Menzies Ned Nikolov, Ph.D. Youcantbeserious David Rice The Writer John Strok The year to year trend in the average mid winter daily minimum should show if there is a global climatic drift in one direction or the other. The average mid summer daily maximum should show the site specific UHI trend, or at least the lower bound of that.
James William Owens Jim Gorman Jim Java ๊คถ @[email protected] Jim D BubbasPossumRanch caerbannog666 Orwell2024๐ Craig Johnson Mervyn Robin Hagues ๐ญ๐ธ โ๏ธ @fcmfcs2019 Rodger L Nelson FactChecker76 benjamin MRAF Kenneth Richard Sharon Patterson Aanthanur That Was Then This Is Now ๐บ๐ธ ๐ฌโฃ๏ธSpurgly Donaldโฃ๏ธ๐ฌ Bourgeois Bolshevik ๐ฆ๐บ steven mosher #bitcoin Reinhard Kuhn Over400ppm bart Mystick Theater Claude ๐ญ๐น๐ฉ๐ช๐บ๐ธ๐ซ๐ท๐ฎ๐ฑ Boothe ๐ป๐๐จ๐๐๐๐ก๐โข ๐ต๐ญ๐๐จ๐ฆ Climate of Dawn Jim Fisher @RushhourP #AaronBushnell #RefaatAlareer #RachelCorrie Setophaga Calvin (Zod ) Lord King Frederik Friends of Science Winder ๐ฉ๐Dave Dent #SmashtheWEF Will Huygens Eli Rabett EcologySenseUK John C. Menzies Ned Nikolov, Ph.D. Youcantbeserious David Rice The Writer John Strok Now the standard error of the mean for the average daily maxima and minima in the Dublin Airport data makes any trends hard to be certain of, plus there was a station move in I think 1994 which shows in the daily maxima for the summer, at least I see it knowing the move exists!
James William Owens Jim Gorman Jim Java ๊คถ @[email protected] Jim D BubbasPossumRanch caerbannog666 Orwell2024๐ Craig Johnson Mervyn Robin Hagues ๐ญ๐ธ โ๏ธ @fcmfcs2019 Rodger L Nelson FactChecker76 benjamin MRAF Kenneth Richard Sharon Patterson Aanthanur That Was Then This Is Now ๐บ๐ธ ๐ฌโฃ๏ธSpurgly Donaldโฃ๏ธ๐ฌ Bourgeois Bolshevik ๐ฆ๐บ steven mosher #bitcoin Reinhard Kuhn Over400ppm bart Mystick Theater Claude ๐ญ๐น๐ฉ๐ช๐บ๐ธ๐ซ๐ท๐ฎ๐ฑ Boothe ๐ป๐๐จ๐๐๐๐ก๐โข ๐ต๐ญ๐๐จ๐ฆ Climate of Dawn Jim Fisher @RushhourP #AaronBushnell #RefaatAlareer #RachelCorrie Setophaga Calvin (Zod ) Lord King Frederik Friends of Science Winder ๐ฉ๐Dave Dent #SmashtheWEF Will Huygens Eli Rabett EcologySenseUK John C. Menzies Ned Nikolov, Ph.D. Youcantbeserious David Rice The Writer John Strok What I find interesting is that the station move is not as obvious in the winter data as in the summer data. This suggests that any correction for the station move needs to be seasonally variedโฆ yet the corrections from HPA are, from what I can see, non-seasonal
Stephen Connolly James William Owens Jim Gorman Jim Java ๊คถ @[email protected] Jim D BubbasPossumRanch caerbannog666 Orwell2024๐ Craig Johnson Mervyn Robin Hagues ๐ญ๐ธ โ๏ธ @fcmfcs2019 Rodger L Nelson FactChecker76 benjamin MRAF Kenneth Richard Sharon Patterson Aanthanur That Was Then This Is Now ๐บ๐ธ ๐ฌโฃ๏ธSpurgly Donaldโฃ๏ธ๐ฌ Bourgeois Bolshevik ๐ฆ๐บ steven mosher #bitcoin Reinhard Kuhn Over400ppm bart Mystick Theater Claude ๐ญ๐น๐ฉ๐ช๐บ๐ธ๐ซ๐ท๐ฎ๐ฑ Boothe ๐ป๐๐จ๐๐๐๐ก๐โข ๐ต๐ญ๐๐จ๐ฆ Climate of Dawn Jim Fisher @RushhourP #AaronBushnell #RefaatAlareer #RachelCorrie Setophaga Calvin (Zod ) Lord King Frederik Friends of Science Winder ๐ฉ๐Dave Dent #SmashtheWEF Will Huygens Eli Rabett EcologySenseUK John C. Menzies Ned Nikolov, Ph.D. Youcantbeserious David Rice The Writer John Strok Any idea where it was originally located and where in the sprawling mass of concrete and surrounding tall buildings the temperature measuring equipment now resides?
Stephen Connolly James William Owens Jim Gorman Jim Java ๊คถ @[email protected] Jim D BubbasPossumRanch caerbannog666 Orwell2024๐ Craig Johnson Mervyn Robin Hagues ๐ญ๐ธ โ๏ธ @fcmfcs2019 Rodger L Nelson FactChecker76 benjamin MRAF Kenneth Richard Sharon Patterson Aanthanur That Was Then This Is Now ๐บ๐ธ ๐ฌโฃ๏ธSpurgly Donaldโฃ๏ธ๐ฌ Bourgeois Bolshevik ๐ฆ๐บ steven mosher #bitcoin Reinhard Kuhn Over400ppm bart Mystick Theater Claude ๐ญ๐น๐ฉ๐ช๐บ๐ธ๐ซ๐ท๐ฎ๐ฑ Boothe ๐ป๐๐จ๐๐๐๐ก๐โข ๐ต๐ญ๐๐จ๐ฆ Climate of Dawn Jim Fisher @RushhourP #AaronBushnell #RefaatAlareer #RachelCorrie Setophaga Calvin (Zod ) Lord King Frederik Friends of Science Winder ๐ฉ๐Dave Dent #SmashtheWEF Will Huygens Eli Rabett EcologySenseUK John C. Menzies Ned Nikolov, Ph.D. Youcantbeserious David Rice The Writer John Strok Looks like EIDW weather station is located on the threshold of runway 10R. Good from an aviation perspective but not necessarily representative of true local temperature. The old airport boundary was at least two km east prior to the new extension.
