NMR water exploration & presentation of water project technology
20100415 herman ridderinkhof_zeeonderzoek_nioz
1. Sea research at NIOZ Royal Netherlands Institute for Sea Research NIOZ is part of the Netherlands Organisation for Scientific Research (NWO) Herman Ridderinkhof
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3. Our History in a Nutshell 1876 Zo o logical Station Main building harbour 1970-present Texel - NIOZ 1890-1970 Den Helder - Zoological Station/NIOZ
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6. Organisation Mar. Chemistry and Geology Ships Marine Technology Board/ directors Marine Ecology Biological Oceanography Physical Oceanography Marine Biogeochemistry Science departments Nat. Foundation for Scientific Research 25 25 Universities, etc 200 National Marine Equipment Pool
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9. Marine equipment: combination of ‘off the shelf + specials (home built) fluoresence-turbidity salinity temperature Currents Living animals to test responses
11. Home built for very specific purposes MOVE: Mobile Vehicle for seafloor observations High pressure sampler for sampling in the deep sea (under pressure)
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15. Why studying cold water corals Threats: deep sea fisheries and climate change (acidification by uptake of CO2)
17. Scientific (and public) attention for ocean-climate interaction is high due to model (and Hollywood) scenarios suggesting that: A strong reduction or reversal of the deep ocean circulation might have dramatic consequences for the climate on the northern hemisphere, especially in western Europe.
18. 1999 2001 2002 2000 Sea surface temperature and altimetry from satellites show year to year variability Transport around Africa important component of global system
19. 1999 2001 2002 2000 Different Dutch studies in 2000-2001 in region around South Africa
25. Since 2003: funding via LOCO (Long-term Ocean Climate Observations) Long term (2003-2010) current meter moorings in the Mozambique Channel; servicing every 1.5-2 years via OFEG shiptime
27. Observed currents at top moorings Estimated volume transport during one year Role of the oceans in climate variability: variability in ocean currents
28. Results from the LOCO period (since November 2003): volume transport
29. Typical picture of current intensities in the deep sea nearby the continental slope; spatial distribution caused by internal waves Mixing in the deep ocean by internal waves
30. Vertical stratification in density support: internal gravity waves 100 m Warm, fresh Cold, salty Internal waves in the deep ocean: what? and why are they important 3-D: ‘ beam’ generation above sloping bottoms pycnocline beamangle ~N, freq. f < freq. < N
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32. model ADCP transect observations Present opportunities for high-frequency observations with enough spatial resolution ( e..g ADCP’s) make observational research on internal waves possible Internal wave studies in Bay of Biscay: observations and modelling
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