[Grad-postdoc-assn] Fwd: ATOC Colloquium (Fri. Apr. 12 @ 11am MT) – Laura Sunberg and Arianna Varuolo-Clarke – SEEC S372A/B and Zoom

Scott Briggs sbriggs at ucar.edu
Thu Apr 11 08:24:18 MDT 2024


FYI

---------- Forwarded message ---------
From: Andrew Winters <andrew.c.winters at colorado.edu>
Date: Thu, Apr 11, 2024 at 8:00 AM
Subject: Re: ATOC Colloquium (Fri. Apr. 12 @ 11am MT) – Laura Sunberg and
Arianna Varuolo-Clarke – SEEC S372A/B and Zoom
To: ATOC Faculty <atoc-faculty at colorado.edu>, atoc-majors at colorado.edu <
atoc-majors at colorado.edu>, atoc-minors at colorado.edu <
atoc-minors at colorado.edu>, ATOC Researchers <atoc-researchers at colorado.edu>,
ATOC Graduate Students <atoc-students at colorado.edu>,
atoc-colloquium at colorado.edu <atoc-colloquium at colorado.edu>


Hi everyone,

A reminder that the next ATOC Colloquium will be held in a hybrid
format on *Friday,
April 12 from 11a–12p MT over Zoom and in SEEC S372A/B*. *Note the room
change relative to prior colloquia!* This week's colloquium will feature
talks from postdoctoral research associates, *Laura Sunberg and Arianna
Varuolo-Clarke.* The zoom login information and abstracts for each talk are
provided below. Please join us for conversation beginning at 10:45am MT,
and stay afterwards for a lunch catered by Illegal Pete's.
We look forward to seeing you on Friday!

-The ATOC Colloquium Committee

_________________________________________________

*Impact of Biofouling on the Regional-Scale Transport of Microplastics *
Laura Sunberg

Microplastics are a growing and pervasive problem in the world’s oceans. As
such, it is important to understand their transport in ocean flows. Their
transport is complicated by biofouling, i.e., the growth of organisms that
adhere to the microplastic particles. Biofouling increases the size and
density of microplastics, changing their settling velocity and thereby
their transport. Biofouling is also dependent on transport, as more fouling
will occur when microplastics are in regions where organism growth is more
biologically favorable. In this talk, I will share our methods for and
preliminary results from modeling the regional-scale impact of biofouling
on microplastic transport in the northern Gulf of Mexico. Our results show
that biofouling can significantly impact distributions of microplastics and
the degree to which they are deposited on the seabed, retained in
nearshore/beach areas, and/or exported from the study domain. We also
identify areas where further experimental and observational work would be
most useful through a sensitivity analysis. These results highlight the
importance of accounting for changing microplastic properties in response
to varying environmental conditions to understand their transport.

*Exploring Drivers of Modeled Mid-Latitude Precipitation Change *
Arianna Varuolo-Clarke

As we continue to pump CO2 and other greenhouse gases (GHGs) into the
atmosphere, global average temperatures continue to rise and hydroclimate
patterns, including precipitation, are shifting. Systematically quantifying
precipitation changes, however, is challenging because the physical
constraints of precipitation are not as well understood as those of
temperature. Additionally, there is a large amount of internal variability
associated with precipitation that adds to the challenge of quantifying
precipitation trends. Constraining precipitation projections are further
complicated by the need to parameterize processes related to precipitation,
like cloud formation and atmospheric convection, in state-of-the-art
climate models. The goal of this study is to understand the drivers of
mid-latitude precipitation change. To do this, we employ the CESM2 Large
Ensemble and quantify the thermodynamic vs. dynamic contributions to
precipitation change across the Northern and Southern Hemisphere
midlatitudes (~30°-60°) based on a large-scale moisture budget. Using daily
precipitation and daily 500 hPa vertical velocity, we quantify the
precipitation changes attributable to changes in the vertical velocity,
considered the dynamic change, and changes related to the atmospheric
moisture content (the thermodynamic change).

