2.6.1.6.7 Low-flow spells (LFS)


The median change in the number of LFS in Figure 16 indicates that the number of LFS across the bioregion is simulated to increase by up to three events. In the smaller Shannon Brook catchment (CLM_004 to CLM_007) the 95th percentile indicates an increase of up to 16 LFS. In this catchment a small change in flow rate (less than 0.03 ML/day decrease in P01, Figure 14) can result in large changes in the number of LFD and LFS.

Figure 16

Figure 16 Predictive distribution of (a) maximum raw change (amax), (b) maximum percent change (pmax) and (c) year of maximum change (tmax) for the number of low-flow spells (LFS)

d/s = downstream of; u/s = upstream of

The circle indicates the median of the posterior predictive distribution, the length of the thick vertical line spans the interquartile range (or 50th percentile prediction interval), and the thin vertical line spans the 90th percentile prediction interval. Nodes are grouped per catchment, ordered from upstream to downstream.

Data: Bioregional Assessment Programme (Dataset 2)

Last updated:
11 July 2017
Thumbnail images of the Clarence-Moreton bioregion

Product Finalisation date

18 October 2016