<div dir="ltr"><div class="gmail_default" style="font-size:small">FYI</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">---------- Forwarded message ---------<br>From: <strong class="gmail_sendername" dir="auto">atoc-colloquium (Andrew Winters)</strong> <span dir="auto"><<a href="mailto:atoc-colloquium@lists.colorado.edu">atoc-colloquium@lists.colorado.edu</a>></span><br>Date: Thu, Sep 1, 2022 at 7:58 AM<br>Subject: Re: ATOC Colloquium – Prof. Kris Karnauskas (ATOC) – Friday, Sept. 2 at 11am (SEEC S228 and Zoom)<br>To: atoc-faculty (Alexandra Jahn) <<a href="mailto:atoc-faculty@lists.colorado.edu">atoc-faculty@lists.colorado.edu</a>>, atoc-students (Julie Lundquist) <<a href="mailto:atoc-students@lists.colorado.edu">atoc-students@lists.colorado.edu</a>>, atoc-researchers (Kelly Duong) <<a href="mailto:atoc-researchers@lists.colorado.edu">atoc-researchers@lists.colorado.edu</a>>, <a href="mailto:Atoc-majors@lists.colorado.edu">Atoc-majors@lists.colorado.edu</a> <<a href="mailto:atoc-majors@lists.colorado.edu">atoc-majors@lists.colorado.edu</a>>, <a href="mailto:Atoc-minors@lists.colorado.edu">Atoc-minors@lists.colorado.edu</a> <<a href="mailto:atoc-minors@lists.colorado.edu">atoc-minors@lists.colorado.edu</a>>, <a href="mailto:atoc-colloquium@lists.colorado.edu">atoc-colloquium@lists.colorado.edu</a> <<a href="mailto:atoc-colloquium@lists.colorado.edu">atoc-colloquium@lists.colorado.edu</a>><br></div><br><br><div class="msg8039341162330081873">
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<span style="color:rgb(0,0,0);background-color:rgb(255,255,255);display:inline!important">Hi everyone,</span>
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<div style="margin:0px;color:rgb(0,0,0)">A<span> </span><span style="margin:0px">reminder</span><span> </span>that we will hold the first ATOC<span> </span><span style="margin:0px">colloquium</span><span> </span>of
the academic year on<span> </span><b>Friday, September 2 at 11am MT over Zoom and in SEEC S228</b>.
<span style="color:rgb(0,0,0);background-color:rgb(255,255,255);display:inline!important">
This week's </span><span style="margin:0px;color:rgb(0,0,0);background-color:rgb(255,255,255)"><span style="margin:0px"><span style="margin:0px">colloquium</span></span></span><span style="color:rgb(0,0,0);background-color:rgb(255,255,255);display:inline!important"> will
feature</span><span style="margin:0px;color:rgb(0,0,0);background-color:rgb(255,255,255)"> a seminar from ATOC professor<span style="margin:0px"> </span><b>Kris Karnauskas</b><span style="margin:0px"> </span>entitled,<span style="margin:0px"> </span><i>"Upwelling
and Equatorial Islands: Old Theories and the Ocean Data Revolution</i></span><span style="color:rgb(0,0,0);background-color:rgb(255,255,255);display:inline!important">".</span><b style="color:black;background-color:white"> <span style="font-weight:400;margin:0px;background-color:white;color:black"><span style="color:rgb(0,0,0);background-color:rgb(255,255,255);display:inline!important">The
zoom login information and abstract for the </span><span style="margin:0px;color:rgb(0,0,0);background-color:rgb(255,255,255)">colloquium</span><span style="color:rgb(0,0,0);background-color:rgb(255,255,255);display:inline!important"> are
provided below. Please join us for coffee and conversation beginning at 10:45am MT, and stay afterwards for a lunch catered by Illegal Pete's.</span></span></b></div>
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<div style="margin:0px;color:rgb(0,0,0)">We look forward to seeing you tomorrow!</div>
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<span style="color:rgb(0,0,0);background-color:rgb(255,255,255);display:inline!important">-The ATOC<span> </span></span><span style="margin:0px;color:rgb(0,0,0)">Colloquium</span><span style="color:rgb(0,0,0);background-color:rgb(255,255,255);display:inline!important"><span> </span>Committee</span><br>
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<div style="margin:0px"><b>Upwelling and Equatorial Islands: Old Theories and the Ocean Data Revolution<br>
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<div style="margin:0px">Kris Karnauskas (ATOC)<b><br>
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Wind-driven upwelling is the stuff of 20th century legends from Ekman to Wyrtki. Along the equator in the open ocean, easterly trade winds peel the surface away and cold, nutrient-rich water rises from depth. Islands, on the other hand, are flies in the ointment.
