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EEMS provides access to a number of online data sources that can be used to automatically populate time series. These should be used with care, and we do not guarantee the quality of the data. Access to this feature is provided from the Tools menu, and selecting Download Online Data. There are three sub-options: Model Open Boundary Conditions, Tidal Level for Model Boundaries, and Tidal Harmonics for Station as shown in Figure 1.

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The data source of water surface elevation is from HYCOM Global Surface Data. Water salinity and water temperature are from the Navy Global Hybrid Coordinate Ocean Model (HYCOM). These data sources are present in file the *.ini file in the EEMS OnlineData folder of EEMS (e.g., C:\Program Files\DSI\EEMS11.6\OnlineData), we can open these files by . These files can be opened and edited with a text editor.

In the case of a model that has an existing open boundary, open the 2DH View, turn on the light in the Boundaries layer of the Layer Control to show the boundaries of the model as shown in Figure 2. This displays the locations of the open boundary.

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Boundary: click the drop-down arrow; , and the boundaries will showbe displayed; select a boundary for which we want to download data

Data Type: click the drop-down arrow; data types will show and will include water surface elevation, water salinity, and water temperature

Data Set: This is the data source

List of Boundary Grid Cells: It shows all cells in the selected boundary. Each cell has an I and J index

Dataset Information: This is general information about the dataset. These fields of this frame are non-editable.

Begin: This is the beginning time of available data

End: This is the ending time of available data. The Begin and End are updated after clicking the Get Times button.

Base Date

Interval (hours): This is the frequency of data collection

#: This is  is the number of data records

Download Options

Time Begin: This is the starting time

Time End: This is the ending timethese . These two fields are editable; enter the Time Begin and Time End must be within the time frame (Begin and End) of Dataset Information.

Merge with Existing Series: This option   will update the downloaded data to the existing boundary data series.

Replace Existing Series:This option will  will replace the current boundary data series with new downloaded data series.

Separated Series for Each Cell:This option will  will create a time series for each boundary cell and name it using the I and J indices of the cell.

Time Zone: Most global data are based on time zone 0 (UTC). There forTherefore, you need to must provide the correct time zone as the number of hours shifted from UTC for your model.

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