Print Email Facebook Twitter Modeling suspended sediment discharge from the Waipaoa River system, New Zealand: The last 3000 years Title Modeling suspended sediment discharge from the Waipaoa River system, New Zealand: The last 3000 years Author Kettner, A.J. Gomez, B. Syvitski, J.P.M. Faculty Civil Engineering and Geosciences Department Applied Geology Date 2007-07-12 Abstract HydroTrend, a hydrologic-transport model, is used to simulate the water and suspended sediment discharge of the Waipaoa River system over the last 3 Kyr, a time period in which a well-documented sequence of natural events and anthropogenic activities that profoundly impacted drainage basin processes occurred. Comparisons between observed and simulated data show that the model output replicates the frequency and distribution of flow events and the suspended sediment concentration-discharge relationship, and the long-term trends in suspended sediment discharge are consistent with the sediment record preserved on the middle shelf. Water discharge tracks precipitation, and average annual discharge may have been up to 20% higher and 6% lower at different times in the past. Suspended sediment discharge changed from 2.3 ± 4.5 to 14.9 ± 8.7 Mt yr?1 during the Anthropocene, increasing by 140% after Polynesian arrival, by 350% after European colonization, and by 660% after the catchment headwaters were deforested. To reference this document use: http://resolver.tudelft.nl/uuid:92767d9c-6ca0-4a9a-a60c-f8cc83b5bf83 DOI https://doi.org/10.1029/2006WR005570 Publisher American Geophysical Union ISSN 0043-1397 Source http://europa.agu.org/?view=article&uri=/journals/wr/wr0707/2006WR005570/2006WR005570.xml Source Water Resources Research, 43, 2007 Part of collection Institutional Repository Document type journal article Rights (c) 2007 The Author(s); American Geophysical Union Files PDF Kettner_2007.pdf 1.84 MB Close viewer /islandora/object/uuid:92767d9c-6ca0-4a9a-a60c-f8cc83b5bf83/datastream/OBJ/view