Hotspots of marine productivity and biodiversity near equatorial island chains, fueled by upwelling velocities an order of magnitude greater than in the open ocean, challenge the textbook theories. Our nascent understanding of equatorial islands and their
relationship with the ocean circulation delays our ability to predict (and protect) crucial tropical marine ecosystems. First, we will use the global Argo array of profiling floats to reveal the spatial scales and provenance of upwelling at two distinct equatorial
island chains (Galápagos and Gilberts). Argo measurements resolve a clear subsurface thermal fingerprint of vertical divergence at the depth of the Equatorial Undercurrent (EUC), confined to within 100 km of both island chains. This signal at the Galápagos
is well reproduced by a high-resolution ocean reanalysis, enabling estimation of vertical velocities balancing the convergence of the EUC upon the islands. Next, we will investigate the curious observation that the waters off the Galápagos have been cooling
over the satellite era. Using the aforementioned reanalysis, we will see that an acceleration and shift of the EUC, attributable to the interhemispheric gradient in surface warming, leads to faster upwelling and more vigorous mixing. Analogous to other so-called
cold blobs, this is an early and important sentinel of broader changes in the global ocean circulation. Thus far, and for perhaps the very near future, the western shores of the Galápagos appear to offer refuge from some of the harmful impacts of climate change.<br>
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<div style="margin:0px;color:black;background-color:white"><u>Zoom login Information:</u></div>
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<div style="margin:0px;color:black;background-color:white"><b>Topic: ATOC Colloquium</b>
<div style="margin:0px"><b>Time: Friday, Sept. 2 at 11am MT</b></div>
<div style="margin:0px"><b><br>
</b></div>
<div style="margin:0px"><b>Join Zoom Meeting</b></div>
<div style="margin:0px"><b><a href="https://cuboulder.zoom.us/j/97845417945" rel="noopener noreferrer" style="margin:0px" target="_blank">https://cuboulder.zoom.us/j/97845417945</a></b></div>
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<div style="margin:0px"><b>Meeting ID: 978 4541 7945<br>
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<span style="font-size:12pt;font-family:Calibri,Arial,Helvetica,sans-serif;margin:0px;text-align:start;color:black;background-color:white"><span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px"><b></b></span></span></div>
<span style="font-weight:400;font-size:12pt;font-family:Calibri,Arial,Helvetica,sans-serif;margin:0px;color:black;background-color:white"><span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px">_______________________________________________________</span></span><span style="font-family:"Segoe UI","Segoe UI Web (West European)","Segoe UI",-apple-system,"system-ui",Roboto,"Helvetica Neue",sans-serif;font-size:15px;font-weight:400;background-color:rgb(255,255,255);display:inline!important"></span>
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<span style="font-weight:400;font-size:15px;font-family:"Segoe UI","Segoe UI Web (West European)","Segoe UI",-apple-system,"system-ui",Roboto,"Helvetica Neue",sans-serif;margin:0px;background-color:white"></span><span style="font-weight:400;font-size:15px;font-family:"Segoe UI","Segoe UI Web (West European)","Segoe UI",-apple-system,"system-ui",Roboto,"Helvetica Neue",sans-serif;margin:0px;background-color:white"></span><span style="font-family:"Segoe UI","Segoe UI Web (West European)","Segoe UI",-apple-system,"system-ui",Roboto,"Helvetica Neue",sans-serif;font-size:15px;font-weight:400;background-color:rgb(255,255,255);display:inline!important"></span>
<div style="font-weight:400;font-size:12pt;font-family:Calibri,Arial,Helvetica,sans-serif;margin:0px;color:black;background-color:white">
<span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px"><b>Andrew C. Winters</b></span></div>
<div style="font-weight:400;font-size:12pt;font-family:Calibri,Arial,Helvetica,sans-serif;margin:0px;color:black;background-color:white">
<span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px">Assistant Professor</span></div>
