Glider observations of the Dotson Ice Shelf outflow
The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Miles, Travis [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2016transfer abstract |
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| Schlagwörter: |
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| Umfang: |
14 |
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| Übergeordnetes Werk: |
Enthalten in: THE RISK OF OBSTRUCTIVE SLEEP APNEA IN A HEALTHY, MIDDLE-AGED NORTH AMERICAN POPULATION: INSIGHTS FROM THE PRIMARY CARE AUDIT OF GLOBAL RISK MANAGEMENT (PARADIGM) STUDY - Kaushal, A. ELSEVIER, 2015, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:123 ; year:2016 ; pages:16-29 ; extent:14 |
| Links: |
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| DOI / URN: |
10.1016/j.dsr2.2015.08.008 |
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| Katalog-ID: |
ELV040124355 |
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| 520 | |a The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. | ||
| 520 | |a The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. | ||
| 650 | 7 | |a Amundsen Sea |2 Elsevier | |
| 650 | 7 | |a Circumpolar Deep Water |2 Elsevier | |
| 650 | 7 | |a Gliders |2 Elsevier | |
| 650 | 7 | |a Dotson Ice Shelf |2 Elsevier | |
| 700 | 1 | |a Lee, Sang Hoon |4 oth | |
| 700 | 1 | |a Wåhlin, Anna |4 oth | |
| 700 | 1 | |a Ha, Ho Kyung |4 oth | |
| 700 | 1 | |a Kim, Tae Wan |4 oth | |
| 700 | 1 | |a Assmann, Karen M. |4 oth | |
| 700 | 1 | |a Schofield, Oscar |4 oth | |
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10.1016/j.dsr2.2015.08.008 doi GBVA2016016000018.pica (DE-627)ELV040124355 (ELSEVIER)S0967-0645(15)00301-X DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 VZ 600 540 VZ Miles, Travis verfasserin aut Glider observations of the Dotson Ice Shelf outflow 2016transfer abstract 14 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. Amundsen Sea Elsevier Circumpolar Deep Water Elsevier Gliders Elsevier Dotson Ice Shelf Elsevier Lee, Sang Hoon oth Wåhlin, Anna oth Ha, Ho Kyung oth Kim, Tae Wan oth Assmann, Karen M. oth Schofield, Oscar oth Enthalten in Elsevier Science Kaushal, A. ELSEVIER THE RISK OF OBSTRUCTIVE SLEEP APNEA IN A HEALTHY, MIDDLE-AGED NORTH AMERICAN POPULATION: INSIGHTS FROM THE PRIMARY CARE AUDIT OF GLOBAL RISK MANAGEMENT (PARADIGM) STUDY 2015 Amsterdam [u.a.] (DE-627)ELV023730552 volume:123 year:2016 pages:16-29 extent:14 https://doi.org/10.1016/j.dsr2.2015.08.008 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 123 2016 16-29 14 045F 550 |
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10.1016/j.dsr2.2015.08.008 doi GBVA2016016000018.pica (DE-627)ELV040124355 (ELSEVIER)S0967-0645(15)00301-X DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 VZ 600 540 VZ Miles, Travis verfasserin aut Glider observations of the Dotson Ice Shelf outflow 2016transfer abstract 14 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. Amundsen Sea Elsevier Circumpolar Deep Water Elsevier Gliders Elsevier Dotson Ice Shelf Elsevier Lee, Sang Hoon oth Wåhlin, Anna oth Ha, Ho Kyung oth Kim, Tae Wan oth Assmann, Karen M. oth Schofield, Oscar oth Enthalten in Elsevier Science Kaushal, A. ELSEVIER THE RISK OF OBSTRUCTIVE SLEEP APNEA IN A HEALTHY, MIDDLE-AGED NORTH AMERICAN POPULATION: INSIGHTS FROM THE PRIMARY CARE AUDIT OF GLOBAL RISK MANAGEMENT (PARADIGM) STUDY 2015 Amsterdam [u.a.] (DE-627)ELV023730552 volume:123 year:2016 pages:16-29 extent:14 https://doi.org/10.1016/j.dsr2.2015.08.008 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 123 2016 16-29 14 045F 550 |
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10.1016/j.dsr2.2015.08.008 doi GBVA2016016000018.pica (DE-627)ELV040124355 (ELSEVIER)S0967-0645(15)00301-X DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 VZ 600 540 VZ Miles, Travis verfasserin aut Glider observations of the Dotson Ice Shelf outflow 2016transfer abstract 14 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. Amundsen Sea Elsevier Circumpolar Deep Water Elsevier Gliders Elsevier Dotson Ice Shelf Elsevier Lee, Sang Hoon oth Wåhlin, Anna oth Ha, Ho Kyung oth Kim, Tae Wan oth Assmann, Karen M. oth Schofield, Oscar oth Enthalten in Elsevier Science Kaushal, A. ELSEVIER THE RISK OF OBSTRUCTIVE SLEEP APNEA IN A HEALTHY, MIDDLE-AGED NORTH AMERICAN POPULATION: INSIGHTS FROM THE PRIMARY CARE AUDIT OF GLOBAL RISK MANAGEMENT (PARADIGM) STUDY 2015 Amsterdam [u.a.] (DE-627)ELV023730552 volume:123 year:2016 pages:16-29 extent:14 https://doi.org/10.1016/j.dsr2.2015.08.008 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 123 2016 16-29 14 045F 550 |
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10.1016/j.dsr2.2015.08.008 doi GBVA2016016000018.pica (DE-627)ELV040124355 (ELSEVIER)S0967-0645(15)00301-X DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 VZ 600 540 VZ Miles, Travis verfasserin aut Glider observations of the Dotson Ice Shelf outflow 2016transfer abstract 14 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. Amundsen Sea Elsevier Circumpolar Deep Water Elsevier Gliders Elsevier Dotson Ice Shelf Elsevier Lee, Sang Hoon oth Wåhlin, Anna oth Ha, Ho Kyung oth Kim, Tae Wan oth Assmann, Karen M. oth Schofield, Oscar oth Enthalten in Elsevier Science Kaushal, A. ELSEVIER THE RISK OF OBSTRUCTIVE SLEEP APNEA IN A HEALTHY, MIDDLE-AGED NORTH AMERICAN POPULATION: INSIGHTS FROM THE PRIMARY CARE AUDIT OF GLOBAL RISK MANAGEMENT (PARADIGM) STUDY 2015 Amsterdam [u.a.] (DE-627)ELV023730552 volume:123 year:2016 pages:16-29 extent:14 https://doi.org/10.1016/j.dsr2.2015.08.008 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 123 2016 16-29 14 045F 550 |
