1 / 19

Séréna ILLIG and Claire Perigaud

Use of Ocean Surface Topography (OST) data to study the role the the Indonesian ThroughFlow (ITF) in the Indian Ocean Climate. Séréna ILLIG and Claire Perigaud. Jet Propulsion Laboratory. sig@pacific.jpl.nasa.gov. The Indian Ocean Specificities.

fayre
Download Presentation

Séréna ILLIG and Claire Perigaud

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Use of Ocean Surface Topography (OST) data to study the role the the Indonesian ThroughFlow (ITF) in the Indian Ocean Climate Séréna ILLIG and Claire Perigaud Jet Propulsion Laboratory sig@pacific.jpl.nasa.gov

  2. The Indian Ocean Specificities Mean (1999-2004) SST from Reynolds data Mean (1999-2004) Wind stress from QUIKSCAT data

  3. Plan Our Intermediate Ocean Model Use of OST data toestimate the Indonesian ThroughFlow (ITF)transport Roleof the interannual IFT transport on the Indian ocean climate: preliminary results Perspectives

  4. H1 w1 T1,S1,v1 H2 w2 T2,S2,v2 H3 T3,S3,v3 w3 T4,S4,v4 H4 Td,Sd Our Intermediate Coupled Model Non linear 4 ½-layer thermodynamical ocean model with salinity included Han et al. (2001): Direct extension of the 2 ½ layer model by McCreary et al. (1993) Forcing: Wind Stress from FSU Precipitations from GPCP

  5. Use of OST data to validate our IOM Correlation between SL Interannual Anomalies of T/P data and our IOM (1993-1999) RMS difference between SL Interannual Anomalies of T/P data and our IOM (1993-1999) Interannual Variability of T/P data (1993-1999) Interannual Variability our IOM (1993-1999)

  6. The Indonesian ThroughFlow (ITF) Transport We use the Ocean Surfiace Topography data from TOPEX/POSEIDON to estimate the ITF Transport from 1992-1998 We use the dynamic height from XBT data to estimate the ITF Transport from 1980-1992

  7. Mean Sea Level reference for 1980-1996 from in situ data Variability of Sea Level over 1992-1996 from TOPEX/POSEIDON data The Indonesian ThroughFlow (ITF) Transport Step1: The variability of the XBT Dynamic height is corrected to fit OST data from T/P Step2: The climatological reference of the OST data are corrected to fit the XBT from 1980 to 1996

  8. The Indonesian ThroughFlow (ITF) Transport Step1: The variability of the XBT Dynamic height is corrected to fit OST data from T/P Step2: The climatological reference of the OST data are corrected to fit the XBT from 1980 to 1996 Step3: The ITF transport is estimated by geostrophy, between Java and Australia, on a depth of the order of 400m

  9. The Indonesian ThroughFlow (ITF) Transport

  10. TRACER in the Indonesian ThrouFlow (ITF)

  11. TRACER in the Indonesian ThrouFlow (ITF)

  12. TRACER in the Indonesian ThrouFlow (ITF)

  13. Interannual Variability our IOM (1993-1999): with interannual ITF Role of the ITF on the Indian Ocean Climate Interannual Variability our IOM (1993-1999): no ITF

  14. Role of the ITF on the Indian Ocean Climate Role the interannual variability of the ITF… year 1994 Difference of mean 1994 Sea Level (cm) Difference of mean 1994 Layer 1 Heat Content (°C*m)

  15. Role of the ITF on the Indian Ocean Climate Role the interannual variability of the ITF… year 1994 Precipitation Anomalies in 1994 Precipitation anomalies in 1997

  16. Perspectives Heat Fluxes OASIS SST

  17. Perspectives Heat Fluxes OASIS SST

  18. Use of Ocean Surface Topography (OST) data to study the role the the Indonesian ThroughFlow (ITF) in the Indian Ocean Climate Séréna ILLIG and Claire Pergaud Jet Propulsion Laboratory sig@pacific.jpl.nasa.gov

  19. Interannual Long Equatorial Waves in the Tropical Atlantic (1981-2000) S. Illig, B. Dewitte, N. Ayoub, Y DuPenhoat, G. Reverdin, P. DeMey, F. Bonjean , and G.S.E. Lagerloef sig@pacific.jpl.nasa.gov

More Related