Exploring spatiotemporal patterns in hazardous hydrologic events: assessment, communication, and mitigation through geospatial technologies.

Location

D.P. Culp Center Room 303

Start Date

4-5-2024 2:30 PM

End Date

4-5-2024 3:30 PM

Name of Project's Faculty Sponsor

Ingrid Luffman

Faculty Sponsor's Department

Geosciences

Competition Type

Competitive

Type

Oral Presentation

Presentation Category

Science, Technology and Engineering

Abstract or Artist's Statement

Tennessee has a long history of meteorological hazards that have caused property damage and loss of life. Given climate change and variability, it is imperative to look at trends to ascertain changes spatiotemporally. Part one of the study uses Space-time cubes, a uniquely appropriate geographic tool, to analyze historical heavy precipitation (1-, 2- and 5-year returns), floods, and flash flood data in Tennessee counties to assess the trends, identify emerging hotspots/coldspots and display changes over space and time. For all return periods, trends analysis revealed that heavy precipitation events are increasing in several counties across the state, with middle Tennessee identified as a hotspot. While floods and flash flood event trends are mixed (with both increases and decreases) across the state counties, related property damages are increasing, especially in middle Tennessee. This study is an important step to understanding spatiotemporal trends and will be useful in federal, state, and county hazard mitigation planning. Part two of the study explores using ArcGIS Dashboards to set up an environment for automated real-time data visualization and to build a public-facing monitoring dashboard for Brush Creek (a stream that runs through downtown Johnson City) to provide an easy-to-read visualization of citizen scientist-contributed stage data.

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Apr 5th, 2:30 PM Apr 5th, 3:30 PM

Exploring spatiotemporal patterns in hazardous hydrologic events: assessment, communication, and mitigation through geospatial technologies.

D.P. Culp Center Room 303

Tennessee has a long history of meteorological hazards that have caused property damage and loss of life. Given climate change and variability, it is imperative to look at trends to ascertain changes spatiotemporally. Part one of the study uses Space-time cubes, a uniquely appropriate geographic tool, to analyze historical heavy precipitation (1-, 2- and 5-year returns), floods, and flash flood data in Tennessee counties to assess the trends, identify emerging hotspots/coldspots and display changes over space and time. For all return periods, trends analysis revealed that heavy precipitation events are increasing in several counties across the state, with middle Tennessee identified as a hotspot. While floods and flash flood event trends are mixed (with both increases and decreases) across the state counties, related property damages are increasing, especially in middle Tennessee. This study is an important step to understanding spatiotemporal trends and will be useful in federal, state, and county hazard mitigation planning. Part two of the study explores using ArcGIS Dashboards to set up an environment for automated real-time data visualization and to build a public-facing monitoring dashboard for Brush Creek (a stream that runs through downtown Johnson City) to provide an easy-to-read visualization of citizen scientist-contributed stage data.