Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave
Author Posting. © American Geophysical Union, 2022. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 127(1), (2022): e2021JC017927, https://doi.org/10.1029...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/28617 2023-05-15T17:45:45+02:00 Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave Chen, Ke Gawarkiewicz, Glen G. Yang, Jiayan 2021-12-08 https://hdl.handle.net/1912/28617 unknown American Geophysical Union https://doi.org/10.1029/2021JC017927 Chen, K., Gawarkiewicz, G., & Yang, J. (2022). Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave. Journal of Geophysical Research: Oceans, 127(1), e2021JC017927. https://hdl.handle.net/1912/28617 doi:10.1029/2021JC017927 Chen, K., Gawarkiewicz, G., & Yang, J. (2022). Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave. Journal of Geophysical Research: Oceans, 127(1), e2021JC017927. doi:10.1029/2021JC017927 Drivers of Marine heatwave Warm core rings and cyclonic eddies Shelfbreak front and frontogenesis Pressure gradient setup Wind-driven upwelling and bottom intrusion Cross-shelf exchange Article 2021 ftwhoas https://doi.org/10.1029/2021JC017927 2022-10-29T22:57:31Z Author Posting. © American Geophysical Union, 2022. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 127(1), (2022): e2021JC017927, https://doi.org/10.1029/2021JC017927. Observations and high-resolution numerical modeling are used to investigate the dynamical processes related to the initiation of an advective Marine Heatwave in the Middle Atlantic Bight of the Northwest Atlantic continental shelf. Both the observations and the model identify two significant cross-shelf intrusions in November 2016 and January 2017, with the latter inducing large-magnitude water mass anomalies across the shelf. Model prognostic fields reveal the importance of the combination of cyclonic eddies or ringlets and upwelling-favorable winds in producing the large-distance cross-shelf penetration and temperature/salinity anomalies. The cyclonic eddies in close proximity to the shelfbreak set up local along-isobath pressure gradients and provide favorable conditions for the intensification of the shelfbreak front, both processes driving cross-isobath intrusions of warm, salty offshore water onto the outer continental shelf. Subsequently, strong and persistent upwelling-favorable winds drive a rapid, bottom intensified cross-shelf penetration in January 2017 composed of the anomalous water mass off the shelfbreak. The along-shelf settings including realistic representation of bathymetric features are essential in the characteristics of the cross-shelf penetration. The results highlight the importance of smaller scale cyclonic eddies and the intricacy of the interplay between multiple processes to drive significant cross-shelf events. This work was supported by Woods Hole Oceanographic Institution (WHOI) Independent Research and Development (IR&D) award and National Oceanic and Atmospheric Administration (NOAA) Climate Program Office (CPO) Climate Variability and Predictability (CVP) ... Article in Journal/Newspaper Northwest Atlantic Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Journal of Geophysical Research: Oceans 127 1 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
unknown |
topic |
Drivers of Marine heatwave Warm core rings and cyclonic eddies Shelfbreak front and frontogenesis Pressure gradient setup Wind-driven upwelling and bottom intrusion Cross-shelf exchange |
spellingShingle |
Drivers of Marine heatwave Warm core rings and cyclonic eddies Shelfbreak front and frontogenesis Pressure gradient setup Wind-driven upwelling and bottom intrusion Cross-shelf exchange Chen, Ke Gawarkiewicz, Glen G. Yang, Jiayan Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave |
topic_facet |
Drivers of Marine heatwave Warm core rings and cyclonic eddies Shelfbreak front and frontogenesis Pressure gradient setup Wind-driven upwelling and bottom intrusion Cross-shelf exchange |
description |
Author Posting. © American Geophysical Union, 2022. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research: Oceans 127(1), (2022): e2021JC017927, https://doi.org/10.1029/2021JC017927. Observations and high-resolution numerical modeling are used to investigate the dynamical processes related to the initiation of an advective Marine Heatwave in the Middle Atlantic Bight of the Northwest Atlantic continental shelf. Both the observations and the model identify two significant cross-shelf intrusions in November 2016 and January 2017, with the latter inducing large-magnitude water mass anomalies across the shelf. Model prognostic fields reveal the importance of the combination of cyclonic eddies or ringlets and upwelling-favorable winds in producing the large-distance cross-shelf penetration and temperature/salinity anomalies. The cyclonic eddies in close proximity to the shelfbreak set up local along-isobath pressure gradients and provide favorable conditions for the intensification of the shelfbreak front, both processes driving cross-isobath intrusions of warm, salty offshore water onto the outer continental shelf. Subsequently, strong and persistent upwelling-favorable winds drive a rapid, bottom intensified cross-shelf penetration in January 2017 composed of the anomalous water mass off the shelfbreak. The along-shelf settings including realistic representation of bathymetric features are essential in the characteristics of the cross-shelf penetration. The results highlight the importance of smaller scale cyclonic eddies and the intricacy of the interplay between multiple processes to drive significant cross-shelf events. This work was supported by Woods Hole Oceanographic Institution (WHOI) Independent Research and Development (IR&D) award and National Oceanic and Atmospheric Administration (NOAA) Climate Program Office (CPO) Climate Variability and Predictability (CVP) ... |
format |
Article in Journal/Newspaper |
author |
Chen, Ke Gawarkiewicz, Glen G. Yang, Jiayan |
author_facet |
Chen, Ke Gawarkiewicz, Glen G. Yang, Jiayan |
author_sort |
Chen, Ke |
title |
Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave |
title_short |
Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave |
title_full |
Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave |
title_fullStr |
Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave |
title_full_unstemmed |
Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave |
title_sort |
mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave |
publisher |
American Geophysical Union |
publishDate |
2021 |
url |
https://hdl.handle.net/1912/28617 |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Chen, K., Gawarkiewicz, G., & Yang, J. (2022). Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave. Journal of Geophysical Research: Oceans, 127(1), e2021JC017927. doi:10.1029/2021JC017927 |
op_relation |
https://doi.org/10.1029/2021JC017927 Chen, K., Gawarkiewicz, G., & Yang, J. (2022). Mesoscale and submesoscale shelf-ocean exchanges initialize an advective marine heatwave. Journal of Geophysical Research: Oceans, 127(1), e2021JC017927. https://hdl.handle.net/1912/28617 doi:10.1029/2021JC017927 |
op_doi |
https://doi.org/10.1029/2021JC017927 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
127 |
container_issue |
1 |
_version_ |
1766149001261875200 |