RCEM 2019CONFERENCE HANDBOOK

AUCKLAND, NEW ZEALAND16TH–21ST NOVEMBER 2019

11TH RIVER, COASTAL & ESTUARINE MORPHODYNAMICS SYMPOSIUM

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Thank you to all our sponsors. This conference is made possible only through the commitment of many individuals and groups.

SILVER SPONSORS

BRONZE SPONSORS

EXHIBITORS

SPONSORS

Supporting Sponsor Icebreaker Sponsor Pad/Pen Sponsor

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TABLE OF CONTENTS

Welcome 5

General Information 6–7

Auckland City Map 8• Conference Venue

Conference Venue Floor Plans 9• Emergency Information

Pre-Conference Workshops 10–11• Workshops Venue

Māori Welcome 12

Social Functions 13–14• Welcome Function• Icebreaker Function• Informal Student Gathering• Conference Dinner

Field Trip 15

Post-Conference Field Trip 16–17

Programme 20–28

Poster Sessions 29–34

Keynote Speakers 36–40

Delegate List 42–47

Notes 48–49

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Anthropocene CoastsWaived article processing charges until December 31, 2020cdnsciencepub.com/anc

An open access interdisciplinary journal reporting new research related to coastal regions in the Anthropocene.Anthropocene Coasts is an innovative international partnership journal, jointly developed and co-owned by Canadian Science Publishing and East China Normal University.

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Kia ora and welcome to the 11th River, Coastal and Estuarine Morphodynamics Symposium – RCEM 2019. This year RCEM comes for the first time to Aotearoa, New Zealand, land of the long white cloud.The International Association for Hydro-Environment Engineering and Research (IAHR) and the Engineering New Zealand/Water New Zealand Rivers Group are proud to support hosting of the conference in Auckland from 16-21 November. 2019 promises to be a unique and memorable event, as the River, Coastal and Estuarine Morphodynamics Community celebrates its 20th year anniversary.

Celebrating 20 years, the theme of the Conference is “Ka mua, ka muri: Looking back, moving forward”, and the programme includes plenary speaker presentations as well as 23 sessions, poster displays, a diverse array of exhibits, networking functions, and field trips that showcase Auckland’s and New Zealand’s unique natural environments and attractions.

New Zealand is home to some of the most spectacular water-shaped morphodynamic locations worldwide. The Conference is held in early summer in the city of Auckland, within walking distance of the CBD, museum, art gallery, parks and the Waitemata waterfront. Explore an urban environment where everyone lives within half an hour of beautiful beaches, hiking trails and a dozen enchanted holiday islands including Waiheke and Great Barrier Islands. Auckland is boasting three harbours, two mountain ranges, 48 volcanic cones and more than 50 islands. We hope you have time to explore some of New Zealand outside of the conference schedule.

We are looking forward to a hui of mingling, learning, sharing and discussing, and wish everyone fun times exploring the beautiful sights of Auckland! Nau mai haere mai!

RCEM Local Organising Committee Heide Friedrich (Chair)University of Auckland, Auckland

Giovanni CocoUniversity of Auckland, Auckland

Karin BryanUniversity of Waikato, Hamilton

Jon TunnicliffeUniversity of Auckland, Auckland

Julia MullarneyUniversity of Waikato, Hamilton

Jo HoyleNIWA, Christchurch

Kyle ChristensenChristensen Consulting, Wellington

Tumanako Fa'auiUniversity of Auckland, Auckland

James BrasingtonUniversity of Waikato, Hamilton

Ian FullerMassey University, Palmerston North

Edwin BaynesUniversity of Auckland, Auckland

Renske Terwisscha van Scheltinga University of Auckland, Auckland

WELCOME

Anthropocene CoastsWaived article processing charges until December 31, 2020cdnsciencepub.com/anc

An open access interdisciplinary journal reporting new research related to coastal regions in the Anthropocene.Anthropocene Coasts is an innovative international partnership journal, jointly developed and co-owned by Canadian Science Publishing and East China Normal University.

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GENERAL INFORMATION

Registration DeskIf you require any assistance throughout the conference please see the conference organisers at the Registration Desk in the Exhibition area.

InternetSSID: AUT WiFi Login ID: guest@conf Password: 42027362

Please Note: AUT's security settings for their Wifi network will supersede your own organisations settings. We strongly suggest that you check with your IT department and make the necessary setting changes before using AUT's WiFi network.

Failure to do this may result in your device not being able to connect to AUT's Wifi network.

Name TagsDelegates are requested to wear their name tags to all sessions and social functions. Delegates have blue lanyards, committee members have red lanyards and student helpers are wearing purple t-shirts. Please ask the committee or student helpers for directions or local knowledge if required.

On the back of your name tag – the coloured dots indicate what you are registered to attend.

Cell PhonesPlease ensure that cell phones are turned off, or on silent, during all presentations.

ParkingThere is no car parking at AUT. You can park in Wilsons Car Park at 56 Wakefield Street. Civic Car Park is located at the corner of Greys Ave and Mayoral Drive and there is additional parking on Symonds Street if needed.

Social MediaWe welcome you to use #RCEM2019 across social media platforms.

No SmokingThere is no smoking allowed inside the venue.

Contact NumberFor assistance during the conference please call Shelley from On-Cue Conferences on 021 403 316

Public TransportYou can use public transport in Auckland by paying with cash or by purchasing an AT HOP card. The AT HOP card is a prepay card for travel on buses, trains and ferries around Auckland. The AT HOP card enables you to save money on fares – at least 20% discount off single trip cash fares (excludes NiteRider and SkyBus services and Waiheke ferry services).

