This pilot study assesses the suitability of using an elevation-based GIS approach for modelling estuary extent and potential migration in response to sea level rise. The purpose was to evaluate a simple, standardised methodology to assist in decision making for planning and development around estuary margins, and to determine whether the approach has potential to be applied more widely at a regional and national level using available data.

Reference: Stevens LM, Southwick M. 2021. Evaluation of a simple GIS-based methodology to determine estuary extent and assess potential changes in response to sea level rise. Salt Ecology Report 057, prepared for Greater Wellington Regional Council, January 2021. 11p.