=?Windows-1252?Q?COMET+_Webinar:_Assoc._Prof._Dar=EDo_Solano, _Universidad?= =?Windows-1252?Q?_Nacional_Aut=F3noma_de_M=E9xico, _Wed_3rd_November, _4PM_?= UK time

Chris Rollins c.rollins at gns.cri.nz
Mon Nov 1 23:27:44 UTC 2021


Dear Colleagues,

COMET (The Centre for Observation and Modelling of Earthquakes, Volcanoes, and Tectonics) invites you to the next instalment of our COMET+ webinar series, viewable from the home office.

Geohazard assessment of Mexico City’s Metro System from SAR interferometry observations
Wednesday 3rd November 2021 4pm UK time (11am Mexico City / 5pm CEST / 9am PDT)

Associate Professor Darío Solano
Universidad Nacional Autónoma de México, Mexico

Please register at: https://universityofleeds.zoom.us/webinar/register/WN_QTIr5ZWbRQ68M7SDw-sCJQ

(After registering, you will receive a confirmation email containing information on how to join the webinar)

Abstract:
Land subsidence rates in Mexico City reach 500 mm/yr, causing progressive damage to the city’s buildings and core infrastructure, including the Metro system. Using satellite radar interferometry observations combined with linear gradient and differential displacements analyses, we assess the vulnerability of the Metro system’s street-level and elevated segments to differential land subsidence. Our results reveal that high subsidence velocity gradients occur over sharp transitional zones between stable and fast-subsiding areas, reaching levels approaching resulting in terrain slope changes. Additional geohazard occurs due to differential settlements between columns, adversely affecting the structural stability and reducing the service life of the Metro’s elevated overpasses.


The COMET+ webinar series promotes research by collaborators of COMET scientists. We aim to provide a platform for these researchers to showcase their work to large and international audiences, opening doors to broader collaborative networks and enhancing the community’s diversity of backgrounds and ideas.


Catch up on past COMET and COMET+ webinars on our YouTube page: https://www.youtube.com/channel/UCtFDytX1hgjvlS4NH48M2oQ/videos


Best wishes,
Tamarah King & Chris Rollins

COMET - Centre for the Observation and Modelling of Earthquakes, Volcanoes and Tectonics
https://comet.nerc.ac.uk/
@NERC_COMET
Notice: This email and any attachments are confidential and may not be used, published or redistributed without the prior written consent of the Institute of Geological and Nuclear Sciences Limited (GNS Science). If received in error please destroy and immediately notify GNS Science. Do not copy or disclose the contents.
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