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<span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px">Department of Atmospheric and Oceanic Sciences (ATOC)</span></div>
<div style="font-weight:400;font-size:12pt;font-family:Calibri,Arial,Helvetica,sans-serif;margin:0px;color:black;background-color:white">
<span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px">University of Colorado Boulder</span></div>
<div style="font-weight:400;font-size:12pt;font-family:Calibri,Arial,Helvetica,sans-serif;margin:0px;color:black;background-color:white">
<span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px">311 UCB</span><span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px;color:black">, Boulder, CO 80309-0311</span></div>
<div style="font-weight:400;font-size:12pt;font-family:Calibri,Arial,Helvetica,sans-serif;margin:0px;color:black;background-color:white">
<span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px">Office: SEEC C277 || </span><span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px;color:black">Phone: 303-735-5775</span></div>
<span style="font-weight:400;font-size:12pt;font-family:Calibri,Arial,Helvetica,sans-serif;margin:0px;color:black;background-color:white"><span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px"></span><a href="https://acwinters.weebly.com/" rel="noopener noreferrer" style="margin:0px" target="_blank"><span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px">https://acwinters.weebly.com</span></a><span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px;color:black"> ||
@acwinters_wx || he/him/his</span></span><span style="font-family:"Segoe UI","Segoe UI Web (West European)","Segoe UI",-apple-system,"system-ui",Roboto,"Helvetica Neue",sans-serif;font-size:15px;font-weight:400;background-color:rgb(255,255,255);display:inline!important"></span>
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<div style="font-weight:400;font-size:12pt;margin:0px;background-color:rgb(255,255,255);color:black">
<font face="Calibri Light,Helvetica Light,sans-serif"><i><span style="font-family:Roboto,"Helvetica Neue",Helvetica,Arial,sans-serif;margin:0px;outline:0px;color:rgb(17,17,17);background-color:white">CU Boulder acknowledges that it is located
on the traditional territories and ancestral homelands of the Cheyenne, Arapaho, Ute and many other Native American nations. Their forced removal from these territories has caused devastating and lasting impacts.<span style="margin:0px"> </span></span><a href="https://www.colorado.edu/about/land-acknowledgement" rel="noopener noreferrer" style="font-family:Roboto,"Helvetica Neue",Helvetica,Arial,sans-serif;margin:0px;outline:0px;color:rgb(2,119,189);background-color:white" target="_blank">Full
CU Boulder land acknowledgment</a><span style="font-family:Roboto,"Helvetica Neue",Helvetica,Arial,sans-serif;margin:0px;color:rgb(17,17,17);background-color:white"> </span></i></font></div>
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<div id="m_8039341162330081873divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Andrew Winters<br>
<b>Sent:</b> Friday, August 26, 2022 10:07 AM<br>
<b>To:</b> atoc-faculty (Alexandra Jahn) <<a href="mailto:atoc-faculty@lists.colorado.edu" target="_blank">atoc-faculty@lists.colorado.edu</a>>; atoc-students (Julie Lundquist) <<a href="mailto:atoc-students@lists.colorado.edu" target="_blank">atoc-students@lists.colorado.edu</a>>; atoc-researchers (Kelly Duong) <<a href="mailto:atoc-researchers@lists.colorado.edu" target="_blank">atoc-researchers@lists.colorado.edu</a>>; <a href="mailto:Atoc-majors@lists.colorado.edu" target="_blank">Atoc-majors@lists.colorado.edu</a> <<a href="mailto:atoc-majors@lists.colorado.edu" target="_blank">atoc-majors@lists.colorado.edu</a>>;
<a href="mailto:Atoc-minors@lists.colorado.edu" target="_blank">Atoc-minors@lists.colorado.edu</a> <<a href="mailto:atoc-minors@lists.colorado.edu" target="_blank">atoc-minors@lists.colorado.edu</a>>; <a href="mailto:atoc-colloquium@lists.colorado.edu" target="_blank">atoc-colloquium@lists.colorado.edu</a> <<a href="mailto:atoc-colloquium@lists.colorado.edu" target="_blank">atoc-colloquium@lists.colorado.edu</a>><br>
<b>Subject:</b> ATOC Colloquium – Prof. Kris Karnauskas (ATOC) – Friday, Sept. 2 at 11am (SEEC S228 and Zoom)</font>
