Review of OEM assessment of potential causes of beach erosion at Portsea

[摘要] In assessing the potential cause of erosion at Portsea Beach the Office of the Environmental Monitor (OEM) concluded that; •There are no identifiable changes in the stability of the Great Sands as a region which can be attributed to channel deepening activities.•The pattern and rate of change on beaches in the southern part of Port Phillip Bay during the past 2 years (during and post project works) is consistent with that documented over the past 150 years.•In relation to Portsea, swell waves from Bass Strait that reach Portsea do not pass over the portion of the Entrance which was dredged and therefore it is implausible that the erosion of Portsea beach has resulted from increased wave energy due to the project. The conclusion was based on studies of historical records, observations, and numerical simulations before, during and after the completion of the CDP contained in numerous consultant reports.

[发布日期] 2013-04-12 [发布机构] CSIRO

[学科分类] 地球科学(综合)