Low-flow characteristics and flow duration of New Jersey streams

Low-flow frequency and flow-duration data for 400 continuous-record and partial-record gaging stations in New Jersey are tabulated in this report. The amount of data analyzed at each site varies from the complete daily discharge record for continuous-record gaging stations, some of which have been in operation for over 50 years, to limited discharge measurements for partial-record sites. Daily discharges for continuous-record stations with 7 or more years of record were analyzed by digital computer. From these computer summaries, low-flow frequency tables for all gaging stations on unregulated streams with 10 or more years of record were tabulated. Flow-duration tables were also compiled for streams with at least 7 years of streamflow records. For continuous-record gaging stations with less than 10 years of record, for highly regulated streams, and for partial-record sites, only observed or estimated annual minimum mean discharges for 7 consecutive days with recurrence intervals of 2 and 10 years are given. (USGS)