Catch the King Tide 2021: All King Tide Data
Loftis, Jon Derek
Loftis, Jon Derek
Abstract
"Catch the King" is a community science GPS flood extent mapping effort centered in Tidewater Virginia, USA, that seeks to map the King Tide's maximum inundation extent with the goal of validating and improving inundation prediction models like the Virginia Institute of Marine Science’s Tidewatch Map (https://cmap2.vims.edu/SCHISM/TidewatchViewer.html). This 36-hour storm tide inundation forecast model is based on the Center for Coastal Resources Management’s open-source SCHISM hydrodynamic model’s operational outputs, updated every 12 hours at noon and midnight (EST). Timestamped GPS-reported high water marks were collected by volunteers to effectively trace the high water line by pressing the 'Save Data' button in the free Sea Level Rise mobile app (available on iOS and Android) in regular intervals along the water's edge during one of the highest astronomical tides of 2021 on Saturday, November 6th, during the highest astronomical tide of the year, which was harmonically forecasted to be 3.53 ft. above MLLW at 10:44 AM EDT at Sewells Point in Norfolk, VA. Adverse weather conditions in coastal Virginia (rainfall and winds from the Northeast) resulted in amplified inundation in north-facing banks of rivers in the Southern Chesapeake Bay, but less volunteers were willing to map the inundation during the rain. Catch the King saw more than 100 volunteers contribute their data in 2021 on Saturday, November 6th. Citizen scientists of all ages collected 5,000+ GPS-reported high water marks and collected over 150 pictures of flooding through the Sea Level Rise app (not including images shared through the “Help Catch the King Tide” Facebook group). While this represents less volunteers and data than collected in previous years with Catch the King, the volunteer base was in transition to Wetlands Watch and Concursive’s new app version, while mapping even more tidal inundation events through year-round flood monitoring efforts throughout 2021.
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Date
2021-11-18
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Sea Level Rise, Tides, Flooding, Virginia, Citizen Science, Community Science, Inundation Data
Citation
Loftis, Jon Derek, "Catch the King Tide 2021: All King Tide Data" (2021). Data. William & Mary. https://doi.org/10.25773/carp-pv88
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Virginia Institute of Marine Science
Center for Coastal Resources Management (CCRM)
Center for Coastal Resources Management (CCRM)
DOI
<p><a href="https://doi.org/10.25773/carp-pv88" target="_blank">https://doi.org/10.25773/carp-pv88</a></p>