Trends in 7-day-low streamflows at 174 USGS streamflow gages in the Chesapeake Bay watershed, Mid-Atlantic U.S.
Dates
Publication Date
2019-03-25
Time Period
2019
Citation
Dudley, R.W., Blum, A.G., Archfield, S.A., Hirsch, R.M., Vogel, R.M., and Kiang, J.E., 2019, Trends in 7-day-low streamflows at 174 USGS streamflow gages in the Chesapeake Bay watershed, Mid-Atlantic U.S.: U.S. Geological Survey data release, https://doi.org/10.5066/P9SAQ66D.
Summary
This data set contains U.S. Geological Survey (USGS) streamgage identification numbers, begin and end years of the periods of streamflow record tested, Sen slope trends in the annual minimum 7-day streamflow for the period of record tested, the p-values (significance) of the trends, and the trend Sen slopes standardized by the standard deviations of the residual errors defined as the difference between observations and the Sen slope lines, for 174 USGS streamgages with 56 to 75 years of record in the Chesapeake Bay watershed, Mid-Atlantic U.S.
Summary
This data set contains U.S. Geological Survey (USGS) streamgage identification numbers, begin and end years of the periods of streamflow record tested, Sen slope trends in the annual minimum 7-day streamflow for the period of record tested, the p-values (significance) of the trends, and the trend Sen slopes standardized by the standard deviations of the residual errors defined as the difference between observations and the Sen slope lines, for 174 USGS streamgages with 56 to 75 years of record in the Chesapeake Bay watershed, Mid-Atlantic U.S.
These data were used to investigate whether selection of a recent subset of the annual minimum 7-day low-flow record to compute the commonly-used statistic of 7Q10 (the annual minimum 7-day streamflow exceeded in nine out of ten years on average) improved 7Q10 estimation over use of the entire period of record available.
