Please use this identifier to cite or link to this item: http://hdl.handle.net/10125/44553

Modeling Sediment Inputs to Maunalua Bay

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Short_Article_Sediment_Pollutes.pdfShort Article673.56 kBAdobe PDFView/Open
Knowledge_Domain.pdfKnowledge Domain421.53 kBAdobe PDFView/Open
Community_Presentation.pdfCommunity Presentation1.56 MBAdobe PDFView/Open
Outreach_Flyer.pdfOutreach Flyer524.58 kBAdobe PDFView/Open
Biophysical Table - Sediment - 2.txt.xmlModel Input - Biophysical Table822 BXMLView/Open
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rainfallerosivity.tifModel Input - Rainfall Erosivity86.04 MBTIFFView/Open
dem.tifModel Input - Digital Elevation Model86.04 MBTIFFView/Open
lulc_mb20111.tifModel Input - Land Use/Cover21.52 MBTIFFView/Open
MB_Watersheds_Complete_Polyg1.tifModel Input - Watersheds Outline128.6 kBTIFFView/Open
soilerodibility.tifModel Input - Soil Erodibility86.04 MBTIFFView/Open
Nutrient_Delivery_Ratio_Model_Input_Screenshot.JPGModel Input - Calibration Metrics97.87 kBJPEGView/Open
inc_251.tifModel Input - Climate Scenario +25%86.03 MBTIFFView/Open
dec_251.tifModel Input - Climate Scenario -25%86.03 MBTIFFView/Open
dec_101.tifModel Input - Climate Scenario -10%86.03 MBTIFFView/Open
inc_101.tifModel Input - Climate Scenario +10%86.03 MBTIFFView/Open
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Item Summary

Title: Modeling Sediment Inputs to Maunalua Bay
Authors: Antaky, Carmen
Payne, Courtney
Langston, Blaire
Harrison, Tanya
Martin, Brendan
Instructor: Oleson, Kirsten
Crow, Susan
Keywords: Sediment Delivery Model
InVEST
Maunalua Bay
Hawaii--Oahu
Issue Date: 03 May 2017
Abstract: Mālama Maunalua identified polluted runoff and sediment as the number one threat to Maunalua Bay. Sediment is one of the primary land-based threats to corals and other marine organisms because it decreases light availability, smothers coral and alters habitats. Rain runoff transports sediment through streams and into the bay. In Maunalua Bay, runoff is high due to increased human populations and stream channelization. This stream channelization causes water to move downstream at a faster than normal rate and increases the amount of sediment. We review some options for homeowners to mitigate the amount of sediment reaching the streams. To create effective management solutions for sediment pollution in the bay, we modeled the current sediment exports. We analyzed the contributions of each watershed and correlations with land use type. We found that most sediment is retained in the upper part of the watershed in forested areas, and that most outputs come from Waialaenui and Wailupe. We suggest that any stream restoration activities should focus on the Waialaenui and Wailupe as this will have the most drastic effect on sediment loads.
URI/DOI: http://hdl.handle.net/10125/44553
Appears in Collections:2017 Maunalua Bay Case Study



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