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PO1/IFM-GEOMAR Tropical Atlantic Projects 2 cruises (Aug. 2004 / Spring 2006) 2 funded projects 1 proposed project
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PO1/IFM-GEOMAR Tropical Atlantic Projects

Feb 22, 2016

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PO1/IFM-GEOMAR Tropical Atlantic Projects. 2 cruises (Aug. 2004 / Spring 2006) 2 funded projects 1 proposed project. *. Moorings Apex floats RAFOS floats. Meteor cruise M62/2 Aug. 2004 recovery of CLIVAR array at 11°S - PowerPoint PPT Presentation
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Page 1: PO1/IFM-GEOMAR  Tropical Atlantic Projects

PO1/IFM-GEOMAR Tropical Atlantic Projects

• 2 cruises (Aug. 2004 / Spring 2006)• 2 funded projects• 1 proposed project

Page 2: PO1/IFM-GEOMAR  Tropical Atlantic Projects

Meteor cruise M62/2 Aug. 2004• recovery of CLIVAR array at 11°S• deployment of current meter mooring at 35°W at the equator (upper 1500 m)• deployment of two sound sources• release of 15 APEX and 42 isopycnic RAFOS floats

Moorings Apex floats RAFOS floats

*

Page 3: PO1/IFM-GEOMAR  Tropical Atlantic Projects

Meteor cruise Spring 2006• recovery of current meter mooring at 35°W on the equator • recovery of sound source moorings• microstructure measurements• deployment of APEX floats

Page 4: PO1/IFM-GEOMAR  Tropical Atlantic Projects

ARGO – Tropical Atlantic (Fischer/Schott)

• 15 APEX floats will be deployed during Meteor cruise M62/2 (Aug. 2004)• 15 APEX floats during 2005/2006

Page 5: PO1/IFM-GEOMAR  Tropical Atlantic Projects

STC study using isopycnic RAFOS floats (Schott/Brandt)

Climatological depth of isopycnal =25.7 kg/m³

42 RAFOS-floats will be deployed during M62/2 (Aug. 2004) at two isopycnic surfaces: =25.7 kg/m³ and =26.8 kg/m³

RAFOS Deployment

[m]

Page 6: PO1/IFM-GEOMAR  Tropical Atlantic Projects

Proposed Research Program

Mooring array at 23°W (EUC transport and hydrography)Glider-section at 23°W (Guinea Dome and equatorial hydr.)Repeat ship sections including microstructure measurements

Page 7: PO1/IFM-GEOMAR  Tropical Atlantic Projects

Vermessung intrasaisonaler bis interannualer Schwankungen von Stärke und Wassermasseneigenschaften des ostwärtigen Warmwassertransports zur Versorgung der Auftriebsgebiete

im östlichen tropischen Atlantik

Verbessertes Verständnis der Wärmebilanz der Deckschicht im zentralen äquatorialen Atlantik (verbesserte

Parametrisierungen zur Ableitung der verschiedenen Terme aus Satelliten- und Drifterdaten)

Analyse von gekoppelten und ozeanischen Modellen hinsichtlich

• der Rolle von Oberflächentemperaturschwankungen für Niederschlagsanomalien im Bereich des tropischen Atlantiks

• der Rolle von STC und MOC Schwankungen für Temperaturanomalien im Ostatlantik (Stärke des EUC und

Aufteilung zwischen süd- und nordhemisphärischem Wasser)