### GWE-ADV

#### Structure of Blocks

_FOR EACH SIMULATION_

```
    BEGIN OPTIONS
      [SCHEME <scheme>]
    END OPTIONS
```

#### Explanation of Variables

##### Block: OPTIONS

  * `scheme` scheme used to solve the advection term.  Can be upstream, central, or TVD.  If not specified, upstream weighting is the default weighting scheme.

#### Example Input File
```
    BEGIN OPTIONS
      SCHEME UPSTREAM
    END OPTIONS
```