Land-based sensors reveal high frequency of coastal flooding

Abstract Coastal flooding is occurring more frequently due to global sea-level rise, among other factors. However, current understanding of coastal flood frequency and sea-level rise impacts is predominantly based on tide gauges, which do not measure water levels on land. Here, we present data from...

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Main Authors: Miyuki Hino, Katherine Anarde, Tessa Fridell, Ryan McCune, Thomas Thelen, Elizabeth Farquhar, Perri Woodard, Anthony Whipple
Format: Article
Language:English
Published: Nature Portfolio 2025-06-01
Series:Communications Earth & Environment
Online Access:https://doi.org/10.1038/s43247-025-02326-w
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author Miyuki Hino
Katherine Anarde
Tessa Fridell
Ryan McCune
Thomas Thelen
Elizabeth Farquhar
Perri Woodard
Anthony Whipple
author_facet Miyuki Hino
Katherine Anarde
Tessa Fridell
Ryan McCune
Thomas Thelen
Elizabeth Farquhar
Perri Woodard
Anthony Whipple
author_sort Miyuki Hino
collection DOAJ
description Abstract Coastal flooding is occurring more frequently due to global sea-level rise, among other factors. However, current understanding of coastal flood frequency and sea-level rise impacts is predominantly based on tide gauges, which do not measure water levels on land. Here, we present data from a novel network of land-based flood sensors in the state of North Carolina, USA. We demonstrate that tide-gauge data are poor indicators of flooding: floods occur 26–128 days annually, an order of magnitude greater than what regional tide gauges suggest in some places. Improving the accuracy of coastal flood measures is critical for identifying the impacts of sea-level rise and developing effective adaptation strategies.
format Article
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institution OA Journals
issn 2662-4435
language English
publishDate 2025-06-01
publisher Nature Portfolio
record_format Article
series Communications Earth & Environment
spelling doaj-art-65da704a064a413eb832062dbbdff2a72025-08-20T02:05:42ZengNature PortfolioCommunications Earth & Environment2662-44352025-06-01611610.1038/s43247-025-02326-wLand-based sensors reveal high frequency of coastal floodingMiyuki Hino0Katherine Anarde1Tessa Fridell2Ryan McCune3Thomas Thelen4Elizabeth Farquhar5Perri Woodard6Anthony Whipple7University of North Carolina at Chapel HillNorth Carolina State UniversityUniversity of North Carolina at Chapel HillNorth Carolina State UniversityNorth Carolina State UniversityNorth Carolina State UniversityNorth Carolina State UniversityUniversity of North Carolina at Chapel HillAbstract Coastal flooding is occurring more frequently due to global sea-level rise, among other factors. However, current understanding of coastal flood frequency and sea-level rise impacts is predominantly based on tide gauges, which do not measure water levels on land. Here, we present data from a novel network of land-based flood sensors in the state of North Carolina, USA. We demonstrate that tide-gauge data are poor indicators of flooding: floods occur 26–128 days annually, an order of magnitude greater than what regional tide gauges suggest in some places. Improving the accuracy of coastal flood measures is critical for identifying the impacts of sea-level rise and developing effective adaptation strategies.https://doi.org/10.1038/s43247-025-02326-w
spellingShingle Miyuki Hino
Katherine Anarde
Tessa Fridell
Ryan McCune
Thomas Thelen
Elizabeth Farquhar
Perri Woodard
Anthony Whipple
Land-based sensors reveal high frequency of coastal flooding
Communications Earth & Environment
title Land-based sensors reveal high frequency of coastal flooding
title_full Land-based sensors reveal high frequency of coastal flooding
title_fullStr Land-based sensors reveal high frequency of coastal flooding
title_full_unstemmed Land-based sensors reveal high frequency of coastal flooding
title_short Land-based sensors reveal high frequency of coastal flooding
title_sort land based sensors reveal high frequency of coastal flooding
url https://doi.org/10.1038/s43247-025-02326-w
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AT katherineanarde landbasedsensorsrevealhighfrequencyofcoastalflooding
AT tessafridell landbasedsensorsrevealhighfrequencyofcoastalflooding
AT ryanmccune landbasedsensorsrevealhighfrequencyofcoastalflooding
AT thomasthelen landbasedsensorsrevealhighfrequencyofcoastalflooding
AT elizabethfarquhar landbasedsensorsrevealhighfrequencyofcoastalflooding
AT perriwoodard landbasedsensorsrevealhighfrequencyofcoastalflooding
AT anthonywhipple landbasedsensorsrevealhighfrequencyofcoastalflooding