mapping the mid-atlantic cold pool with gliderpalooza-2013 w. brown, o. schofield, j. kohut, j....
DESCRIPTION
Mid Atlantic Bight (MAB) COLD POOL Ou & Houghton, 1982NOAA/NMFS 1979 Survey Bottom Temperatures Remnant winter water … i solated by springtime surface warming/freshening => Cold Pool HISTORICAL EVIDENCE.. fed by cold water early summer “coldest patch”TRANSCRIPT
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Mapping the Mid-Atlantic Cold Pool
with GliderPalooza-2013
W. Brown, O. Schofield, J. Kohut, J. Wilkin, & W. Boicourt
Cold Pool Context Cold Pool Measurements – Single GliderCold Pool Mapping – Glider Fleet
MTS/IEEE OCEANS’15 Presentation
21 October 2015
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Mid Atlantic Bight (MAB) COLD POOL
Ou & Houghton, 1982NOAA/NMFS 1979 Survey Bottom Temperatures
Remnant winter water …isolated by springtime surface warming/freshening => Cold Pool
HISTORICAL EVIDENCE
.. fed by cold water early summer
![Page 3: Mapping the Mid-Atlantic Cold Pool with GliderPalooza-2013 W. Brown, O. Schofield, J. Kohut, J. Wilkin, & W. Boicourt Cold Pool Context Cold Pool Measurements](https://reader035.vdocuments.us/reader035/viewer/2022062504/5a4d1b657f8b9ab0599af8db/html5/thumbnails/3.jpg)
Mid Atlantic Bight (MAB) COLD POOL
Ou & Houghton, 1982NOAA/NMFS 1979 Survey Bottom Temperatures
Remnant winter water …isolated by springtime surface warming/freshening => Cold Pool
HISTORICAL EVIDENCE
.. fed by cold water early summer
“coldest patch”
![Page 4: Mapping the Mid-Atlantic Cold Pool with GliderPalooza-2013 W. Brown, O. Schofield, J. Kohut, J. Wilkin, & W. Boicourt Cold Pool Context Cold Pool Measurements](https://reader035.vdocuments.us/reader035/viewer/2022062504/5a4d1b657f8b9ab0599af8db/html5/thumbnails/4.jpg)
Mid Atlantic Bight (MAB) COLD POOL
HISTORICAL EVIDENCE
.. fed by cold water early summer
.. warmed during summer
NOAA/NMFS 1979 Survey Bottom Temperatures Ou & Houghton, 1982
~ 5 km/day
![Page 5: Mapping the Mid-Atlantic Cold Pool with GliderPalooza-2013 W. Brown, O. Schofield, J. Kohut, J. Wilkin, & W. Boicourt Cold Pool Context Cold Pool Measurements](https://reader035.vdocuments.us/reader035/viewer/2022062504/5a4d1b657f8b9ab0599af8db/html5/thumbnails/5.jpg)
Mid Atlantic Bight (MAB) COLD POOL
HISTORICAL EVIDENCE
.. fed by cold water early summer
.. warmed during summer
NOAA/NMFS 1979 Survey Bottom Temperatures Ou & Houghton, 1982
~ 5 km/day
![Page 6: Mapping the Mid-Atlantic Cold Pool with GliderPalooza-2013 W. Brown, O. Schofield, J. Kohut, J. Wilkin, & W. Boicourt Cold Pool Context Cold Pool Measurements](https://reader035.vdocuments.us/reader035/viewer/2022062504/5a4d1b657f8b9ab0599af8db/html5/thumbnails/6.jpg)
COLD POOL SCIENCE QUESTIONS
Relative importance of:
early summer along-shelf advection in Cold Pool “coldest patch” formation ?
top-down & cross-frontal mixing processes in the Cold Pool summer warming ?
different erosion processes in the autumn Cold Pool demise ?
ocean and atmospheric factors causing Cold Pool inter-annual variability ?
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Measuring the MAB Cold Pool with Slocum Ocean Gliders
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Mapping the 2007 Coastal Ocean ….with a ONE-GLIDER “Fleet “
May-Jun 2007
COLD POOL Established Late Spring – cooling !
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Mapping the 2007 Coastal Ocean ….with a ONE-GLIDER “Fleet “
May-Jun 2007
COLD POOL Established Late Spring – cooling !
