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Eops 2011 04_27

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Eyes Over Puget Sound (EOPS) is a news report, and is made available within two days of observation.http://www.ecy.wa.gov/programs/eap/mar_wat/eops/We inform on current surface conditions in Puget Sound and links several scales of observation together. The report contains condition summaries, personal flight observations, aerial photographs, en route ferry data, satellite images, and mooring data collected by the Marine Monitoring Unit at Ecology.Ecology's Marine Monitoring Unit conducts several marine observations with a sampling frequency of minutes to 1 month. We use our routine commute flight between Kenmore Airbase and Olympia to document current marine water conditions by camera and supplement the information with satellite images and en route ferry data between Seattle WA and Victoria BC. This program is an example to optimize monitoring resources. You may subscribe or unsubscribe to the Eyes Over Puget Sound email listserv by going to this link:http://listserv.wa.gov/cgi-bin/wa?A0=ECOLOGY-EYES-OVER-PUGET-SOUND
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Eyes Over Puget Sound Aerial observations on current Puget Sound conditions ftp://www.ecy.wa.gov/eap/Flight_Blog/ Surface Conditions Report April 2011
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Page 1: Eops 2011 04_27

Eyes Over Puget Sound

Aerial observations on current Puget Sound conditions ftp://www.ecy.wa.gov/eap/Flight_Blog/

Surface Conditions Report

April 2011

Page 2: Eops 2011 04_27

Observations between Olympia and Seattle 

ftp://www.ecy.wa.gov/eap/Flight_Blog/

Contents:

In this April edition we highlight:

•Satellite and Victoria Clipper data collected en route between Seattle and Victoria. 

•Observations supported with mooring measurements made in 

Whidbey Basin.

Flight information:

Due to La Niña and low cloud cover, aerial observations have been 

challenging this year. We anticipate that visibility will improve for May.

Page 3: Eops 2011 04_27

Description of Ecology’s Ferry Monitoring Program

http://www.turnerdesigns.com/newsletter/newsletter_0311_full.html#iia

Additional Information: Brandon Sackmann, PhD ([email protected])

April 23

• Clear skies and fresh/nutrient‐rich water from Whidbey Basin has stimulated a 

large algae bloom in central Puget Sound.

• Whidbey Basin water is noticeably more turbid and associated with increased 

colored dissolved organic matter (CDOM) fluorescence.

Victoria Clipper detects strong algal bloom in 

Main Basin of Puget Sound in April 2011 

Page 4: Eops 2011 04_27

Possession Sound (a) bloom (   ) and frontal systems (    ) 

near Mukilteo‐Clinton moving north with the tide (b, c)

b) c)

a)

Page 5: Eops 2011 04_27

April 19           20               21                 22                23                 24                 25             26

Seattle, WA

Victoria, BC April 23

Evolution of April 2011 spring bloom in Puget Sound

Daily snapshots…

Page 6: Eops 2011 04_27

Satellite helps map spatial extent of spring bloom

April 23 (approx. 10AM) April 23

Victoria Clipper – Chlorophyll FluorescenceMERIS Ocean Color – Chlorophyll

9AM

5PM

• Agreement between V. Clipper chlorophyll 

fluorescence and MERIS ocean color data.

• Smaller algae blooms seen in Carr, Case, 

and Budd Inlets.

Page 7: Eops 2011 04_27

7 March 19 March

17 April6 April

• Nutrient‐rich water from 

Whidbey Basin often spreads 

through central sound.

• Fresh water leads to stratified conditions and encourages algae 

blooms.

This year’s early blooms

23 April

MERIS Satellite Ocean Color – Chlorophyll

Page 8: Eops 2011 04_27

23 April

• Chlorophyll, Maximum Chlorophyll 

Index (MCI, sensitive to high algae 

concentrations), CDOM Absorption, 

and Total Suspended Material 

reveal different information

Satellite products used to help assess water quality

Page 9: Eops 2011 04_27

Ecology 

Mooring data

April 13‐27, 2010

Possession Sound

Oxygen levels >10mg/L 

in the surface layer       

(0‐ 16m) in Possession 

Sound support satellite 

images showing a strong 

spring bloom in Whidbey 

Basin and Central Basin.

Warmer and sunnier 

conditions on 4/26 give 

rise to enhanced oxygen 

production and algae 

growth.

http://www.ecy.wa.gov/a

pps/eap/marinewq/moo

rings/MUK01.asp#tab1

Page 10: Eops 2011 04_27

Long – Term 

Monitoring 

Network

Access 

archived data 

at:

http://www.ecy.wa.g

ov/apps/eap/marine

wq/mwdataset.asp

Real – Time

Mooring 

Network 

Access 

archived data

at:

http://www.ecy.wa.

gov/programs/eap/

mar_wat/moorings.

html

Washington State Department 

of Ecology’s long‐term marine 

monitoring stations


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