Table A1a. Environmental variables, land use

Variable / Description / Units / Min / Max / Mean / Std Dev
R_Water / Percent water in local watershed riparian zone / Percent / 0 / 0.22 / 0.04 / 0.06
RT_Grass / Percent grass in total watershed riparian zone / Percent / 0.02 / 0.43 / 0.24 / 0.09
W_Urban / Percent urban land in local watershed / Percent / 0 / 0.93 / 0.21 / 0.23
W_Agri / Percent agricultural land in local watershed / Percent / 0 / 0.89 / 0.41 / 0.25
W_Grass / Percent grassland in local watershed / Percent / 0 / 0.64 / 0.20 / 0.12
W_Forest / Percent forest in local watershed / Percent / 0.002 / 0.60 / 0.16 / 0.13
W_Water / Percent water in local watershed / Percent / 0 / 0.15 / 0.01 / 0.02
W_Wet / Percent wetland in local watershed / Percent / 0 / 0.29 / 0.05 / 0.05
WT_Urban / Percent urban land in total watershed / Percent / 0.001 / 0.58 / 0.14 / 0.15
WT_Agri / Percent agricultural land in total watershed / Percent / 0.05 / 0.89 / 0.55 / 0.22
WT_Grass / Percent grassland in total watershed / Percent / 0.035 / 0.34 / 0.19 / 0.06
WT_Forest / Percent forest in total watershed / Percent / 0.002 / 0.39 / 0.08 / 0.07

Table A1b. Environmental variables, climate

Variable / Description / Units / Min / Max / Mean / Std Dev
WT_Precip / Historical total annual precipitation / mm / 885 / 934 / 921 / 11
WT_JMin / July minimum temperature / C / 15.2 / 17.3 / 16.3 / 0.4
WT_GDD / Growing degree-day in total watershed / degree day / 2741 / 3251 / 2955 / 103
Jan Precip / Average January precipitation / mm / 14.4 / 61.0 / 41.8 / 12.8
Feb Precip / Average February precipitation / mm / 11.1 / 57.1 / 39.4 / 12.3
Mar Precip / Average March precipitation / mm / 26.3 / 92.1 / 60.4 / 20.9
Apr Precip / Average April precipitation / mm / 41.1 / 105.2 / 81.2 / 21.8
May Precip / Average May precipitation / mm / 60.3 / 191.3 / 108.1 / 35.4
Jun Precip / Average June precipitation / mm / 73.9 / 144.9 / 93.0 / 13.6
Jul Precip / Average July precipitation / mm / 38.7 / 131.9 / 82.3 / 28.7
Aug Precip / Average August precipitation / mm / 72.9 / 198.2 / 111.2 / 34.2
Sep Precip / Average September precipitation / mm / 30.8 / 165.0 / 92.3 / 40.1
Oct Precip / Average October precipitation / mm / 31.1 / 115.1 / 69.6 / 24.2
Nov Precip / Average November precipitation / mm / 47.1 / 103.8 / 71.9 / 13.9
Dec Precip / Average December precipitation / mm / 32.6 / 60.7 / 44.5 / 6.6
Avg Mon Precip / Average monthly precipitation / mm / 64.4 / 84.0 / 74.6 / 4.9
Mon Max Precip / Monthly maximum precipitation / mm / 118.5 / 288.7 / 184.9 / 41.6
Mon Min Precip / Monthly minimum precipitation / mm / 5.8 / 30.5 / 18.0 / 6.8
Jan Temp / Average January temperature / C / -7.1 / -0.8 / -3.8 / 2.1
Feb Temp / Average February temperature / C / -6.9 / -1.3 / -3.8 / 1.8
Mar Temp / Average March temperature / C / -0.4 / 4.8 / 2.3 / 1.6
Apr Temp / Average April temperature / C / 8.9 / 11.2 / 10.0 / 0.5
May Temp / Average May temperature / C / 13.3 / 17.2 / 15.2 / 1.0
Jun Temp / Average June temperature / C / 19.3 / 22.0 / 20.5 / 0.6
Jul Temp / Average July temperature / C / 21.7 / 24.4 / 23.1 / 0.8
Aug Temp / Average August temperature / C / 20.5 / 23.2 / 22.3 / 0.7
Sep Temp / Average September temperature / C / 16.3 / 20.0 / 17.8 / 0.8
Oct Temp / Average October temperature / C / 9.8 / 12.4 / 11.0 / 0.7
Nov Temp / Average November temperature / C / 3.7 / 6.0 / 5.0 / 0.5
Dec Temp / Average December temperature / C / -6.6 / -1.1 / -3.8 / 1.5
Avg Mon Temp / Average monthly temperature / C / 9.0 / 10.5 / 9.6 / 0.3
Mon Max Temp / Monthly maximum temperature / C / 22.7 / 25.3 / 24.0 / 0.7
Mon Min Temp / Monthly minimum temperature / C / -11.3 / -6.7 / -9.2 / 1.2

