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time_series_page [2019/11/18 13:34] 127.0.0.1 external edit |
time_series_page [2021/11/15 11:09] mina |
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- | ====== Time Series | + | ====== Time Series ====== |
Many models require time dependent data such as temperature, | Many models require time dependent data such as temperature, | ||
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**Interpolation** - The interpolation field will determine how values before, between and after the time-points are interpolated/ | **Interpolation** - The interpolation field will determine how values before, between and after the time-points are interpolated/ | ||
- | + | | |
- | | + | * **None** – Time-points |
- | * **Interpolation-Use end values** – Values between the specified time-points | + | **Mode** - the Mode will determine |
- | * **Use input nearest** – For each simulation time point the value for the nearest specified time is used. | + | * **Date** |
- | * **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. | + | * **Year** |
- | * **Use input above** – For each simulation time point the value for the nearest | + | ..or between periodic data options, such as: |
- | + | * **Month** | |
- | **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). | + | * **Day of year** |
+ | * **Day of month** | ||
+ | * **Day** | ||
+ | * **Hour** | ||
+ | * **Minute** | ||
+ | * **Second** | ||
==== Entering data ==== | ==== Entering data ==== | ||
- | The data table is organised | + | The data table is organized |
Note that time series typically begin at 0. This means, that for year 1, you enter 0. For year 2 you enter 1, etc. | Note that time series typically begin at 0. This means, that for year 1, you enter 0. For year 2 you enter 1, etc. | ||
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When you enter data for a multidimensional time series, such as a release rate of contaminants, | When you enter data for a multidimensional time series, such as a release rate of contaminants, | ||
- | [[|]] | ||
===== Importing and exporting data ===== | ===== Importing and exporting data ===== | ||