![Page 1: Report of Activities from Kiel Claus Böning · Arne Biastoch · Joachim Dengg](https://reader035.vdocuments.net/reader035/viewer/2022070412/56814a22550346895db74c19/html5/thumbnails/1.jpg)
Report of Activities from KielReport of Activities from Kiel
Claus Böning · Arne Biastoch · Joachim DenggClaus Böning · Arne Biastoch · Joachim Dengg
Wonsun Park · Sabine HüttlWonsun Park · Sabine Hüttl
Joke Lübbecke · Markus ScheinertJoke Lübbecke · Markus Scheinert
IFM-GEOMARIFM-GEOMAR
![Page 2: Report of Activities from Kiel Claus Böning · Arne Biastoch · Joachim Dengg](https://reader035.vdocuments.net/reader035/viewer/2022070412/56814a22550346895db74c19/html5/thumbnails/2.jpg)
Model RunsModel Runs
ORCA05 CORE runs
• different restoring parameterizations
• different forcing variability
• different regional variability
ORCA025 CORE runs
• KAB001: 1958-2004 with polar 3D restoring and 2 tracers (CFC-11, SF6)
• KAB002: 1985-2004 with strong polar SSS restoring
Data stored on DODS-Server in Kiel Todo: authentification from outside, LAS
![Page 3: Report of Activities from Kiel Claus Böning · Arne Biastoch · Joachim Dengg](https://reader035.vdocuments.net/reader035/viewer/2022070412/56814a22550346895db74c19/html5/thumbnails/3.jpg)
• Mechanisms of MOC variability in response to key mechanisms/regions
• Observability
MOC and Related Large-scale CirculationMOC and Related Large-scale Circulation
Arne Biastoch, Claus Böning, Joachim Dengg
Subpolar gyre transport variability and its reverberation in the MOC (Böning et al.,
2006)
Atlantic MOC Strength (36°N) in ORCA05
(Biastoch et. al, 2007)
full forcing variability
interannual wind variability onlyheat and freshwater
variability only
![Page 4: Report of Activities from Kiel Claus Böning · Arne Biastoch · Joachim Dengg](https://reader035.vdocuments.net/reader035/viewer/2022070412/56814a22550346895db74c19/html5/thumbnails/4.jpg)
Influence of Freshwater on Subpolar North AtlanticInfluence of Freshwater on Subpolar North Atlantic
Markus Scheinert
• Freshwater balance in arctic and subpolar regions
• “Great Salinity Anomaly” events in CORE runs
Freshwater fluxes in 50-yr CORE runs
Freshwater balance in ORCA05
![Page 5: Report of Activities from Kiel Claus Böning · Arne Biastoch · Joachim Dengg](https://reader035.vdocuments.net/reader035/viewer/2022070412/56814a22550346895db74c19/html5/thumbnails/5.jpg)
Tropical AtlanticTropical Atlantic
Mean pathways subtropics-tropics:
• Sources and role of the zonal current bands
• Connections to upwellingin the eastern tropical Atlantic
Interannual to decadal variability in the topical Atlantic
• Influence and role of the subtropical-tropical cell (STC)
• Connections to MOC variability in the North Atlantic
Sabine Hüttl
![Page 6: Report of Activities from Kiel Claus Böning · Arne Biastoch · Joachim Dengg](https://reader035.vdocuments.net/reader035/viewer/2022070412/56814a22550346895db74c19/html5/thumbnails/6.jpg)
Tropical PacificTropical Pacific
Joke Lübbecke
Subtropical cells (ORCA05, ORCA025)
• Western boundary vs. interior transport
• Impact on SST
• Variability on interannual to decadal time scales
Lagrangian analysis of ORCA05 data focusing on pathways into STCs
(colloboration with K. Döös, Stockholm)
WBC vs. interior in ORCA05
![Page 7: Report of Activities from Kiel Claus Böning · Arne Biastoch · Joachim Dengg](https://reader035.vdocuments.net/reader035/viewer/2022070412/56814a22550346895db74c19/html5/thumbnails/7.jpg)
ECHAM5/NEMO coupled modelECHAM5/NEMO coupled model
• KCM prototype with T31/ORCA2 resolution
• Two 500-yr simulations with difference atmosphere configurations:
• Stable climate
• Different ENSO dynamics
• Reasonable sea ice distribution
• Low MOC
• Cold bias over North Atlantic
Wonsun Park, Noel Keenlyside, Mojib Latif, Rene Redler
![Page 8: Report of Activities from Kiel Claus Böning · Arne Biastoch · Joachim Dengg](https://reader035.vdocuments.net/reader035/viewer/2022070412/56814a22550346895db74c19/html5/thumbnails/8.jpg)
AgulhasAgulhas
Stalled due to
• Manpower Open Postdoc Position!
• Fundamental problems running AGRIF on NEC SX-8
Arne Biastoch
![Page 9: Report of Activities from Kiel Claus Böning · Arne Biastoch · Joachim Dengg](https://reader035.vdocuments.net/reader035/viewer/2022070412/56814a22550346895db74c19/html5/thumbnails/9.jpg)
Australian ActivitiesAustralian Activities
Claus Böning