Saturday, December 24, 2022

Victor Venema Had Died

And Then There's Physics reports that Victor Venema had died. 

That's sad and a loss for the climate community, and decency in general. Victor was a scientist at the University of Bonn who worked on the homogenization of climate data*, and very active on social media. I corresponded with him several times, asking question about temperature data. He was always kind and thoughtful and pleasant. I'm sorry to hear he has passed.  

* homogenization is the science of bringing data from different time periods and locations into a common baseline. For example, how do records of temperature in the past need to be adjusted, if at all, in order to be compared to temperatures taken today -- given changes in instrumentation, weather station moves, changes in the time of day the thermometers are read, incomplete data, etc. Yes, adjustments are necessary, and doing them correctly is a complicated science. 

Here's an excellent article about these adjustments.


"Understanding adjustments to temperature data," Zeke Hausfather, Climate Etc., 7/7/2014.
"Berkeley Earth: raw versus adjusted temperature data," Robert Rohde, Zeke Hausfather, Steve Mosher, Climate Etc., 2/9/2015.

"Understanding Time of Observation Bias," Zeke Hausfather, Climate Etc., 2/22/2015.

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