Tmin = 4.78
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Mapping the 2007 Coastal Ocean ….with a ONE-GLIDER “Fleet “
May-Jun 2007
COLD POOL Established Late Spring – cooling !
Tmin = 5.32 Tmin = 4.78
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Mapping the 2007 Coastal Ocean ….with a ONE-GLIDER “Fleet “
May-Jun 2007
COLD POOL Established Late Spring – cooling !
Tmin = 5.32
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Mapping the 2007 Coastal Ocean ….with a ONE-GLIDER “Fleet “
Jul-Aug 2007
COLD POOLSummer - warming
Tmin = 5.60
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Mapping the 2007 Coastal Ocean ….with a ONE-GLIDER “Fleet “
Sep – Oct 2007
COLD POOL 2007 Autumn - warming - erosion
Tmin = 7.71Tmin = 8.48
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Mapping the 2007 Coastal Ocean ….with a ONE-GLIDER “Fleet “
Sep – Oct 2007
COLD POOL 2007 Autumn - warming - erosion
Tmin = 7.71Tmin = 8.48
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Summary Mapping the 2007 Coastal Ocean ….with a ONE-GLIDER “Fleet “
Glider Transect Tmin … a proxy for Cold Pool temperature “
Apr Jun Aug Oct
12
68
4
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Summary Mapping the 2007 Coastal Ocean ….with a ONE-GLIDER “Fleet “
Tmin vs. TimeCooling Phase
Apr Jun Aug Oct
12
68
4
cooling
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Summary Mapping the 2007 Coastal Ocean ….with a ONE-GLIDER “Fleet “
Apr Jun Aug Oct
12
68
4
warming
Tmin vs. TimeWarming Phase
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Glider Fleet Measurements +
Data Assimilation Models
Mapping the 2013 Coastal Ocean ….with a GLIDER “Fleet “
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Summary
Ocean Glider Fleet Measurements ? …. a cost-effective technology for REAL-TIME Cold Pool observation
Transect Minimum Temperature & Departures? …. an effective proxy for Cold Pool Water Mass
Cold Pool Mapping Requirements? …. flexible time/space water mass definitions
Timely Maps of the Cold Pool ? .… require glider data –assimilation ocean modeling
Forecasting MAB Cold Pool Disposition? …. within reach
![Page 20: Mapping the Mid-Atlantic Cold Pool with GliderPalooza-2013 W. Brown, O. Schofield, J. Kohut, J. Wilkin, & W. Boicourt Cold Pool Context Cold Pool Measurements](https://reader035.vdocuments.us/reader035/viewer/2022062504/5a4d1b657f8b9ab0599af8db/html5/thumbnails/20.jpg)
ESPRESSOBottom Temperature
27 May 2013
Wilkin et al., 2013
Cold Pool Array Design: Model Guidance
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Mapping the 2013 Coastal Ocean ….with a GLIDER “Fleet “
Glider Transect Tmin
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Mapping the Autumn 2013 COLD POOL ….with a glider pair
2nd week September 3rd week
BLUEBLUE
RU-23
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Mapping the Autumn 2013 COLD POOL ….with a glider pair
2nd week September 3rd week
BLUEBLUE
RU-23RU-23
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Mapping the Autumn 2013 COLD POOL ….with a glider pair
2nd week September 3rd week
BLUEBLUE
RU-23RU-23
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with TEMPERATURE DEPARTURES
TD = T – Tmin
TD statistics suggest
TD < 4.3oC (1 σ)
Defining COLD POOL WATER – 2007 Tmin vs Smin Diagram
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with TEMPERATURE DEPARTURES
TD = T – Tmin
TD statistics suggest
TD < 4.3oC (1 σ)
Tmin vs Smin Diagram
Defining COLD POOL WATER – 2007
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Mapping the mid-September 2013 COLD POOL in the SNEB
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Mapping the mid-September 2013 COLD POOL in the SNEB
The inshore edges of the COLD POOL !
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Mapping the mid-September 2013 COLD POOL in the SNEB
The inshore edges of the COLD POOL !
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The offshore edges of the COLD POOL !
Mapping the mid-September 2013 COLD POOL in the SNEB
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Mapping the mid-September 2013 COLD POOL in the SW MAB
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The inshore edges of the COLD POOL !
