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UHI In China

August 23, 2014
tags: ,

By Paul Homewood 

 

image 

http://www.researchgate.net/publication/257408022_Detecting_urban_warming_signals_in_climate_records

 

 

An interesting paper on UHI from a couple of years ago.

They find that urban expansion has a significant effect on temperature trends and that 44% of the warming in the study regions over the last 30 years was urbanisation induced.

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3 Comments
  1. Ben Vorlich permalink
    August 23, 2014 2:29 pm

    I’m surprised it’s only 44%

  2. John F. Hultquist permalink
    August 23, 2014 3:57 pm

    These studies continue to confirm this well known phenomenon.
    Humans have been building cities (and constructing buildings) for quite a long time. I wonder when the first notice was made of an urban effect in the sense of heat, dust, or other issues?

    In 1959 the Univ. of Chicago Press published a book of papers edited by Mayer and Kohn, namely: Readings in Urban Geography. In a beat-up box under other dusty boxes I have a copy. Thus, from memory only I will say there is a paper in that book about the urban heat island, based on a study of Gary, Indiana (in the late 1940s or early 1950s). The emphasis, I recall, was on the enhanced rainfall down wind of the industrialized area. “Global Warming” was not, then, an issue.

  3. Brian H permalink
    August 27, 2014 2:28 pm

    44% of actual warming, or 44% distortion of homogenized records by over-weighting of local urban hotspots?

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