For more information about the AT HOP cad and public transport options, visit at.govt.nz/bus-train-ferry.

TaxisAuckland Co-op Taxi

Phone: 09 300 3000

The Auckland airport is approximately 40 minutes’ drive from the Auckland University of Technology.

CateringAll catering will be in the exhibition area.

If you have advised us of your special dietary requirements, these have been forwarded to the caterers and will be available on a separate table individually marked.

At the Conference Dinner, please make yourself known to the wait staff and they will make the necessary arrangements for your special meal.

If you have any dietary requirements that we are not aware of, please see the Conference Organisers at the Registration Desk on arrival at the conference.

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GENERAL INFORMATION

Loading PresentationsPlease take your presentation on a USB stick to the room you are presenting in – this should be done at the start of the day that you are scheduled to present on.

Poster PresentationsPosters must be displayed before 10:00am on the day you are presenting. Please ensure your poster is taken down at the end of the day. Poster boards are in the Exhibition and catering area. Velcro dots will be provided. Please ensure you are at the poster session by 1:45pm on the day you are presenting, please check the conference programme so you are aware of when you will be presenting your poster.

Session ChairsPlease can all session chairs be in their room at least 10 minutes prior to the start of the session. Please familiarise yourself with the AV equipment. If you have any questions, locate the student helper or AV technician, who will be close by. It is very important that presentations do not run over their allocated time so please ensure presenters start and finish on time. If people want to move rooms during sessions they should do so at the start of the 3-minute question/discussion part of the presentation. Please check in with the registration desk before your session to check if there are any conference announcements.

ExhibitorsDon't forget to visit and chat with the exhibitors, located in the catering area.

MEDICAL INFORMATIONAuckland Doctors & Medical CentresCaring Clinic Doctors Phone: 09 222 2577 Location: Floor 8/175 Queen St, Auckland

Queen Street Doctors Phone: 09 373 4055 Location: 87 Queen St, Auckland

Chemist/PharmacyUnichem Pharmacy Phone: 09 375 1537 Location: 280 Queen St, Auckland

New Zealand Emergency ServicesAmbulance, Fire and Police. Dial 111 from any public, private telephone or mobile phone in New Zealand.

Auckland PolicePhone 09 302 6400 The police station is located at 13–15 College Hill, Freemans Bay, Auckland

Auckland HospitalPhone 09 367 0000 The hospital is located at 2 Park Rd, Grafton, Auckland

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AUCKLAND CITY MAP

Conference DinnerThe Maritime Room, Princes Wharf, Viaduct Harbour, Auckland

Ferry Terminal99 Quay St, Auckland (field trip departure meeting point)

Pre-Conference WorkshopsBldg 303, The University of Auckland, 38 Princess Street, Auckland

Welcome FunctionFale Pasifika, 20–26 Wynyard Street, City Campus, University of Auckland

CONFERENCE VENUEAuckland University of Technology (AUT), 55 Wellesley St E, AucklandWA/WG BuildingMain entrance: Gate 3 via Wellesley Street East

Welcome Function

Pre-Conference Workshops

Conference Dinner

Conference Venue

Ferry Terminal

Wakefield St

Wellesley St East

Prince

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May

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GATE

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GATE

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Conference Venue

Main Entrance

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CONFERENCE VENUE FLOOR PLANS

LEVEL 1 &2

LEVEL 4

EMERGENCY INFORMATION—EVACUATION• Fire Alarm: loud whoop whoop noise• Leave your work area immediately• Follow the green illuminated EXIT signs• Proceed to the nearest assembly point –Governor

Fitzroy Plaza or WH Plaza

• Follow the instructions given by the Security Wardens

• Remain at the assembly point until the all clear is announced by the Security Wardens

Resume normal routine once all clear is received

Registration Desk

WA224

WG404

WG126

Exhibition, Catering & Posters

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PRE-CONFERENCE WORKSHOPS

This year we will be offering two pre-conference workshops, these will be held concurrently on Saturday 16 & Sunday 17 November at Auckland University.

WORKSHOP ONEExploring Morphodynamic Systems with CSDMS Modeling Tools Instructors: Katy Barnhart (University of Colorado), Eric Hutton (University of Colorado) and Greg Tucker (University of Colorado)

Saturday 16 November 9:00am–4:30pm & Sunday 17 November 9:00am–4:30pmLocation: Room G14, Bldg 303, The University of Auckland, 38 Princess Street, Auckland

This workshop provides a hands-on introduction to CSDMS models and tools, focusing on the new Python Modeling Tool (PyMT) and Landlab.

PyMT is an Open Source Python package, developed by the Community Surface Dynamics Modeling System, that provides tools used to couple models that provide a standard set of control functions (the Basic Model Interface, or BMI). PyMT is:

• A toolbox for coupling models of disparate time and space scales• A collection of Earth-surface models• An extensible plug-in framework for user-contributed models

What to bring: We highly recommend that clinic attendees come with a laptop with the Anaconda Python distribution installed.

WORKSHOP TWOAnalysing Topographic Time Series: Geomorphic Change DetectionInstructors: James Brasington (University of Waikato), Joe Wheaton (Utah State) and Philip Bailey (North Arrow Research)

Saturday 16 November 9:00am–4:30pm & Sunday 17 November 9:00am–4:30pmLocation: Room G15, Bldg 303, The University of Auckland, 38 Princess Street, Auckland

Rapid advances in remote sensing and survey technologies now enable the acquisition of distributed topographic and bathymetric data at high spatial resolution and precision and over increasingly wide geographic extents. These new datasets offer unparalleled opportunities to quantify landscape change directly, providing insights into sediment transfer processes and the associated morphological evolution of river, coastal and estuarine landforms.

