In the *Units* column, * u* indicates the units of the physical quantity before the method is applied.

**Table E.1. Cell Methods**

`cell_method` | Units | Description |
---|---|---|

`point` | `u` | The data values are representative of points in space or time (instantaneous). This is the default method for a quantity that is intensive with respect to the specified dimension. |

`sum` | `u` | The data values are representative of a sum or accumulation over the cell. This is the default method for a quantity that is extensive with respect to the specified dimension. |

`maximum` | `u` | Maximum |

`median` | `u` | Median |

`mid_range` | `u` | Average of maximum and minimum |

`minimum` | `u` | Minimum |

`mean` | `u` | Mean (average value) |

`mode` | `u` | Mode (most common value) |

`standard_deviation` | `u` | Standard deviation |

`variance` | `u` ^{2} | Variance |