A model-dye comparison experiment in the tidal mixing front zone on the southern flank of Georges Bank
Author Posting. © American Geophysical Union, 2008. 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 113 (2008): C02005, doi:10.1029/2007JC004106. A process-orient...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/3528 2023-05-15T17:45:46+02:00 A model-dye comparison experiment in the tidal mixing front zone on the southern flank of Georges Bank Chen, Changsheng Xu, Qichun Houghton, Robert Beardsley, Robert C. 2008-02-09 application/pdf https://hdl.handle.net/1912/3528 en_US eng American Geophysical Union https://doi.org/10.1029/2007JC004106 Journal of Geophysical Research 113 (2008): C02005 https://hdl.handle.net/1912/3528 doi:10.1029/2007JC004106 Journal of Geophysical Research 113 (2008): C02005 doi:10.1029/2007JC004106 Model-dye comparison Tidal mixing front Lateral diffusion Article 2008 ftwhoas https://doi.org/10.1029/2007JC004106 2022-05-28T22:58:00Z Author Posting. © American Geophysical Union, 2008. 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 113 (2008): C02005, doi:10.1029/2007JC004106. A process-oriented model-dye comparison experiment was conducted to examine the ability of a numerical ocean model to simulate the observed movement of dye across the tidal mixing front on the southern flank of Georges Bank during 22–26 May 1999. The experiment was made using the unstructured-grid Finite-Volume Coastal Ocean Model (FVCOM) with varying horizontal resolution. The results indicate that the observed cross-isobath movement of the dye patch was primarily controlled by meso-scale temporal and spatial variability of the water temperature and salinity fields. Onset of vertical stratification tended to slow down an upward stretching of the dye column and trapped the dye within the bottom mixed layer. To reach a convergent numerical solution that reproduced the observed lateral turbulent dispersion of dye, the FVCOM grid required a horizontal resolution of ∼500 m in the dye study region. Within the tidal mixing front of Georges Bank, the movement of the center of the dye patch was mainly driven by the ensemble velocity integrated over the dye volume, with a first-order contribution from vertical shear of the dye's horizontal velocity. This research was supported by the U.S. GLOBEC Northwest Atlantic/Georges Bank Program NSF (OCE-0234545; OCE-0227679) and NOAA grants (NA-16OP2323) to Changsheng Chen and Qixchun Xu, NSF grant (OCE-0236270) to Robert Houghton, and the Smith Chair in Coastal Oceanography and NOAA grant (NA-17RJ1223) to R.C. Beardsley. The experiments were conducted using the Linux cluster computers of the Marine Ecosystem Dynamics Modeling Laboratory at the School of Marine Science and Technology, University of Massachusetts- Dartmouth, funded by the SMAST Fishery Program through NOAA grants ... Article in Journal/Newspaper Northwest Atlantic Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Journal of Geophysical Research 113 C2 |
institution |
Open Polar |
collection |
Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) |
op_collection_id |
ftwhoas |
language |
English |
topic |
Model-dye comparison Tidal mixing front Lateral diffusion |
spellingShingle |
Model-dye comparison Tidal mixing front Lateral diffusion Chen, Changsheng Xu, Qichun Houghton, Robert Beardsley, Robert C. A model-dye comparison experiment in the tidal mixing front zone on the southern flank of Georges Bank |
topic_facet |
Model-dye comparison Tidal mixing front Lateral diffusion |
description |
Author Posting. © American Geophysical Union, 2008. 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 113 (2008): C02005, doi:10.1029/2007JC004106. A process-oriented model-dye comparison experiment was conducted to examine the ability of a numerical ocean model to simulate the observed movement of dye across the tidal mixing front on the southern flank of Georges Bank during 22–26 May 1999. The experiment was made using the unstructured-grid Finite-Volume Coastal Ocean Model (FVCOM) with varying horizontal resolution. The results indicate that the observed cross-isobath movement of the dye patch was primarily controlled by meso-scale temporal and spatial variability of the water temperature and salinity fields. Onset of vertical stratification tended to slow down an upward stretching of the dye column and trapped the dye within the bottom mixed layer. To reach a convergent numerical solution that reproduced the observed lateral turbulent dispersion of dye, the FVCOM grid required a horizontal resolution of ∼500 m in the dye study region. Within the tidal mixing front of Georges Bank, the movement of the center of the dye patch was mainly driven by the ensemble velocity integrated over the dye volume, with a first-order contribution from vertical shear of the dye's horizontal velocity. This research was supported by the U.S. GLOBEC Northwest Atlantic/Georges Bank Program NSF (OCE-0234545; OCE-0227679) and NOAA grants (NA-16OP2323) to Changsheng Chen and Qixchun Xu, NSF grant (OCE-0236270) to Robert Houghton, and the Smith Chair in Coastal Oceanography and NOAA grant (NA-17RJ1223) to R.C. Beardsley. The experiments were conducted using the Linux cluster computers of the Marine Ecosystem Dynamics Modeling Laboratory at the School of Marine Science and Technology, University of Massachusetts- Dartmouth, funded by the SMAST Fishery Program through NOAA grants ... |
format |
Article in Journal/Newspaper |
author |
Chen, Changsheng Xu, Qichun Houghton, Robert Beardsley, Robert C. |
author_facet |
Chen, Changsheng Xu, Qichun Houghton, Robert Beardsley, Robert C. |
author_sort |
Chen, Changsheng |
title |
A model-dye comparison experiment in the tidal mixing front zone on the southern flank of Georges Bank |
title_short |
A model-dye comparison experiment in the tidal mixing front zone on the southern flank of Georges Bank |
title_full |
A model-dye comparison experiment in the tidal mixing front zone on the southern flank of Georges Bank |
title_fullStr |
A model-dye comparison experiment in the tidal mixing front zone on the southern flank of Georges Bank |
title_full_unstemmed |
A model-dye comparison experiment in the tidal mixing front zone on the southern flank of Georges Bank |
title_sort |
model-dye comparison experiment in the tidal mixing front zone on the southern flank of georges bank |
publisher |
American Geophysical Union |
publishDate |
2008 |
url |
https://hdl.handle.net/1912/3528 |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Journal of Geophysical Research 113 (2008): C02005 doi:10.1029/2007JC004106 |
op_relation |
https://doi.org/10.1029/2007JC004106 Journal of Geophysical Research 113 (2008): C02005 https://hdl.handle.net/1912/3528 doi:10.1029/2007JC004106 |
op_doi |
https://doi.org/10.1029/2007JC004106 |
container_title |
Journal of Geophysical Research |
container_volume |
113 |
container_issue |
C2 |
_version_ |
1766149010196791296 |