Transport processes: Time scale correlation between flow and scalar concentration Chris Enright CWEMF DSM2 Workshop February 6, 2007.

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Presentation transcript:

Transport processes: Time scale correlation between flow and scalar concentration Chris Enright CWEMF DSM2 Workshop February 6, 2007

Or, how Geometry “filters” estuarine drivers (tides, river input) Chris Enright CWEMF DSM2 Workshop February 6, 2007

Transport processes For modeling purposes, validate that DSM2 transports salt etc. for the right reason… Reasons: Advection and dispersion

Advective Transport Correlation between net flow and net scalar concentration Mostly from river input and spring-neap estuary fill-drain cycle Advective Flux =

Dispersive Transport Correlation between tidal flow and tidal scalar concentration Driven by tide Dispersive Flux =

Total Flux Superposition of advective and dispersive flux. Total Flux = advection + disperion = + Compute with model output and field data and compare.

Suisun Marsh and Bay First Mallard Branch SheldrakeSlough

First Mallard Branch Sheldrake Slough Suisun Slough Comparing Sheldrake Sl. and First Mallard Branch Similar tidal prism Similar tidal prism Similar source water Similar source water Different adjacent land use Different adjacent land use

First Mallard Branch Suisun Slough

First Mallard Branch Suisun Slough

First Mallard Branch No Levees Suisun Slough

First Mallard Branch No Levees Marsh plain elevation is ~ MHHW Suisun Slough

First Mallard Branch No Levees Edge of Marsh Plain is ~ 6.7 feet NAVD88 Marsh plain elevation is ~ MHHW Suisun Slough

First Mallard Branch ADCP Sonde No Levees Marsh plain elevation is ~ MHHW Edge of Marsh Plain is ~ 6.7 feet NAVD88 Suisun Slough

Sheldrake Slough Suisun Slough

Sheldrake Slough Completely diked Suisun Slough

Sheldrake Slough Diversion/Drain Culverts Completely diked Suisun Slough

Sheldrake Slough Diversion/Drain Culverts Completely diked Moderately subsided marsh plain depending on land use practice Suisun Slough

Sheldrake Slough ADCP Sonde Completely diked Diversion/Drain Culverts Moderately subsided marsh plain depending on land use practice Suisun Slough

MHHW MSL MLLW Borrow Ditch Managed Pond ~ Sheldrake Slough Comparing Typical Cross-section Hypsography Mean Sea Level Levee

MHHW MSL MLLW MHHW MSL MLLW Borrow Ditch Managed Pond Marsh plain ~ Sheldrake Slough ~ First Mallard Branch Comparing Typical Cross-section Hypsography Mean Sea Level Levee

MHHW MSL MLLW MHHW MSL MLLW Managed Pond Marsh plain Sheldrake ~ SheldrakeSlough ~ First Mallard Branch Comparing Typical Cross-section Hypsography Spring High Tide Levee Borrow Ditch

First Mallard Branch Sheldrake Slough Suisun Slough Data is flow, temperature, chlorophyll, salt and DO flux at these locations:

Comparing Hydrodynamics

FLOW (cfs) April 2004 | May | June | July | August Tidal Flow 0 0 EBB (out) FLOOD (in)

FLOW (cfs) Tidal and Net Flow Tidal Flow Residual “Net” Flow 0 0 EBB (out) FLOOD (in) April 2004 | May | June | July | August

Flux (kg/s) Salt Flux Total = Advective + Dispersive Flux Flux Flux (Spring-Neap) (Tides) = + EBB (out) FLOOD (in) April 2004 | May | June | July | August

Flux (g/s) DO Flux EBB (out) FLOOD (in) April 2004 | May | June | July | August Total = Advective + Dispersive Flux Flux Flux (Spring-Neap) (Tides) = +

Temperature Flux April 2004 | May | June | July | August Temperature Flux (C*m /s) 3 EBB (out) FLOOD (in) Total = Advective + Dispersive Flux Flux Flux (Spring Neap) (Tides) = +

Spring Tide Advective Flux Flux (g/s) Chlorophyll Flux April 2004 | May | June | July | August EBB (out) FLOOD (in) Total = Advective + Dispersive Flux Flux Flux (Spring-Neap) (Tides) = +

