Safeswim Coastal Hydrodynamic Model Validation

Client: Auckland Council

Morphum Environmental has undertaken sampling at numerous beaches across Auckland to validate Auckland Council’s new Safeswim coastal hydrodynamic forecasting model.

Morphum Environmental has undertaken sampling at numerous beaches across Auckland to validate Auckland Council’s new Safeswim coastal hydrodynamic forecasting model.

Improving the prediction of recreational swimming safety

Over 2017, Morphum Environmental has undertaken water sampling at numerous beaches across Auckland. This is to validate Auckland Council’s new Safeswim recreational swimming forecasting model, which is designed to predict when bacteria levels will exceed safety limits for recreational swimmers.

The existing Safeswim monitoring programme retrieves samples by helicopter once per week, and only gives a snapshot of bacteria levels in the water at the collection time. The new forecasting model will be used to carry out simulations every 12 hours by incorporating the latest rain and wind forecasts provided by MetService. The coastal water samples collected by Morphum Environmental will be used to verify that the forecasting model provides a good prediction of bacteria levels at Auckland’s beaches.

The samples collected by Morphum Environmental cover a total of 35 beaches, including some of Auckland’s most popular summer locations.

Jennifer Howe

Digital Content Manager