Cartographic analysis as spatial determinant for climate change adaptation in the Hunter River Estuary, Australia

Abstract

This paper explores the hydrological history of the Hunter River and Estuary (Newcastle, Australia), to identify pathways for incorporating climate-sensitive adaptation approaches into urban development and planning. The research method utilises mapping as a methodological discovery tools to visually articulate the correlation of pre-colonial hydrological landscapes, the transformation of the estuary over two centuries, the areas identified as at risk, and the opportunities for developing a climate-resilient estuary. This research aims to contribute to the redefinition of the discourse on the role of estuary planning for changing climate, focusing on four critical aspects: identify the impacts of urbanisation and industrialisation on ecosystems and its correlation with climate hazard at the estuary; visualise such transformations over time and space to identify critical spatial and climate factors threatening inhabitation; propose strategic spatial practices towards adaptation and resilience; and synthesising the options to foster reflective thinking and establish a correlation with novel policies, governance and practices. The study highlights that adopting new urbanism aligned with cultural and ecological principles can mitigate future climate impacts through re-naturalisation and urban adaptation to sea-level rise by focusing on proactive approaches to building resilient communities. This paper also acknowledges the need for site-specific adaptive design and planning strategies at multiple scales and governance levels.