Correction to Long-Term Changes in Sediment and Nutrient Delivery

Sep 13, 2016 - streamflow per unit area is comparable, with minimum values of 0.27-0.32 m/year and maximum values of 52-58 m/year. (Table S1).” Corr...
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Addition/Correction pubs.acs.org/est

Correction to Long-Term Changes in Sediment and Nutrient Delivery from Conowingo Dam to Chesapeake Bay: Effects of Reservoir Sedimentation Qian Zhang,* Robert M. Hirsch, and William P. Ball Environ. Sci. Technol. 2016, 50(4), 1877−1886; DOI: 10.1021/acs.est.5b04073.

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e discovered minor errors in Table S1 of Appendix A in the published manuscript. These errors resulted from a previously undetected error in Microsoft Excel. The correct version of Table S1 is provided below, with the last three columns corrected. Correspondingly, the ending portion of the last sentence in Section “2.1. Study Sites and Data” should be corrected as follows: Original sentence: “At the three sites, annual average streamflow per unit area is comparable, with minimum values of 0.27-0.32 m/year and maximum values of 52-58 m/year (Table S1).” Corrected sentence: “At the three sites, annual average streamflow per unit area is comparable, with minimum values of 0.27-0.32 m/year and maximum values of 0.85-0.98 m/year (Table S1).” We remark that these errors do not affect any other tables, figures, results, discussion, or conclusions in the published manuscript. Table S1. Details of the River Monitoring Sites annual flowa USGS ID

station name

drainage area (km2)

min

median

mean

max

min

median

2081 33 2041

0.32 0.27 0.30

0.48 0.48 0.45

3

(m /s) 01576000 01576754 01578310 a

Susquehanna River at Marietta, PA Conestoga River at Conestoga, PA Susquehanna River near Conowingo, MD

67,314 1,217 70,189

690 10 667

1021 18 1006

1122 20 1152

mean

max

(m/year) 0.53 0.51 0.52

0.98 0.85 0.92

Calculated based on annual average flow data between 1987 and 2013.1

Published: September 13, 2016 © 2016 American Chemical Society

10773

DOI: 10.1021/acs.est.6b04085 Environ. Sci. Technol. 2016, 50, 10773−10773