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EcoSystem and Group 1

EcoSystem and Group 1. What role does the coastal ocean play in estuarine dynamics? What environmental factors are contributing to DO changes? Are the observed changes at the two stations being driven by biological or physical process?. DATA.

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EcoSystem and Group 1

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  1. EcoSystem and Group 1 • What role does the coastal ocean play in estuarine dynamics? • What environmental factors are contributing to DO changes? • Are the observed changes at the two stations being driven by biological or physical process?

  2. DATA • YB1, YB2 (surface, every 15 minutes ):temperature, salinity, sigma-t, dissolved oxygen, in situ fluorescence • SR15 (9 m, inner shelf, hourly): temperature • wind (offshore, hourly): wind stress

  3. Dissolved Oxygen at YB1 and YB2 YB1 (coast)YB2 (river) time

  4. Power spectrum of Dissolved Oxygen 1.0/day 2.0/day 2.9/day 3.8/day 4.7/day YB1 (coast) YB2 (river)

  5. WIND AND OXYGEN wind YB1

  6. WIND AND OXYGEN wind stress 1 day lag wind YB1

  7. Sea Surface TemperatureAug 19-20, 2013

  8. Salinity (blue) and Dissolved Oxygen (green) YB1 YB2

  9. Dissolved Oxygen vs. Salinity oxygen YB2 YB1 salinity

  10. BIOLOGICAL PROCESSES • Air-Sea Flux • Biological Oxygen Change (BDO) • Net Ecosystem Metabolism (NEM) • Respiration • Net Ecosystem Production (NEP) • Gross Primary Production (GPP)

  11. AIR-SEA FLUX (+): ocean to air (+): air to ocean YB1 YB2

  12. Biological Oxygen Change YB1 YB2

  13. BDO and DO at YB1 BDO DO

  14. BDO and DO at YB2 BDO DO

  15. Group 1 SUMMARY • What role does the coastal ocean play in estuarine dynamics? • What environmental factors are contributing to DO changes? • Are the observed changes at the two stations being driven by biological or physical process?

  16. ACKNOWLEDGEMENT • ALL INSTRUCTORS • ALL TAS • PICES • HANNA NA, JIAHUA CHENG, CHO-RONG MOON, YOHEI TAKANO, ZHANKUN WANG, HENRY POTTER, IRENE ALABIA, AND DI WAN.

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