Empirical Stream Thermal Sensitivities May Underestimate Stream Temperature Response to Climate Warming

2019 ◽  
Vol 55 (7) ◽  
pp. 5453-5467 ◽  
Author(s):  
Jason A. Leach ◽  
R. Dan Moore
Keyword(s):  
Climate Warming ◽  
Temperature Response ◽  
Stream Temperature

Influence of streamside buffers on stream temperature response following clear-cut harvesting in western Oregon

2013 ◽  
Vol 43 (11) ◽  
pp. 993-1005 ◽  
Author(s):  
Elizabeth Cole ◽  
Michael Newton
Keyword(s):  
Management Practice ◽  
Temperature Response ◽  
Stream Temperature ◽  
Forest Harvesting ◽  
Riparian Buffers ◽  
Daily Maximum ◽  
Clear Cut ◽  
Best Management ◽  
Temperature Trends ◽  
Temperature Responses

Determining the effectiveness of different riparian buffers for mitigating forest-harvesting impacts on stream temperatures continues to be of interest throughout the world. Four small, low or medium elevation streams in managed western Oregon forests were studied to determine how the arrangement and amount of streamside retention strips (buffers) in clear-cut units influenced stream temperatures. Buffers included (i) no tree, (ii) predominantly sun-sided 12 m wide partial, and (iii) two-sided (Best Management Practice, (BMP)) 15–30 m wide buffers. Harvested units alternated with uncut units along 1800–2600 m study reaches. Impacts of harvesting on stream temperatures were determined by time series comparisons of postharvest and preharvest regressions. Trends for daily maximum and mean stream temperature significantly increased after harvest in no tree buffer units. Partial buffers led to slight (<2 °C) or no increased warming. BMP units led to significantly increased warming, slight, or no increased warming. Temperature responses in uncut units appeared to be linked to responses in upstream harvested units. In many instances, when harvested units exhibited significantly higher postharvest trends, lower trends were observed in the uncut units downstream. Stream temperature trends of 7 day moving maxima indicated warming through the no tree buffer units and some of the BMP units. Peaks in maxima were not maintained in downstream units. Stream temperature responses were related to buffer implementation and stream features, relating to cooling and warming.

Investigation of Stream Temperature Response to Non-Uniform Groundwater Discharge in a Danish Lowland Stream

2014 ◽  
Vol 31 (8) ◽  
pp. 975-992 ◽  
Author(s):  
K. Matheswaran ◽  
M. Blemmer ◽  
P. Thorn ◽  
D. Rosbjerg ◽  
E. Boegh
Keyword(s):  
Groundwater Discharge ◽  
Temperature Response ◽  
Stream Temperature ◽  
Lowland Stream

scholarly journals A model for evaluating stream temperature response to climate change in Wisconsin

2015 ◽  
Author(s):  
Jana S. Stewart ◽  
Stephen M. Westenbroek ◽  
Matthew G. Mitro ◽  
John D. Lyons ◽  
Leah E. Kammel ◽  
...  
Keyword(s):  
Climate Change ◽  
Temperature Response ◽  
Stream Temperature

A Model for Evaluating Stream Temperature Response to Climate Change Scenarios in Wisconsin

2010 ◽  
Author(s):  
S. Westenbroek ◽  
J. S. Stewart ◽  
C. A. Buchwald ◽  
M. Mitro ◽  
J. D. Lyons ◽  
...  
Keyword(s):  
Climate Change ◽  
Temperature Response ◽  
Stream Temperature ◽  
Climate Change Scenarios

scholarly journals Stream Temperature Response to Three Riparian Vegetation Scenarios by Use of a Distributed Temperature Validated Model

2010 ◽  
Vol 44 (6) ◽  
pp. 2072-2078 ◽  
Author(s):  
T. R. Roth ◽  
M. C. Westhoff ◽  
H. Huwald ◽  
J. A. Huff ◽  
J. F. Rubin ◽  
...  
Keyword(s):  
Riparian Vegetation ◽  
Temperature Response ◽  
Stream Temperature

scholarly journals Alpine Stream Temperature Response to Storm Events

2007 ◽  
Vol 8 (4) ◽  
pp. 952-967 ◽  
Author(s):  
Lee E. Brown ◽  
David M. Hannah
Keyword(s):  
Water Column ◽  
Temperature Response ◽  
Stream Temperature ◽  
Precipitation Event ◽  
Hydrological Response ◽  
Storm Events ◽  
River Systems ◽  
Thermal Dynamics ◽  
Temporal Differences ◽  
Stream Discharge

Abstract Despite continued interest in meteorological influences on the thermal variability of river systems, there are few detailed studies of stream temperature dynamics during storm events. This paper reports high-resolution (15 min) water column and streambed temperature data for storm events of contrasting magnitude, duration, and intensity for three streams (draining glacier, snow, and groundwater sources) across an alpine river system during summers 2002 and 2003. The results demonstrate clear spatial and temporal differences in water column and streambed thermal responses to precipitation events and streamflow peaks. Analysis of all storms across the three sites showed a decrease in water column temperature for 75% of events, with significant negative relationships between stream temperature and precipitation magnitude, precipitation intensity, and stream discharge peaks. Temperature decreases of 10.4°C were recorded, but temperature increases were less marked at up to 2.3°C. Temperature response to precipitation was dampened with increasing depth into the streambed at all sites. Spatial and temporal differences in thermal response to storm events were controlled by precipitation and stream discharge peak characteristics (above) plus antecedent basin conditions, which together determine the nature and rapidity of hydrological response. In this steep alpine basin, stream temperature variability appears to be enhanced by quick routing of precipitation to the river channel (i.e., direct precipitation/channel interception, rapid surface flow over impermeable bedrock/thin alpine soils, and subsurface flow through highly weathered scree slopes). This research highlights the need for integrated hydrometeorological research of precipitation event–hydrological response–stream temperature interactions to advance understanding of runoff generation processes driving event-scale thermal dynamics in alpine and other river systems.

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