What to bring: A laptop with ArcGIS v.10.4 or later.

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PRE-CONFERENCE WORKSHOPS

WORKSHOPS VENUEThe University of Auckland Building B303 Rooms G14 & G15Address: Bldg 303, The University of Auckland, 38 Princess Street, Auckland

InternetSelect the wireless: UoA-Guest-WiFi Enter the username: rcem@wifi.com Enter the password: ymrcQpPD

By logging onto the guest wireless you are accepting the IT Acceptable User Policy.

NEW ZEALAND’S EXPERTS ON CLIMATE FRESHWATER & OCEAN SCIENCEGuiding our future

Princes Street

Symonds Street

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MĀORI WELCOME—MONDAY, 18 NOV

Venue: Auckland University of Technology (Conference venue)

8:00am People ushered into auditorium

8:10am Mihi whakatau (Not a pōwhiri, as not in marae – speech acknowledging those present at a gathering)

Opening welcoming speech from hosts (In Māori) (5 mins)

Welcoming speech in English Also explaining the tikanga (protocols), history of the local area and traditional sites (10 mins)

Everyone is instructed to stand for the waiata tautoko (supporting song) to be sung by everyone: (2 mins)

Te Aroha: Te aroha, Love, Te Whakapono, Faith, Me te Rangimarie, And Peace, Tātou tātou ē Be amongst us all

www.youtube.com/watch?v=uefJdSCkzPo

Concluding remarks (3 mins)

Hariru/Hongi Hosts (including RCEM committee) to exchange with guests (will limit to front row, and anyone else that wishes to participate) in hongi (pressing of noses, and exchanging of mauri [life force]) (5-10 min)

8:55am Karakia (Blessing of food for morning tea)

9:00am Morning tea

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For those delegates that have registered to attend the following social functions, please see below for more details.If you have not registered, but are interested in attending, please see the On-Cue team at the registration desk.

WELCOME FUNCTIONWelcome to Auckland! This function will be a chance to meet and mingle with your fellow delegates before the RCEM Conference starts.

Sunday 17 November, 6:30pm–8:00pmVenue: Fale Pasifika

Address: 20–26 Wynyard Street, City Campus, University of Auckland

Included in your ticket: Canapes & Beverages

Dress code: Casual

SOCIAL FUNCTIONS

Conference Venue

Welcome Function

ICEBREAKER FUNCTIONDay One concludes with this social function held on-site at the Conference Venue in the Exhibition Area. The evening Icebreaker is kindly sponsored by Anthropocene Coasts.

Monday 18 November, 6:30pm–8:00pmVenue: Auckland University of Technology (Conference Venue), Exhibition Area

Address: 55 Wellesley St E, Auckland

Included in your ticket: Canapés & Beverages

Dress code: Casual

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CONFERENCE DINNERThe venue for the Gala Dinner is the Maritime Room, located at the Viaduct Harbour with spectacular views of the inner harbour. This event will include the awarding of prizes from the conference competitions.

Wednesday 20 November, 6:30pm–11:00pmVenue: The Maritime Room

Address: The Maritime Room, Princes Wharf, Viaduct Harbour, Auckland

Included in your ticket: Three course menu & Beverages

Dress code: Smart Casual

Dietaries: Delegates with special dietary requirements should make themselves known to the wait staff

Conference Dinner

Conference Venue

SOCIAL FUNCTIONS

INFORMAL STUDENT* GATHERING*Not a student, but like to join? You’re welcome to join us from 9:00pm for drinks and socialising.

How to get there: Up the escalators at Level 2, 204 Quay St, Viaduct Harbour, Auckland.

This event is organised outside of the RCEM Conference program and therefore any consumptions will be at your own expense.

Tuesday 19 Nov, 6:45pm–9:00pm Bowling at Dr. Rudi’s Rooftop Brewing Co.

9:00pm–11:00pm* Drinks and socialising at Dr. Rudi’s Rooftop Brewing Co.

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FIELD TRIP—THURSDAY, 21 NOV

WAITEMATĀ HARBOUR & WAIHEKE ISLANDIf you are registered to attend the field trip, you will find inside your conference name tag, a voucher for your ferry ticket. Please bring this to the conference registration desk to exchange for your ferry ticket. Please note; you must do this prior to Wednesday lunchtime.

This field trip provides a unique opportunity to visit the stunning coastal setting of the Auckland region. It will include a ferry trip through the bays and islands of the Waitematā Harbour, past the looming volcanic presence of Rangitoto before reaching the island of Waiheke, famous for its wineries, rolling hills and pristine beaches. Once on the island, we’ll explore some of the dynamic locations that characterise Waiheke’s environment, and hear from a range of speakers about the local setting and the coastal processes that have helped to shape it.

Sites visited will include:• Matiatia Bay• Oneroa Beach (lunch & swimming spot)• Fishermans Rock point

Thursday 21 November, 8:45am–4:10pmLocation: Waitematā Harbour & Waiheke Island

Address: Delegates are to meet at the Ferry Terminal, 99 Quay St, Auckland at 8:45am

Estimated return time: 4:10pm (Leaving Waiheke Island on the 3:30pm ferry)

Your field trip ticket includes: Ferry transport to and from Waiheke Island, bus transport once on the island, packed lunch with water bottle.

What to bring: Walking shoes, sunscreen, hat and swimming togs and towel (if you wish to swim).

