1 / 3

ROMS modeling of stormwater plumes and anthropogenic nitrogen inputs in the SCB

ROMS modeling of stormwater plumes and anthropogenic nitrogen inputs in the SCB. Eileen Idica ( edeng@ucla.edu ) PhD candidate, Dept Civil & Env Engineering, UCLA Advisor: Keith Stolzenbach. Regional Oceanic Modeling System (ROMS). SCB Configuration • 1 km horizontal resolution

ginata
Download Presentation

ROMS modeling of stormwater plumes and anthropogenic nitrogen inputs in the SCB

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ROMS modeling of stormwater plumes and anthropogenic nitrogen inputs in the SCB Eileen Idica (edeng@ucla.edu) PhD candidate, Dept Civil & Env Engineering, UCLA Advisor: Keith Stolzenbach Regional Oceanic Modeling System (ROMS) SCB Configuration • 1 km horizontal resolution • 40 vertical levels • surface forcings ◦ momentum (MM5) ◦ freshwater and heat fluxes • lateral boundary fluxes from larger US West Coast ROMS solution • anticipated to have 1996-2003 6-hourly solutions

  2. Example: Los Angeles River stormwater discharge simulation • Analytical, one-day storm event • 500 cms daily mean flow • Salinity of discharge is zero • Passive tracer released with discharge • Half-Gaussian vertical input profile Would like to • determine plume dynamics within a range of ocean forcings • model suspended sediments, settling, and sorption in stormwater discharge • investigate relative space and time scales in which these processes affect transport of contaminants carried by the stormwater plume

  3. Impact of anthropogenic nitrogen to the Southern California Bight • Use ROMS and ecosystem model • to simulate: • i) low upwelling year (1997-1998) • high upwelling year (2001-2002) • i) only upwelled nitrogen • ii) “natural” land input of nitrogen • iii) existing stormwater and • wastewater inputs • (18 major rivers, • 4 largest treatment facilities) ROMS ecosystem model (Gruber et al. 2006) What, if any, biological “signal” will we observe in the set of simulations from anthropogenic inputs, and on what spatial and time scales?

More Related