along-estuary spatial variability and driving forces group 3 - question a (christine cass, alejandra...
DESCRIPTION
Methods underway flow- through CTDADCP Equipment:TRANSCRIPT
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Along-Estuary Spatial Variability and Driving Forces
Group 3 - Question A(Christine Cass, Alejandra Sanchez, Marianne Corriveau, Hiromu Ishiyama, Genki
Terauchi, Dubrava Krievskaya, Anna Malek, Sung Yong Kim)
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Study Site - Yaquina BayCruise 2 - Aug 20, 2013 (Ebb Tide) Cruise 3 - Aug 21, 2013 (Flood Tide)
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Methods
underway flow-through
CTD ADCP
Equipment:
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Temperature (ºC)
Ebb Flood
Temperature (ºC)
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Salinity (PSU) Ebb Flood
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Dissolved Oxygen (ml/l)Ebb Flood
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Chlorophyll (mg/m3)Ebb Flood
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Outer Bay Trawl Station: Estuarine Species:
- English Sole- Ling cod- Pacific staghorn sculpin- Buffalo sculpin- Penpoint gunnel
Oceanic Species: - Sand Dab, - Sand Lance
Upper Bay Trawl Station:Estuarine Species:
- English Sole- Ling cod- Pacific staghorn sculpin- Buffalo sculpin- Penpoint gunnel
Oceanic Species:- NONE!
Upper Trophic Level Trends
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Tides & Currents
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Freshwater Influence
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What’s Happening Offshore:Sea Surface
Currents
NANOOS, High Frequency Radarhttp://nvs.nanoos.org/HFRadar
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What’s Happening Offshore?
Upwelling signature ● High chl● Low temp● High salinity● Low DO
(According to Jane)
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What’s Happening Offshore?
Satellite derived Chl-a4 days compositesAug 19-22
47.5 N
41 N
127 W 123 W
ug/L
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Back to the Question:What is the along-estuary spatial variability in
physical, biological and chemical properties and what are the driving forces that create these variations?● Mouth of Bay:
○ Higher S, Chl○ Lower T, DO
● Major forces?○ Tidal○ Offshore processes (wind-driven upwelling)
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Thank you!!!
Do you have any
questions?