MIXED 12/4/021 Learning about Puget Sound: MIXED Kate Edwards UW Applied Physics Lab

MIXED 12/4/022 MIXED Model/measurement integration experiment in estuary dynamics

MIXED 12/4/023 MIXED Who – UW, government scientists What – Fieldwork, modeling When – Spring bloom 2003 Why – Biophysical coupling in south Sound Where – Carr Inlet, south Sound How – Collaboration … you?

MIXED 12/4/024 Motivation Study coupled ecosystem of south Sound –Biology, chemistry, circulation, runoff, weather –Role in spring bloom? Can we model these processes? –Test hypotheses What affects productivity in an area vulnerable to nutrification?

MIXED 12/4/025 Water pollution sources From SPASM web page,

South Sound: problems on the horizon Newton, J.A Observations of El Niño weather conditions reflected in the temperatures and salinities of Puget Sound monitoring stations. In Puget Sound Research '95 Proceedings, 2:

MIXED 12/4/027 Population growth Georgia Basin-Puget Sound Ecosystem Indicators Report, 2002

MIXED 12/4/028 MIXED location: Carr Inlet July 1990 aerial photo mosaic, USGS website Tacoma Narrows Huge Creek Chambers Creek Carr Inlet ORCA

MIXED 12/4/029 MIXED components BioFloat Ship surveys Integrated physical model Aquatic Biochemistry Cycling Model ORCA Multiple funding sources, investigators

MIXED 12/4/0210 BioFloat (Eric D’Asaro, Rick Reynolds) –Temperature, salinity, radiometer –Oxygen, chlorophyll BioFloat figures from proposal, personal communication (D’Asaro), and

MIXED 12/4/0211 BioFloat data examples Growth rate vs available light

MIXED 12/4/0212 Ship surveys (Jan Newton) RV Skookum – 10 stations along BioFloat track (26’ vessel) Conductivity, temperature, depth (CTD) Oxygen, chlorophyll, nutrients (bottles) Acoustic Doppler Current Profiler (ADCP) Dept of Ecology photo

MIXED 12/4/0213 Coupled physical model (Mitsuhiro Kawase, Kate Edwards) Stratification, circulation of Puget Sound Water – Princeton Ocean Model Atmospheric forcing – Mesoscale Meteorological Model 5 River runoff - Hydromet

MIXED 12/4/0214 Aquatic Biogeochemical Cycling (ABC) model Productivity at a single point Model biological processes (grazing, productivity) Jan Newton PRISM seminar,

MIXED 12/4/0215 What do we already know? ORCA profiler (2000-present) Model output WA Department of Ecology stations, PRISM cruises –Monthly stations for several years ADCP mooring and sections

MIXED 12/4/0216 Oceanic Remote Chemical- optical Analyzer (ORCA) Hourly profiles Weather observations Temperature, salinity, oxygen, chlorophyll, light Picture from ORCA website,

MIXED 12/4/ spring bloom starts

MIXED 12/4/0218 Modeling the flow Animation of velocity for January High mixing due to vertical shear? Complicated circulation: what are we seeing at ORCA?

MIXED 12/4/0219 MIXED recap Learn about spring bloom in an area vulnerable to nutrification Biological, chemical, physical observations Modeling Where do you come in?

MIXED 12/4/0220 Sample projects Zooplankton grazing rate in south Sound. Levels before/after bloom? Species composition of Carr Inlet. Do micro or macro algae dominate? Nutrient analysis, chemistry of Carr Inlet Internal tide analysis Dissipation of tidal energy, mixing 3D stratification of the Inlet Internal wave study using satellite data Other ideas!

MIXED 12/4/0221 How to learn more Kate Edwards Al Devol presentation on ORCA today Mitsuhiro Kawase presentation 12/11