__________________________________________________

*Zoom login Information:*

*Topic: ATOC Colloquium*
*Time: Apr 12, 2024 11:00 AM Mountain Time (US and Canada)*

*https://cuboulder.zoom.us/j/93794324385
<https://cuboulder.zoom.us/j/93794324385>*
*Meeting ID: 937 9432 4385*
*Passcode: ATOC*

One tap mobile
+17193594580,,93794324385# US
+12532050468,,93794324385# US

Dial by your location
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• +1 253 205 0468 US
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Join by SIP
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Meeting ID: 937 9432 4385
Passcode: 856068

_______________________________________________________

*Andrew C. Winters*
Assistant Professor
Department of Atmospheric and Oceanic Sciences (ATOC)
University of Colorado Boulder
311 UCB, Boulder, CO 80309-0311
Phone: 303-735-5775
https://acwinters.weebly.com
<https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Facwinters.weebly.com%2F&data=05%7C02%7Catoc-colloquium%40colorado.edu%7C089d3aa648a5431d904308dc5a2fae18%7C3ded8b1b070d462982e4c0b019f46057%7C1%7C0%7C638484408045727987%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=Jw0baaukpu0bVYBey3MoAKFH%2BnReCI2esgO7j5UVh7c%3D&reserved=0>
||
@acwinters_wx || he/him/his

*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. **Full CU Boulder land acknowledgment
<https://www.colorado.edu/about/land-acknowledgement>*

------------------------------
*From:* Andrew Winters
*Sent:* Saturday, April 6, 2024 7:19 AM
*To:* ATOC Faculty <atoc-faculty at colorado.edu>; atoc-majors at colorado.edu <
atoc-majors at colorado.edu>; atoc-minors at colorado.edu <
atoc-minors at colorado.edu>; ATOC Researchers <atoc-researchers at colorado.edu>;
ATOC Graduate Students <atoc-students at colorado.edu>;
atoc-colloquium at colorado.edu <atoc-colloquium at colorado.edu>
*Subject:* ATOC Colloquium (Fri. Apr. 12 @ 11am MT) – Laura Sunberg and
Arianna Varuolo-Clarke – SEEC S372A/B and Zoom

Hi everyone,

The next ATOC Colloquium will be held in a hybrid format on *Friday, April
12 from 11a–12p MT over Zoom and in SEEC S372A/B*. *Note the room change
relative to prior colloquia!* This week's colloquium will feature talks from
 postdoctoral research associates, *Laura Sunberg and Arianna
Varuolo-Clarke.* The zoom login information and abstracts for each talk are
provided below. Please join us for conversation beginning at 10:45am MT,
and stay afterwards for a lunch catered by Illegal Pete's.
We look forward to seeing you on Friday!

-The ATOC Colloquium Committee

_________________________________________________

*Impact of Biofouling on the Regional-Scale Transport of Microplastics *
Laura Sunberg

Microplastics are a growing and pervasive problem in the world’s oceans. As
such, it is important to understand their transport in ocean flows. Their
transport is complicated by biofouling, i.e., the growth of organisms that
adhere to the microplastic particles. Biofouling increases the size and
density of microplastics, changing their settling velocity and thereby
their transport. Biofouling is also dependent on transport, as more fouling
will occur when microplastics are in regions where organism growth is more
biologically favorable. In this talk, I will share our methods for and
preliminary results from modeling the regional-scale impact of biofouling
on microplastic transport in the northern Gulf of Mexico. Our results show
that biofouling can significantly impact distributions of microplastics and
the degree to which they are deposited on the seabed, retained in
nearshore/beach areas, and/or exported from the study domain. We also
identify areas where further experimental and observational work would be
most useful through a sensitivity analysis. These results highlight the
importance of accounting for changing microplastic properties in response
to varying environmental conditions to understand their transport.

