BEGIN:VCALENDAR VERSION:2.0 X-WR-CALNAME:EventsCalendar PRODID:-//hacksw/handcal//NONSGML v1.0//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York LAST-MODIFIED:20240422T053451Z TZURL:https://www.tzurl.org/zoneinfo-outlook/America/New_York X-LIC-LOCATION:America/New_York BEGIN:DAYLIGHT TZNAME:EDT TZOFFSETFROM:-0500 TZOFFSETTO:-0400 DTSTART:19700308T020000 RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU END:DAYLIGHT BEGIN:STANDARD TZNAME:EST TZOFFSETFROM:-0400 TZOFFSETTO:-0500 DTSTART:19701101T020000 RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU END:STANDARD END:VTIMEZONE BEGIN:VEVENT CATEGORIES:College of Engineering DESCRIPTION:Topic: “The sound of glacial retreat: broadband acoustic char acterization of ice-ocean boundary” Abstract: The submerged termini of t idewater glaciers are a critical, yet poorly characterized component of hi gh latitude regions. The ice-ocean interface act as a conduit for freshwat er discharge from terrestrial ice sheets to the ocean, both directly via s ubmarine melting and calving and as the emission location of sub- and supr a-glacial runoff. Traditional oceanographic measurement techniques are lim ited at glacial termini by dangers associated with iceberg calving; remote measurements by active acoustic systems represent a useful, if underutili zed, tool to study this critical region. This talk will discuss research e fforts to characterize the ice-ocean interface and associated freshwater d ischarge processes of tidewater glaciers based on field data collected in Svalbard in 2023 and 2026. These efforts include 1) characterizing the con nections between broadband backscattering spectra and ice face geometry, 2 ) investigating the impact of ice face roughness on backscattering distrib utions over a range of grazing angles, and 3) measuring the geographic ext ent and scattering mechanisms associated with a subglacial discharge plume . Biography: Dr. Liz Weidner is an Assistant Professor of Marine Sciences at the University of Connecticut. She is an acoustical oceanographer who u ses broadband acoustic systems to study high-latitude oceans. Her field ex perience includes chief scientist for two field campaigns in Hornsund fjor d, Svalbard and PI on Ice Breaker Oden during two expeditions to Northern Greenland. Prior to joining the faculty at University of Connecticut, Liz was a postdoctoral fellow at Scripps Institution of Oceanography at the Un iversity of California San Diego. She received her PhD in oceanography in 2023 from a joint program between the University of New Hampshire and Stoc kholm University. NOTE: All ECE Graduate Students are ENCOURAGED to attend . All interested parties are invited to attend. Open to the public. *For further information, please contact Dr. John R. Buck via email at jbuck@u massd.edu.\nEvent page: https://www.umassd.edu/events/cms/11-6-26-dr-liz-w eidner-assistant-professor-of-marine-sciences-u.php X-ALT-DESC;FMTTYPE=text/html:

Topic: “The sound of glacial retreat: broadband acoustic characterization of ice-ocean boundary”

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Abstract:

The submerged termini of tidewater glaciers are a cr itical\, yet poorly characterized component of high latitude regions. The ice-ocean interface act as a conduit for freshwater discharge from terrest rial ice sheets to the ocean\, both directly via submarine melting and cal ving and as the emission location of sub- and supra-glacial runoff. Tradit ional oceanographic measurement techniques are limited at glacial termini by dangers associated with iceberg calving\; remote measurements by active acoustic systems represent a useful\, if underutilized\, tool to study th is critical region. This talk will discuss research efforts to characteriz e the ice-ocean interface and associated freshwater discharge processes of tidewater glaciers based on field data collected in Svalbard in 2023 and 2026. These efforts include 1) characterizing the connections between broa dband backscattering spectra and ice face geometry\, 2) investigating the impact of ice face roughness on backscattering distributions over a range of grazing angles\, and 3) measuring the geographic extent and scattering mechanisms associated with a subglacial discharge plume.

Biography :

Dr. Liz Weidner is an Assistant Professor of Marine Sciences at the University of Connecticut. She is an acoustical oceanographer who uses broadband acoustic systems to study high-latitude oceans. Her field exper ience includes chief scientist for two field campaigns in Hornsund fjord\, Svalbard and PI on Ice Breaker Oden during two expeditions to Northern Gr eenland. Prior to joining the faculty at University of Connecticut\, Liz w as a postdoctoral fellow at Scripps Institution of Oceanography at the Uni versity of California San Diego. She received her PhD in oceanography in 2 023 from a joint program between the University of New Hampshire and Stock holm University.

NOTE: All ECE Graduate Students are ENCOURAGED to attend. All interested parties are invited to attend. Open to the public.

*For further information\, please contact Dr. John R. Buck via email at jbuck@umassd.edu.

Event page: https://www.umassd.edu/events/cms/11-6-26-dr-liz-weidner-assistan t-professor-of-marine-sciences-u.php

DTSTAMP:20261026T154923 DTSTART;TZID=America/New_York:20261106T140000 DTEND;TZID=America/New_York:20261106T150000 LOCATION:Science & Engineering Building (SENG), Room 212 SUMMARY;LANGUAGE=en-us:Dr. Liz Weidner, Assistant Professor of Marine Scien ces, University of Connecticut UID:891ffd117d55e5c6f566df6d031d358c@www.umassd.edu END:VEVENT END:VCALENDAR