19982001 2007 2008 Intrusions after strong Nward then Sward wind 48 Intrusions per summer from RIS 19982001 2007 2008 Intrusions after strong Nward then Sward wind Intrusion event estimate cross section is from average conditions ID: 321884
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4-8 Intrusions per summer from RIS
1998-2001, 2007, 2008
Intrusions after strong N-ward, then S-ward windSlide3
4-8 Intrusions per summer from RIS
1998-2001, 2007, 2008
Intrusions after strong N-ward, then S-ward windSlide4
Intrusion event estimate. (cross section is from average conditions,
actual event likely to occupy larger cross section, conservative est.). 1000m x 25m x 0.15 m/s = 3750 m^3/s2 day average duration. 172800 seconds.
Volume of intruded water: 648 million m^3.NB volume is 2 billion m^3. This represents ~ 30% of the volume of the Bay.Point: We currently have no idea what (nitrogen, S, T,
Larvae, plankton, HABs, etc) enters with these intrusions.
Intrusion width
Intrusion depthIntrusion Mean flowSlide5
Nixon and others measured DIN in RIS. High levels.
7
microMSlide6
Time Series
Sample Proposal
Omand
, Kincaid, Ullman, Fulweiler, GrearCurrents
Pumped from 3 depths to in-line sensors: oxygen nitrogen phytoplankton
other key fieldsSlide7
HIGH DIN
DIN to
Euphotic zone?
West Passage
East Passage
Prudence
JamestownSlide8
HIGH DINSlide9