The Water Column Viewing Option is the primary 2D viewer for all of the water column related parameters as shown in Figure 1. The water column may be viewed by layer or by depth. For the former, the first options to set are the Layer Settings. There are three layering options for processing the water column data. They are Depth Avg for depth averaged results, Bot Layer for viewing the bottom active water column layer (this varies in the GVC model, standard sigma model this is layer 1) and a specified layer.
...
Table 7 5 Water quality parameter list available for display.
EFDC/HEM3D Parameters | EFDC_Explorer Derived Parameters (cont.) | ||
Abbrev | Name | Abbrev | Name |
CBact | Cyanobacteria | POrg C | Particulate Organic Carbon |
Alg-D | Diatom Algae | POrg N | Particulate Organic Nitrogen |
Alg-G | Green Algae | TKN | Total Kjedahl Nitrogen |
RPOrg C | Refractory Particulate Organic Carbon | Tot N | Total Nitrogen |
LPOrg C | Labile Particulate Organic Carbon | Chl a | Chlorophyll a |
DOrg C | Dissolved Organic Carbon | TION | Total Inorganic Nitrogen |
RPOrg P | Refractory Particulate Organic Phosphorus | LimP-C | Algae Limit: Phosphorus-Cyanobacteria |
LPOrg P | Labile Particulate Organic Phosphorus | LimP-D | Algae Limit: Phosphorus-Diatom Algae |
DOrg P | Dissolved Organic Phosphorus | LimP-G | Algae Limit: Phosphorus-Green Algae |
TPO4-P | Total Phosphate | LimN-C | Algae Limit: Nitrogen-Cyanobacteria |
RPOrg N | Refractory Particulate Organic Nitrogen | LimN-D | Algae Limit: Nitrogen-Diatom Algae |
LPOrg N | Labile Particulate Organic Nitrogen | LimN-G | Algae Limit: Nitrogen-Green Algae |
DOrg N | Dissolved Organic Nitrogen | LimNP-C | Algae Limit: N and P-Cyanobacteria |
NH4-N | Ammonia Nitrogen | LimNP-D | Algae Limit: N and P-Diatom Algae |
NO3-N | Nitrate Nitrogen | LimNP-G | Algae Limit: N and P-Green Algae |
PBioSi | Particulate Biogenic Silica | LimL-C | Algae Limit: Light-Cyanobacteria |
AvailSi | Dissolved Available Silica | LimL-D | Algae Limit: Light-Diatom Algae |
COD | Chemical Oxygen Demand | LimL-G | Algae Limit: Light-Green Algae |
DO | Dissolved Oxygen | LimT-C | Algae Limit: Temperature-Cyanobacteria |
TActM | Total Active Metals | LimT-D | Algae Limit: Temperature-Diatom Algae |
FColi | Fecal Coliform | LimT-G | Algae Limit: Temperature-Green Algae |
MacAlg | Macroalgae | LimA-C | Algae Limit: All Factors-Cyanobacteria |
EFDC_Explorer Derived Parameters | LimA-D | Algae Limit: All Factors-Diatom Algae | |
Tot C | Total Organic Carbon | LimA-G | Algae Limit: All Factors-Green Algae |
Tot P | Total Phosphorus | TSI | Carlson's Trophic State Index |
TORN | Total Organic Nitrogen | TSS | Total Suspended Solids (Inorg & Org) |
TORP | Total Organic Phosphorus | POrg P | Particulate Organic Phosphorus |
...
The user may undertake a habitat analysis of the water column when the Water by Layer drop down is selected as shown in Figure Figure 3. This tool is access by ALT-H. The user may analyze any of the parameters displayed in the Options in frame in the right hand column. The user should set critical levels (in this case temperature, oC), critical depths and critical duration (in hours) and press Display. EFDC will then calculate the number of cells for which these criteria apply, displaying the area and volume in the yellow Habitat Criteria box, as well displaying the critical cells. A second critical duration may also be displayed concurrently.
The user may undertake several kinds of habitat analysis from ViewPlan by selecting Alt-H. This will open the EEMS Habitat Tools option form as shown in Figure 3. Select 1, 2, or 3, for the Thermal and Depth Criteria Limits, Critical Limits, or HSC options respectively. The latter two options are only available if they have been correctly configured as described in Section 7.5.
| Anchor | ||||
|---|---|---|---|---|
|
Figure 3
Figure 3 ViewPlan: Habitat tools.
The most basic option is option 1, Thermal and Depth Criteria Limits. This analysis tool was initially implemented to support studies on manatee populations in the Chassahowitzka Estuary. This kind of analysis of the water column is available when the Water by Layer drop down is selected as shown in Figure 4. The user may analyze any of the parameters displayed in the Viewing Options frame. In the Critical Habitat Analysis form the user should set critical levels (in this case temperature, oC), critical depths and critical duration (in hours) and press Display. EE will then calculate the number of cells for which these criteria apply, displaying the area and volume in the yellow Habitat Criteria box, as well displaying the critical cells. A second critical duration may also be displayed concurrently.
| Anchor | ||||
|---|---|---|---|---|
|
Figure 4 ViewPlan: Water by Layer, Habitat Analysis tool.
Selecting option 2 or 3 will cause EE to prompt the user for the habitat limits or criteria file. EE will then display areas satisfied by the criteria, as shown in Figure 5. This option is available for all the parameters that may be set in the habitat critical limits, or suitability criteria. If a cell is dry it is shown as grey. For the critical limits the default color ramp is white (0) to green (1). For habitat suitability criteria the same principle applies, however shades of green from 0 to 1 are displayed.
| Anchor | ||||
|---|---|---|---|---|
|
Figure 5 ViewPlan: Habitat criteria limits.