Ferry Terminal

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POST-CONFERENCE FIELD TRIP

The RCEM 2019 post-conference Field Trip will travel by bus (~130 km) from Gisborne and Ruatoria, stopping to see the Waipaoa, Uawa and Waiapu Rivers, as well as observing the coastline and its many secluded bays.

POST-CONFERENCE FIELD TRIP TO THE EAST CAPEGuides: Jon Tunnicliffe (University of Auckland) & Brenda Rosser (GNS)

Friday 22 November—Sunday 24 NovemberLocations: Gisborne and Ruatoria, stopping to see the Waipaoa, Uawa and Waiapu Rivers, as well as observing the coastline and its many secluded bays

New Zealand’s East Cape is renowned for its spectacular natural beauty, its remote setting (well off the beaten tourist path!) and the vibrant Maori culture that pervades the many small towns, both inland and along the coastal track. The area is the traditional rohe, or tribal area, of Ngāti Porou and the Waiapu River features prominently in legend and tradition.

The tour will be partly based in Ruatoria, where we will visit and engage with local experts and community members who work on the rivers and coastline. Locals have been developing a management plan for the nearby Waiapu River, in light of the large sediment loads, and the dynamic behaviour of the lower river reaches.

The Waiapu River is a large, braided system, ranked among the highest-yielding rivers on the planet. We will visit some notable sites of river dynamism, downstream from gully mass-wasting complexes that have induced significant rates of aggradation and feed the braided tributaries of the river.

This trip is fully booked. However, for further details please contact: Jon Tunnicliffe, j.tunnicliffe@auckland.ac.nz, 021 027 8924.

Braid plains of the Tapuaeroa River

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POST-CONFERENCE FIELD TRIP

Visit www.rcem2019.co.nz/post-conference-field-trip for more information about these images

Proposed field trip route. An expedition to the Waipaoa River will be included as well.

Meander bend in the lower Waiapu River, where the river has previously undercut the shoulder of State Highway 35.

ITINERARYFriday 22 November

• Flight from Auckland to Gisborne• Afternoon visit sites on the Waipaoa and Uawa Rivers and other scenic points along

Tairawhiti Coast• Tour of exceptional aggradation sites on the Waiorongomai and Tapuaeroa Rivers• Arrive in Ruatoria; visit with community followed by a meal and a stay in a traditional

marae

Saturday 23 November• Site visits along the Waiapu R. including the lower river• Tour of the river mouth and coastal tract• Meeting with local river action group, discussions on the lower course of the Waiapu• Refreshment and dinner

Sunday 24 November• On the road back to Gisborne, scenic stops along the way• Late afternoon flight back to Auckland

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TUFLOWCatch up with our experts and the TUFLOW developers at our booth and these presenta�ons

Tuesday Poster Session 2 – Bill SymeApplica�on of Quadtree Mesh to a Finite Volume Equa�on Scheme

Wednesday Poster Session 3 – Bill SymeU�lisa�on of Sub-Grid-Scale Bed Eleva�on Data in Gridded 2D SWE Schemes

Wednesday 9:30am – Dr. Greg CollecuttMesh Size Independent Turbulence Closure for the Shallow Water Equa�ons

Wednesday 9:45am – Mitchell SmithSensi�vity of River Flooding to Coastal Bar Morphology

www.tuflow.com

Nortek, now directly servicing Australia and New Zealand

Nortek’s product portfolio ranges from wave measurement systems to single-point turbulence sensors and oceanic current profilers. Our product range covers ocean waves, ocean currents, turbulent flow and subsea navigation.

Nortek Australia 15 Nott Street

Port Melbourne, VIC 3207yarran.crichton@nortekgroup.com

www.nortekgroup.com

Nortek-ad_Australia_A6.indd 1 14.08.2019 12:57

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DAY 1—MONDAY, 18 NOV

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DAY 1—MONDAY, 18 NOV

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DAY 1—MONDAY, 18 NOV

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DAY 2—TUESDAY, 19 NOV

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DAY 2—TUESDAY, 19 NOV

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DAY 2—TUESDAY, 19 NOV

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DAY 3—WEDNESDAY, 20 NOV

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DAY 3—WEDNESDAY, 20 NOV

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DAY 3—WEDNESDAY, 20 NOV

THURSDAY 21 NOVEMBER: Conference Filed Trip. Meet at the Ferry Terminal, at 8:45am (see page 15 for details)

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POSTER SESSION 1—MON, 18 NOV

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POSTER SESSION 1—MON, 18 NOV

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POSTER SESSION 2—TUES, 19 NOV

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POSTER SESSION 2—TUES, 19 NOV

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POSTER SESSION 3—WED, 20 NOV

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POSTER SESSION 3—WED, 20 NOV

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MONDAY—18 NOV, 9:30AM

MURRAY HICKS Principal Scientist for River and Coastal Geomorphology at NIWA, Christchurch, NZMurray Hicks is Principal Scientist for River and Coastal Geomorphology at the National Institute of Water and Atmospheric Research Ltd (NIWA) in Christchurch. With undergraduate honours degrees in geology and civil engineering from Otago and Canterbury Universities, his PhD at the University of California focussed on sediment transport by coastal and river processes. His career since has stayed in the same domain, working mostly at NIWA as a researcher and consultant. With NIWA colleagues and international collaborators, much of this has been devoted to measuring and modelling the morphodynamics of braided rivers and applying results to assessing the effects of water-use schemes, dams, and gravel extraction on river morphology and physical habitat. He has also used coastal sediment budgets, remote-sensing, and morphological models to investigate the effects of changing river sand/gravel yields on the stability of adjacent coasts in the context of rising sea level and changing wave climate. He has also led projects, and trained many others, to measure and analyse the suspended load of New Zealand rivers, producing guidance manuals and national scale GIS models to predict sediment yield.

