In estuaries, land-surface and tidal elevation conspire to influence the amount of salt-water inundation in a specific location, ultimately affecting the distribution of estuary vegetation. Plants vary in their tolerances to salinity and inundation. Understanding even small changes in land-surface elevation at a site scale provides relevant information to managers seeking to design effective long-term restoration projects. Restoration of estuary habitats has been identified as a tool to mediate some anticipated effects of climate change, including flooding from sea-level rise, precipitation regimes, and storminess. Further, habitat restoration that is effective in the face of climate uncertainty is critical to the sustainable production of seafood and maintenance of ecosystem functions. We offer a simple method that links tidal elevations to upslope topography, allowing managers to determine where tidal inundation of upslope areas may occur. This method does not require complex modeling, rather we combine existing high-accuracy tide-gage information with LiDAR imagery. However, we found that if LiDAR is not flown at low tide, or at consistent tidal heights, it poses significant challenges in the interpretation of tidal elevations. Where LiDAR is consistently collected at low tide, this method of linking the tidal datum to upslope topography is not data-intensive, and does not require long-term data collection. Along with locally specific information, the types of map products that can be developed using this method should identify places that may be potentially vulnerable to salt-water inundation, along with places that may be effective migration corridors for marshes and other habitats.

中文翻译：

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添加到用于在河口地区进行潮汐淹没制图的工具箱。

在河口，陆地表面和潮汐高程共同影响特定位置的盐水淹没量，最终影响河口植被的分布。植物对盐度和淹没的耐受性各不相同。了解站点规模的地面高度变化即使很小，也可以为寻求设计有效的长期修复项目的管理人员提供相关信息。河口栖息地的恢复已被确定为调解气候变化某些预期影响的工具，包括海平面上升，洪水和暴雨造成的洪水。此外，面对气候不确定性而有效的栖息地恢复对于海鲜的可持续生产和维持生态系统功能至关重要。我们提供了一种将潮汐标高与上坡地形联系起来的简单方法，使管理人员可以确定上坡地区潮汐淹没的发生位置。该方法不需要复杂的建模，而是将现有的高精度潮汐信息与LiDAR图像结合在一起。但是，我们发现，如果LiDAR不在低潮时或在一致的潮汐高度上飞行，则在解释潮汐高度时会构成重大挑战。在退潮时始终收集LiDAR的地方，这种将潮汐基准与上坡形貌联系起来的方法并不占用大量数据，并且不需要长期收集数据。除了当地的特定信息之外，使用此方法可以开发的地图产品类型还应确定可能容易被盐水淹没的地方，