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in selected Southern Ocean Ecosystems Oxygen and Carbon Dioxide Processes Controlling Chris Carrillo
<ul><li>Goals </li></ul><ul><li>Background </li></ul><ul><li>Methods </li></ul><ul><li>Data </li></ul><ul><li>Processes/In...
1. Defend Ph.D. 3. Describe Antarctic ecosystem in terms of processes 2. Show how underway O 2 /fCO 2  data can be used to...
 
 
 
Science Photo by S. Donachie
Scientist Me
Table of Contents CHAPTER 1 Introduction and Rationale CHAPTER 2 Inorganic Carbon System Dynamics in the North Pacific   S...
CHAPTER 1 Introduction and Rationale CHAPTER 2  In Situ and In Vivo Deep Ocean Respiration in the North   Pacific Subtropi...
Johnston J.  1916   The determination of carbonic acid, combined and free, in solution, particularly in natural waters.  J...
Background When I began my professional career, the pursuit of science was in transition from a pursuit by individuals mot...
Background LTER Understand general ecological phenomena that occur over long temporal and broad spatial scales. Palmer-LTE...
Background 1st Biogenic Gas
 
Background The annual cycle in atmospheric oxygen concentration suggest a seasonal offset in the production/respiration ra...
Background Keeling et al. 1993
Computer LabView CO 2  Analyzer Rotating Disk Equilibrator Oxygen &  pH Electrodes Standard  & Reference Gases Solonoid Va...
 
Descriptive LTER Annual Cruise 1997  Data
Data
Data
Gas(Ko) = [X] Processes Temperature
Gas [X] Gas(Ko) = [X] Processes Temperature
Processes Temperature +X% 100% O 2  Saturation Weiss 1970
Processes Temperature Surface Ocean Atmosphere Takahashi et al. 1993
Processes Temperature Processes Controlling Oxygen and Carbon Dioxide       fCO 2 %Sat    Cooling    Heating [O 2 ]%Sa...
Processes Temperature [O 2 ] {Sat} =([O 2 ] (meas) / [ O 2 ] (Sat) )*100
Organic Matter Production/Consumption 106CO 2   + 122H 2 O + 16NO 3  + H 3 PO 4     (CH 2 O) 106 (NH 3 ) 16 (H 3 PO 4 ) +...
 
Processes Biology
Processes Controlling Oxygen and Carbon Dioxide Processes Biology   fCO 2 %Sat    Respiration    Photosynthesis [O 2 ]...
 
Air/Sea Exchange Flux=k*Ko(Water-Air) Processes Air Sea Exchange
Processes Air Sea Exchange
 
Interpretation
 
Interpretation
Underway oxygen and carbon dioxide measurements can be  used to elucidate processes in the Antarctic marine ecosystem. The...
The spatial distribution of these processes suggest the atmospheric oxygen signal may be controlled by relatively small ar...
 
Ron Ogata  Doug Campbell Chris Winn Sue Brown Nicolas Cassar Stuart Donachie Markus Karner AGUNSA Acknowledgments M.J. Pom...
Committee Dave Karl (Chair) Ned Ruby (Outside Member) Dean Smith (Proxy Outside Member) Claudia Benitez-Nelson Ed Laws Fre...
hahana.soest.hawaii.edu/pduke/polarduke.html The cube
 
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Processes controlling carbon dioxide and oxygen in Southern Ocean ecosystems

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  • I’m off to Colorado and will be sking…snowboarding
  • Side not shown to brag about all work done Comment-”you didn’t have to write about everthing you did Thought “”I didn’t!!!!” Criteria to graduate What is critera Grad division Oceanography
  • Transcript of "Processes controlling carbon dioxide and oxygen in Southern Ocean ecosystems"