MCRE–NZ: Morphodynamic Challenges in Braided River Environments of New ZealandThis talk introduces morphodynamics research challenges to assist environmental/engineering issues in New Zealand’s braided rivers, which are becoming increasingly threatened by demands for irrigation water, braidplain conversion to farmland, and extreme events associated with earthquakes and climate change.

With baseflows and groundwater fully allocated, the water demand is now directed at flood-harvesting. Effects include fine-sediment deposition on recessions and long-term morphological change, compounded by interactions with vegetation and wind-blown sediment, with impacts on ecosystems and human values. Key morphodynamic challenges are to detect and predict event-scale and long-term consequences.

Braidplains on range-front alluvial fans are prone to flooding associated with aggradation accelerated by gravel-supply events from earthquakes and floods and by engineered channel confinement. Sustainable management often stalls from a vicious circle of low confidence in predicted river response to high-cost intervention with limited funding. Novel research exploring the interaction of transient morphological events (e.g. avulsions) and confinement on bedload transport efficiency offers a chance to break this impasse.

Most braided rivers enter the sea via “hapua” – elongated lagoons fronted by wave-built barriers with unstable outlets prone to closing. This produces a risky environment, particularly for flooding and fish-migration, sensitive to changes in river regime and wave climate. The morphodynamic challenge is to numerically predict the consequences of changing controls on these 3-d, hybrid river/coastal features.

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TUESDAY—19 NOV, 8:30AM

LAURA J. MOORE The University of North Carolina, USALaura J. Moore is an Associate Professor in the Department of Geological Sciences and the Environment, Ecology and Energy Program at The University of North Carolina at Chapel Hill. Laura's interdisciplinary research program in coastal geomorphology focuses on the response of low-lying coastal environments to climate change. Her recent and ongoing work relies on the merging of numerical and observational approaches to investigate coastal foredune ecomorphodynamics, barrier island response to climate change; couplings among barrier islands, back-barrier marshes and back-barrier bays; large-scale coastline response to changing wave climate; and coupled natural-human coastline dynamics. Laura has been an Investigator at the Virginia Coast Reserve Long-term Ecological Research site in the U.S. since 2008. Recently, she was the lead editor of Barrier Dynamics and Response to Changing Climate published in 2018 by Springer and served as a member of the National Academy of Sciences Committee, Long-term Coastal Zone Dynamics: Interactions and Feedbacks between Natural and Human Processes along the U.S. Gulf Coast.

The Role of Ecomorphodynamic Feedbacks, Landscape Couplings and Natural-Human Dynamics in Determining the Fate of Coastal Barrier Systems Because coastal barriers are low-lying and dynamic landforms, they are especially sensitive to changing environmental conditions. The effectiveness of storms in building elevation and moving a barrier landward as conditions change is largely determined by foredune morphology, which is a product of feedbacks between vegetation and sediment transport processes. For example, the cross-shore and alongshore shape of coastal foredunes is influenced by the distance from the shoreline that vegetation can grow, the lateral and vertical growth rate (and form) of dune-building grasses, and the rate of lateral vegetation growth relative to the rate of shoreline change. Coastal foredune morphology largely determines barrier state (including the possibility for bistable dynamics) and, thus, the degree to which connectivity with back-barrier environments will influence overall barrier system response to changing conditions. Coupled natural-human dynamics also alter ecomorphodynamic processes, barrier morphology, and sediment flux, further influencing the future evolution of developed coastal barrier systems worldwide.

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TUESDAY—19 NOV, 5:00PM

DANIEL PARSONS University of Hull, UKProfessor Dan Parsons leads the Energy and Environment Institute (EEI) at the University of Hull, UK. The EEI gathers together multidisciplinary researchers from across the University to conduct impactful research on the global challenges presented by environmental change and securing a low-carbon energy transition. Dan is an active researcher in areas related to fluvial, estuarine, coastal and deep marine sedimentary environments, exploring responses of these systems to climate and environmental change. He has research interests in anthropogenic disturbances to these systems and determining necessary societal adaptations to mitigate the impact of change – for example understanding how evolving flood risk on large mega-deltas can impact populations and their related livelihoods through to understanding and quantifying and predicting the magnitude of risk and hazard from natural system function.

The Impact of Unsteadiness and Non-stationarity in Riverine and Estuarine Systems: Morphodynamic Response and (In)stability Riverine and tidal flows are inherently non-stationary, varying on a range of timescales. These variations in flows field strength alter a suite of morphodynamic processes. For example, during flow field unsteadiness bedforms change in size and shape over time and in space, altering bed roughness and imparting system hysteresis between flows and form. However, our knowledge of how these bedforms adapt to changing flows remains inadequately understood. Moreover, how these variations, and hysteresis between flow and form, manifest at broader scales and control the morphodynamic evolution of the wider system is also poorly understood.

Herein I will present a mix of laboratory flume experiments, field case studies and numerical experiments to explore some of these relationships and their controls. The result indicate how changes in primary sediment transport mechanisms can dominate how dunes change with unsteady flows and how sediment redistribution over greater spatial scales can also play a significant role. Where substrate sediments are comprised of mixed sand and mud, the results indicate how this can play a first-order control on bedform size and aspect ratios, also altering adaption styles and rates as well as impacting the levels of hysteresis between flow and form.

How this work extends our knowledge on the impact of variable flows on riverine and esturine processes will be discussed and the broader impact and significance of the findings for a wide variety of purposes, such as improving morphodynamic modelling over large spatio-temporal scales, environmental and engineering management, and more reliable flood predictions will also be highlighted.

