Percent change in storms is relative to the baseline of our data, years 2001 2011, during which there was an average of 17.5 storms/year (1.46/month) and 100.2 CFP calls/year (8.35/month) (Table 2).
This paper investigates changes in storm runoff resulting from the transformation of previously rural landscapes into peri-urban areas.
The traditional monitoring provided a basis for evaluating the changes in storm runoff volume, storm hydrograph peak and storm-period sediment load and mean suspended sediment concentration.
PERCAST predicts the location and rate of rainfall up to 4 h using the most recent storm images to extract storm features, such as advection field and changes in storm intensity and size.
Our comparison illustrates that using a constant imperviousness value for urban classes over time, a method used in numerous studies and models, leads to inaccurate estimation of temporal changes in storm water runoff.
Instead, we propose that grain size records past changes in storm intensity, which is responsible for debris flow initiation in this area and is decoupled from average rainfall rates.
Comparisons with changes in storm runoff response in the more urban area suggest that the relative increase in peak flows and reduction in flood duration and response time of a catchment is greatest at low levels of urbanization and that the introduction of storm water conveyance systems significantly increases the flashiness of storm runoff above that attributed to impervious area alone.
Concerning storm-related mortality and injury, most respondents noted that expected changes in storm climate due to climate change are relatively small and highly uncertain, and data is lacking on the effects on mortality and injury.
"A legal framework that requires regular reporting to the government about both the quality of the infrastructure and possible changes in storm conditions ensures that politicians are informed about any deficiencies," he says.
Coral reefs are likely to experience adverse effects from a range of climate change related events such as increases in seawater temperature, sea-level rise, changes in storm patterns and coastal currents, changes in rainfall patterns, and additional pressures from nearby cities and settlements (Watson et al. 1996).
