1 / 29

Transport Measures

Transport Measures. Meridional overturning, MOC:. MOC on density surfaces:. Heat transport (rel. 0 o C):. Freshwater transport (rel. 35 psu):. Ganachaud&Wunsch. K-7. Keith (1995) Trenberth & Solomon (1994) Macdonald & Wunsch (1996) Garnier et al (2001) De las Heras & Schlitzer(1999)

lynley
Download Presentation

Transport Measures

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. Transport Measures Meridional overturning, MOC: MOC on density surfaces: Heat transport (rel. 0oC): Freshwater transport (rel. 35 psu):

  2. Ganachaud&Wunsch K-7 • Keith (1995) • Trenberth & Solomon (1994) • Macdonald & Wunsch (1996) • Garnier et al (2001) • De las Heras & Schlitzer(1999) • Bryden et al (1991) • Ganachaud & Wunsch • (2000) Heat transports Heat transports Mass transports heat transports are indicated by the arrows and red numbers (positive northward/eastward). The white box at the tail end of each arrow is the one-standard-deviation uncertainty. Between sections, ocean-atmosphere heat transfers are indicated by the zonal length of the coloured boxes (blue for ocean cooling; red for ocean heating), with the length of the white box inside indicating the uncertainty.

  3. Global Heattransport K-7 Ganachaud&Wunsch(1996)

  4. North Atlantic Heattr. ENSEBLES Ganachaud&Wunsch(1996)

  5. Indo-Pac. Heattransport K-7 Ganachaud&Wunsch(1996)

  6. Wijffels et al (2001)/Macdonald&Wunsch(1996) Wijffels et al (2001) Macdonald&Wunsch(1996)

  7. Global Freshwater transp. K-7 Wijffels et. al. (2001)

  8. Atlantic and IndoPac freshwater transports K-7 Indo-Pacific Atlantic

  9. Heat transport 25oN K-7

  10. Heat transport 48oN K-7

  11. Heat/FW transport ENSEBLES

  12. Bryden et al (2005) K-7 Transport per unit depth (in m2 s-1) represents the zonally averaged northward geostrophic velocity times the zonal distance across the section at each depth. a, Top-to-bottom profile showing the general similarity in vertical structure of the flow for each section with southward flow in the upper waters, a northward flow of intermediate waters, a southward flow of deep waters at 1,200-5,000 m depth, and a northward flow in the bottom waters. b, Expanded profile of the thermocline flow showing the stronger southward flow in the 1998 and 2004 sections. c, Expanded profile below 1,000 m depth showing the two cores of southward flowing upper NADW centred at about 2,000 m depth and lower NADW centred at 4,000 m depth. u-NADW l-NADW AABW

  13. Max. MOC 25oN K-7 Bryden et al. (2005) ECMWF

  14. Max. MOC 48oN K-7

  15. ECCO-50y Global MOC ECCO-SIO ECCO-GODAE ECCO-JPL GFDL INGV SODA

  16. ECCO-50y Atlantic MOC ECCO-SIO ECCO-GODAE ECCO-JPL GFDL INGV SODA

  17. ECCO-50y IndoPac MOC ECCO-SIO ECCO-GODAE ECCO-JPL GFDL INGV SODA

  18. MOC ENSEBLES

  19. ---------------- AWI

  20. Willebrand et al (2000) Level ISOPYCNIC Level ISOPYCNIC AtlanticMOC vs. density AtlanticMOC vs. depth SIGMA SIGMA 1styr Level SIGMA Roemmich&Wunsch (1985) ISOPYCNIC 10th yr

  21. ECCO-JPL ECCO-JPL

  22. ECCO-SIO ECCO-SIO

  23. ECCO-50y ECCO-50y

  24. ECCO-GODAE ECCO-GODAE

  25. ECMWF ECMWF

  26. GFDL SODA

  27. INGV INGV

  28. SODA SODA

  29. ECCO-SIO/50y + Ref. ECCO-SIO Bryden et al. (2005)

More Related