[Blueboard] Talk by Dr. Bayani Cardenas on June 29: “Devastation of aquifers from super typhoon Haiyan’s storm surge"

C. Kendra Gotangco kgotangco at ateneo.edu
Fri Jun 26 14:00:08 PHT 2015

Good day!

The Department of Environmental Science invites you to a talk by Dr. Bayani
Cardenas entitled:

“Devastation of aquifers from super typhoon Haiyan’s storm surge"

on June 29, 4:30pm at Sec C 201.

Bayani Cardenas is an Associate Professor and William T. Stokes Centennial
Teaching Fellow, Department of Geological Sciences, Jackson School of
Geosciences. His area of expertise is Hydrology and Hydrogeology, with
current research programs & projects on Hydrogeology, Surface Water
Hydrology, Fluvial Processes, Applied Hydrogeophysics, Transport Processes.

Below is the abstract and attached is a flyer for the talk.


"The northwest Pacific Ocean is a hot spot for sea level rise and
increasing frequency of stronger storms. It is where super typhoon Haiyan
formed, the strongest storm to hit land, which provided a window into the
hydrologic impacts of an extreme storm. Through detailed documentation of
flood levels, groundwater table elevations and salinity, electrical
resistivity, and modeling, we found that Haiyan’s storm surge reached 7 m
above sea level along Samar Island, Philippines, which led to contamination
of crucial aquifers by infiltrating seawater. A contaminated surficial
aquifer will take years to recover. Groundwater in an underlying deeper
aquifer saw widespread contamination immediately after the storm, but here
salinity has decreased significantly after 8 months. However, this deeper
aquifer remains vulnerable to seawater slowly percolating through the
surficial aquifer. As warmer seas generate more powerful storms, the
vulnerability of aquifers to persistent contamination from intense storm
surges is a growing concern for coastal communities."

“Since growing coastal populations will continue to rely on groundwater for
their needs, strategies for reducing vulnerability to intense storm
surge-caused groundwater contamination and mitigating its effects are

“Below-ground aquifer devastation from storm surge is unseen but need not
be unforeseen.”

*Life is magic, magis and making a difference.*

Charlotte Kendra Gotangco, MEM, Ph.D.
Asst. Professor
Dept. of Environmental Science
Ateneo de Manila University
Loyola Heights, Quezon City, Philippines 1108
Telfax: 632-4264321; Tel: 632-4266001 loc. 5657
Email: kgotangco at ateneo.edu
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