Methodology for the studies is shown in the special report by
Neuman(16 Apr 2003)*. The studies were done with temperature averages
(monthly, annual and five year) for stations in rural, forested and
small town areas in the U.S., with 75-105 years of record. Rural site
locations are shown by the distance in miles to the nearest post
office. High quality data is maintained by public observers for the
National Weather Service (NWS), with assistance from NWS staff.
Dewpoint studies used data from airport stations with 50 - 85 years of
record. Data was obtained from the Midwest Regional Climate Center.
* Special Report - Air Temperatures & Dew Points - Great Lakes States
The study reports and station data summaries are at:
..(includes great photo of Lake Superior)..
..(includes photo of ravine with fog)..
... also, see these public archive sites...
..(includes photo of ravine landscape)..
..(includes photo overlook of Lake Superior North Shore)
Pat Neuman, hydrologist