Neap Tide Advective Flux Flux (g/s) Chlorophyll Flux April 2004 | May | June | July | August EBB (out) FLOOD (in) Total = Advective + Dispersive Flux Flux Flux (Spring-Neap) (Tides) = +

Spring Tide Dispersive Flux Flux (g/s) Chlorophyll Flux April 2004 | May | June | July | August EBB (out) FLOOD (in) Total = Advective + Dispersive Flux Flux Flux (Spring-Neap) (Tides) = +

Neap Tide Dispersive Flux Flux (g/s) Chlorophyll Flux April 2004 | May | June | July | August EBB (out) FLOOD (in) Total = Advective + Dispersive Flux Flux Flux (Spring-Neap) (Tides) = +

Drivers (forcing mechanisms) Outcomes (Chemical/Biological Habitat Characteristics) Conceptual Model Linkages (hydrodynamic processes)

Drivers (forcing mechanisms) Outcomes (Chemical/Biological Habitat Characteristics) Meteorology Tides River inputs Exports/ Diversions/ Drainages Conceptual Model Linkages (hydrodynamic processes)

Drivers (forcing mechanisms) Outcomes (Chemical/Biological Habitat Characteristics) Advection Dispersion - network - velocity shear - tidal trapping Gravitational Circulation Meteorology Tides River inputs Exports/ Diversions/ Drainages Conceptual Model Linkages (hydrodynamic processes)

Drivers (forcing mechanisms) Outcomes (Chemical/Biological Habitat Characteristics) Gradients of Residence time Salinity Temperature Sediment Biota Toxics etc. Meteorology Tides River inputs Exports/ Diversions/ Drainages Conceptual Model Linkages (hydrodynamic processes) Advection Dispersion - network - velocity shear - tidal trapping Gravitational Circulation

Drivers (forcing mechanisms) Outcomes (Chemical/Biological Habitat Characteristics) Geometry (Like aFilter) (Like a Filter) Gradients of Residence time Salinity Temperature Sediment Biota Toxics etc. Meteorology Tides River inputs Exports/ Diversions/ Drainages Conceptual Model Linkages (hydrodynamic processes) Advection Dispersion - network - velocity shear - tidal trapping Gravitational Circulation

Drivers (forcing mechanisms) Meteorology Tides River inputs Exports/ Diversions/ Drainages Outcomes (Chemical/Biological Habitat Characteristics) Geometry (Like aFilter) (Like a Filter) Gradients of Residence time Salinity Temperature Sediment Biota Toxics etc. Conceptual Model Linkages (hydrodynamic processes) Advection Dispersion - network - velocity shear - tidal trapping Gravitational Circulation

Drivers (forcing mechanisms) Outcomes (Chemical/Biological Habitat Characteristics) Geometry (Like aFilter) (Like a Filter) Gradients of Residence time Salinity Temperature Sediment Biota Toxics etc. Meteorology Tides River inputs Exports/ Diversions/ Drainages First Mallard Branch Conceptual Model Linkages (hydrodynamic processes) Advection Dispersion - network - velocity shear - tidal trapping Gravitational Circulation

Outcomes (Chemical/Biological Habitat Characteristics) Geometry (Like aFilter) (Like a Filter) Gradients of Residence time Salinity Temperature Sediment Biota Toxics etc. First Mallard Branch Conceptual Model Drivers (forcing mechanisms) Meteorology Tides River inputs Exports/ Diversions/ Drainages Linkages (hydrodynamic processes) Advection Dispersion - network - velocity shear - tidal trapping Gravitational Circulation

Outcomes (Chemical/Biological Habitat Characteristics) Geometry (Like aFilter) (Like a Filter) Meteorology Tides River inputs Exports/ Diversions/ Drainages Gradients of Residence time Salinity Temperature Sediment Biota Toxics etc. Sheldrake Slough Drivers (forcing mechanisms) Conceptual Model Linkages (hydrodynamic processes) Advection Dispersion - network - velocity shear - tidal trapping Gravitational Circulation

Thank you