Statistical Analysis of Trends in the Red River Over a 45 Year Period
Statistical Analysis of Trends in the Red River Over a 45 Year Period
Statistical Analysis of Trends in the Red River Over a 45 Year Period
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CONCENTR<br />
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CONCENTR<br />
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1975 1980 1985 1990 1995 2000 2005 2010<br />
1975 1980<br />
floodway<br />
dspc<br />
POINTS: SEASONALLY ADJUSTED AND FLOW!ADJUSTED DATA<br />
LINE: TREND<br />
+ TREND<br />
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2000 2005 2010<br />
CONCENTRATION, CONCENTRATION, AS BASE!10 BASE!10 LOGARITHM LOGARITHM<br />
2 2 2.5 2.5 3 3 3.5 3.5<br />
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POINTS: SEASONALLY ADJUSTED AND DETRENDED DATA<br />
LINE: ANNUAL STREAMFLOW!RELATED ANOMALY<br />
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1975 1980 1985 1990 1995 2000 2005 2010<br />
Figure A.90: Specific Conductance Flow Adjustments — Seasonally adjusted and<br />
flow adjusted data (po<strong>in</strong>ts) and s<strong>in</strong>gle trend (l<strong>in</strong>e).<br />
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1975 1980 1985 1990 1995 2000 2005 2010<br />
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RESIDUAL<br />
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1975 1980<br />
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DJUSTED DATA<br />
POINTS: PARMA MODEL RESIDUALS<br />
LINE: LOWESS SMOOTH WITH F= 0.5<br />
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2000 2005 2010<br />
RESIDUAL<br />
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Figure A.91: Specific Conductance Flow Adjustments — Parametric s<strong>in</strong>gle trend<br />
model residuals (po<strong>in</strong>ts) and lowess smooth l<strong>in</strong>e with F = 0.5.<br />
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