Table A1c. Environmental variables, hydrology

Variable / Description / Units / Min / Max / Mean / Dev
Jan Flow / Mean January streamflow / cms / 0.03 / 57.6 / 2.8 / 9.4
Feb Flow / Mean February streamflow / cms / 0.04 / 104.4 / 3.7 / 13.4
Mar Flow / Mean March streamflow / cms / 0.10 / 115.5 / 6.1 / 19.9
Apr Flow / Mean April streamflow / cms / 0.09 / 97.8 / 5.2 / 17.2
May Flow / Mean May streamflow / cms / 0.09 / 80.8 / 4.3 / 13.2
Jun Flow / Mean June streamflow / cms / 0.06 / 94.3 / 3.9 / 12.9
Jul Flow / Mean July streamflow / cms / 0.02 / 31.2 / 1.6 / 5.1
Aug Flow / Mean August streamflow / cms / 0.02 / 29.8 / 1.3 / 4.0
Sep Flow / Mean September streamflow / cms / 0.03 / 45.4 / 1.8 / 6.3
Oct Flow / Mean October streamflow / cms / 0.04 / 61.5 / 2.5 / 8.7
Nov Flow / Mean November streamflow / cms / 0.05 / 60.1 / 2.6 / 8.9
Dec Flow / Mean December streamflow / cms / 0.04 / 70.1 / 3.3 / 11.1
1day Min Flow / Annual 1-day minimum flow / cms / 0.01 / 14.3 / 0.5 / 1.9
1day Max Flow / Annual 1-day maximum flow / cms / 0.35 / 358.8 / 18.9 / 54.0
3day Min Flow / Annual 3-day minimum flow / cms / 0.01 / 15.2 / 0.5 / 2.0
3day Max Flow / Annual 3-day maximum flow / cms / 0.27 / 297.6 / 15.2 / 43.8
7day Min Flow / Annual 7-day minimum flow / cms / 0.01 / 16.1 / 0.6 / 2.1
7day Max Flow / Annual 7-day maximum flow / cms / 0.23 / 218.5 / 11.6 / 33.8
30day Min Flow / Annual 30-day minimum flow / cms / 0.01 / 22.3 / 0.8 / 3.0
30day Max Flow / Annual 30-day maximum flow / cms / 0.18 / 144.5 / 8.0 / 24.5
90day Min Flow / Annual 90-day minimum flow / cms / 0.02 / 33.5 / 1.3 / 4.7
90day Max Flow / Annual 90-day maximum flow / cms / 0.13 / 106.3 / 5.9 / 18.5
1day Max Date / Julian date of 1-day maximum flow / day of year / 20 / 366 / 136 / 80
1day Min Date / Julian date of 1-day minimum flow / day of year / 7 / 308 / 220 / 62
Num of HFP / Number of high flow pulses per year / - / 88 / 92 / 90.4 / 1.0
Num of LFP / Number of low flow pulses per year / - / 82 / 92 / 89.5 / 2.3
Dur of HFP / Average duration of high flow pulses / days / 5.8 / 16.5 / 10.8 / 2.6
Dur of LFP / Average duration of low flow pulses / days / 6.8 / 21.4 / 12.8 / 4.4
Pos Diff / Average positive difference between daily flows / cms/day / 0.01 / 12.41 / 0.69 / 1.96
Neg Diff / Average negative difference between daily flows / cms/day / -6.09 / -0.01 / -0.35 / 1.02
Reversals / Average number of hydrologic reversals / - / 82 / 117 / 103.5 / 7.5
BFI / Average annual base flow index / - / 0.035 / 0.290 / 0.150 / 0.068

