| Field name | Description | Units |
|---|---|---|
| Year | The year the data were collected | n/a |
| Yday | Decimal year day | UTC, January 1 at 00:00 is 1.0 |
| MO | The month the data was collected | UTC |
| DA | The day the data were collected | UTC |
| HH | The hour the data were collected | UTC |
| MM | The minute the data were collected | UTC |
| SS | The second the data were collected | UTC |
| lrec | Total number of records collected during averaging period | |
| V_mean | The mean value of the variable over the averaging period | |
| V_m50 | The median value of the variable over the averaging period | |
| V_min | The minimum value of the variable over the averaging period | |
| V_max | The maximum value of the variable over the averaging period | |
| V_std | The std of the variable over the averaging period | |
| V_std_dt | The standard deviation of the detrended variable over the averaging period | |
| _length | The number of valid data points collected over the averaging period |