Comments on "Urban Bias in Area-Averaged Surface Air- for the 1880-1984 period, for cities with populations greater than 100 000 compared with those with less than Temperature Trends" 100 000 is actually 0.3°C (0.9°C-0.6°C) not 0.1 °C. This is The article "Urban Bias in Area-Averaged Surface Air Tem- part of the value of the global urban-heat-island effect for perature Trends," byT.R. Karl and P.D. Jones (March 1989) the period in question, but cities with populations less than is an important contribution to the question of the validity 100 000 have their own heat-island effect. Therefore, one of greenhouse-warming theories. Unfortunately, this article must add an additional, although small, value to 0.3°C, has some significant errors. presumably about 0.06°C based on equation (1) of Karl & The first is rather obvious. Equation (1), on page 266, Jones (1989). This makes the actual heat-island effect about should have +0.45 as the exponent, not the negative one 0.36°C. (I am including the 1880-1900 period because the shown. rate of urban growth then was relatively small and because The second error is much more serious. The article states, 0.1 °C is significant to only one figure.) In any case, the "Whe n Hansen
Bulletin of the American Meteorological Society – American Meteorological Society
Published: Apr 1, 1990
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera