Chester County PA - Analytical Battle of Actual vs. Altered Climate Data

[chubbs]

19 hours ago, Mike Cycle said:

Hi All, occasional lurker and Chester County resident here.   

I have done a deep dive on Coatesville 1 SW's history, working through the 530-1, the monthly paper records and property deeds for observers Gordon, Pyle and PECO.  I then compared the record of station changes with the breakpoints identified by NOAA/NCEI and Berkeley Earth Surface Temperature (BEST).  Claude helped with the graphic.

There is remarkable agreement between the history of changes at 1 SW and the breakpoints detected.   

edit:  The HOMR record for this station, (presumably pulled from the 1956 530-1 (itself likely pulled from the B44s)) is flawed.  

Very interesting. More evidence supporting bias adjustment in Chester County. The detailed documentation describes many more station changes than the NCDC documented. Indicates that the move from the City of Coatesville to Doe Run Road occurred in 1946. Per NCDC documentation Doe Run road site wasn't used until 1949.

[Mike Cycle]

Observer Pyle made a remark about the station move on the January 1946 record.  Then there is a record gap through to October 1948, when the first PECO observation record appears.  I don't know if this is a real gap.

During the same time, observer Pyle is also taking stream gage measurements.  

The earliest address is shown as 547 E. Main, across from the high school, but observer Gordon owned 574 E. Main, and there is no 547 E. Main on current mapping.  https://arcweb.chesco.org/LR_INFO/lr_info.aspx?PARID=1606 03640000

 

[chubbs]

1 hour ago, Mike Cycle said:

Observer Pyle made a remark about the station move on the January 1946 record.  Then there is a record gap through to October 1948, when the first PECO observation record appears.  I don't know if this is a real gap.

During the same time, observer Pyle is also taking stream gage measurements.  

The earliest address is shown as 547 E. Main, across from the high school, but observer Gordon owned 574 E. Main, and there is no 547 E. Main on current mapping.  https://arcweb.chesco.org/LR_INFO/lr_info.aspx?PARID=1606 03640000

 

The bulk of the post-war Coatesville cooling occurred in 1946 and 1947 which is consistent with a 1946 move. The cooling relative to West Chester and ABE also matches the timing and roughly 2F magnitude of the NCEI and Berkeley Earth bias adjustments that you posted above.

[Mike Cycle]

The 1946 station move looks like a train switching from one track to another. Nice. 

Here is a view of surface temperatures from NASA's ECOSTRESS instrument on the space station.  Coatesville 1 SW generally moves progressively from hotter to colder microclimates.

 

[forkyfork]

all this posting about some podunk hellhole where people trade their babies for percocet 

[rclab]

3 hours ago, forkyfork said:

all this posting about some podunk hellhole where people trade their babies for percocet 

Well there goes your shot for the congeniality award at the atmospherics convention. As always …..