Catch the King Tide 2022: 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 2022, on Saturday, October 29th, which was harmonically forecasted to be 3.26 ft. above MLLW at 12:36 AM EST at Sewells Point in Norfolk, VA. 10-15 mph winds from the NE caused water levels in north-south facing rivers to experience slightly higher water levels (at approximately 0.25 ft. higher than the opposing river bank) than estimated in the initial tidal forecast. Catch the King 2022 mapped more than 15,000 GPS high water marks collected by more than 150+ volunteers using the new SLR App version 3.0.0 from Wetlands Watch, released earlier in 2022. The volunteer breakdown for Catch the King in 2022 revealed that the Middle Peninsula and Northern Neck region of VA collected 3,609 GPS-recorded high water marks among 29 volunteers. Many of our community scientists in this region are Master Naturalists and Master Gardeners, and this represents an area that previously had been a significant gap in our past flood mapping coverage, so a special thank you goes out to these groups of diligent volunteers who helped collect data in new places in rural tidewater VA. Volunteers in Norfolk and VA Beach came in a close second/third by collecting ~2275 high water marks each.
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Date
2022-11-30
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Keywords
Sea Level Rise, Tides, Flooding, Virginia, Citizen Science, Community Science, Inundation Data
Citation
Loftis, Jon Derek, "Catch the King Tide 2022: All King Tide Data" (2022). Data. William & Mary. https://doi.org/10.25773/078t-b471
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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/10.25773/078t-b471" target="_blank">https://doi.org/10.25773/078t-b471</a></p>