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Trends in Physical Properties at the Southern New England Shelf Break
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Zeitschriftentitel: | Journal of Geophysical Research: Oceans |
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Personen und Körperschaften: | , , |
In: | Journal of Geophysical Research: Oceans, 125, 2020, 2 |
Format: | E-Article |
Sprache: | Englisch |
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American Geophysical Union (AGU)
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author_facet |
Harden, B. E. Gawarkiewicz, G. G. Infante, M. Harden, B. E. Gawarkiewicz, G. G. Infante, M. |
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author |
Harden, B. E. Gawarkiewicz, G. G. Infante, M. |
spellingShingle |
Harden, B. E. Gawarkiewicz, G. G. Infante, M. Journal of Geophysical Research: Oceans Trends in Physical Properties at the Southern New England Shelf Break Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography |
author_sort |
harden, b. e. |
spelling |
Harden, B. E. Gawarkiewicz, G. G. Infante, M. 2169-9275 2169-9291 American Geophysical Union (AGU) Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography http://dx.doi.org/10.1029/2019jc015784 <jats:title>Abstract</jats:title><jats:p>We analyze 11 years (2003–2013) of repeat temperature and salinity sections from across the New England shelf break south of Cape Cod during early summer (June–July). The mean sections resolved the shelf break front which supports the Shelf Break Jet, a vital component of the regional circulation. Individual sections showed a great deal of variability associated with meanders in the shelf break front consistent with previous studies in the region. Over the 11 year record, the shelf region (inshore of the 100 m isobath) warmed by 0.26 °C yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0001.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0001" />, with the majority of this warming occurring shallower than 20 m (0.58 °C yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0002.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0002" />). The full‐depth trend agrees well with previous studies of shelf warming to the north and the south of our study region. The temperature and salinity of the offshore edge of the Cold Pool Water on the shelf did not change significantly during this period. The surface warming on the shelf resulted in a decrease in near‐surface density of 0.12 kg m <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0003.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0003" /> yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0004.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0004" /> and an increase in stratification between 10 and 15 m of <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0005.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0005" /> s <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0006.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0006" /> yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0007.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0007" />. Offshore of the shelf break, the Slope Water also warmed and became more saline by 0.21 °C yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0008.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0008" /> and 0.04 yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0009.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0009" /> respectively, resulting in a maximal reduction in density of 0.01 kg m <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0010.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0010" /> yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0011.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0011" />. In the Shelf Break Front, there is some evidence of freshening and a reduction in density, which may have resulted from an offshore shift in the Cold Pool but the statistical significance is small.</jats:p> Trends in Physical Properties at the Southern New England Shelf Break Journal of Geophysical Research: Oceans |
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10.1029/2019jc015784 |
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Geologie und Paläontologie Geographie Physik Technik Chemie und Pharmazie Allgemeine Naturwissenschaft |
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American Geophysical Union (AGU), 2020 |
imprint_str_mv |
American Geophysical Union (AGU), 2020 |
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2169-9275 2169-9291 |
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2169-9275 2169-9291 |
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2020 |
publisher |
American Geophysical Union (AGU) |
recordtype |
ai |
record_format |
ai |
series |
Journal of Geophysical Research: Oceans |
source_id |
49 |
title |
Trends in Physical Properties at the Southern New England Shelf Break |
title_unstemmed |
Trends in Physical Properties at the Southern New England Shelf Break |
title_full |
Trends in Physical Properties at the Southern New England Shelf Break |
title_fullStr |
Trends in Physical Properties at the Southern New England Shelf Break |
title_full_unstemmed |
Trends in Physical Properties at the Southern New England Shelf Break |
title_short |
Trends in Physical Properties at the Southern New England Shelf Break |
title_sort |
trends in physical properties at the southern new england shelf break |
topic |
Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography |
url |
http://dx.doi.org/10.1029/2019jc015784 |
publishDate |
2020 |
physical |
|
description |
<jats:title>Abstract</jats:title><jats:p>We analyze 11 years (2003–2013) of repeat temperature and salinity sections from across the New England shelf break south of Cape Cod during early summer (June–July). The mean sections resolved the shelf break front which supports the Shelf Break Jet, a vital component of the regional circulation. Individual sections showed a great deal of variability associated with meanders in the shelf break front consistent with previous studies in the region. Over the 11 year record, the shelf region (inshore of the 100 m isobath) warmed by 0.26 °C yr
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0001.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0001" />, with the majority of this warming occurring shallower than 20 m (0.58 °C yr
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0002.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0002" />). The full‐depth trend agrees well with previous studies of shelf warming to the north and the south of our study region. The temperature and salinity of the offshore edge of the Cold Pool Water on the shelf did not change significantly during this period. The surface warming on the shelf resulted in a decrease in near‐surface density of 0.12 kg m
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0003.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0003" /> yr
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0004.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0004" /> and an increase in stratification between 10 and 15 m of
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0005.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0005" /> s
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0006.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0006" /> yr
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0007.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0007" />. Offshore of the shelf break, the Slope Water also warmed and became more saline by 0.21 °C yr
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0008.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0008" /> and 0.04 yr
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0009.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0009" /> respectively, resulting in a maximal reduction in density of 0.01 kg m
