The absorption of atmospheric carbon dioxide (CO2) into the ocean lowers the pH of the waters. This so-called ocean acidification could have important consequences for marine ecosystems. To better understand the extent of this ocean acidification in coastal waters, we conducted hydrographic surveys along the continental shelf of western North America from central Canada to northern Mexico. We o...

The overall objectives of our project are 1) to determine the characteristics of channel features that can form when the present continental shelf is subaerially exposed during low sea-level conditions and 2) to determine whether these features would be buried when sea-level returned to its present position and, if so, how deeply. During FY01, our objectives have been to adapt the model to run ...

1. Theoretical investigations of the vertical structure of mean currents, tidal flows, and low frequency (infragravity) oscillations on the inner shelf and inside the surf zone. This work expands on recent theoretical developments for shear instabilities that follow methodology developed for tidal flows on the continental shelf. Results will be compared with field data examined as part of the s...

continental slope. Historically, four mechanisms have been suggested (or assumed): (1) eddies shed from the ACC, (2) flow into the cross-shelf-cutting canyons with overflow onto the nominal shelf, (3) general upwelling, and (4) episodic sweeping of ACC meanders over the shelf. The mooring array showed that for the years of deployment, the dominant mechanism is eddies; upwelling may also contrib...

Magnetic anomalies associatedwith new ocean crust formation in the Adare Basin off north-western Ross Sea (43–26Ma) can be traced directly into the Northern Basin that underlies the adjacent morphological continental shelf, implying a continuity in the emplacement of oceanic crust. Steep gravity gradients along the margins of the Northern Basin, particularly in the east, suggest that little ext...

[1] Here we show that labile particulate iron andmanganese concentrations in the upper 500 m of the Western Subarctic Pacific, an iron-limited High Nutrient Low Chlorophyll (HNLC) region, have prominent subsurface maxima between 100–200 m, reaching 3 nM and 600 pM, respectively. The subsurface concentration maxima in particulate Fe are characterized by a more reduced oxidation state, suggesting...

EDITORIAL article Front. Mar. Sci., 18 January 2023Sec. Coastal Ocean Processes Volume 10 - 2023 | https://doi.org/10.3389/fmars.2023.1137312

Abstract