Message | Greetings Eric Parker, Thank you for your comment and for becoming a follower of this blog. You asked a couple of questions about UHI effect and is it being compensated for by the various data sets. Firstly let me answer your request for more information on UHI by guiding you to my link to Watts Up With That. Once there type UHI into the search facility. This will give you a good range of additional information that may answer most of your questions.
To the question of do the data sets compensate for UHI. To the best of my knowledge NASA GISS do, but only in the US. Their formulas employed always sem to round up. HadCRUT apparently don't adjust at all, nor does NCDC. UAH and RSS satellite systems both measure the lower troposphere and therefore are unaffected by UHI.
You may also try the site climate4you (again follow the link on my blogroll) It too has some very good information in it's tags on the main data sets and UHI.
I hope this helps. |