Bayesian Hierarchical Regression to Assess Variation of Stream Temperature with Atmospheric Temperature in a Small Watershed
Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, NL A1B 3X5, Canada
Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, PA 15213, USA
Author to whom correspondence should be addressed.
Received: 31 July 2017 / Revised: 12 September 2017 / Accepted: 13 September 2017 / Published: 15 September 2017
This paper described the variability of stream temperature,
, and compared relationships between
and air temperature,
, at 10 sites along a 1.2 km reach in a 2 km
basin in New Jersey, USA, using Bayesian Hierarchical Regression. Mean daily mean
was significantly cooler at two sites and significantly warmer at three sites relative to the mean daily
for all sites combined. Seasonal daily mean
showed the greatest variation between sites in the summer within the reach for both daily mean and daily maximum temperatures. Posterior distributions for slope parameters (
) for regressions varied significantly by season and showed the greatest variation in summer. The strongest relationships occurred in autumn with
), and the weakest relationships occurred in the summer with
). Results support the conclusion that riparian shading impacts the effect of
, and that
shows a stronger relationship with measured
at sites in open areas that are more likely to have meteorologic conditions similar to bulk conditions.
This is an open access article distributed under the Creative Commons Attribution License
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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MDPI and ACS Style
Daraio, J.A.; Amponsah, A.O.; Sears, K.W. Bayesian Hierarchical Regression to Assess Variation of Stream Temperature with Atmospheric Temperature in a Small Watershed. Hydrology 2017, 4, 44.
Daraio JA, Amponsah AO, Sears KW. Bayesian Hierarchical Regression to Assess Variation of Stream Temperature with Atmospheric Temperature in a Small Watershed. Hydrology. 2017; 4(3):44.
Daraio, Joseph A.; Amponsah, Abena O.; Sears, Kenneth W. 2017. "Bayesian Hierarchical Regression to Assess Variation of Stream Temperature with Atmospheric Temperature in a Small Watershed." Hydrology 4, no. 3: 44.
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