Interdisciplinarity in practice: reflections from early-career researchers developing a risk-informed decision support environment for Tomorrow's cities

The concept of disaster risk is cross-disciplinary by nature and reducing disaster risk has become of interest for various disciplines. Yet, moving from a collection of multiple disciplinary perspectives to integrated interdisciplinary disaster risk approaches remains a fundamental challenge. This paper reflects on the experience of a group of early-career researchers spanning physical scientists, engineers and social scientists from different organisations across the global North and global South who came together to lead the refinement, operationalisation and testing of a risk-informed decision support environment for Tomorrow's Cities (TCDSE). Drawing on the notions of subjects and boundary objects, members of the group reflect on their individual and collective journey of transgressing disciplinary boundaries across three case studies between June–December 2021: operationalisation process of the TCDSE; development of a virtual urban testbed as a demonstration case for the implementation of the TCDSE; and consolidation of frequently asked questions about the TCDSE for communication purposes. The paper argues that (1) the production of boundary objects in interdisciplinary research nurtures relations of reciprocal recognition and the emergence of interdisciplinary subjects; (2) the intrinsic characteristics of boundary objects define the norms of engagement between disciplinary subjects and constrain the expression of interdisciplinary contradictions; and (3) affects and operations of power explain the contingent settlement of interdisciplinary disagreements and the emergence of new knowledge. Activating the interdisciplinary capacities of early-career researchers across disciplines and geographies is a fundamental step towards transforming siloed research practices to reduce disaster risk

Cybershake NZ v19.5: New Zealand simulation-based probabilistic seismic hazard analysis

This poster presents the computational workflow and results of the May 2019 version (v19.5) of probabilistic seismic hazard analysis (PSHA) in New Zealand (NZ) based on physics-based ground motion simulations (‘Cybershake NZ’). This version includes several notable advancements resulting from an improved velocity model (NZVM2.03) which now includes nine sedimentary basins across NZ (vs. 1 in v18.6), a NZ-wide Vs30 model, and revisions to the hybrid broadband ground motion simulation method of Graves and Pitarka (2010, 2015, 2016) based on simulation validation in Lee et al. (2019) which results in changes to the high-frequency path duration parametrization and removal of empirical site amplification in the low-frequency calculation

Cybershake NZ v19.5: New Zealand simulation-based probabilistic seismic hazard analysis

This paper presents a concise summary of the computational workflow and results of the May 2019 version (v19.5) of probabilistic seismic hazard analysis (PSHA) in New Zealand based on physics based ground motion simulations (‘Cybershake NZ’). This version includes several notable advancements resulting from an improved velocity model (NZVM2.03) which now includes nine sedimentary basins across NZ (vs. one in v18.6), a NZ-wide Vs30 model, and revisions to the hybrid broadband ground motion simulation method of Graves and Pitarka (2016) based on simulation validation in Lee et al. (2020) which results in changes to the high-frequency path duration parametrization and removal of empirical site amplification in the low-frequency calculation. Advances planned for the next (2020) version are also summarised

Cybershake NZ v20.8: New Zealand simulation-based probabilistic seismic hazard analysis

Introduction: This poster presents the computational workflow and results of the August 2020 version (v20.8) of probabilistic seismic hazard analysis (PSHA) in New Zealand (NZ) based on physics-based ground motion simulations (‘Cybershake NZ’). This version includes several notable advancements resulting from an improved NZ-wide Vs30 model, and revisions to the hybrid broadband ground motion simulation method of Graves and Pitarka (2010, 2015, 2016) based on simulation validation in Lee et al. (2019) which results in changes to the high-frequency method and the empirical site amplification factors around the transition frequency