[ncl-talk] difference between time and time at time

[dyjbean at 163.com]

hi,
   i have make a time variable, the patial code as follows:

***********************************************************
time=new((/18262/),"integer","No_FillValue")
yyyymmdd = yyyymmdd_time(2001, 2050, "integer")
time!0="time"
time&time=yyyymmdd 
time at units="days since 2001-1-1 0:0"
time at long_name="time"
**********************************************

after inputing the above coding in ncl shell, then using the two following command:
print(time)  and print(time&time)

but they gave different result.

ncl 16> print(time)

Variable: time
Type: integer
Total Size: 73048 bytes
            18262 values
Number of Dimensions: 1
Dimensions and sizes:   [time | 18262]
Coordinates:
            time: [20010101..20501231]
Number Of Attributes: 2
  long_name :   time
  units :       days since 2001-1-1 0:0
(0)     0
(1)     0
(2)     0
(3)     0
(4)     0
(5)     0
(6)     0
(7)     0
(8)     0
(9)     0
(10)    0
(11)    0
(12)    0

--------------------------------------------------------------

ncl 17> print(time&time)

Variable: time (coordinate)
Type: integer
Total Size: 73048 bytes
            18262 values
Number of Dimensions: 1
Dimensions and sizes:   [time | 18262]
Coordinates:
Number Of Attributes: 2
  units :       days since 2001-1-1 0:0
  long_name :   time
(0)     20010101
(1)     20010102
(2)     20010103
(3)     20010104
(4)     20010105
(5)     20010106
(6)     20010107
(7)     20010108
(8)     20010109
(9)     20010110
(10)    20010111
(11)    20010112


++++++++++++++++++++++++++++++++++++++++++++++++++

but they showed different result, why they cannot give the same result like other NCEP files?


thanks for your advice! 






dyjbean at 163.com
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