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yyyymmdd_to_yyyyddd

Given concatenated year-month-day_of_month (yyyymmdd) create a one-dimensional array containing concatenated year and day_of_year (yyyyddd) values.

Available in version 5.1.1 and later.

Prototype

load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"

	function yyyymmdd_to_yyyyddd (
		yyyymmdd [*] : integer   
	)

Arguments

yyyymmdd

A scalar or one-dimensional array specifying the date.

Return value

A one-dimensional array of type integer containing values of the form yyyyddd.

Description

The return integer is constructed via

[ yyyy*1000 + day_of_year(yyyy, mm, dd) ]

See Also

List of "date" and "calendar" functions

Examples

The following require that contributed.ncl be loaded prior to invoking the function.

       load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"

Example 1

               ; all have the form 'yyyymmdd'
      date     = (/ 20030101, 20030201, 20030301 \
                  , 20040301, 20041231           \    ; leap year 
                  , 20050301, 20051231/)
      yyyyddd  = yyyymmdd_to_yyyyddd( date )
      print(date+"   "+yyyyddd) 
The above yields:
          date      
        yyyymmdd   yyyyddd
(0)	20030101   2003001   
(1)	20030201   2003032
(2)	20030301   2003060       ; non-leap year
(3)	20040301   2004061       ; note March 1 is one day later 
(4)	20041231   2004366       ; last day of a leap year
(5)	20050301   2005060       ; non-leap year
(6)	20051231   2005365       ; last day of non-leap year