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0010.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0010" /> yr
<jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0011.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0011" />. In the Shelf Break Front, there is some evidence of freshening and a reduction in density, which may have resulted from an offshore shift in the Cold Pool but the statistical significance is small.</jats:p> |
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author | Harden, B. E., Gawarkiewicz, G. G., Infante, M. |
author_facet | Harden, B. E., Gawarkiewicz, G. G., Infante, M., Harden, B. E., Gawarkiewicz, G. G., Infante, M. |
author_sort | harden, b. e. |
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description | <jats:title>Abstract</jats:title><jats:p>We analyze 11 years (2003–2013) of repeat temperature and salinity sections from across the New England shelf break south of Cape Cod during early summer (June–July). The mean sections resolved the shelf break front which supports the Shelf Break Jet, a vital component of the regional circulation. Individual sections showed a great deal of variability associated with meanders in the shelf break front consistent with previous studies in the region. Over the 11 year record, the shelf region (inshore of the 100 m isobath) warmed by 0.26 °C yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0001.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0001" />, with the majority of this warming occurring shallower than 20 m (0.58 °C yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0002.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0002" />). The full‐depth trend agrees well with previous studies of shelf warming to the north and the south of our study region. The temperature and salinity of the offshore edge of the Cold Pool Water on the shelf did not change significantly during this period. The surface warming on the shelf resulted in a decrease in near‐surface density of 0.12 kg m <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0003.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0003" /> yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0004.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0004" /> and an increase in stratification between 10 and 15 m of <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0005.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0005" /> s <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0006.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0006" /> yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0007.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0007" />. Offshore of the shelf break, the Slope Water also warmed and became more saline by 0.21 °C yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0008.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0008" /> and 0.04 yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0009.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0009" /> respectively, resulting in a maximal reduction in density of 0.01 kg m <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0010.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0010" /> yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0011.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0011" />. In the Shelf Break Front, there is some evidence of freshening and a reduction in density, which may have resulted from an offshore shift in the Cold Pool but the statistical significance is small.</jats:p> |
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spelling | Harden, B. E. Gawarkiewicz, G. G. Infante, M. 2169-9275 2169-9291 American Geophysical Union (AGU) Earth and Planetary Sciences (miscellaneous) Space and Planetary Science Geochemistry and Petrology Geophysics Oceanography http://dx.doi.org/10.1029/2019jc015784 <jats:title>Abstract</jats:title><jats:p>We analyze 11 years (2003–2013) of repeat temperature and salinity sections from across the New England shelf break south of Cape Cod during early summer (June–July). The mean sections resolved the shelf break front which supports the Shelf Break Jet, a vital component of the regional circulation. Individual sections showed a great deal of variability associated with meanders in the shelf break front consistent with previous studies in the region. Over the 11 year record, the shelf region (inshore of the 100 m isobath) warmed by 0.26 °C yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0001.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0001" />, with the majority of this warming occurring shallower than 20 m (0.58 °C yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0002.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0002" />). The full‐depth trend agrees well with previous studies of shelf warming to the north and the south of our study region. The temperature and salinity of the offshore edge of the Cold Pool Water on the shelf did not change significantly during this period. The surface warming on the shelf resulted in a decrease in near‐surface density of 0.12 kg m <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0003.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0003" /> yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0004.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0004" /> and an increase in stratification between 10 and 15 m of <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0005.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0005" /> s <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0006.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0006" /> yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0007.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0007" />. Offshore of the shelf break, the Slope Water also warmed and became more saline by 0.21 °C yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0008.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0008" /> and 0.04 yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0009.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0009" /> respectively, resulting in a maximal reduction in density of 0.01 kg m <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0010.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0010" /> yr <jats:inline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="graphic/jgrc23814-math-0011.png" xlink:title="urn:x-wiley:jgrc:media:jgrc23814:jgrc23814-math-0011" />. In the Shelf Break Front, there is some evidence of freshening and a reduction in density, which may have resulted from an offshore shift in the Cold Pool but the statistical significance is small.</jats:p> Trends in Physical Properties at the Southern New England Shelf Break Journal of Geophysical Research: Oceans |
spellingShingle | Harden, B. E., Gawarkiewicz, G. G., Infante, M., Journal of Geophysical Research: Oceans, Trends in Physical Properties at the Southern New England Shelf Break, Earth and Planetary Sciences (miscellaneous), Space and Planetary Science, Geochemistry and Petrology, Geophysics, Oceanography |
title | Trends in Physical Properties at the Southern New England Shelf Break |
title_full | Trends in Physical Properties at the Southern New England Shelf Break |
title_fullStr | Trends in Physical Properties at the Southern New England Shelf Break |
title_full_unstemmed | Trends in Physical Properties at the Southern New England Shelf Break |
title_short | Trends in Physical Properties at the Southern New England Shelf Break |
title_sort | trends in physical properties at the southern new england shelf break |
title_unstemmed | Trends in Physical Properties at the Southern New England Shelf Break |
topic | Earth and Planetary Sciences (miscellaneous), Space and Planetary Science, Geochemistry and Petrology, Geophysics, Oceanography |
url | http://dx.doi.org/10.1029/2019jc015784 |