Capturing local nuisance flooding events with HOBO pendant G data loggers in Key West, Florida US

Flooding impacts social, economic, and landscape systems globally. Changing climate and growing coastal populations exacerbate the outcomes of environmental hazards. Due to the spatial variability in exposure and vulnerability, coastal flooding must be understood at high spatial and temporal resolutions. This paper presents a novel deployment technique using inexpensive accelerometers to measure local floods. The technique is tested in Key West, FL, USA using storm drains to deploy HOBO pendant G data loggers. The feasibility of the method is tested by a team of local stakeholders and researchers through four deployments between July 2019 – November 2021. All deployments resulted in 22 sensors successfully recording data, with 15 of these sensors recording flooding. Sensors captured an average of 13.58 inundation events causing the storm drains to be inundated on average 12.07% of the deployment time. Measured inundation events coincide with local National Oceanic and Atmospheric Admini..., The research team — which includes a Key West municipal employee, researchers from Northeastern University and researchers from the United States Naval Academy — use HOBO pendant G data loggers to collect flooding data in Key West. The loggers record acceleration and angular displacement (tilt) in three dimensions, allowing for characterization of three-dimensional motion. For nuisance flooding, the acceleration and tilt are used to record localized flood events since rising water changes the orientation of the buoyant sensors, causing angular displacement and a change in the axis experiencing gravitational acceleration. Storm drains were selected for deployments, providing publicly accessible areas that were both prone to frequent inundation and fixed locations for sensor deployment. Using knowledge of previous flooding events and local expertise, 14 total deployment locations were selected. Each location has a publicly accessible storm drain to attach the loggers. The research team de..., All data files are saved as .csv from the HOBOware v3.7.21. The code was created using RStudio v1.4.1717. , # Capturing local nuisance flooding events with HOBO pendant G data loggers in Key West, Florida US

Stakeholder Driven Sensor Deployments to Characterize Nuisance Flood Inundation and Duration in Key West Florida
We test a novel deployment technique using inexpensive accelerometers to measure local floods in Key West, FL, USA using storm drains to deploy HOBO pendant G data loggers. The feasibility of the method is tested by a team of local stakeholders and researchers through four deployments between July 2019 - November 2021. All deployments resulted in 22 sensors successfully recording data, with 15 of these sensors recording flooding.

## Description of the Data and file structure

The sum acceleration and the tilt in all three dimensions were downloaded through HOBOware v3.7.21, exported as .csv files and uploaded to RStudio v1.4.1717 for processing. Times at which a sensor recorded a flooding event were identified using tilt in the x-direction and z-direction. A .csv file is crea...