Mapping the mid-September 2013 COLD POOL in the SW MAB
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The inshore edges of the COLD POOL !
Mapping the mid-September 2013 COLD POOL in the SW MAB
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The offshore edge of the COLD POOL !
Mapping the mid-September 2013 COLD POOL in the SW MAB
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offshore flow of the COLD POOL ?
Mapping the mid-September 2013 COLD POOL in the SW MAB
?
?
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Summary
Ocean Glider Fleet Measurements ? …. a cost-effective technology for REAL-TIME Cold Pool observation
Transect Minimum Temperature & Departures? …. an effective proxy for Cold Pool Water Mass
Cold Pool Mapping Requirements? …. flexible time/space water mass definitions
Timely Maps of the Cold Pool ? .… require glider data –assimilation ocean modeling
Forecasting MAB Cold Pool Disposition? …. within reach
![Page 37: Mapping the Mid-Atlantic Cold Pool with GliderPalooza-2013 W. Brown, O. Schofield, J. Kohut, J. Wilkin, & W. Boicourt Cold Pool Context Cold Pool Measurements](https://reader035.vdocuments.us/reader035/viewer/2022062504/5a4d1b657f8b9ab0599af8db/html5/thumbnails/37.jpg)
Summary
Ocean Glider Fleet Measurements ? …. a cost-effective technology for REAL-TIME Cold Pool observation
Transect Minimum Temperature & Departures? …. an effective proxy for Cold Pool Water Mass
Cold Pool Mapping Requirements? …. flexible time/space water mass definitions
Timely Maps of the Cold Pool ? .… require glider data –assimilation ocean modeling
Forecasting MAB Cold Pool Disposition? …. within reach
![Page 38: Mapping the Mid-Atlantic Cold Pool with GliderPalooza-2013 W. Brown, O. Schofield, J. Kohut, J. Wilkin, & W. Boicourt Cold Pool Context Cold Pool Measurements](https://reader035.vdocuments.us/reader035/viewer/2022062504/5a4d1b657f8b9ab0599af8db/html5/thumbnails/38.jpg)
Summary
Ocean Glider Fleet Measurements ? …. a cost-effective technology for REAL-TIME Cold Pool observation
Transect Minimum Temperature & Departures? …. an effective proxy for Cold Pool Water Mass
Cold Pool Mapping Requirements? …. flexible time/space water mass definitions
Timely Maps of the Cold Pool ? .… require glider data –assimilation ocean modeling
Forecasting MAB Cold Pool Disposition? …. within reach
![Page 39: Mapping the Mid-Atlantic Cold Pool with GliderPalooza-2013 W. Brown, O. Schofield, J. Kohut, J. Wilkin, & W. Boicourt Cold Pool Context Cold Pool Measurements](https://reader035.vdocuments.us/reader035/viewer/2022062504/5a4d1b657f8b9ab0599af8db/html5/thumbnails/39.jpg)
Summary
Ocean Glider Fleet Measurements ? …. a cost-effective technology for REAL-TIME Cold Pool observation
Transect Minimum Temperature & Departures? …. an effective proxy for Cold Pool Water Mass
Cold Pool Mapping Requirements? …. flexible time/space water mass definitions
Timely Maps of the Cold Pool ? .… require glider data –assimilation ocean modeling
Forecasting MAB Cold Pool Disposition? …. within reach
![Page 40: Mapping the Mid-Atlantic Cold Pool with GliderPalooza-2013 W. Brown, O. Schofield, J. Kohut, J. Wilkin, & W. Boicourt Cold Pool Context Cold Pool Measurements](https://reader035.vdocuments.us/reader035/viewer/2022062504/5a4d1b657f8b9ab0599af8db/html5/thumbnails/40.jpg)
Summary
Ocean Glider Fleet Measurements ? …. a cost-effective technology for REAL-TIME Cold Pool observation
Transect Minimum Temperature & Departures? …. an effective proxy for Cold Pool Water Mass
Cold Pool Mapping Requirements? …. flexible time/space water mass definitions
Timely Maps of the Cold Pool ? .… require glider data –assimilation ocean modeling
Forecasting MAB Cold Pool Disposition? …. within reach