University of Illinois Urbana-Champaign

Mean Temperature Biases As a Function of the Time of Observation

Head, David E.

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https://hdl.handle.net/2142/48744

Description

Title
Mean Temperature Biases As a Function of the Time of Observation
Author(s)
Head, David E.
Issue Date
1985
Keyword(s)
  • Mean Temperatures
  • upper Great Plains
Abstract
Hourly and daily temperature data for ten National Weather Service stations in the Midwest and upper Great Plains states were used to determine long-term time of observation biases on mean temperatures derived from 24-hour maximum and minimum values. Although differences in the magnitude of the bias were found from station to station, good continuity was exhibited across the area in question. Generally the biases for any given month show a stronger longitudinal than latitudinal correlation. Daily mean temperatures calculated from 24-hour readings made near 0700 local time tend to be lower than a midnight-to-midnight reading. Observations made during the afternoon tend to be higher, with magnitudes of 0.5 C to 1.0 C common.
Publisher
Illinois State Water Survey
Series/Report Name or Number
ISWS Miscellaneous Publication MP-081
Type of Resource
text
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http://hdl.handle.net/2142/48744
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Owning Collections

Miscellaneous Publications - Illinois State Water Survey PRIMARY
Monographic series published by the Illinois State Water Survey, 1955-date