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<span style="font-size:12pt;margin:0px;color:black;background-color:white"><span style="margin:0px;background-color:white;color:black"><span style="margin:0px;background-color:white;color:black"><span style="margin:0px;background-color:white;color:black"><span style="margin:0px;background-color:white;color:black"><span style="margin:0px;background-color:white;color:black"><span style="margin:0px;background-color:white;color:black"><span style="margin:0px;background-color:white;color:black"><span style="margin:0px;background-color:white"><span style="margin:0px">Hi
everyone,<br>
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<div style="margin:0px">Welcome back to a new semester! The first <span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px">ATOC</span></span></span></span></span> <span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px">Colloquium
of the fall</span></span></span></span></span></span> will be held in a hybrid format on<span style="margin:0px"> </span><b>Friday, September 2 from 11a–12p MT over Zoom and in SEEC S228.<span style="margin:0px"> </span></b>This week's <span style="margin:0px"><span style="margin:0px"><span style="margin:0px">colloquium</span></span></span> will
feature<span style="margin:0px"> a seminar from ATOC professor<span style="margin:0px"> </span><b>Kris Karnauskas</b><span style="margin:0px"> </span>entitled,<span style="margin:0px"> </span><i>"Upwelling and Equatorial Islands: Old Theories and the Ocean
Data Revolution</i></span>". The zoom login information and abstract for the <span>colloquium</span> are provided below. Please join us for coffee and conversation beginning at 10:45am MT, and stay afterwards for
a lunch catered by Illegal Pete's.</div>
<div style="margin:0px"><b style="font-family:inherit;font-size:inherit;font-style:inherit;font-variant-ligatures:inherit;font-variant-caps:inherit"><b><b></b></b></b></div>
<div style="margin:0px">Please let us know if you have any questions or are interested in delivering a talk at a future<span style="margin:0px"> </span><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px">colloquium</span></span></span></span></span></span></span></span>. <span style="margin:0px;background-color:white;color:black">A
full schedule of<span style="margin:0px"> </span><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px">ATOC</span></span></span></span></span><span style="margin:0px"> </span>colloquia
can be found at</span><span style="margin:0px;background-color:white;color:black"> </span><a href="https://www.colorado.edu/atoc/colloquium" rel="noopener noreferrer" style="margin:0px;background-color:white" target="_blank">https://www.colorado.edu/<span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px">atoc</span></span></span></span></span>/<span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px">colloquium</span></span></span></span></span></span></a>.
Please note that we are still looking for two graduate students who would like to present a short 15-minute summary of their research on November 11.</div>
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<div style="margin:0px">We look forward to seeing you on Sept. 2!<br>
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<div style="margin:0px">-The<span style="margin:0px"> </span><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px">ATOC</span></span></span></span></span></span><span style="margin:0px"> </span><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px"><span style="margin:0px">Colloquium</span></span></span></span></span></span></span></span><span style="margin:0px"> </span>Committee</div>
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<div style="margin:0px"><b>Upwelling and Equatorial Islands: Old Theories and the Ocean Data Revolution<br>
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<div style="margin:0px">Kris Karnauskas (ATOC)<b><br>
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Wind-driven upwelling is the stuff of 20th century legends from Ekman to Wyrtki. Along the equator in the open ocean, easterly trade winds peel the surface away and cold, nutrient-rich water rises from depth. Islands, on the other hand, are flies in the ointment.
