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Reservoir volumes of water

Reservoir volumes of water. Ice volume & equivalent water depth. The geoid – mean “sea level”. Map prior to satellite records. Modern geoid (SL) – areas of high variability. SL variability greatest near major currents. Gulf Stream and Loop Current. Oceanographic Satellites.

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Reservoir volumes of water

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  1. Reservoir volumes of water

  2. Ice volume & equivalent water depth

  3. The geoid – mean “sea level” Map prior to satellite records

  4. Modern geoid (SL) – areas of high variability

  5. SL variability greatest near major currents Gulf Stream and Loop Current

  6. Oceanographic Satellites 1978 SEASAT sea-surface temperature and chlorophyll (productivity) 1992 TOPEX & JASON

  7. Geometry of satellite altimetry Defining the geoid

  8. TOPEX

  9. TOPEX Dynamic Topography

  10. TOPEX

  11. TOPEX Wave Height

  12. Mean dynamic topography, Atlantic

  13. Gulf Stream rings

  14. Dynamic topography Satellite tracks across the Gulf Stream

  15. Ice and isostasy The basic idea has been around for a while

  16. RSL over last 5 ka variable response globally

  17. Submerging coasts > 2 mm / yr

  18. Local effectsshoreline configuration Greater hydro-isostatic depression for promontory

  19. Local effects on apparent sea level Increased tidal range within an embayment

  20. Choose your RSL curve North America Away from the big ice

  21. North America northern areas

  22. Modeling the forebulge Local to regional effect

  23. Retreat of the forebulge

  24. RSL Atlantic Coast of Canada

  25. RSL Europe

  26. RSL East Asia

  27. Global pattern of RSL >50 yrs Tide-gauge records

  28. Isostatic rebound

  29. Regional RSL curves Great Britain

  30. Global tectonic effects on RSL 1 Ma to 100 Ma

  31. Timing of late Quaternary highstands • Chappell & Shackleton 1986 B. Shackleton 1987 • C. Bloom & Yonekura 1990

  32. Huon Peninsula, Papua New Guinea Shoreline terraces preserved by uplift

  33. Earthquakes on the Huon Peninsula

  34. Huon Peninsula text

  35. Cutting coastal terraces Several options for the same terrace setting

  36. Stage 5e on the Huon Peninsula The “prominent terrace”

  37. Late Quaternary highstand reference points Barbados Huon Peninsula

  38. Huon Peninsula record compared with the marine isotope record Chronology – close enough?

  39. The Fairbanks curve U-series on corals from Barbados

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