Track A - Water Resources Center - University of Minnesota
Track A - Water Resources Center - University of Minnesota Track A - Water Resources Center - University of Minnesota
Intercept Mechanisms of Control • Adapted from O’Driscoll and DeWalle (2004) • Our R 2 is considerably lower (vs. 0.89) • due to spatial and temporal differences • Protection vs. restoration 9 8 7 6 5 4 3 Slope vs. Intercept All Streams Weekly Linear Regression Groundwater Control BSC NBC Gil C CSB Co C Ba C He C Be C y = -4.6744x + 8.1617 R² = 0.3893 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 Slope Ma BW Ru C No BW SD = 0.13, SE = 0.10 Pi C Meteorological Control NFZR
Contributing Factors • Factors that affect the air-water temperature relationship • No/little effect on R 2 , slope or intercept • Number of weekly averages (< .0.08 for all) • Number of known springs within 50 m (< 0.07 for all) • Number of known springs within 250 m (< 0.005 for all) • Number of temperature loggers (< 0.11 for all) • Minor watershed area (acres) (< 0.14 for both R 2 & intercept) • Some effect on R 2 , slope or intercept • Minor watershed area vs. slope (R 2 = 0.36)
- Page 1 and 2: Lori A. Krider Joseph A. Magner Jim
- Page 3 and 4: Importance • Air temperatures are
- Page 5 and 6: Temperature ( o C) Time Frame •
- Page 7 and 8: Data Source • Water temperature d
- Page 9 and 10: Terminology • Regressions explain
- Page 11 and 12: Results Summary & Comparison • Sl
- Page 13: Average Weekly Water Temperature (C
- Page 17 and 18: Other Findings • Could not provid
- Page 19 and 20: Implications for Climate Change •
- Page 21 and 22: Management for Mitigation •Increa
- Page 23 and 24: Natural short-term declines in curl
- Page 25 and 26: Sustaining Lakes in a Changing Envi
- Page 27 and 28: Genesis: Serendipity • Noticed de
- Page 29 and 30: Decline in surface growth in Pearl
- Page 31 and 32: Curly-leaf pondweed life history
- Page 33 and 34: Curly-leaf pondweed life history
- Page 35 and 36: Back to the question - Curlyleaf de
- Page 37 and 38: Growing Season Differences?
- Page 39 and 40: Nah that’s not it - 2010 was actu
- Page 41 and 42: Nah that’s not it - spring water
- Page 43 and 44: Links to ice cover duration? In oth
- Page 45 and 46: Days of Ice 180 160 140 120 100 80
- Page 47 and 48: EUREKA!!
- Page 49 and 50: Findings • Winters during most of
- Page 51 and 52: Dec. + Jan. Snowfall (in) Departure
- Page 53 and 54: Implications of Climate Change •
- Page 55 and 56: Critical Temp Thresholds High turio
- Page 57 and 58: Summary • Winter possibly plays s
- Page 59 and 60: Acknowledgments • DNR Area Fisher
- Page 61 and 62: Acknowledgements Will French Jennif
- Page 63 and 64: Introduction Trout streams in SE M
Intercept<br />
Mechanisms <strong>of</strong> Control<br />
• Adapted from<br />
O’Driscoll and<br />
DeWalle (2004)<br />
• Our R 2 is<br />
considerably<br />
lower (vs. 0.89)<br />
• due to spatial<br />
and temporal<br />
differences<br />
• Protection vs.<br />
restoration<br />
9<br />
8<br />
7<br />
6<br />
5<br />
4<br />
3<br />
Slope vs. Intercept<br />
All Streams Weekly Linear Regression<br />
Groundwater Control<br />
BSC<br />
NBC<br />
Gil C<br />
CSB<br />
Co C<br />
Ba C<br />
He C<br />
Be C<br />
y = -4.6744x + 8.1617<br />
R² = 0.3893<br />
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9<br />
Slope<br />
Ma BW<br />
Ru C<br />
No BW<br />
SD = 0.13, SE = 0.10<br />
Pi C<br />
Meteorological Control<br />
NFZR
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