Hotspots of marine productivity and biodiversity near equatorial island chains, fueled by upwelling velocities an order of magnitude greater than in the open ocean, challenge the textbook theories. Our nascent understanding of equatorial islands and their
relationship with the ocean circulation delays our ability to predict (and protect) crucial tropical marine ecosystems. First, we will use the global Argo array of profiling floats to reveal the spatial scales and provenance of upwelling at two distinct equatorial
island chains (Galápagos and Gilberts). Argo measurements resolve a clear subsurface thermal fingerprint of vertical divergence at the depth of the Equatorial Undercurrent (EUC), confined to within 100 km of both island chains. This signal at the Galápagos
is well reproduced by a high-resolution ocean reanalysis, enabling estimation of vertical velocities balancing the convergence of the EUC upon the islands. Next, we will investigate the curious observation that the waters off the Galápagos have been cooling
over the satellite era. Using the aforementioned reanalysis, we will see that an acceleration and shift of the EUC, attributable to the interhemispheric gradient in surface warming, leads to faster upwelling and more vigorous mixing. Analogous to other so-called
cold blobs, this is an early and important sentinel of broader changes in the global ocean circulation. Thus far, and for perhaps the very near future, the western shores of the Galápagos appear to offer refuge from some of the harmful impacts of climate change.<br>
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<div style="margin:0px;background-color:white;color:black"><b>Topic: ATOC Colloquium</b>
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<span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px"><b>Andrew C. Winters</b></span></div>
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<span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px">Department of Atmospheric and Oceanic Sciences (ATOC)</span></div>
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<span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px">University of Colorado Boulder</span></div>
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<span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px">311 UCB</span><span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px;color:black">, Boulder, CO 80309-0311</span></div>
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<span style="font-weight:400;font-size:12pt;font-family:Calibri,Arial,Helvetica,sans-serif;margin:0px;background-color:rgb(255,255,255);color:black"><span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px"></span><a href="https://acwinters.weebly.com/" rel="noopener noreferrer" style="margin:0px" target="_blank"><span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px">https://acwinters.weebly.com</span></a><span style="font-family:"Calibri Light","Helvetica Light",sans-serif;margin:0px;color:black"> ||
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it is located on the traditional territories and ancestral homelands of the Cheyenne, Arapaho, Ute and many other Native American nations. Their forced removal from these territories has caused devastating and lasting impacts.<span> </span></span><a href="https://www.colorado.edu/about/land-acknowledgement" style="margin:0px;outline:0px;font-family:Roboto,"Helvetica Neue",Helvetica,Arial,sans-serif;color:rgb(2,119,189);text-decoration:none rgba(2,119,189,0.65);text-align:start;background-color:rgb(255,255,255)" target="_blank">Full
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</div></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><font style="background-color:rgb(255,255,255)" color="#000000"><span style="font-family:arial,sans-serif">Scott Briggs</span><br></font></div><div><span style="font-family:arial,sans-serif;background-color:rgb(255,255,255)"><font color="#000000">(he/him)</font></span></div><div><font face="arial, sans-serif" style="background-color:rgb(255,255,255)" color="#000000">Administrator</font></div><div><font face="arial, sans-serif" style="background-color:rgb(255,255,255)" color="#000000"><br></font></div><div dir="ltr"><font face="arial, sans-serif" style="background-color:rgb(255,255,255)" color="#000000">Advanced Study Program<br>Education, Engagement and Early-Career Development<br>National Center For Atmospheric Research</font></div><div><font face="arial, sans-serif" size="1" color="#000000"><i style="background-color:rgb(255,255,255)">phone: 303.497.1607</i></font></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>