Description Usage Format Details Note Source References Examples
Continuously monitored (daily) streamflow and sediment data for U.S. Geological Survey streamgage 06610000 Missouri River at Omaha, Neb., and streamflow and sediment anomalies.
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A data frame containing 2,922 daily observations of two hydrologic variables, streamflow and sediment, and streamflow and sediment anomalies. There are eight variables.
staid | character | USGS Station identification number |
dates | date | date water-quality sample collected |
dflow | numeric | daily mean streamflow, cubic feet per second |
flowa30 | numeric | 30-day streamflow anomaly |
flowa1 | numeric | 1-day streamflow anomaly |
dsed | numeric | daily mean sediment concentration, milligrams per liter |
seda30 | numeric | 30-day sediment anomaly |
seda1 | numeric | 1-day sediment anomaly |
The streamflow and sediment anomalies were generated using the R package waterData (Ryberg and Vecchia, 2012).
See Ryberg and Vecchia (2012) for more information on calculating the anomalies and for additional references documenting the use of streamflow anomalies in water-quality trend analysis studies.
Data provided by Patrick Phillips, U.S. Geological Survey, New York Water Science Center.
Ryberg, K.R., and Vecchia, A.V., 2012, waterData—An R package for retrieval, analysis, and anomaly calculation of daily hydrologic time series data, version 1.0.0: U.S. Geological Survey Open-File Report 2012–1168, 8 p. [(]Also available at http://pubs.usgs.gov/of/2012/1168/.]
1 2 3 4 | data(swData)
# summary of water-quality concentrations
apply(cqwMoRivOmaha[,3:8], 2, summary)
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