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WEDNESDAY—20 NOV, 8:30AM

DOUGLAS J. JEROLMACK University of Pennsylvania, USAProfessor Doug Jerolmack’s research focuses on the spatial and temporal evolution of patterns that emerge at the interface of fluid and sediment on Earth and planetary surfaces. His group uses laboratory experiments, combined with field work and theory, to elucidate the minimum number of ingredients that are required to explain physical phenomena. Particular foci include: granular physics of fluid-driven (water and wind) sediment transport; landform dynamics including dunes, river channels, deltas and fans; stochastic and nonlinear transport processes; and landscape response to dynamic boundary conditions such as climate. Doug is currently Professor and Graduate Chair in Earth and Environmental Science, with a secondary appointment in Mechanical Engineering and Applied Mechanics, at University of Pennsylvania, USA. Doug received a B.S. in Environmental Engineering at Drexel University in 2001, PhD in Geophysics from MIT in 2006, and was a postdoctoral researcher at Saint Anthony Falls Lab at University of Minnesota 2006-2007. Doug has been at Penn since 2007.

All Rivers Are Threshold If You Average the Hell out of ThemA laundry list of factors have been proposed to control alluvial river size. Near-universal scaling relations between channel geometry and discharge, however, suggest a common organizing principle. Numerous metaphysical explanations have been advanced. We propose an extension of Parker's original theory for gravel-bed rivers: River geometry adjusts to the threshold fluid entrainment stress of the most resistant material lining the channel. For gravel-bed rivers this is gravel, but for sand-bed rivers this is muddy bank material. This "threshold limiting material" model describes the hydraulic state of natural rivers - so long as we appropriately average over all of the time and space scales of variation in the flow. It is also compatible with dynamics: erosion and deposition associated with meandering represent higher-order variations in fluid stress around the mean state. Thus, we consider the generalized Parker model as a mean field theory for alluvial river geometry, that highlights the importance of the entrainment threshold. Increasing the relative threshold of bank to bed material leads to a proportionate reduction in channel width and increase in channel depth; in this manner, muddy banks encourage sand-bed rivers to adopt a meandering (rather than braided) morphology. All kinds of important implications may be imagined for managing rivers, dealing with climate change, and of course Mars."

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WEDNESDAY—20 NOV, 4:30PM

CATHERINE KNIGHT Writer and Environmental Historian, Manawatu, NZDr Catherine Knight is a writer and environmental historian. She is a Senior Associate at the Institute for Governance and Policy Studies, Victoria University of Wellington and Honorary Research Associate at the School of People, Environment and Planning, Massey University. She has published four books relating to New Zealand’s environmental history, including New Zealand’s Rivers: An environmental history (Canterbury University Press, 2016), which was long-listed for the Ockham New Zealand Book Awards, short-listed for the New Zealand Heritage Book Awards and selected as one of The Listener’s Best Books for 2016. Her other books are: Beyond Manapouri: 50 years of environmental politics in New Zealand (Canterbury University Press), which was a finalist in the New Zealand Heritage Book Awards; Ravaged Beauty: An environmental history of the Manawatu (Dunmore Press), which was the winner of the J.M. Sherrard Award for Regional and Local History; and Wildbore: A photographic legacy (Totara Press). Catherine works as a policy and communications consultant at KHM Consulting, based in the Manawatu.

The Changing Meaning of Rivers in Aotearoa New ZealandIn this talk Dr Catherine Knight will explore how perceptions of rivers in Aotearoa New Zealand has evolved since the country’s settlement by Europeans, two centuries ago. For most of our post-colonial history, rivers have been viewed as something to be controlled and managed – even ‘improved’. But today, rivers are increasingly being recognised as embodying a broad range of values from the ecological to the spiritual – not simply as a ‘channel of water’ that can be exploited for human ends. While much of this evolving understanding stems from the advance in scientific knowledge, much too has its roots in our collective past.

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Acaye Patrick National Water SewarageAhmed Tanjir Saif National Graduate Institute for Policy Studies (GRIPS)Akiyama Koichi Token C.e.e. Consultants Co.,ltdAkoh Ryosuke Okayama UniversityAli Usman University of BremenAndriamboavonjy Mamy Rija Graduate School Of Engineering, Faculty Of Engineering, Hokkaido UniversityArnez Ferrel Kattia Rubi Hokkaido UniversityAshley Tom University of WyomingAshton Andrew Woods Hole Oceanographic InstitutionAzhikodan Gubash Tokyo Metropolitan UniversityBaptist Martin Wageningen Marine ResearchBarnhart Katherine University of ColoradoBateman Allen Barcelona Tech UniversityBaynes Edwin University of AucklandBel Coraline Saint-Venant Hydraulics LaboratoryBell Jon Horizons Regional CouncilBerezowsky Moisés Universidad Nacional Autónoma De México VerduzcoBest James University of Illinois at Urbana ChampaignBeya Jose Hawkes Bay Regional CouncilBiswas Robin K. International Centre For Water Hazard And Risk Management (ICHARM), Public Works Research Institute (PWRI)Blanpain Olivier ShomBlom Astrid Delft University of TechnologyBodewes Bas University Of HullBouvet Ellynn LomcBreda Angelo The University Of NewcastleBridges David Good Earth MattersBrilli Nick Virginia TechBrown Andy Greater Wellington Regional CouncilBrückner Muriel Utrecht UniversityBryan Karin University of WaikatoCalvani Giulio University Of FlorenceCalvete Daniel Universitat Politècnica De CatalunyaCamenen Benoit IrsteaCampbell Graeme Greater Wellington Regional CouncilCampmans Geert University of TwenteCanestrelli Alberto University Of FloridaCaponi Francesco ETH ZürichCarbonari Costanza University Of Florence, ItalyCarniello Luca University of PadovaCarruth David Hawkes Bay Regional CouncilChavarrias Victor DeltaresChen Su-Chin National Chung Hsing UniversityChen Lei Hohai UniversityChen Luying Hohai UniversityChen Xindi Hohai UniversityChen Ching-nuo National Pingtung University Of Science And TechnologyChen Wenlong University of Nottingham

