WRRC Seminar
November 21, 3:00pm - 4:15pmMānoa Campus, POST 126
Modeling specific groundwater problems in Hawaii: Borehole flow and groundwater inundation
Two specific problems involving localized groundwater flow processes are presented as examples of groundwater models at different scales and different approximations: Vertical flow of groundwater through monitor wells and increased coastal flooding from groundwater-table rise with sea level.
The Pearl Harbor aquifer in southern Oahu is one of the most important sources of freshwater in Hawaii. Salinity profiles collected from uncased deep monitor wells (DMWs) commonly are used to monitor freshwater-lens thickness. However, vertical flow in DMWs can cause the measured salinity to differ from salinity in the adjacent aquifer. Substantial borehole flow and displacement of salinity in DMWs over several hundred feet have been observed in the Pearl Harbor aquifer. A numerical modeling approach incorporated hydraulic characteristics and flux rates representative of the Pearl Harbor aquifer. Borehole flow caused by vertical hydraulic gradients associated with both the natural regional flow system and groundwater withdrawals was simulated. Model results indicate that, with all other factors being equal, greater withdrawal rates, closer withdrawal locations, or higher hydraulic conductivity of the well cause greater borehole flow and displacement of salinity in the well. Borehole flow caused by the natural groundwater-flow system is five orders of magnitude greater than vertical flow in a homogeneous aquifer.
In the wake of climate change, sea-level rise will impact many coastal areas in Hawaii. Global mean sea level may rise about 1 ft by 2050 and 3 ft by 2100, and cause substantial coastal erosion and flooding. However, it is widely unrecognized that low- lying coastal areas may also be vulnerable to groundwater inundation, which is flooding due to a rise of the groundwater table with sea level. Vulnerability to groundwater inundation in southern Oahu was assessed and results indicate that 0.6 m of potential sea level rise causes significant flooding. In fact, the flooded area considering groundwater inundation more than doubles previous predictions of flooding with future sea-level rise. Groundwater inundation has wide-reaching consequences for decision- makers, resource managers and urban planners, and requires a revised approach to adapt to climate change.
Event Sponsor
Water Resources Research Center, Mānoa Campus
More Information
Philip Moravcik, 808-956-3097, morav@hawaii.edu
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12:00pm |
The Crucial Role of Regional Governments in National Constitutional Developmen Mānoa Campus, Moore Hall
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12:00pm |
Book Talk - Ben Hecht: Iconoclastic Writer and Militant Zionist Mānoa Campus, Hamilton Library - Room 306
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12:00pm |
"Weaving Our Stories: Return To Belonging Anthology Reading" many Authors Mānoa Campus, Online
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2:00pm |
GPA Program: Grad School 101 Series Mānoa Campus, Queen Liliuokalani Center for Student Services, Rm. 411
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2:30pm |
Study Abroad Info Session - Semester in Seville, Spain Mānoa Campus, Moore 155A
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3:00pm |
International Education Careers: Nothing Adventured, Nothing Attained Mānoa Campus, Online
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3:30pm |
ORE Seminar: Dynamic Behavior of Materials in Extreme Conditions Mānoa Campus, Holmes Hall 243
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3:30pm |
Seminar in Atmospheric Sciences Mānoa Campus, MSB 100 (Marine Sciences Building)
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4:00pm |
Early Acceptance Programs Mānoa Campus, Online/via Zoom
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6:00pm |
BCM O'ahu Midweek BBQ Mānoa Campus, 2042 Vancouver Dr
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6:30pm |
Panhellenic Fair Mānoa Campus, Campus Center Ballroom
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Thursday, September 19 |
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9:00am |
Community Dialogues, “Reframing the Ivory Tower” with Emma Hsu Mānoa Campus, Agricultural Engineering Institute, Room 114
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10:30am |
Community Dialogues, “Reframing the Ivory Tower” with Emma Hsu Mānoa Campus, Online
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12:00pm |
Brown Bag Biography: Panel on Puana, the new hana keaka production Mānoa Campus, Kuykendall 410 & Online (Livestream)
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1:30pm |
Study Abroad Info Session - Semester in Seville, Spain Mānoa Campus, Moore 155A
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3:30pm |
Study Abroad Info Session - Semester in Shanghai, China Mānoa Campus, Moore 155A or Zoom
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4:00pm |
Make & Take: Wristlet Keychaiin Mānoa Campus, Walter Dods,Jr. RISE Center, Level 2
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5:00pm |
UH Law School Part-Time Online JD Flex Webinar Zoom
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5:00pm |
ʻIE HOLO Ē Mānoa Campus, Hawaiian and Pacific Collections Reading Room, 5th Floor, Hamilton Library, 2550 McCarthy Mall
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Friday, September 20 |
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8:30am |
Virtual Writing Room Mānoa Campus, Online
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12:00pm |
Stories & Pitches with UH’s Leading Entrepreneurs Mānoa Campus, Walter Dods, Jr. RISE Center, Level 2
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12:00pm |
Study Abroad Info Session - Semester in "Two Italies," Italy Mānoa Campus, Zoom
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1:00pm |
Fall 2024 Engineering Career Expo Mānoa Campus, Campus Center Ballroom and surrounding facilities
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Monday, September 23 |
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12:00am |
