IonBalance | R Documentation |
Selected ion balance data for County Ditch 65 near Maple Bay, Minnesota (SW2), USGS station number 05079250.
IonBalance
Data frame with 22 rows and 28 columns
Name | Type | Description |
SAMPLE | character | Sample record number |
AGNCY | character | Agency code |
STAID | character | USGS station number |
DATES | Date | Sample date |
TIMES | character | Sample time |
EDATE | Date | Sample end date (all missing) |
ETIME | character | Sample end time (all missing) |
MEDIUM | character | Sample medium code (surface water) |
H_ion | numeric | Hydrogen ion concentration |
Ca | numeric | Calcium ion concentration |
Mg | numeric | Magnesium ion concentration |
Na | numeric | Sodium ion concentration |
K | numeric | Potassium ion concentration |
Fe | numeric | Iron ion concentration (all missing) |
Mn | numeric | Manganese ion concentration (all missing) |
Cation_sum | numeric | Sum of all available cation concentrations |
Alk | numeric | Alkalinity concentration |
Hydrox | numeric | Hydroxide ion concentration (all missing) |
Bicarb | numeric | Bicarbonate ion concentration (all missing) |
Carb | numeric | Carbonate ion concentration (all missing) |
NO2NO3 | numeric | Nitrite plus nitrate ion concentration |
NO2 | numeric | Nitrite ion concentration (all missing) |
NO3 | numeric | Nitrate ion concentration (all missing) |
Cl | numeric | Chloride ion concentration |
SO4 | numeric | Sulfate ion concentration |
F | numeric | Fluoride ion concentration |
Anion_sum | numeric | Sum of all available anion concentrations |
Pct_Diff | numeric | Percent difference beteeen Cation_sum and Anion_sum |
Note: all
concentrations are in milli-equivalents per liter.
Data retrieved from NWISWeb (http://nwis.waterdata.usgs.gov/mn/nwis/qw) on 2012-01-19. The data were modified to represt the concentrations in milli-equivalents per liter.
data(IonBalance) # Create a scatter plot matrix of the cations # Shows the correlation amongst those variables. # Note that potassium (K) is negatively correlated to the others! pairs(IonBalance[,c("Ca", "Mg", "Na", "K")])
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