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Chiu Yu Fang National Chung Hsing UniversityChristensen Kyle Christensen Consulting LimitedCoco Giovanni University of AucklandColina Alonso Ana TU Delft & DeltaresCollecutt Greg TUFLOWColombini Marco Università degli Studi di Genova - DICCAConley Will Massey University - GeosciencesConn Selene Tonkin+TaylorConstantinescu George University of Iowa-IIHR EngineeringCook Megan Université De MontpellierCordier Florian Edf R&d LnheCraig Andrew StantecCrichton Yarran NortekCzapiga Matthew Delft University of TechnologyD'alpaos Andrea University of PadovaDarienzo Matteo IrsteaDe Leo Annalisa University Of GenoaDe Ruijsscher Timo Wageningen UniversityDe Ruiter Peter University of Waikatode Vet Lodewijk Delft University of TechnologyDeleplancque Benoit Universty of ToursDent Gary Fluent SolutionsDetert Martin ETH ZürichDias João Miguel University of Aveiro VAT: 501461108Ding Xuelin University of AucklandDoppler Delphine LMFA Lyon UniversityDuka Maurice Tokyo Metropolitan UniversityDutta Som Utah State UniversityEgashira Shinji ICHARM, Public Works Research InstituteEscauriaza Cristian Pontificia Universidad Catolica de ChileFagherazzi Sergio Boston UniversityFalques Albert Universitat Politecnica De Catalunya (upc)Feary James Horizons Regional CouncilFellowes Thomas Macquarie UniversityFernandez Rocio Luz University Of HullFielding Felix AerialSmithsFinotello Alvise University of PadovaFlanagan James Greater Wellington Regional CouncilFrancalanci Simona University of FlorenceFriedrich Heide University of AucklandFrings Roy RWTH Aachen UniversityFuller Ian Massey UniversityGallop Shari University of WaikatoGarcia Marcelo University of Illinois At Urbana-champaignGaurav Kumar Indian Institute Of Science Education And Research BhopalGeng Liang University of PadovaGibson Stanford Hydrologic Engineering Center - Us Corps Of EngineersGoldstein Evan University of North Carolina At Greensboro, Greensboro, Nc, UsaGong Zheng Hohai University

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Grams Paul Us Geological SurveyGrasso Florent IfremerGriffith Giles Tasman District CouncilGriffiths Leigh Environment CanterburyGuest Tristan Dalhousie UniversityGunay Charles John Tokyo Metropolitan UniversityGuo Leicheng East China Normal UniversityHaddadchi Arman National Institute Of Water And Atmospheric ResearchHanssen Jill Tu DelftHarada Daisuke International Centre For Water Hazard And Risk Management (ICHARM), Public Works Research Institute (PWRI)Harries Rebekah CIGIDEN/ University of EdinburghHashiba Masahiro Fukuda Hydrologic CentreHassenruck-gudipati Hima Ut AustinHay Alex Dalhousie UniversityHayakawa Yuichi Hokkaido UniversityHerrling Gerald CAU Kiel UniversityHeslop Ian Environment CanterburyHicks Murray NIWAHikuroa Dan Te Wānanga o Waipapa, University of AucklandHirakawa Ryuichi Maebashi Institute Of TechnologyHiramatsu Yuki Waseda Research Institute For Science And EngineeringHouseago Robert University Of HullHoyle Jo NIWAHughes Harry NortekHung Hsuan-ju National Cheng-kung UniversityHutton Eric CSDMSInami Yu Civil Engineering Research Institute for Cold RegionIshikawa Tadaharu Tokyo Institute of TechnologyIto Yasushi CTI Engineering Co., LtdIto Ayaka Kitami Institute of TechnologyIwantoro Arya Utrecht UniversityJarriel Teresa University of Texas At AustinJerolmack Douglas University of PennsylvaniaJin Chuang University of AucklandJohnson Faith North Carolina State UniversityKami Reddy Venkata Siva Indian Institute Of Technology Madras, India Krishna ReddyKanda Keiichi National Institute Of Technology, Akashi CollegeKang Taeun Kyoto UniversityKästner Karl Wageningen UniversityKirstein Verity Environment CanterburyKnight Catherine Khm Consulting LtdKon Hideto Hokkaido UniversityKuta Laddie E2 Environmental LtdKyuka Tomoko Hokkaido UniversityLangendoen Eddy USDA, ARS, NSLLanzoni Stefano University of PaduaLAPORTE-FAURET Quentin Université De Bordeaux, UMR EPOC 5805Latrubesse Edgardo Earth Observatory of Singapore

