The PALeo-constraints on SEA-level rise (PALSEA) working group workshop "Improving understanding of ice-sheet and solid-Earth processes driving paleo sea-level change" will be held from 13-16 September 2021 online.
UPDATE as of 30 August: Due to the rapidly changing COVID-19 situation this meeting has been moved completely online (and no longer hybrid). In addition, the schedule has been extended by one day, while shortening events on the other days.
(This workshop was originally planned for 14-15 September 2020, but postponed because of coronavirus disruptions.)
Logistics
This is a joint meeting with SERCE. The meeting will be online and is open to all.
Registration link: https://forms.gle/FsvLPxiVJXo2taGb7
If you haven’t signed up yet but are interested to join, there’s still time to register. Just fill out the short form above.
Please see the updated agenda here.
Message from the organizers
"We understand that some of you may not have planned on being available on the 16th so if we have rescheduled your talk to the 16th and you are unavailable that day, please let us know ASAP and we will rearrange your talk time.
Oral slots are scheduled for 20 mins each (18 minutes of talk, 2 minutes of questions) and presentations will be live on zoom.
For those of you presenting a poster, we ask that you prepare a recorded 2-minute summary talk on your poster to be shown Tuesday and Wednesday immediately preceding the poster session as a way to advertise your poster. Please save the recorded talk as an MP-4 file. Recordings can for example be done via powerpoint or zoom.
During the poster session we plan on presenting the posters via “sharing your screen” through zoom. We ask that you set up a link to a zoom meeting from 11:30 am to 12:30 pm US Eastern Time on the day of your poster presentation (either Tuesday 14 September or Wednesday 15 September - see the program).
If you have trouble or need help setting up the zoom or making the recording, please let us know. Please email your MP-4 file and zoom link to N.L.M.Barlow@leeds.ac.uk AND asimms@geol.ucsb.edu by 12:00 pm Eastern on 9 September."
Description
This meeting will focus on developing a better understanding of the physical processes that drive ice-sheet collapse and solid earth deformation. These processes are highly uncertain due to a lack of observational constraints, yet they are the dominant drivers for local sea-level change. Overcoming this uncertainty requires drawing from observations and expertise from a variety of fields complementary to PALSEA including mineral physics, geodynamics, and glaciology.
In this meeting, we aim to bring empiricists and modelers from these communities together in order to unify solid Earth deformation and ice-sheet evolution across time and spatial scales. Pairing our improved understanding of physical processes with enhanced paleo datasets will allow us to narrow in on ice-sheet contributions to past sea-level rise.
Program
Full program with abstracts:
https://palseagroup.weebly.com/uploads/1/1/5/6/115603541/palsea_2021_workshop.pdf
The meeting will run from Monday - Thursday, September 13-16th, 8.30 - 12.30pm EDT each day. As with all zoom meetings, this time will not be great for all of us and I apologize for the inconvenience. We will record presentations, which will be available for a limited time after the meeting.
The meeting will consist of oral and poster presentations. Additionally, time will be dedicated to discussing benchmarking and intercomparison efforts in the GIA community as well as best practices for code and model output sharing.
The meeting will be dedicated to better understanding of solid Earth deformation on ice-age timescales such as glacial isostatic adjustment, tectonics, and mantle dynamic topography.
It will be dedicated to presentations addressing cutting-edge constraints on paleo ice sheets including ice-sheet modeling and ice-margin constraints.
During the meeting, data stewardship in the sea-level modeling community will be addressed. In particular a focus will be on:
- trying to establish best practices for the documentation, distribution, and citation of numerical code;
- what benchmarking across different 1D and 3D codes exist and/or should be done; and
- how model output should be made available to the community (what format, what platform).
Addressing these goals will be an integral part of the data-stewardship activities of this PALSEA phase.
Confirmed speakers
- (ECR) Harriet Lau, University of California, Berkeley, USA – expertise in transient rheology and GIA
- (ECR) Kerry Callaghan, Lamont-Doherty Earth Observation, USA – changes in terrestrial water storage
- Surendra Adhikari (JPL)
- Lauren Gregoire, University of Leeds, UK - expertise in ice sheet modeling and dynamics
- (ECR) Rene Gassmöller, UC Davis, USA – geodynamic modeling, software development and model data stewardship.
Abstracts and registration
For the meeting, organizers seek contributions related to solid Earth deformation and ice sheet changes in the geologic past. They are particularly interested in abstracts related to better understanding the time- and space- varying rheological nature of the mantle, which might come from GIA, mineral physics, geodesy, or geodynamics, as well as contributions related to past ice sheet behaviour and terrestrial water storage, which might come from ice sheet modeling, glaciology, or hydrology.
Abstracts will be selected on the basis of relevance to the overall topic. Abstract selection will also take into account gender balance, ECR status and participants from low GDP countries.
Abstract submission and registration is now online and closes 15 July. Please submit your abstract through this form.
Abstract selection and a full agenda will be announced on 1 August to allow sufficient time to arrange travel for those who plan to do so. Please also register if you only plan to attend the virtual meeting (whether you plan to present or not).
Organizers are still finalizing the registration fee, but it will likely be in the order of $50 (to cover food and some transportation) and will only apply to in-person participants. More information to follow.
Financial support
PAGES had originally provided some financial support for the attendance of 10 ECRs or scientists from developing countries. See the abstract form (link above) for all details.
Organizers particularly encourage participation of early-career researchers (ECR) and researchers who join from developing countries (DC).
Background
The second phase of PALSEA from 2013-2018 was instrumental in identifying many of the challenges in firmly constraining past sea-level changes. The current, third phase of PALSEA (2019-2021) seeks to target these challenges to help overcome them.
The first workshop of this phase in 2019 focused on ecological and chronological considerations critical to accurately interpreting proxy records of paleo sea level.
In 2020 we held a virtual two day meeting to connect the paleo sea level community and share and discuss new results.
The 2021 workshop will probe the latest understanding of the ice-sheet and solid-Earth processes driving the sea-level changes encoded in these proxy records.
We plan a final workshop in 2022 that integrates these advances to improve estimates of past rates and magnitudes of sea-level change, and explores how they can be used to validate coupled models used for future projections.
Further information
Contact meeting organizer Jacqueline Austermann, Columbia University, Lamont-Doherty Earth Observatory: jackya@ldeo.columbia.edu
For more information, such as accommodation recommendations and speaker profiles, go to the official workshop website: https://palseagroup.weebly.com/2021-meeting.html