Re: clarification on indices

Yes ... that is correct. To use in NCL ... subtract one (1)
The WRF project provided the wrf_* functions.

D

On 11/4/11 12:45 PM, Peter Olsson wrote:
> All-
>
> I was perusing a script of the users group archives the other day and found:
>> .
>> .
>> .
>> loc = wrf_user_ll_to_ij(a, lons, lats, True)
>>
>> ; loc(0,;) is west-east (x) ; loc(1,:) is south-north (y)
>> ; subtract one since we want to use it as an index in NCL
>>
>> x_start = loc(0,0) - 1
>> .
>> .
>> .
>
> This makes me wonder if I have been misapplying wrf_user_ll_to_ij(). The
> comment section above suggests that the indices returned by the function
> perhaps range: 1 -> nx , 1 -> ny, while NCL uses the zero_offset: 0 ->
> nx - 1, 0 -> ny - 1?
>
> Am I interpreting this correctly?
>
> PLZ advise
> PQO
> ___________________________________________________________
> |
> | Dr. Peter Q. Olsson,
> | Alaska State Climatologist, Alaska State Climate Center
> | Chief Scientist, Alaska Experimental Forecast Facility
> | University of Alaska Anchorage
> | 2811 Merrill Field Drive
> | Anchorage, AK 99501
> | voice: (907) 786-7234, fax (907) 786-7237|
>
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Received on Fri Nov 4 13:59:43 2011