Great Lakes Information Network

GLIN==> TODAY: Join us for a CILER Seminar or Webinar on "A Tale of Two Coasts: Causes and Consequences of Cross-Shelf Thermal Structure in Lake Michigan"

Sander Robinson Sander.Robinson at noaa.gov

Wed Feb 23 09:09:02 EST 2011

*Feel free to pass along this announcement to interested colleagues.

_Information to register for a /webinar/ of this event follows this 
announcement_.

*

*_Speaker_*:
*
*
*Cary Troy, Ph.D.**
Assistant Professor of Civil Engineering*
*Purdue University*
**
*_Title_*:
*
A Tale of Two Coasts: Causes and Consequences of Cross-shelf Thermal 
Structure in Lake Michigan*
*_
Abstract_:*

*Cross-shelf thermal structure in the Great Lakes plays an important 
role in setting species distributions, offshore transport and dilution, 
and nearshore circulation patterns.Results from two Lake Michigan field 
experiments investigating cross-shelf thermal variability during the 
summer stratified period are presented.The first experiment was carried 
out near Michigan City (IN) in 2009 and involved 7 temperature moorings, 
an Acoustic Doppler Current Profiler (ADCP), and transmissometers.A 
second experiment, carried out near Muskegon (MI), involved a similar 
arrangement and extended the measurements to deep waters 
(110m).Cross-shelf thermal transects from the relatively shallow 
Michigan City transect show that although the Indiana coast is not 
upwelling-aligned with the dominant summer winds, it is nonetheless a 
location of high subsurface thermal variability.An attempt is made to 
quantify this variability in a biologically-relevant manner. Analysis of 
data from this site also suggests that basin-scale circulation patterns 
(themselves caused by the dominant winds) are responsible for the flow 
along this coast, and that basin-scale internal seiches (Poincare waves) 
are not the dominant process responsible for moving the thermocline 
along the lake shelf.Recently-processed data from the Muskegon 2010 
experiment highlights the thermal variability seen along this coast, and 
points to some interesting questions for upcoming work.
*

*Upcoming work involving the use of a Self-Contained Autonomous 
Microstructure Profiler (SCAMP) is also presented in the context of 
motivating questions on the effects of basin-scale internal seiches on 
mixing and dispersion in Lake Michigan.This National Science 
Foundation-funded work involves the correlation of basin-scale internal 
seiche structure with temperature and chlorophyll microstructure, and 
may help to answer questions related to phytoplankton blooms and the 
effects of invasive bivalves on water-column filtering.*

*_Date_**:

Wednesday, February 23 *
**
*_Time_**:**

10:30 AM *

*_Location_**: **

Lake Superior Hall **
NOAA-GLERL **
4840 South State Road **
Ann Arbor, MI 48108 **
(http://www.glerl.noaa.gov/facil/triptik.html) *

*_

Coffee, juice, and breakfast pastries will be served._* *

If you wish to be removed from our seminar notification list, please 
email sanderdr at umich.edu, or sander.robinson at noaa.gov 
<mailto:sander.robinson at noaa.gov>.  However, if you received this 
through GLIN or any other listserve, I cannot remove you.

Sander Robinson
Cooperative Institute for Limnology and Ecosystems Research (CILER)

/Hosted by the University of Michigan's School of Natural Resources and 
Environment, CILER was established in 1989 as a center of excellence 
that serves as a focal point for collaborative research between the 
National Oceanic and Atmospheric Administration (NOAA) and universities 
around the Great Lakes region. Research focuses on improving scientific 
understanding and the prediction of key physical, chemical, and 
biological processes in order to facilitate the restoration, protection, 
and management of natural resources. The Institute also trains new and 
upcoming researchers through postdoctoral and undergraduate and graduate 
student fellowships.



/*
A Tale of Two Coasts: Causes and Consequences of Cross-shelf Thermal 
Structure in Lake Michigan

Join us for a Webinar on February 23

<https://www2.gotomeeting.com/register/369470026>

*Space is limited.*
Reserve your Webinar seat now at:
https://www2.gotomeeting.com/register/369470026

Cross-shelf thermal structure in the Great Lakes plays an important role 
in setting species distributions, offshore transport and dilution, and 
nearshore circulation patterns.  Results from two Lake Michigan field 
experiments investigating cross-shelf thermal variability during the 
summer stratified period are presented.  The first experiment was 
carried out near Michigan City (IN) in 2009 and involved 7 temperature 
moorings, an Acoustic Doppler Current Profiler (ADCP), and 
transmissometers.  A second experiment, carried out near Muskegon (MI), 
involved a similar arrangement and extended the measurements to deep 
waters (110m).  Cross-shelf thermal transects from the relatively 
shallow Michigan City transect show that although the Indiana coast is 
not upwelling-aligned with the dominant summer winds, it is nonetheless 
a location of high subsurface thermal variability.  An attempt is made 
to quantify this variability in a biologically-relevant manner. Analysis 
of data from this site also suggests that basin-scale circulation 
patterns (themselves caused by the dominant winds) are responsible for 
the flow along this coast, and that basin-scale internal seiches 
(Poincare waves) are not the dominant process responsible for moving the 
thermocline along the lake shelf.  Recently-processed data from the 
Muskegon 2010 experiment highlights the thermal variability seen along 
this coast, and points to some interesting questions for upcoming 
work.  Upcoming work involving the use of a Self-Contained Autonomous 
Microstructure Profiler (SCAMP) is also presented in the context of 
motivating questions on the effects of basin-scale internal seiches on 
mixing and dispersion in Lake Michigan.  This National Science 
Foundation-funded work involves the correlation of basin-scale internal 
seiche structure with temperature and chlorophyll microstructure, and 
may help to answer questions related to phytoplankton blooms and the 
effects of invasive bivalves on water-column filtering.

*Title:* 		A Tale of Two Coasts: Causes and Consequences of Cross-shelf 
Thermal Structure in Lake Michigan

*Date:* 	
	Wednesday, February 23, 2011

*Time:* 	
	10:30 AM - 11:30 AM EST


After registering you will receive a confirmation email containing 
information about joining the Webinar.

*System Requirements*
PC-based attendees
Required: Windows® 7, Vista, XP or 2003 Server

Macintosh®-based attendees
Required: Mac OS® X 10.4.11 (Tiger®) or newer

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