Hino Miyuki, Anarde Katherine, Fridell Tessa, McCune Ryan, Thelen Thomas, Farquhar Elizabeth, Woodard Perri, Whipple Anthony
University of North Carolina at Chapel Hill, Chapel Hill, NC USA.
North Carolina State University, Raleigh, NC USA.
Commun Earth Environ. 2025;6(1):404. doi: 10.1038/s43247-025-02326-w. Epub 2025 Jun 2.
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.
除其他因素外，由于全球海平面上升，沿海洪水发生得越来越频繁。然而，目前对沿海洪水频率和海平面上升影响的认识主要基于潮汐测量仪，而潮汐测量仪无法测量陆地上的水位。在此，我们展示了来自美国北卡罗来纳州一个新型陆基洪水传感器网络的数据。我们证明，潮汐测量仪数据对于洪水来说是很差的指标：每年发生洪水26 - 128天，比一些地方区域潮汐测量仪显示的情况高出一个数量级。提高沿海洪水测量的准确性对于确定海平面上升的影响以及制定有效的适应策略至关重要。
