[gradsusr] Help Regarding additon of extra t dimension ina grd file

Kishore Ragi kishoreragi at gmail.com
Thu Dec 5 13:59:34 EST 2019


I don't think Suman's CDO solution may not work.
cdo mergetime file120.nc first12.nc file132.nc

first12.nc's timesteps are the part of file120.nc, so in the cdo mergetime
output may not write the same timesteps twice. Therefore, the file132.nc
may have only 120 timesteps; however, I may be wrong as well.

Regards,
Kishore

*Department of Chemistry,*

*National Institute of Technology, Rourkela,*

*India- 769008*





*Phone: +91-8908671881http://www.researchgate.net/profile/Kishore_Ragi
<http://www.researchgate.net/profile/Kishore_Ragi>https://in.linkedin.com/in/kishoreragi
<https://in.linkedin.com/in/kishoreragi>*


On Fri, Dec 6, 2019 at 12:06 AM Dr. Suman Maity <suman.buie at gmail.com>
wrote:

> Dear Tammy
> Is it possible for you to share your netcdf file? If the sige is big then
> cut it to a smaller domain by cdo sellonlatbox.
> I will check it and reply accordingly.
>
> Best
> Suman
>
> On Thu 5 Dec, 2019, 5:34 PM Tanmay Sarkar, <tanmays at barc.gov.in> wrote:
>
>> Dear Sir,
>> Thank you so much for your reply. I have used this option. It is creating
>> merged *.nc file. But that merged file is not opening using GrADS. It is
>> giving some error saying "time unit has too small and increment".
>> Don’t know why I am not able to visualize. That why I am confused.
>>
>> --
>> Thanks and Regards
>> ~~~~~~~~~~~~~~~~~~~~~~~~~
>> Tanmay Sarkar
>> Scientific Officer D
>> Safety Studies Section
>> Health Physics Division
>> Bhabha Atomic Research Centre
>> Trombay, Mumbai -⁠ 400 085
>> &
>> PhD Student
>> Homi Bhabha National Institute
>> =========================
>> Contacts:
>> +91-22-25592359 (O)
>> +91-9920134749 (M)
>> =========================
>>
>>
>>
>> -----Original Message-----
>> From: gradsusr [mailto:gradsusr-bounces at gradsusr.org] On Behalf Of Dr.
>> Suman Maity
>> Sent: 05 December 2019 17:19
>> To: GrADS Users Forum
>> Subject: Re: [gradsusr] Help Regarding additon of extra t dimension ina
>> grd file
>>
>> Dear Tanmoy
>> I don't think it's easier in grads and consequently it is problematic to
>> write multi-timestep netcdf file in grads. However, it's very easy to
>> implement using cdo (as you told you have corresponding netcdf file). The
>> procedure will be the following:
>> Lets suppose you first file name (that having 12 timestep) is file120.nc.
>> Then cdo seltimestep,1/12 file120.nc first12.nc cdo mergetime file120.nc
>> first12.nc file132.nc
>>
>> Now, file132.nc will contain 132 timesteps where first 120 timesteps
>> will be from file120.nc (original) and rest 12 timestep will be from
>> first12.nc (first 12 timestep of file120.nc).
>>
>> I hope it will solve your problem.
>>
>> Cheers!!!!!!
>>
>> Best
>> Suman
>> __________________________________________________________________
>> On 12/5/19, Tanmay Sarkar <tanmays at barc.gov.in> wrote:
>> > Dear GrADS users,
>> >
>> > I have a file grd file (also having netcdf file) of t dimension
>> > varying from
>> > 1 to 120.
>> >
>> > Now I want to make a file of t dimension of  1 to (120+12= )132.
>> >
>> > The first 12 data which I am going to add is just the repetition of
>> > second
>> > 12 data in new file. (or saying in another way, I want to repeat the
>> > first
>> > 12 data of old file in t dimension to make new file with total
>> > 120+12=132 t
>> > dimension)
>> >
>> >
>> >
>> > Any idea regarding this using GrADS will be appreciable.
>> >
>> > Thank you in advance of reading my problem.
>> >
>> >
>> >
>> > --
>> >
>> > Thanks and Regards
>> >
>> > ~~~~~~~~~~~~~~~~~~~~~~~~~
>> >
>> > Tanmay Sarkar
>> >
>> > Scientific Officer D
>> >
>> > Safety Studies Section
>> >
>> > Health Physics Division
>> >
>> > Bhabha Atomic Research Centre
>> >
>> > Trombay, Mumbai -⁠ 400 085
>> >
>> > &
>> >
>> > PhD Student
>> >
>> > Homi Bhabha National Institute
>> >
>> > =========================
>> >
>> > Contacts:
>> >
>> > +91-22-25592359 (O)
>> >
>> > +91-9920134749 (M)
>> >
>> > =========================
>> >
>> >
>> >
>> >
>>
>>
>> --
>> ++++++++++++++++++++++++++++++++++++
>> Dr. Suman Maity
>> Research Scientist
>> Interdisciplinary Program in Climate Studies Indian Institute of
>> Technology Bombay Powai, Mumbai-400076, Maharashtra India.
>> ++++++++++++++++++++++++++++++++++++
>>
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>>
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