[ncl-talk] error message associated with month_to_annual_weighted function

Lei Meng dream916 at gmail.com
Tue Mar 10 15:04:15 MDT 2015


Thank you. The file you sent works.

Best, Lei

On Tue, Mar 10, 2015 at 4:41 PM, Dennis Shea <shea at ucar.edu> wrote:

> Not sure of the issue. I have attached month_to_annual_weighted.ncl.
> Make sure you are using this one.
>
>
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
> load "./month_to_annual_weighted.ncl"
> begin
>
>   diri = "/Users/nmb1441/research/papers/china/monsoons/cru_data/pet/"
>   srcFileName = "cru_ts3.21.1951.1960.pet.dat.nc"
>
>   refile= addfile(diri + srcFileName,"r")
>
>   pet = refile->pet
>   printVarSummary(pet)
>
>   yearfrac = cd_calendar(pet&time,  4)      ; same as time = f->timeNot
> sure of the issue
>   yyyymm   = cd_calendar(pet&time, -1)
>
>   print(yyyymm+" "+yearfrac)
>
>   pet_annual_total1= month_to_annual_weighted(yyyymm,pet,0)
>   printVarSummary(pet_annual_total1)
>
> end
>
> Seems to work fine.
>
>
> Variable: pet_annual_total1
> Type: double
> Total Size: 20736000 bytes
>             2592000 values
> Number of Dimensions: 3
> Dimensions and sizes:   [year | 10] x [lat | 360] x [lon | 720]
> Coordinates:
>             year: [1951..1960]
>             lat: [-89.75..89.75]
>             lon: [-179.75..179.75]
> Number Of Attributes: 3
>   _FillValue :  9.969209968386869e+36
>   long_name :   potential evapotranspiration
>   units :       mm/day
>
>
> On Tue, Mar 10, 2015 at 2:08 PM, Lei Meng <dream916 at gmail.com> wrote:
>
>> Hi,
>>
>> I am still unable to get the function month_to_annual_weighted.ncl to
>> work. I used the function code that you sent. Here is my script:
>>
>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
>> load "./month_to_annual_weighted.ncl"
>> begin
>>
>>   diri = "/Users/nmb1441/research/papers/china/monsoons/cru_data/pet/"
>>   srcFileName = "cru_ts3.21.1951.1960.pet.dat.nc"
>>   refile= addfile(diri + srcFileName,"r")
>>
>>   pet = refile->pet
>>   lat = refile->lat
>>   lon = refile->lon
>>   time = refile->time
>>
>>   time at calendar = "gregorian"
>>   yearfrac = cd_calendar(time,  4)
>>
>>   yyyymm = cd_calendar(time, -1)
>>
>>   dym      = cd_calendar(time,  -1)
>>
>>   print(dym)
>>
>>   printVarSummary(pet)
>>   printVarSummary(dym)
>>   pet_annual_total1= month_to_annual_weighted(yyyymm,pet,0)
>>
>> end
>>
>> The error message I got is :
>>
>> fatal:Variable (yrFrac) is undefined, can not assign attribute (calendar)
>>
>> fatal:["Execute.c":8578]:Execute: Error occurred at or near line 52 in
>> file ./month_to_annual_weighted.ncl
>>
>>
>> fatal:["Execute.c":8578]:Execute: Error occurred at or near line 28 in
>> file test-temp1.ncl
>>
>>
>> I am using ncl 6.2.1.
>>
>> Thanks!
>>
>> Lei
>>
>>
>>
>> On Wed, Jan 28, 2015 at 1:33 PM, Dennis Shea <shea at ucar.edu> wrote:
>>
>>> [1] Please indicate which version of NCL you are using.
>>>
>>> [2] I speculate the following will work
>>>
>>>      yyyymm = cd_calendar(time, -1)   ; <===
>>>      pet_annual_total1= month_to_annual_weighted(yyyymm,pet,0)
>>>
>>> [3] Since, I am not sure what version of NCL you have, please load the
>>> attached
>>>
>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
>>> load "./month_to_annual_weighted.ncl"
>>>
>>> ... your script ...
>>>
>>> [4] Note: from 6.2.0 onward,  users do not need to explicitly load the
>>> gsn_code/gsn_csm/contributed libraries
>>>
>>> Goos Luck
>>>
>>> On Wed, Jan 28, 2015 at 9:54 AM, Lei Meng <dream916 at gmail.com> wrote:
>>>
>>>> Hi,
>>>>
>>>> I tried to convert monthly values to annual valued weighted by the
>>>> number of days. Here is my code:
>>>>
>>>> ----
>>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
>>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
>>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
>>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/esmf/ESMF_regridding.ncl"
>>>> begin
>>>>
>>>>   diri = "/Users/nmb1441/research/papers/china/monsoons/cru_data/pet/"
>>>>   srcFileName = "cru_ts3.21.1951.1960.pet.dat.nc"
>>>>   refile= addfile(diri + srcFileName,"r")
>>>>
>>>>   pet = refile->pet
>>>>   lat = refile->lat
>>>>   lon = refile->lon
>>>>   time = refile->time
>>>>
>>>>   time at calendar = "gregorian"
>>>>   yearfrac = cd_calendar(time,  4)
>>>>
>>>>   yyyymm1 = cd_calendar(time, 1)
>>>>
>>>>   dym      = cd_calendar(time,  1)
>>>>
>>>>   print(dym)
>>>>
>>>>   printVarSummary(pet)
>>>>   printVarSummary(dym)
>>>>   pet_annual_total1= month_to_annual_weighted(dym,pet,0)
>>>>
>>>> end
>>>> --
>>>> The summaries of variables pet and dym are as follows:
>>>>
>>>> Variable: pet
>>>>
>>>> Type: double
>>>>
>>>> Total Size: 248832000 bytes
>>>>
>>>>             31104000 values
>>>>
>>>> Number of Dimensions: 3
>>>>
>>>> Dimensions and sizes: [time | 120] x [lat | 360] x [lon | 720]
>>>>
>>>> Coordinates:
>>>>
>>>>             time: [18642..22264]
>>>>
>>>>             lat: [-89.75..89.75]
>>>>
>>>>             lon: [-179.75..179.75]
>>>>
>>>> Number Of Attributes: 5
>>>>
>>>>   long_name : potential evapotranspiration
>>>>
>>>>   units : mm/day
>>>>
>>>>   correlation_decay_distance : -999
>>>>
>>>>   _FillValue : 9.969209968386869e+36
>>>>
>>>>   missing_value : 9.969209968386869e+36
>>>>
>>>> Variable: dym
>>>>
>>>> Type: double
>>>>
>>>> Total Size: 960 bytes
>>>>
>>>>             120 values
>>>>
>>>> Number of Dimensions: 1
>>>>
>>>> Dimensions and sizes: [120]
>>>>
>>>> Coordinates:
>>>>
>>>> Number Of Attributes: 1
>>>>
>>>>   calendar : gregorian
>>>>
>>>> (0) month_to_annual_weighted: mm must be 1-to-12 inclusive
>>>>
>>>> The error message is " mm must be 1-to-12 inclusive".
>>>>
>>>> dym values are from 195101 to 196012.
>>>>
>>>> This is a very simple code. I couldn't figure out what was wrong with
>>>> my code.
>>>>
>>>> The data is too big and I will send it if necessary. Thanks for any
>>>> suggestions.
>>>>
>>>> Lei
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
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>>>>
>>>>
>>>
>>
>
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