Description Usage Arguments Value See Also

Compute the first or last day of 8-day intervals for a given year. Handles leap years when finding the last day of 8-day intervals.

1 | ```
get_8days(year, form = "%j", when = "first")
``` |

`year` |
numeric or character the year(s) to compute |

`form` |
charcater, by default we return the day of the year in '001' form |

`when` |
character either 'first' or 'last' to indicate the first or last day of the 8-day interval |

a list of character vectors of the last day of the 8-day interval for the years specified with one list element per year. Be advised that the first day of winter for a given year occurs in the prior year.

http://oceancolor.gsfc.nasa.gov/BROWSE_HELP/L3/

Other DAYS: `get_monthdays`

;
`get_seasondays`

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