Table 1.
Spring (Position) | Temperature (°C) | pH | Channel velocity (cm s−1) | Reynolds number | O2 (aq) | Fe (TS) | As (TS) | CO2 (aq) | DOC | H2 (aq) |
---|---|---|---|---|---|---|---|---|---|---|
μM | nM | |||||||||
One Hundred Spring Plain (B) | 72.8 (1.4) | 3.5 (0.1) | 2–5 | 1.5 • 103 | 33 (11) | 25 (7) | 24 (6) | 100 (40) | 109 (55) | 39 (40) |
Beowulf (D) | 67.6 (1.8) | 2.9 (0.1) | 20–30 | 1.4 • 104 | 44 (6) | 30 (3) | 28 (4) | 200 (180) | 52 (12) | 13 (7) |
Numbers in parentheses are equal to ± 1 standard deviation from the mean.
Reynolds Number = inertial forces/viscous forces, ρVD/μ: ρ = density of fluid (kg/m−3), V = fluid velocity (ms−1), D = channel depth (m), and μ = dynamic fluid viscosity [kg (ms)−1]. DOC, dissolved organic carbon.