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Location Folder Show Tree ROOT _ScienceBase Catalog __Woods Hole Coastal and Marine Science Center ___U.S. Geological Survey Hydrodynamic Model Simulations ____Idealized Simulations Idealized COAWST model cases for studying the comparison of physical to numerical mixing with different tracer advection schemes in estuarine environments Idealized COAWST numerical model for testing marsh wave thrust and lateral retreat dynamics routines Idealized numerical model for Submerged Aquatic Vegetation (SAV) growth dynamics Filters Date Range Past year (1) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions NetCDF OPeNDAP Service (2) OGC Web Service (1) Types NetCDF OPeNDAP Service (2) Map Service (1) OGC WMS Layer (1) Contacts Woods Hole Coastal and Marine Science Center U.S. Geological Survey Tarandeep S Kalra U.S. Geological Survey - ScienceBase Neil Kamal Ganju More... Categories Data (2) Tag Types theme (2) USGS Scientific Topic Keyword (4) Theme (2) ISO Topic Category (2) dataset (2) service (2) dataCenter (1) More... Tag Schemes CF Standard Name Table v48 (2) USGS Thesaurus (2) GCMD Science Keywords (1) scopecode (2) URL of ISO Codelist? (2) URL of thesaurus? (1) View Results as: JSON ATOM CSV Browse Folder

Idealized COAWST model cases for studying the comparison of physical to numerical mixing with different tracer advection schemes in estuarine environments The numerical simulation of estuarine dynamics requires accurate prediction for the transport of tracers such as temperature and salinity. All numerical models introduce two kinds of tracer mixing: 1) by parameterizing the tracer eddy diffusivity through turbulence models leading to a source of physical mixing and 2) discretization of the tracer advection term that leads to numerical mixing. Both physical and numerical mixing vary with the choice of horizontal advection schemes, grid resolution, and time step. We utilize the Coupled-Ocean-Atmosphere-Wave-Sediment Transport (COAWST) model to study the mixing in the model by simulating four idealized cases with three different tracer advection schemes. Tags: Marine Geology, Water Resources, coastal processes, mathematical modeling Idealized numerical model for Submerged Aquatic Vegetation (SAV) growth dynamics An idealized domain is setup to test the development of Submerged Aquatic Vegetation (SAV) growth model within the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) model. The change in SAV biomass is computed from temperature, nutrient loading and light predictions obtained from coupled hydrodynamics (temperature), bio-geochemistry (nutrients) and bio-optical (light) models. In exchange, the growth of SAV sequesters or contributes nutrients from the water column and sediment layers. The presence of SAV modulates current and wave attenuation and consequently affects modelled sediment transport. The idealized domain simulation shows that the newly developed framework can simulate a two-way coupled SAV-biogeochemistry-hydrodynamic... Categories: Data; Types: NetCDF OPeNDAP Service; Tags: Environmental Health, Marine Geology, Water Quality, barotropic_sea_water_x_velocity, barotropic_sea_water_y_velocity, All tags... coastal processes, dataset, mathematical simulation, ocean_s_coordinate_g1, oceans, sea_surface_height_above_geopotential_datum, sea_water_potential_temperature, sea_water_salinity, sea_water_x_velocity, sea_water_y_velocity, service, time, Fewer tags Idealized COAWST numerical model for testing marsh wave thrust and lateral retreat dynamics routines There are two idealized domains developed in this work to test the marsh dynamics in the COAWST modeling framework. 1. First idealized domain is to test and verify the lateral thrust calculations. 2. Second idealized domain is to test the implementation of lateral retreat formulations. Tags: Hydrology, Marine Geology, Mathematical Modeling, Sediment transport, coastal processes Idealized COAWST model cases for testing sensitivity of sediment transport and marsh accretion to vegetation, wave, and sediment parameters Marshes may drown if they are unable to accrete sediment at the rate of sea level rise, but predicting the rate of sediment accretion at different marshes is challenging because many processes (e.g. tidal range, wave frequency) and conditions (e.g. available sediment, vegetation density, shape of the marsh edge) impact it. The Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST, Warner and others 2019; Warner and others 2010) model was used to simulate three-dimensional hydrodynamics, waves, and sediment transport on a marsh platform in an idealized domain. The computational grid was 400 (20) cells in the cross-shore (along-shore) directions with 10 vertical sigma layers, and a cross-shore horizontal resolution... Categories: Data; Types: Map Service, NetCDF OPeNDAP Service, OGC WMS Layer; Tags: Earth Science > Oceans > Coastal Processes > Estuaries, Earth Science > Oceans > Coastal Processes > Marshes, Earth Science > Oceans > Coastal Processes > Sediment Transport, Earth Science > Oceans > Coastal Processes > Sedimentation, Hydrology, All tags... Investigating Geomorphic Evolution, U.S.Geological Survey - ScienceBase, barotropic_sea_water_x_velocity, barotropic_sea_water_y_velocity, climatologyMeteorologyAtmosphere, dataset, estuarine processes, modeling, ocean_s_coordinate_g1, ocean_sigma_coordinate, sea_surface_height_above_geopotential_datum, sea_surface_wave_significant_height, sea_water_x_velocity, sea_water_y_velocity, sediment transport, sediment_bed_thickness, service, time, wetland ecosystems, Fewer tags