StreamStats for New York can be used to estimate (1) instantaneous flood discharges with exceedance probabilities of 0.8, 0.667, 0.5, 0.2, 0.1, 0.04, 0.02, 0.01, 0.005, and 0.002 (1.25-, 1.5-, 2-, 5-, 10-, 25-, 50-, 100-, and 500-year recurrence intervals, respectively) for ungaged, unregulated, rural streams throughout New York; (2) bankfull discharge and channel characteristics of streams throughout New York. The reports below present the regression equations used to estimate these statistics, and describes the methods used to develop the equations and to measure the basin characteristics used in the equations. Users should familiarize themselves with the reports before using StreamStats to obtain estimates of streamflow statistics for ungaged sites.
- Lumia, Richard, Freehafer, D.A., and Smith, M.J., 2006, Magnitude and Frequency of Floods in New York: U.S. Geological Survey Scientific Investigations Report 2006–5112, 152 p.
- Mulvihill, C.I., Baldigo, B.P., Miller, S.J., and DeKoskie, Douglas, 2009, Bankfull Discharge and Channel Characteristics of Streams in New York State: U.S. Geological Survey Scientific Investigations Report 2009-5144, 51 p.
General information on the Interactive Map application, as well as specific sources and computation methods for basin characteristics are available here.
NOTE: In the StreamStats outputs for ungaged sites in New York, the tables for bankfull statistics have a column heading indicating that all bankfull statistics are in units of cubic feet per second. This table heading is erroneous. The actual units for BFAREA (bankfull area) are square feet, BFDPTH (bankfull depth) are feet, for BFFLOW (bankfull flow) are cubic feet per second, and BFWDTH (bankfull width) are feet. Future program modifications will show the correct units in the table.
StreamStats for New York was developed in cooperation the New York City Department of Environmental Protection, the New York State Department of Environmental Conservation, the New York Department of State, and the New York State Department of Transportation.
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