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Le Coz Jerome IrsteaLe Guern Jules University of ToursLeach Chloe University of MelbourneLeary Kate UC Santa BarbaraLi Gaoyang The University Of AucklandLiang Min Chih National Chung Hsing UniversityLim Jana Earth Observatory of SingaporeMacmurray Hugh Barnett & Macmurray LtdMaeno Shiro Okayama UniversityMarin-esteve Blanca Gits-upcMarson Will Aerial SmithsMasteller Claire Wash. Univ. in St. Louis / GFZ-PotsdamMasuya Shigekazu Docon Co., Ltd.Mccord Jacqui Morphum EnvironmentalMcelroy Brandon University of WyomingMcNaught Jock Greater Wellington Regional CouncilMeasures Richard NIWAMendoza Alejandro Institute of Engineering, UNAMMeng Changqing Department Of Hydraulic Engineering, Tsinghua UniversityMessina Francesca The Water Institute of GulfMiura Shin CTI Engineering Co., Ltd.Miwa Hiroshi Tottori UniversityMohrig David The University Of Texas At AustinMontano Jennifer University of AucklandMontgomery John University of WaikatoMoore Laura Univerisity of North Carolina at Chapel HillMouradi Rem-sophia Edf R&dMullarney Julia University of WaikatoMurray Brad Duke UniversityNagumo Naoko International Centre For Water Hazard And Risk Management (ICHARM), Public Works Research Institute (PWRI)Nelson Jonathan UsgsNi Jin Anhui and Huaihe Institute of Hydraulic ResearchNienhuis Jacob Utrecht University / Florida State UniversityNishio Junta National Institute of Technology, Akashi CollegeNittrouer Jeff Rice UniversityNittrouer Charles University of WashingtonOkabe Kazunori Hokkaido UniversityOkamoto Yoshihiro Graduated School, Nagoya Unicity, Department of Civil EngineeringOlabarrieta Maitane University Of FloridaOlatunbosun Oladoyin Ade Olonade & CoOrtiz Alejandra Colby CollegeParsons Dan University Of HullPascal Ivan EPFL-LHEPassalacqua Paola University of Texas At AustinPatrylak Alexis Fluent SolutionsPereira Pedro UFSCPerret Emeline IrsteaPeruzzo Paolo University of Padova

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Petrove Natasha Department of ConservationPinto Maria Camden CouncilPivato Mattia University of PadovaPoelman Judith Wageningen University And ResearchPonomareva Anastasia Scott Technical InstrumentsProffit Carl Scott Technical InstrumentsQi Meilan Beijing Jiaotong UniversityRachelly Cristina Vaw, Eth ZurichRahdarian Amin University of WaikatoRavazzolo Diego University of AucklandReef Koen University of TwenteReisenbüchler Markus Technical University of MunichRibo Marta University of AucklandRodrigues Stephane University of ToursRodriguez Jose The University Of NewcastleRosser Brenda GNS ScienceSan Juan Jorge University of Illinois At Urbana-champaignSchippa Leonardo University of FerraraSchuttelaars Henk Delft University of TechnologyShao Dongdong Beijing Normal UniversityShimizu Yasuyuki Hokkaido UniversitySimarro Gonzalo Icm-csicSloff Kees Delft University of TechnologySlowik Marcin Adam Mickiewicz UniversitySmart Graeme NIWASmith Mitchell TUFLOWSomsook Kirana Tokyo Metropolitan UniversitySpreitzer Gabriel University of AucklandStecca Gu NIWAStocchino Alessandro Università Degli Studi Di Genova - DiccaSwales Andrew NIWASyme Bill TUFLOWSyvitski Jaia CSDMSTabesh Mina RWTH Aachen UniversityTanaka Ryuji Okayama UniversityTas Silke Tu DelftTerwisscha Renske The University Of Auckland Van ScheltingaTewolde Meles Siele Delft University of TechnologyTfwala Samkele National Chung Hsing UniversityThazhathe Kalathil Sruthi Indian Institute Of Technology MadrasTinoco Rafael University of IllinoisTognin Davide University of PadovaTownend Ian Univeresity Of SouthamptonTroudet Laura IrsteaTucker Gregory University of ColoradoTunnicliffe Jon The University Of AucklandValentine Kendall Louisiana State UniversityVan Denderen Pepijn University of Twente

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Vázquez Tarrío Daniel ESQ3318001I, University Of Oviedo, IndurotVundavilli Hemanth University of WaikatoWallace Philip DHI Water & EnvironmentWalley Yasmin Queen Mary University Of LondonWang Zheng Bing Delft University of TechnologyWatanabe Yasuharu Kitami Institute of TechnologyWebby Grant Damwatch Engineering LtdWei Xiaoyan National Oceanography Centre (Liverpool)Weisscher Steven Utrecht UniversityWeitbrecht Volker ETH ZürichWest Dave Department of ConservationWhale Ella Horizons Regional CouncilWheeler Nicole HydrobiologyWilcock Peter Utah State UniversityXu Fan East China Normal UniversityXu Beibei Hohai UniversityXu Mengzhen Tsinghua UniversityYamamoto Tamiji Hiroshima UniversityYlla Arbós Clàudia Delft University of TechnologyYorozuya Atsuhiro Pwri, JapanYu Bangyi Anhui and Huaihe Institute of Hydraulic ResearchYuill Brendan The Water Institute of GulfZhang Kaili Hohai UniversityZhang Ying Hohai UniversityZhang Qian Hohai UniversityZhang Boran Zhejiang UniversityZhao Kun Hohai UniversityZhou Zeng Hohai University

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RCEM 2019

THANK YOU FOR ATTENDING

1ST–4TH DECEMBER 2020JOINT CONFERENCE OFNZ HYDROLOGICAL SOCIETYAND NZ RIVERS GROUP

INVERCARGILL NEW ZEALAND

11TH RIVER, COASTAL & ESTUARINEMORPHODYNAMICS SYMPOSIUMAUCKLAND NEW ZEALAND