Michael Spall | Woods Hole Oceanographic Institution (original) (raw)
Papers by Michael Spall
Journal of Physical Oceanography, Feb 14, 2022
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Journal of Physical Oceanography, Jul 1, 2016
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Journal of Physical Oceanography, Feb 1, 2020
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Journal of Marine Research, Mar 1, 2010
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Journal of Marine Research, Jul 1, 2005
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EGS - AGU - EUG Joint Assembly, Apr 1, 2003
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Journal Of Geophysical Research: Oceans, Mar 1, 2022
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Journal Of Geophysical Research: Oceans, May 1, 2021
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Journal of Physical Oceanography, 2018
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Geophysical Research Letters, Sep 30, 2008
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Journal Of Geophysical Research: Oceans, May 1, 2021
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Journal of Physical Oceanography, May 22, 2012
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Journal of Climate, Sep 15, 2011
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EGS - AGU - EUG Joint Assembly, Apr 1, 2003
ABSTRACT The Labrador Sea is one of the few regions in the world ocean where deep convection occu... more ABSTRACT The Labrador Sea is one of the few regions in the world ocean where deep convection occurs, and is thus of crucial importance for our understanding of the thermohaline circulation. The properties of the deep, convected water masses are not only set by the winter conditions in the area, but also by the degree of restratification over summer. Observations show that three to four months after wintertime convection, a stratified layer of ˜1000 m caps the convected Labrador Sea Water again. This rapid restratification process is yet poorly understood. Previous work suggests that geostrophic eddies spawned by the baroclinic instability of the convected area are responsible. In this study, we focus on the possible role of Irminger Current eddies for the restratification process. These eddies, which are shed on a regular basis from the boundary current near the west coast of Greenland, are known to carry warm, salty waters into the Labrador Sea interior. In an idealized model set-up, we study the formation of the eddies and the underlying instability mechanism. For a realistic 'end-of-winter'-state, in the absence of the Irminger Current, it is shown that the interior convection site generates only weak baroclinic currents, so that restratification by the resulting instabilities is insufficient. By contrast, cases in which Irminger Current eddies are formed along the coast of Greenland are shown to rapidly restratify the convected water mass in the interior of the Labrador Sea. Finally, we demonstrate that Irminger Current eddies can balance a significant portion of the the atmospheric heat loss, and thus play an important role for the water mass transformation in the Labrador Sea.
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EGS General Assembly Conference Abstracts, 2002
ABSTRACT
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Journal of Physical Oceanography, Sep 1, 1999
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Journal Of Geophysical Research: Oceans, Oct 1, 2017
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Dynamics of Atmospheres and Oceans, 1989
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Journal of Physical Oceanography, Feb 14, 2022
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Journal of Physical Oceanography, Jul 1, 2016
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Journal of Physical Oceanography, Feb 1, 2020
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Journal of Marine Research, Mar 1, 2010
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Journal of Marine Research, Jul 1, 2005
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EGS - AGU - EUG Joint Assembly, Apr 1, 2003
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Journal Of Geophysical Research: Oceans, Mar 1, 2022
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Journal Of Geophysical Research: Oceans, May 1, 2021
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Journal of Physical Oceanography, 2018
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Geophysical Research Letters, Sep 30, 2008
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Journal Of Geophysical Research: Oceans, May 1, 2021
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Journal of Physical Oceanography, May 22, 2012
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Journal of Climate, Sep 15, 2011
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EGS - AGU - EUG Joint Assembly, Apr 1, 2003
ABSTRACT The Labrador Sea is one of the few regions in the world ocean where deep convection occu... more ABSTRACT The Labrador Sea is one of the few regions in the world ocean where deep convection occurs, and is thus of crucial importance for our understanding of the thermohaline circulation. The properties of the deep, convected water masses are not only set by the winter conditions in the area, but also by the degree of restratification over summer. Observations show that three to four months after wintertime convection, a stratified layer of ˜1000 m caps the convected Labrador Sea Water again. This rapid restratification process is yet poorly understood. Previous work suggests that geostrophic eddies spawned by the baroclinic instability of the convected area are responsible. In this study, we focus on the possible role of Irminger Current eddies for the restratification process. These eddies, which are shed on a regular basis from the boundary current near the west coast of Greenland, are known to carry warm, salty waters into the Labrador Sea interior. In an idealized model set-up, we study the formation of the eddies and the underlying instability mechanism. For a realistic 'end-of-winter'-state, in the absence of the Irminger Current, it is shown that the interior convection site generates only weak baroclinic currents, so that restratification by the resulting instabilities is insufficient. By contrast, cases in which Irminger Current eddies are formed along the coast of Greenland are shown to rapidly restratify the convected water mass in the interior of the Labrador Sea. Finally, we demonstrate that Irminger Current eddies can balance a significant portion of the the atmospheric heat loss, and thus play an important role for the water mass transformation in the Labrador Sea.
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EGS General Assembly Conference Abstracts, 2002
ABSTRACT
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Journal of Physical Oceanography, Sep 1, 1999
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Journal Of Geophysical Research: Oceans, Oct 1, 2017
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Dynamics of Atmospheres and Oceans, 1989
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