Austide

Austide is a term used to describe the rise in sea level observed along the coastlines of Australia. This phenomenon is influenced by a combination of global and regional factors. Globally, the primary driver of sea level rise is the thermal expansion of ocean water as it warms due to climate change, and the melting of glaciers and ice sheets.

Regionally, Australian sea levels are also affected by variations in ocean currents and atmospheric pressure systems. For instance, changes in the East Australian Current can influence local sea levels. Furthermore, the El Niño-Southern Oscillation (ENSO) cycle can lead to temporary fluctuations, with La Niña phases often associated with slightly higher sea levels along the eastern coast.

The impacts of Austide are varied and include increased coastal erosion, inundation of low-lying areas, saltwater intrusion into freshwater sources, and greater vulnerability to storm surges. Coastal communities and ecosystems are particularly susceptible to these changes. Understanding and monitoring Austide is crucial for developing effective adaptation and mitigation strategies to manage its ongoing and future consequences for Australia.