Hydrology of the Hawaiian Islands

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Presentation transcript:

Hydrology of the Hawaiian Islands Colleen Dawes, Energy and Earth Resources November 19, 2013

Hawaiian Islands Freshwater Resources: Precipitation Streamflow Runoff Soil moisture Groundwater aquifers Image: Wikipedia

Elevation Topography Wind Direction Use GIS to explore the natural factors that influence freshwater distribution on Hawaii Project Description

Hawaii’s Topography and Elevation Image: Virginia Tech hokiecurriculum.org Top Left: noaa.gov

Wind Speed and Direction: Hawaii interrupts Pacific patterns

Rainfall Distribution: Influenced by Topography and Wind Elevation Trade Winds Rainfall Distribution: Influenced by Topography and Wind

Rain Shadows Visualized: Vegetative Cover Top left: Climate.gov. Bottom left: ig.utexas.edu Right: clasfaculty.ucdenver.edu Rain Shadows Visualized: Vegetative Cover

Rain Shadows Visualized: Stream Location, Need for man-made diversion NHD Flowline: Maui Rain Shadows Visualized: Stream Location, Need for man-made diversion

Part 2: Man-Made Factors Freshwater Distribution and Artificial Paths NHD Flowline: Oahu Part 2: Man-Made Factors Freshwater Distribution and Artificial Paths

Data I Have Data I Need Topography: DEM Wind Speed NHD Monthly & Annual Rainfall Rasters Aquifers & Streams Wind direction Other freshwater: snow, fog, soil moisture Time-Series Data: Flow and Consumption Progress Report Quantify relationships between topography, wind direction and flow

Colleen Dawes EER ’14 cdawes@utexas.edu Questions?