ReadMe Author: MUHAMAD ZAKI BIN ZULKIFLI, ORCID ID 0009-0000-8587-0539 Dataset DOI  https://doi.org/10.5258/SOTON/D3159 This dataset supports the thesis entitled AWARDED BY: Univeristy of Southampton DATE OF AWARD: 2024 DESCRIPTION OF THE DATA The datasets consist of bathymetry data for 3 locations for each science chapter in the thesis. Chapter 2: Knight Inlet, Chapter 3: Squamish pro-delta, Chapter 4: Hunga volcano. The data can be viewed using ArcGIS software. This dataset contains: Bathymetry data for 3 locations and additional backscatter data for Chapter 4. Date of data collection: Chapter 2: 2005 and 2018 Chapter 3: April to September 2011 Chapter 4: Pre eruption (data between 2015-2017) and Pos eruption (data between April – September 2022) Information about geographic location of data collection: Chapter 2: Knight Inlet, British Columbia, Canada Chapter 3: Squamish prodelta, British Columbia, Canada Chapter 4: Hunga Tonga volcano, Kingdom of Tonga Licence: CC-BY Related projects/Funders: Chapter 2: Knight inlet: NERC funding (NE/R015953/1, NE/M007138/1, NE/M017540/1, NE/P009190/1, NE/P005780/1) Chapter 3: Squamish pro-delta: NERC funding (NE/M007138/1, NE/M017540/1, NE/P009190/1, NE/P005780/1). Chapter 4: Hunga Tonga volcano: Grant name: Offshore hazard cascades from the largest volcanic eruption this century (NE/X00239X/1) Related publication: DOI: 10.1016/j.epsl.2019.03.033 DOI: 10.1016/j.epsl.2016.06.021 DOI: 10.1126/science.adi3038 Date that the file was created: JULY, 2024