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Methods for Analysis of Spatial and Temporal Patterns


Contents

Main text

Appendix A: Tables

Appendix B: Figures

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Appendix B: Figures

Figure 1. San Francisco Bay and the Sacramento-San Joaquin Delta, showing the sampling sites for trace elements used in the RMP and prior pilot studies.

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Figure 2. RMP station clusters for each sampling event based on all trace elements.

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Figure 3. RMP station clusters for each trace element based on all sampling events 7-15.

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Figure 4. Total trace element distributions mapped in UTM coordinates. Each map corresponds to a single element and single RMP sampling event. The are af each square is proportional to the concentration, expressed as a fraction of the largest value found in each sampling event.

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back to Regional Differences   back to top

back to Regional Differences   back to top

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Figure 5. Moran scatterplots for each trace element during sampling event 13. The dashed line is the linear regression line. The solid line is the least trimmed squares regression line. Three points are designated by their station codes rather than by circles. These have the three most negative residuals with respect to the least trimmed squares line.

 

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Figure 6. Time series of trace element totals for RMP stations during 1991-1995

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back to Temporal Trends   back to top

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Figure 7. Trends in trace element totals during 1991-1995. Upright triangles represent uptrends and inverted triangles represent downtrends. Weaker trends (p>0.1) are designated by small triangles, stronger trends (p</=0.1) by large triangles.

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Figure 8. Total cadmium vs. Net Delta Outflow. The straight line in each panel is a linear regression fit.

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Figure 9. Time series of total cadmium after removing the effects of net Delta Outflow (NDO) through linear regression.

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