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Table 2

Error-weighted mean mixing model results for tributary mixing fraction, total propagated error, and discharge results. DOI: https://doi.org/10.1525/elementa.290.t2

TributaryTributary mixing model fraction (EWM)Total error on mixing fractionEstimated tributary discharge (m3s–1)aMainstem discharge downstream of tributary confluence (m3s–1)a

 
Headwaters n/a n/a n/a 49 
Putchka 35.3% 0.42% 27 76 
Yanomayo 22.4% 1.25% 22 97 
Rupac 8.6% 0.42% 107 
Actuy 9.6% 0.53% 11 118 
Cajas 10.8% 1.47% 14 132 
San Miguel 20.0% 1.45% 33 165 
Chusgon 9.6% 1.81% 18 183 
Crisnejas 6.8% 0.56% 13 196 
Yangas 9.0% 0.84% 19 215 
Shauve 9.4% 0.64% 22 238 
Silaco 14.6% 1.02% 40 278 
Chamaya 46.1% 0.35% 238 516 
Chinchipe/Utcubamba 66.6% 0.19% 1030 1546 
TributaryTributary mixing model fraction (EWM)Total error on mixing fractionEstimated tributary discharge (m3s–1)aMainstem discharge downstream of tributary confluence (m3s–1)a

 
Headwaters n/a n/a n/a 49 
Putchka 35.3% 0.42% 27 76 
Yanomayo 22.4% 1.25% 22 97 
Rupac 8.6% 0.42% 107 
Actuy 9.6% 0.53% 11 118 
Cajas 10.8% 1.47% 14 132 
San Miguel 20.0% 1.45% 33 165 
Chusgon 9.6% 1.81% 18 183 
Crisnejas 6.8% 0.56% 13 196 
Yangas 9.0% 0.84% 19 215 
Shauve 9.4% 0.64% 22 238 
Silaco 14.6% 1.02% 40 278 
Chamaya 46.1% 0.35% 238 516 
Chinchipe/Utcubamba 66.6% 0.19% 1030 1546 

a Discharge estimates propagated from flow observed (196 m3s–1) when passing Balsas gage on August 3, 2015.

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