There are three options to initialize sediment bed in EFDC_explorer including Use Polygon DSM (polygon digital surface model), Use Sediment Cores with Grainsize and Create Uniform Bed. This page guides how to use with sediment cores. Sediment cores samples are sampled then be analyzes in laboratory and recorded in reports. Data of sediment cores data will be summarized and formatted from the reports as shown in Figure 1.
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Sediment cores are analyzed from the lab and recorded in the report. From the report the user can extract the information then fulfill in the form as shown in Figure 166, it includes the following information
- Put a name of core ( e.g Core1)
- Coordinates of the sediment core (X, Y, Z)
- Thickness of sediment layer, porosity and specific sediment gravity (SSG)
- Sieve size and percent passing of grain corresponding to each layer
- when it is done for each layer, the user click Add button to add the sediment layer.
- the user can update data for a layer by select the layer then change data its properties or delete the select layer
- Finally click OK button to finish for Core1. And the user can repeat by steps in Figure 15 and 16 for next sediment core.
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Figure 16 6 Sediment Core Editing Form.
Afterdefining sediment cores finished, the user should save out the cores by Right-Mouse Click then select Save Coresas shown in Figure 177. A form as shown in in Figure 18 8 appear, the user put a name of the file and folder to store the file then click Save button.
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Figure 17 7 Save Cores Out (1).
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Figure 18 8 Save Cores Out (2).
So now we have the sediment core data file ( e.g TraKhuc_Sed_Cores.dat) as shown in Figure 14. Now and we can set initial condition for sediment as shown in Figure 132.