    1. 1. in selected Southern Ocean Ecosystems Oxygen and Carbon Dioxide Processes Controlling Chris Carrillo
    2. 2. <ul><li>Goals </li></ul><ul><li>Background </li></ul><ul><li>Methods </li></ul><ul><li>Data </li></ul><ul><li>Processes/Interpretations </li></ul><ul><li>Conclusions </li></ul><ul><li>Acknowledgments </li></ul>Introduction
    3. 3. 1. Defend Ph.D. 3. Describe Antarctic ecosystem in terms of processes 2. Show how underway O 2 /fCO 2 data can be used to determine controlling processes Goals for Today Biogenic Gases
    4. 7. Science Photo by S. Donachie
    5. 8. Scientist Me
    6. 9. Table of Contents CHAPTER 1 Introduction and Rationale CHAPTER 2 Inorganic Carbon System Dynamics in the North Pacific Subtropical Gyre: HOT Program CHAPTER 3 Processes Regulating Oxygen and Carbon Dioxide in Surface Waters West of the Antarctic Peninsula CHAPTER 4 Dissolved Inorganic Carbon System Dynamics in the Region West of the Antarctic Peninsula: LTER Program CHAPTER 5 Cross Site Comparison of the Inorganic Carbon Dynamics At the HOT and LTER Research Sites CHAPTER 6 Kinetics of the Inorganic Carbon System in a Continuous Culture CHAPTER 7 Conclusions and Future Directions
    7. 10. CHAPTER 1 Introduction and Rationale CHAPTER 2 In Situ and In Vivo Deep Ocean Respiration in the North Pacific Subtropical Gyre: HALE-ALOHA CHAPTER 3 Measured Air to Sea Gas Exchange Rates of Oxygen and Carbon Dioxide and Their Effect on Estimations of Net Community Production and Respiration CHAPTER 4 Phosphoglycolate Phosphatase Activity in Natual Waters and Chemostats CHAPTER 5 Comparison of Net Community Production from Measurements of fCO 2 and on Deck DIC Incubations CHAPTER 6 The Effect of Increasing Oxygen Concentrations on the Compensation Point of Phytoplankton:Photorespiration CHAPTER 7 Conclusions and Future Directions Alternate Table of Contents www.soest.hawaii.edu/oceanography/degreq.html www.catalog.hawaii.edu
    8. 11. Johnston J. 1916 The determination of carbonic acid, combined and free, in solution, particularly in natural waters. J. Am. Chem. Soc ., 38 , 947-975 Background Trillich 1890 Seyler 1894 Chemical News Seyler 1897 The estimation of carbonic acid in natural waters, Analyst, 22, 312 References CO 2 In seawater
    9. 12. Background When I began my professional career, the pursuit of science was in transition from a pursuit by individuals motivated by personal curiosity to a worldwide enterprise with powerful strategic and materialistic purposes ……… Associated with the new kind of science, however, was a loss of ease to pursue………… Charles Keeling 1998 Annu. Rev. Energy Environ
    10. 13. Background LTER Understand general ecological phenomena that occur over long temporal and broad spatial scales. Palmer-LTER Annual advance and retreat of sea ice affects all levels of the Antarctic marine ecosystem. Microbiology and Carbon Flux Biological production controls the CO 2 and O 2 distributions in the Palmer LTER region.
    11. 14. Background 1st Biogenic Gas
    12. 16. Background The annual cycle in atmospheric oxygen concentration suggest a seasonal offset in the production/respiration ratio of the microbiological community. 2nd Biogenic Gas
    13. 17. Background Keeling et al. 1993
    14. 18. Computer LabView CO 2 Analyzer Rotating Disk Equilibrator Oxygen & pH Electrodes Standard & Reference Gases Solonoid Valves Methods
    15. 20. Descriptive LTER Annual Cruise 1997 Data
    16. 21. Data
    17. 22. Data
    18. 23. Gas(Ko) = [X] Processes Temperature
    19. 24. Gas [X] Gas(Ko) = [X] Processes Temperature
    20. 25. Processes Temperature +X% 100% O 2 Saturation Weiss 1970
    21. 26. Processes Temperature Surface Ocean Atmosphere Takahashi et al. 1993
    22. 27. Processes Temperature Processes Controlling Oxygen and Carbon Dioxide   fCO 2 %Sat  Cooling  Heating [O 2 ]%Sat Processes -1 % / deg C +1 % / deg C fCO 2 %Sat -1% / deg C Cooling +1% / deg C Heating [O 2 ]%Sat Processes
    23. 28. Processes Temperature [O 2 ] {Sat} =([O 2 ] (meas) / [ O 2 ] (Sat) )*100
    24. 29. Organic Matter Production/Consumption 106CO 2 + 122H 2 O + 16NO 3 + H 3 PO 4  (CH 2 O) 106 (NH 3 ) 16 (H 3 PO 4 ) + 138O 2 Processes Biology 106CO 2 + 106H 2 O + 16NH 3 + H 3 PO 4  (CH 2 O) 106 (NH 3 ) 16 (H 3 PO 4 ) + 106O 2 PQ=1.3 PQ=1.0 Measured PQ=0.3 to 1.7
    25. 31. Processes Biology
    26. 32. Processes Controlling Oxygen and Carbon Dioxide Processes Biology   fCO 2 %Sat  Respiration  Photosynthesis [O 2 ]%Sat Processes -1%O 2Sat / 2%fCO 2Sat +1%O 2Sat / -2%fCO 2Sat fCO 2 %Sat -1%O 2Sat / 2%fCO 2Sat Respiration +1%O 2Sat / -2%fCO 2Sat Photosynthesis [O 2 ]%Sat Processes
    27. 34. Air/Sea Exchange Flux=k*Ko(Water-Air) Processes Air Sea Exchange
    28. 35. Processes Air Sea Exchange
    29. 37. Interpretation
    30. 39. Interpretation
    31. 40. Underway oxygen and carbon dioxide measurements can be used to elucidate processes in the Antarctic marine ecosystem. The process of heating and cooling of surface waters account for  5% of the variability observed of oxygen and carbon dioxide. Conclusions
    32. 41. The spatial distribution of these processes suggest the atmospheric oxygen signal may be controlled by relatively small areas of intense phytoplanckton blooms. The process of net organic matter production is a large source of oxygen and sink for CO 2 ; four-fold greater than for heating and cooling. Conclusions
    33. 43. Ron Ogata Doug Campbell Chris Winn Sue Brown Nicolas Cassar Stuart Donachie Markus Karner AGUNSA Acknowledgments M.J. Pombrakas Matt Church Linda Bingler Joris Gieskes ASA Roger Lukas K B Story
    34. 44. Committee Dave Karl (Chair) Ned Ruby (Outside Member) Dean Smith (Proxy Outside Member) Claudia Benitez-Nelson Ed Laws Fred Mackenzie Chris Measures
    35. 45. hahana.soest.hawaii.edu/pduke/polarduke.html The cube
    36. 47. Optimist

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