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10.1016/j.dsr2.2015.08.008 doi GBVA2016016000018.pica (DE-627)ELV040124355 (ELSEVIER)S0967-0645(15)00301-X DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 VZ 600 540 VZ Miles, Travis verfasserin aut Glider observations of the Dotson Ice Shelf outflow 2016transfer abstract 14 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. Amundsen Sea Elsevier Circumpolar Deep Water Elsevier Gliders Elsevier Dotson Ice Shelf Elsevier Lee, Sang Hoon oth Wåhlin, Anna oth Ha, Ho Kyung oth Kim, Tae Wan oth Assmann, Karen M. oth Schofield, Oscar oth Enthalten in Elsevier Science Kaushal, A. ELSEVIER THE RISK OF OBSTRUCTIVE SLEEP APNEA IN A HEALTHY, MIDDLE-AGED NORTH AMERICAN POPULATION: INSIGHTS FROM THE PRIMARY CARE AUDIT OF GLOBAL RISK MANAGEMENT (PARADIGM) STUDY 2015 Amsterdam [u.a.] (DE-627)ELV023730552 volume:123 year:2016 pages:16-29 extent:14 https://doi.org/10.1016/j.dsr2.2015.08.008 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA AR 123 2016 16-29 14 045F 550 |
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Enthalten in THE RISK OF OBSTRUCTIVE SLEEP APNEA IN A HEALTHY, MIDDLE-AGED NORTH AMERICAN POPULATION: INSIGHTS FROM THE PRIMARY CARE AUDIT OF GLOBAL RISK MANAGEMENT (PARADIGM) STUDY Amsterdam [u.a.] volume:123 year:2016 pages:16-29 extent:14 |
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Enthalten in THE RISK OF OBSTRUCTIVE SLEEP APNEA IN A HEALTHY, MIDDLE-AGED NORTH AMERICAN POPULATION: INSIGHTS FROM THE PRIMARY CARE AUDIT OF GLOBAL RISK MANAGEMENT (PARADIGM) STUDY Amsterdam [u.a.] volume:123 year:2016 pages:16-29 extent:14 |
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THE RISK OF OBSTRUCTIVE SLEEP APNEA IN A HEALTHY, MIDDLE-AGED NORTH AMERICAN POPULATION: INSIGHTS FROM THE PRIMARY CARE AUDIT OF GLOBAL RISK MANAGEMENT (PARADIGM) STUDY |
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Miles, Travis @@aut@@ Lee, Sang Hoon @@oth@@ Wåhlin, Anna @@oth@@ Ha, Ho Kyung @@oth@@ Kim, Tae Wan @@oth@@ Assmann, Karen M. @@oth@@ Schofield, Oscar @@oth@@ |
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THE RISK OF OBSTRUCTIVE SLEEP APNEA IN A HEALTHY, MIDDLE-AGED NORTH AMERICAN POPULATION: INSIGHTS FROM THE PRIMARY CARE AUDIT OF GLOBAL RISK MANAGEMENT (PARADIGM) STUDY |
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THE RISK OF OBSTRUCTIVE SLEEP APNEA IN A HEALTHY, MIDDLE-AGED NORTH AMERICAN POPULATION: INSIGHTS FROM THE PRIMARY CARE AUDIT OF GLOBAL RISK MANAGEMENT (PARADIGM) STUDY |
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glider observations of the dotson ice shelf outflow |
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Glider observations of the Dotson Ice Shelf outflow |
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The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. |
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The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. |
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The Amundsen Sea is one of the most productive polynyas in the Antarctic per unit area and is undergoing rapid changes including a reduction in sea ice duration, thinning ice sheets, retreat of glaciers and the potential collapse of the Thwaites Glacier in Pine Island Bay. A growing body of research has indicated that these changes are altering the water mass properties and associated biogeochemistry within the polynya. Unfortunately difficulties in accessing the remote location have greatly limited the amount of in situ data that has been collected. In this study data from a Teledyne-Webb Slocum glider was used to supplement ship-based sampling along the Dotson Ice Shelf (DIS). This autonomous underwater vehicle revealed a detailed view of a meltwater laden outflow from below the western flank of the DIS. Circumpolar Deep Water intruding onto the shelf drives glacial melt and the supply of macronutrients that, along with ample light, supports the large phytoplankton blooms in the Amundsen Sea Polynya. Less well understood is the source of micronutrients, such as iron, necessary to support this bloom to the central polynya where chlorophyll concentrations are highest. This outflow region showed decreasing optical backscatter with proximity to the bed indicating that particulate matter was sourced from the overlying glacier rather than resuspended sediment. This result suggests that particulate iron, and potentially phytoplankton primary productivity, is intrinsically linked to the magnitude and duration of sub-glacial melt from Circumpolar Deep Water intrusions onto the shelf. |
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