Cyclone PAM Post Inundation Assessment Survey using UAV Herve Damlamian, Cyprien Bosserelle, Amrit Raj, Zulfikar Begg, Jens Kruger.
[email protected] Tropical Cyclone PAM Preliminary Wave model of Cyclone Pam Tuvalu: • AU$ ~14M • 25% of TV 2013 GDP • 41% population affected • 90% damage on crops in 3 Islands, 30% damage on crops in 4 Islands Vanuatu: • 16 death • 65,000 people displaced • >50% population affected (166,000) • 17,000 buildings affected • AU$ ~619M – Damage and Loss • 64.1% of GDP • Livelihood of more than 80% of rural population affected. Other countries affected: New Caledonia, Solomon Island, Kiribati, New-Zealand. Post Disaster Assessment Survey • Rapid Damage Assessment – Collect high resolution images to assess building damage. • Extreme Wave Inundation and Impact Assessment – Collect Inundation data from an extreme wave event. – Assess use of UAV for Post disaster inundation impact assessment. Post PAM Inundation Assessment 3D Shoreline Mapping Methodology • Generate high resolution Topography of coastal areas: – Setting up temporary tide gauge. – Setting up Bench Marks in Targeted areas. – Using RTK GPS System to Establish GCPs. – UAV mapping with 90% overlap • Compare with LIDAR data (2012) Preliminary Wave model of Cyclone Pam, Efate Point Cloud: Takara Village, NE Efate Inundation Extent and Run-up Debris line 240m Inundation extent 7m run-up (Above TGZ) Debris line 3D Shoreline Change • ORTHOPHOTO Prior Cyclone • DTM PAM LIDAR DATA (2012) After Cyclone PAM UAV DATA (2015) Example: Map of Change Takara Village,