time_series_screen

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The layout of the options screen, time series screen and the parameters screen is the same, and is described in data input screens.

Options are listed by name, and selecting an option in the list allow you to change it.

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The data table displays the data for the selected time series. The table shows data for one dependency at a time. For a time series dependent on contaminants, a drop-down list above the table will let you choose which contaminant to enter values for.

**Interpolation** - The interpolation field will determine how values before, between and after the time-points are interpolated/extrapolated.

* **Interpolation-Extrapolation** – Values between the specified time-points are linearly interpolated. Values before the first time point and after the last time-point will be extrapolated.

* **Interpolation-Use end values** – Values between the specified time-points are linearly interpolated. The value for the first time point will be used when time is less than the first time point. The value for the last time point will be used when time is larger than the last time point.

* **Use input nearest** – For each simulation time point the value for the nearest specified time is used.

* **Use input below** – For each simulation time point the value for the nearest of the lower specified time points is used. If none of the specified time points is lower, then the nearest of all specified time points is used.

* **Use input above** – For each simulation time point the value for the nearest of the higher specified time points is used. If none of the specified time points is higher, then the nearest of all specified time points is used.

**Cyclic** - When selected the time series will be “looped” and all values repeated. This feature is useful for periodic data, for instance one year dayly data of precipitation. Note that for cyclic lookup tables the final value(s) must be the same as the first value(s).

Notes:

- You can enter different time series for different contaminants.
- The time series start at day 0 from when the study starts. The time unit is days.

time_series_screen.1401101656.txt.gz · Last modified: 2014/06/09 12:00 (external edit)