*Exploring Drivers of Modeled Mid-Latitude Precipitation Change *
Arianna Varuolo-Clarke

As we continue to pump CO2 and other greenhouse gases (GHGs) into the
atmosphere, global average temperatures continue to rise and hydroclimate
patterns, including precipitation, are shifting. Systematically quantifying
precipitation changes, however, is challenging because the physical
constraints of precipitation are not as well understood as those of
temperature. Additionally, there is a large amount of internal variability
associated with precipitation that adds to the challenge of quantifying
precipitation trends. Constraining precipitation projections are further
complicated by the need to parameterize processes related to precipitation,
like cloud formation and atmospheric convection, in state-of-the-art
climate models. The goal of this study is to understand the drivers of
mid-latitude precipitation change. To do this, we employ the CESM2 Large
Ensemble and quantify the thermodynamic vs. dynamic contributions to
precipitation change across the Northern and Southern Hemisphere
midlatitudes (~30°-60°) based on a large-scale moisture budget. Using daily
precipitation and daily 500 hPa vertical velocity, we quantify the
precipitation changes attributable to changes in the vertical velocity,
considered the dynamic change, and changes related to the atmospheric
moisture content (the thermodynamic change).

__________________________________________________

*Zoom login Information:*

*Topic: ATOC Colloquium*
*Time: Apr 12, 2024 11:00 AM Mountain Time (US and Canada)*

*https://cuboulder.zoom.us/j/93794324385
<https://cuboulder.zoom.us/j/93794324385>*
*Meeting ID: 937 9432 4385*
*Passcode: ATOC*

One tap mobile
+17193594580,,93794324385# US
+12532050468,,93794324385# US

Dial by your location
• +1 719 359 4580 US
• +1 253 205 0468 US
• +1 253 215 8782 US (Tacoma)
• +1 346 248 7799 US (Houston)
• +1 669 444 9171 US
• +1 669 900 6833 US (San Jose)
• +1 646 558 8656 US (New York)
• +1 646 931 3860 US
• +1 689 278 1000 US
• +1 301 715 8592 US (Washington DC)
• +1 305 224 1968 US
• +1 309 205 3325 US
• +1 312 626 6799 US (Chicago)
• +1 360 209 5623 US
• +1 386 347 5053 US
• +1 507 473 4847 US
• +1 564 217 2000 US

Join by SIP
• 93794324385 at zoomcrc.com

Join by H.323
• 162.255.37.11 (US West)
• 162.255.36.11 (US East)
• 115.114.131.7 (India Mumbai)
• 115.114.115.7 (India Hyderabad)
• 213.19.144.110 (Amsterdam Netherlands)
• 213.244.140.110 (Germany)
• 103.122.166.55 (Australia Sydney)
• 103.122.167.55 (Australia Melbourne)
• 149.137.40.110 (Singapore)
• 64.211.144.160 (Brazil)
• 149.137.68.253 (Mexico)
• 69.174.57.160 (Canada Toronto)
• 65.39.152.160 (Canada Vancouver)
• 207.226.132.110 (Japan Tokyo)
• 149.137.24.110 (Japan Osaka)

Meeting ID: 937 9432 4385
Passcode: 856068

_______________________________________________________

*Andrew C. Winters*
Assistant Professor
Department of Atmospheric and Oceanic Sciences (ATOC)
University of Colorado Boulder
311 UCB, Boulder, CO 80309-0311
Phone: 303-735-5775
https://acwinters.weebly.com
<https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Facwinters.weebly.com%2F&data=05%7C02%7Catoc-colloquium%40colorado.edu%7C089d3aa648a5431d904308dc5a2fae18%7C3ded8b1b070d462982e4c0b019f46057%7C1%7C0%7C638484408045727987%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=Jw0baaukpu0bVYBey3MoAKFH%2BnReCI2esgO7j5UVh7c%3D&reserved=0>
||
@acwinters_wx || he/him/his

*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. **Full CU Boulder land acknowledgment
<https://www.colorado.edu/about/land-acknowledgement>*

To unsubscribe from this group and stop receiving emails from it, send an
email to atoc-colloquium+unsubscribe at colorado.edu.


-- 
Scott Briggs (he/him/his)
Program Specialist II

Advanced Study Program
Education, Engagement and Early-Career Development
NSF National Center For Atmospheric Research
*phone: 303.497.1607*
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