### UTL-TAS

#### Structure of Blocks

_FOR EACH SIMULATION_

```
    BEGIN ATTRIBUTES
      NAME <time_series_name> 
      [METHOD <interpolation_method>]
      [SFAC <sfacval>]
    END ATTRIBUTES
```
```
    BEGIN TIME <time_from_model_start>
      
            <tas_array(unknown)> -- READARRAY
    END TIME
```

#### Explanation of Variables

##### Block: ATTRIBUTES

  * `NAME` xxx

  * `time_series_name` Name by which a package references a particular time-array series. The name must be unique among all time-array series used in a package.

  * `METHOD` xxx

  * `interpolation_method` Interpolation method, which is either STEPWISE or LINEAR.

  * `SFAC` xxx

  * `sfacval` Scale factor, which will multiply all array values in time series. SFAC is an optional attribute; if omitted, SFAC = 1.0.

##### Block: TIME

  * `time_from_model_start` A numeric time relative to the start of the simulation, in the time unit used in the simulation. Times must be strictly increasing.

  * `tas_array` An array of numeric, floating-point values, or a constant value, readable by the U2DREL array-reading utility.