Using Data to Explore Ocean Processes Koshland Science Museum of the National Academy of Sciences.

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Presentation transcript:

Using Data to Explore Ocean Processes Koshland Science Museum of the National Academy of Sciences

CTD + Niskin Bottles Conductivity Temperature Depth

75m 125m 10m

Depth (m) Fluorescence Temperature (ITS-90) Oxygen uMol/kg Salinity (PSU)

Phytoplankton form the base of the marine food web!

Photosynthesis Respiration and Decomposition CO 2 Carbon dioxide + H 2 O Water + O 2 Oxygen + nutrients  e.g., nitrate, phosphate Organic carbon + O 2 Oxygen Organic carbon nutrients  e.g., nitrate, phosphate H 2 O + Water CO 2 + Carbon dioxide

Nitrogenous base Marine Nitrogen Cycle

Photosynthesis Grazing Inorganic Nutrients (NO 3, PO 4 ) Dissolved Organic Matter e.g., ATP, lipids, sugars, proteins Respiration or Death

Long-term Oceanographic Research Hawaii Ocean Time-series (HOT) Started in October 1988 Scientists measure a wide range of variables in the Pacific Ocean

hahana.soest.hawaii.edu/hot/hot-dogs/interface.html

Horizontal Profiles  Time-series  Bottle Time (year)

Let’s change the grouping Horizontal Profiles  Time-series  Bottle Highest oxygen during the spring Oxygen peak in 1991

Summary Scientists use technology, like CTDs, to study the ocean. Phytoplankton play important roles in food production and chemical cycling. Time-series are valuable for understanding large- scale ocean processes.