Kalo Grant Round 1 Deadline Mānoa Campus, Walter Dods,Jr. RISE Center, Level 2
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8:00am |
Psychology Final Oral Mānoa Campus, Zoom: https://zoom.us/j/93947840368?pwd=6bhxr7blFchPXh6mdRVUtod4cLNqD5.1
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9:00am |
Hawaii Natural Energy Institute (HNEI) Seminar Mānoa Campus, POST 121
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1:30pm |
Virtual Writing Room Mānoa Campus, Online
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1:30pm |
Virtual Writing Room Mānoa Campus, Online
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2:30pm |
Study Abroad Info Session - Semester in Shanghai, China Mānoa Campus, Moore 155A or Zoom
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4:00pm |
Paying for Law School Mānoa Campus, Online via Zoom
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4:00pm |
Lecture - Destroying Jewish Life and Culture Mānoa Campus, Hamilton Library - Room 301
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4:00pm |
Study Abroad Info Session - Semester in London, England Mānoa Campus, Zoom
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Tuesday, September 24 |
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10:00am |
Campus & Community Resource Fair- Celebrating our Pregnant & Parenting Student Mānoa Campus, UHM Campus Center Courtyard
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11:00am |
Hawaii Natural Energy Institute (HNEI) Seminar Mānoa Campus, POST 121
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11:00am |
Pili i ke Kanaka with Dr. Sakaria Laisene Aulelua-Toomey Mānoa Campus, Dean Hall 6/7 ACCESS Lounge/Zoom
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3:00pm |
Study Abroad Info Session - Semester in Adelaide, Australia Mānoa Campus, Moore 155A
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4:30pm |
Entrepreneurship Live with Rocket Ahuna Mānoa Campus, Walter Dods,Jr. RISE Center, Level 2
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7:00pm |
Ohana Night Mānoa Campus, Kuy 101
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Wednesday, September 25 |
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8:00am |
Truman Scholarship Virtual Open House Mānoa Campus, via Zoom
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10:30am |
Qualify for SNAP (aka Food Stamps) at UHM Campus Center Mānoa Campus, UHM Campus Center Courtyard
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12:00pm |
Introduction to Zotero Mānoa Campus, Kuykendall 106 Events Room
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2:00pm |
Introducing Hamilton Library to Undergraduates: Why Google Sucks, Searching On Mānoa Campus, Hamilton Library
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4:00pm |
Health Professionals Panel Mānoa Campus, Online/via Zoom
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5:00pm |
Talk Story with Tech Professionals Mānoa Campus, Walter Dods Jr RISE Center
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6:00pm |
BCM O'ahu Midweek BBQ Mānoa Campus, 2042 Vancouver Dr
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Thursday, September 26 |
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9:00am |
Community Dialogues, “Wellness Strategy” with Yumi Saito Mānoa Campus, Agricultural Engineering Institute, Room 114
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9:00am |
DSS "Deep Dives" Professional Development Series Mānoa Campus, 2400 Campus Road, QLCSS 409
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10:00am |
PUEO PILINA West Oʻahu Campus, Campus Courtyard
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10:30am |
Community Dialogues, “Wellness Strategy” with Yumi Saito Mānoa Campus, Online
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10:30am |
Hawaii Natural Energy Institute (HNEI) Seminar Mānoa Campus, POST 121
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12:00pm |
Welcome to Your Campus Sensory Room: Mānoa Campus, Kuykendall 106 Events Room
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3:00pm |
Thus Spoke: Kim Hyesoon, Fi Jae Lee, Jack Jung Mānoa Campus, Center for Korean Studies
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Friday, September 27 |
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8:30am |
Virtual Writing Room Mānoa Campus, Online
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9:00am |
Campus Blood Drive Mānoa Campus, Campus Center Executive Dining Room
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10:00am |
Love Life Event Mānoa Campus, Campus Center Courtyard
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12:00pm |
Study Abroad Info Session - Semester in Florence, Italy Mānoa Campus, Moore 155A
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3:00pm |
Political Science Final Oral Mānoa Campus, Saunders 624
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4:00pm |
Study in Barcelona Informational Sessions Mānoa Campus, College of Education, Wist Hall, room 233
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5:00pm |
Pre-Health Undergraduate Mentoring Program Info Session Mānoa Campus, CC308 (Campus Center)
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7:30pm |
Puana Mānoa Campus, UHM Kennedy Theatre
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7:30pm |
Honolulu Chamber Music Series – Iggy Jang’s Tango Extravaganza! Mānoa Campus, Orvis Auditorium
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Saturday, September 28 |
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7:30pm |
Puana Mānoa Campus, UHM Kennedy Theatre
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Monday, September 30 |
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9:00am |
Campus Sensory Room Day Mānoa Campus, Kuykendall 106 Events Room
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11:00am |
Study Abroad Info Session - Semester in Paris, France Mānoa Campus, Zoom
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1:30pm |
Virtual Writing Room Mānoa Campus, Online
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4:00pm |
Richardson School of Law Tour Mānoa Campus, In-Person Location: TBD
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