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  4. Rekonstruktion der glazialen atlantischen Zirkulation mit einem Inversmodell unter geostrophischer Nebenbedingung
 
Zitierlink URN
https://nbn-resolving.de/urn:nbn:de:gbv:46-diss000112049

Rekonstruktion der glazialen atlantischen Zirkulation mit einem Inversmodell unter geostrophischer Nebenbedingung

Veröffentlichungsdatum
2002-12-16
Autoren
Schlotte, Reiner  
Betreuer
Herterich, Klaus  
Gutachter
Lemke, Peter  
Zusammenfassung
The inverse ocean model 2RAIOM is presented. It is used to reconstruct the mean ocean circulation from oceanic data of temperature and salinity. 2RAIOM extends a previous model by adding two terms to the cost function: The so-called dynamic geostrophy enforces the consistency of the circulation with temperatures and salinities; the other term considers the wind stress and turns out to be important for sparse data situations like the geological past. Numerical experiments are performed for the Atlantic Ocean with recent data and with data of the Last Glacial Maximum (LGM).2RAIOM is able to obtain stable reconstructions of the large scale features of the oceanic circulation. However, the derived small scale patterns vary strongly for small changes in the input data. For the LGM we find evidence of a weakening of the North Atlantic Deep Water production.2RAIOM proves to be an adequate tool to interpolate sparse data of the sea surface temperature robustly.
Schlagwörter
oceanography

; 

geostrophy

; 

inverse modelling

; 

last glacial maximum

; 

Atlantic Ocean
Institution
Universität Bremen  
Fachbereich
Fachbereich 05: Geowissenschaften (FB 05)  
Dokumenttyp
Dissertation
Zweitveröffentlichung
Nein
Sprache
Deutsch
Dateien
Lade...
Vorschaubild
Name

00011204.pdf

Size

1.56 MB

Format

Adobe PDF

Checksum

(MD5):bdcad0fddd9a457bbe443b4fba17ed9a

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