Parameters, abbreviations, and units used in the figures and tables.

Parameter	Abbreviation	Units
Secchi depth	SECCHI	meters (m)
Chlorophyll-a	CHLA	micrograms per liter (m g/l)
Total suspended solids	TSS	milligrams per liter (mg/l)
Total nitrogen	TN	milligrams per liter as N (mg/l)
Total phosphorus	TP	milligrams per liter as P (mg/l)
Water temperature	WATEMP	degrees C (° C)
Salinity	SAL	parts per thousand (ppt)
Nitrate plus nitrite	NO23	milligrams per liter (mg/l)
SAV coverage	SAV	hectares
Difference in SAV coverage from previous year	SAV_D	hectares
Discharge	DISCH	cubic meters per second (m3/s)
Available sunshine	AVSUN	percent of total available (%)
Wind speed	WINDSP	kilometers per hour (km/hr)
Precipitation	PRECIP	millimeters (mm)
Conductivity	COND	microsiemans per cm (m S/cm)
Tidal fresh Potomac River	TF2
Upper tidal Potomac River	UTR
Lower tidal Potomac River	LTR
Oligohaline Potomac Estuary	POTOH
Mesohaline Potomac Estuary	POTMH

Stations
Figure 2. Significant growing season correlations at station XFB2470 (HP) in the freshwater tidal Potomac River
Figure 3. Significant growing season correlations at station XFB1433 (MH) in the freshwater tidal Potomac River
Figure 4. Significant growing season correlations at station XEA6596 (IH) in the freshwater tidal Potomac River
Figure 5. Significant growing season correlations at station XEA1840 (QN) in the freshwater tidal Potomac River
Figure 6. Significant growing season correlations at station XDA4238 (DP) in the oligohaline Potomac Estuary
Figure 7. Significant growing season correlations at station XDA1177 (MP) in the oligohaline Potomac Estuary
Figure 8. Significant growing season correlations at station XDB3321 (NY) in the oligohaline Potomac Estuary
Figure 9. Significant growing season correlations at station XDC1706 (301B) in the mesohaline Potomac Estuary
Figure 10. Significant growing season correlations at station MLE2.2 (RP) in the mesohaline Potomac Estuary
Figure 11. Significant growing season correlations at station MLE2.3 (PL) in the mesohaline Potomac Estuary

Segments
Figure 12. Significant growing season correlations for segment TF2 in the freshwater tidal Potomac River
Figure 13. Significant growing season correlations for segment UTR in the freshwater tidal Potomac River
Figure 14. Significant growing season correlations for segment LTR in the freshwater tidal Potomac River
Figure 15. Significant growing season correlations for segment POTOH in the oligohaline Potomac Estuary
Figure 16. Significant growing season correlations for segment POTMH in the mesohaline Potomac Estuary
Figure 17. Significant spring correlations for segment TF2 in the freshwater tidal Potomac River
Figure 18. Significant spring correlations for segment UTR in the freshwater tidal Potomac River
Figure 19. Significant spring correlations for segment LTR in the freshwater tidal Potomac River
Figure 20. Significant spring correlations for segment POTOH in the oligohaline Potomac Estuary
Figure 21 Significant spring correlations for segment POTMH in the mesohaline Potomac Estuary
Figure 22. Significant summer correlations for segment TF2 in the freshwater tidal Potomac River
Figure 23. Significant summer correlations for segment UTR in the freshwater tidal Potomac River
Figure 24. Significant summer correlations for segment LTR in the freshwater tidal Potomac River
Figure 25. Significant summer correlations for segment POTOH in the oligohaline Potomac Estuary
Figure 26 Significant summer correlations for segment POTMH in the mesohaline Potomac Estuary

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