Summary
The Gloucester subregion contains six streamflow gauges where daily streamflow data were processed into unified six-class quality codes. The amount of missing data for each gauge was less than 4%.
The Gloucester subregion has six streamflow gauges. The source of streamflow data, site details and duration and quality of the gauged records are summarised in Section 2.1.4.1 about observed data.
Analysis of the streamflow records is reported in the contextual information reported in the companion product 1.1 for the Gloucester subregion (McVicar et al., 2014, Section 1.1.5.3). The analyses include annual and monthly flow characteristics based on the total available flow record for each gauging station at 18 August 2013. A baseflow index was calculated for each streamflow record using the Lyne and Hollick (1979) one-parameter filtering separation equation:
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(2) |
where Qt is the total daily flow, Qb is the baseflow, i is the time step (day) number and α is a coefficient, usually taken to have a value of 0.925 (Aksoy et al., 2009; Gonzales et al., 2009).
No additional analyses have been undertaken. The streamflow data are used in the calibration of the surface water model reported in the companion product 2.6.1 for the Gloucester subregion (Zhang et al., 2018).
