Kakadu Case Study

Impacts – Sea Level Rise (SLR)
Assumptions
• SLR is transmitted to tidal interface
• Lower estuary contained in channel
• Floodplain level set at 5mAHD from GA data
Increased tidal pressure
• SLR => 143mm by 2030 to 700mm by 2070 (on top of 6m tide +)
• Storm surge increase ~ 0.15m
Increased levee overtopping 60% by 2030
and 400% by 2070
Increased saline intrusion on floodplain
• Levee overtopping
• Dendritic channel threat to billabongs
Increased tidal flows and velocities
– increased channel cross section
– pressure on tidal head
Tourism
Mining
Health and Safety
Ecology
Adaptation options
Promote new tourism at existing sites
Open new sites
Replicate sites and/or create ‘Living Museum’
Maintain access to priority sites
Maintain infrastructure at priority sites
Manage crocodile numbers and minimise human contact
Maintain World Heritage listing
Rehabilitate past mining facilities
Upgrade infrastructure for proposed mines
Prevent introduction of tropical diseases
Develop incidence response plan
Upgrade safety communication
Educate visitors and residents and businesses
Manage extractive uses for the Park
Manage key ecological sites to build resilience
Structural protection of priority sites
Transport and Communication
Develop alternative forms of transport into and within Park
Construct all weather road access