Table A1d. Other environmental variables

Variable / Description / Units / Min / Max / Mean / Dev
Ch_bd201 / Channel bedrock depth ≤ 50ft / percent / 0 / 1 / 0.09 / 0.27
Ch_bd50 / 100ft ≥ channel bedrock depth ≥ 50ft / percent / 0 / 1 / 0.46 / 0.41
Ch_bdg101 / Bedrock depth ≥ 100ft / percent / 0 / 1 / 0.45 / 0.42
Pondup_L / Distance to upstream pond / m / 0 / 118885 / 20864 / 32741
Ponddn_L / Distance to downstream pond / m / 0 / 753189 / 358528 / 211154
Pondup_S / Size of upstream pond / km2 / 0 / 2.82 / 0.20 / 0.55
Ponddn_S / Size of downstream pond / km2 / 0.07 / 124 / 97 / 49
Damup_L / Distance to dam upstream / m / 0 / 122545 / 10008 / 21828
Damdn_L / Distance to dam downstream / m / 0 / 492361 / 169413 / 116245
Order / Stream Order / - / 1 / 6 / 2.74 / 1.24
Downorder / Order of downstream reach / - / 2 / 6 / 3.74 / 1.52
Link / Number of upstream reaches / - / 1 / 624 / 35 / 112
Dlink / Link of downstream reach / - / 2 / 90023 / 5627 / 21661
Sinuosity / Sinuosity of channel / - / 1.01 / 3.32 / 1.37 / 0.31
Ch_Grad / Channel-grade / m/km / 0.09 / 8.05 / 2.25 / 1.73
W_Area / Size of the local watershed / km2 / 0.1 / 55.2 / 13.2 / 13.5
W_Perm / Soil permeability in local watershed / mm/hr / 13 / 231 / 83 / 71
W_Slope / Slope in local watershed / degree / 0.10 / 2.76 / 0.95 / 0.61
W_Darcy / Darcy index in local watershed / m/day*-100 / -178.5 / 5.1 / -35.4 / 38.0
WT_Alluv / Percent alluvium in total watershed / percent / 0 / 0.25 / 0.04 / 0.05
WT_Coars / Percent coarse deposits in total watershed / percent / 0 / 0.85 / 0.12 / 0.23
WT_Fine / Percent fine deposits in total watershed / percent / 0 / 1.00 / 0.47 / 0.32
WT_ICont / Percent of ice contact in total watershed / percent / 0 / 0.013 / 0.001 / 0.003
WT_Lacus / Percent of lakes in total watershed / percent / 0 / 0.58 / 0.15 / 0.14
WT_OWash / Percent outwash in total watershed / percent / 0 / 0.59 / 0.15 / 0.17
WT_Shale / Percent shale in total watershed / percent / 0 / 1 / 0.40 / 0.32
WT_Carb / Percent carbonate in total watershed / percent / 0 / 1 / 0.58 / 0.32
WT_BR50 / bedrock depth in watershed ≤ 50ft / percent / 0 / 0.11 / 0.01 / 0.03
WT_BR100 / 100ft ≥ bedrock depth in watershed ≥ 50ft / percent / 0 / 0.91 / 0.29 / 0.27
WT_BG100 / Bedrock depth in watershed > 100ft / percent / 0.09 / 1.00 / 0.70 / 0.27
WT_Area / Size of watershed / km2 / 7 / 6543 / 385 / 1208
WT_Slope / Watershed slope / degree / 0.10 / 1.74 / 0.65 / 0.35
WT_Perm / Soil permeability in total watershed / mm/hr / 15 / 161 / 54 / 36
WT_Darcy / Darcy Index in total watershed / m/day*-100 / -100.9 / 2.7 / -20.8 / 25.6