coastal

The proposed satellite data-based model provided coastal depth estimations for three Korean coastal areas with unique characteristics: Cheonsuman (a), Hallim (b), and Samcheok (c). Credit: Journal of Applied Remote Sensing (2024). DOI: 10.1117/1.JRS.18.014522 Since ancient times, knowing the depth of coastal waters has been key to safe and successful navigation and to exploit the sea's resources. Today, bathymetry—the…

The study provides a new comprehensive look at the flood risks for 32 cities on three coasts by 2050. Credit: Leonard Ohenhen. One in 50 people living in two dozen coastal cities in the United States could experience significant flooding by 2050, according to Virginia Tech-led research. Published in Nature, the study combines satellite-obtained…

This image shows SWOT satellite data for water surface height in part of Mendocino County, Northern California, on Jan. 15, before several atmospheric rivers arrived, and on Feb. 4, after the first storms. Light blue and green indicate the highest water levels relative to mean sea level. (Inland water heights include the underlying ground elevation.) Credit: NASA/JPL-Caltech A series of atmospheric rivers drenched California in…

Net globally-integrated coastal fluxes of (a) CO2 , (b) N2O and (c) CH4 over the wide and narrow coastal oceans. Figure shows individual products and models (symbols) and their median and interquartile ranges. Models are shown for the full ensemble available (11 models for CO2 and 4 for N2O) and a subset of higher resolution models (4 models for CO2 and 2 for N2O, see Methods and Table 2 for details). Previous estimates available for the narrow…

Using scenario based stress testing to identify medium (2050) and long term (2100) sea level rise risksAbstractThis project utilizes a scenario based qualitative stress testing approach to identify US coastal census tracts expected to adversely impacted by sea level rise (SLR) in the medium (2050) and long term (2100). One Baseline and two ‘plausible but severe’ Adverse scenarios were designed covering 1–7ft of sea level rise.The key observations through this analysis were that that outside of current FEMA high risk…

Hurricane Michael-caused erosion at the South End archaeological site on Ossabaw Island, Georgia, taken during the UGA Laboratory of Archaeology Field School. This type of erosion damage to archaeological sites is modeled in the paper along the entire Georgia coast. Credit: UGA Laboratory of Archaeology, CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/) Thousands of historic and archaeological sites in Georgia are at…

Credit: Pixabay/CC0 Public Domain A new Tulane University study published in Nature Communications offers a glimpse into the possible impact of climate change on coastal wetlands 50 years or longer into the future. Scientists are usually forced to rely on computer models to project the long-term effects of rising seas. But an unexpected set of…

Photo: Avangrid A poll released today reveals that a clear majority of US coastal residents support offshore wind development. The enthusiasm spans across the political spectrum, from Democrats to Republicans to Independents, and includes those living on the East, West, and Gulf coasts, according to the poll from Climate Nexus and nonprofit offshore wind advocacy group Turn Forward poll. About two-thirds of people living in coastal counties are giving a big thumbs up to offshore…

New research has unveiled the ‘Anthropogenic Nitrogen Pump’ effect in coastal seas. This phenomenon, driven by human activities like economic development, leads to an imbalance in nitrogen and phosphorus levels, affecting the growth and type of microalgae.A collaborative study between the University of East Anglia and the Ocean University of China has identified the ‘Anthropogenic Nitrogen Pump’ in coastal seas. This process, resulting from human-induced nutrient imbalance, causes phytoplankton to alter their nutrient…

Credit: CC0 Public Domain They are among the most productive and biodiverse areas of the world's oceans: coastal upwelling regions along the eastern boundaries of the Atlantic and Pacific Oceans. There, equatorward winds cause near-surface water to move away from the coast. This brings cold, nutrient-rich water from the depths to the surface, inducing the growth of phytoplankton and providing the basis for a rich marine…