Sedimentation and survival of the Mekong Delta: A case study of decreased sediment supply and accelerating rates of relative sea level rise

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dc.contributor.authorAllison, Mead A.en_NZ
dc.contributor.authorNittrouer, Charles A.en_NZ
dc.contributor.authorOgston, Andrea S.en_NZ
dc.contributor.authorMullarney, Julia C.en_NZ
dc.contributor.authorNguyen, Thanh T.en_NZ
dc.date.accessioned2017-08-29T22:09:20Z
dc.date.available2017en_NZ
dc.date.available2017-08-29T22:09:20Z
dc.date.issued2017en_NZ
dc.description.abstractThe Mekong Delta, early in the twenty-first century, is at a tipping point for sustainability. The delta is threatened by the implications of (1) damming and land-use changes in the drainage basin, (2) a burgeoning delta population in a nation (Vietnam) undergoing rapid development, (3) accelerating rates of rising sea level, and (4) an uncertain future climate that may impact tropical-cyclone frequency and monsoonal precipitation patterns in the basin. These threats are present in other great rivers that emerge from the Himalayas. Two primary threats are examined in light of recent joint Vietnam-US studies in the largest distributary (Song Hau) of the Mekong River, in the shore-fringing mangroves, and on the adjacent subaqueous delta. We consider the implications of declining sediment loads from the catchment (as well as modification of the annual hydrograph) and flooding and salinity intrusion associated with relative sea level rise (eustatic + subsidence). This 2014–2015 study shows the interconnectivity in fluvial sediment supply to these parts of the delta: declining sediment loads and rising sea levels will likely impact distributary channel morphology and will alter estuarine circulation and sediment-trapping efficiency, all of which have feedbacks on sediment provision to the mangrove forests and the shelf.en_NZ
dc.format.mimetypeapplication/pdf
dc.identifier.citationAllison, M. A., Nittrouer, C. A., Ogston, A. S., Mullarney, J. C., & Nguyen, T. T. (2017). Sedimentation and survival of the Mekong Delta: A case study of decreased sediment supply and accelerating rates of relative sea level rise. Oceanography, 30(3), 98–109. https://doi.org/10.5670/oceanog.2017.318en
dc.identifier.doi10.5670/oceanog.2017.318
dc.identifier.issn1042-8275en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/11293
dc.language.isoen
dc.publisherThe Oceanography Society (TOS)en_NZ
dc.relation.isPartOfOceanographyen_NZ
dc.rightsThis article is published in the Oceanography. © 2017 The Oceanography Society (TOS).
dc.titleSedimentation and survival of the Mekong Delta: A case study of decreased sediment supply and accelerating rates of relative sea level riseen_NZ
dc.typeJournal Article
pubs.begin-page98
pubs.elements-id195294
pubs.end-page109
pubs.issue3en_NZ
pubs.notesQA: http://tos.org/oceanography/. Version online (as of 6.7.17), September 2017, is an 'uncorrected proof'.en_NZ
pubs.organisational-group/Waikato
pubs.organisational-group/Waikato/2018 PBRF
pubs.organisational-group/Waikato/FSEN
pubs.organisational-group/Waikato/FSEN/2018 PBRF - FSEN
pubs.organisational-group/Waikato/FSEN/School of Science
pubs.organisational-group/Waikato/FSEN/School of Science/2018 PBRF - School of Science
pubs.user.infoMullarney, Julia (juliam@waikato.ac.nz)
pubs.volume30en_NZ
uow.verification.statusverified
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