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 />
0<br />
0<br />
00 RED RIVER OF THE NORTH AT EMERSON, MANITOBA<br />
dpot<br />
1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010<br />
POINTS: SEASONALLY ADJUSTED AND FLOW−ADJUSTED DATA<br />
LINE: TREND<br />
1955 1960 196<br />
+ TREND<br />
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CONCENTRATION, CONCENTRATION, AS BASE−10 BASE−10 LOGARITHM LOGARITHM<br />
0 0 0.5 0.5 1 1 1.5 1.5<br />
POINTS: SEASONALLY ADJUSTED AND DETRENDED DATA<br />
LINE: ANNUAL STREAMFLOW−RELATED ANOMALY<br />
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1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010<br />
Figure A.52: Dissolved Potassium Flow Adjustments — Seasonally adjusted and<br />
flow adjusted data (po<strong>in</strong>ts) and no-trend (l<strong>in</strong>e).<br />
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1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010<br />
RESIDUAL<br />
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POINTS: PARMA MODEL RESIDUALS<br />
LINE: LOWESS SMOOTH WITH F= 0.5<br />
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RESIDUAL<br />
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1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 2010<br />
Figure A.53: Dissolved Potassium Flow Adjustments — Parametric no-trend model<br />
residuals (po<strong>in</strong>ts) and lowess smooth l<strong>in</strong>e with F = 0.5.<br />
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