Chip Hunt U. S. Geological Survey, Honolulu, hi



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tarix04.02.2018
ölçüsü645 b.
#23585


— NOAA / USGS Cooperative Program — Simulation of Coastal Wastewater Injection in Hawaii using SUTRA … and the Value of Compelling Visualizations in Conveying Results to the Non-Specialist Public

  • Chip Hunt

  • U.S. Geological Survey, Honolulu, HI

  • cdhunt@usgs.gov




Photo: Jennifer Smith



Objectives















3-D Ground-Water Model

  • Code: SUTRA (Voss & Provost, 2002, USGS)

  • Variable-density flow & solute transport

  • Solute = Salt (freshwater-saltwater flow)

  • DID NOT simulate nutrient transport

  • Post-processing to visualize plume, GW age

  • Kh= 3000 m/d Kh:Kv anisotropy=200:1

  • aL = 76 m aT = .022 m



Model Mesh





Injection Plume is Buoyant





Salinity Visualization



Effluent-Tracer Visualization



Plume internal structure, 20% shells







Ground-Water Age at Water Table





Algal tissue 15N highest near plume



Nutrient load per kilometer coast (kg / day – km coast)



Attenuated* wastewater nutrient load (kg / day – km coast)



Urban Nutrient Load? Don’t know.



… rough work but somebody’s gotta do it











Funding by NOAA ECOHAB (Ecology and Oceanography of Harmful Algae Blooms)




Yüklə 645 b.

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