[gradsusr] Descriptor file for TOS data from CMIP5 output
Jayakrishnan P.R
prjayakrishnan at gmail.com
Wed Apr 8 07:19:23 EDT 2015
While doing conversion in CDO as you mentioned, some error or data
manipulation might have occurred. It is the problem with CDO converted data.
Sincerely
***********************************************
Jayakrishnan.P.R
Project Scientist-C
National Centre for Medium Range Weather Forecasting
Earth System Science Organisation
Ministry of Earth Sciences
A-50, Sector 62, NOIDA -201 309, INDIA
Mob: 09496026547
Alternate Email: jkrishna at ncmrwf.gov.in
***********************************************
On Wed, Apr 8, 2015 at 4:43 PM, Rekha Bharali <rekha.bharali06 at gmail.com>
wrote:
>
> There is some problem with the resolution. If you check the lat-lon of
> your file, the resolution of both
> lat and lon is not of 1 degree. Lat from -81.5 to 29.5 is of 1 degree then
> it changes fractionally i.e.
>
> for example:
> -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5,
> -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5,
> -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5,
> -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5,
> -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5,
> -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5, -29.5,
>
> .................................................................................................
>
> .................................................................................................
> -28.50091, -28.50091, -28.50091, -28.50091, -28.50091, -28.50091,
> -28.50091, -28.50091, -28.50091, -28.50091, -28.50091, -28.50091,
> -28.50091, -28.50091, -28.50091, -28.50091, -28.50091, -28.50091,
> -28.50091, -28.50091, -28.50091, -28.50091, -28.50091, -28.50091,
>
> .................................................................................................
>
> .................................................................................................
> -27.50821, -27.50821, -27.50821, -27.50821, -27.50821, -27.50821,
> -27.50821, -27.50821, -27.50821, -27.50821, -27.50821, -27.50821,
> -27.50821, -27.50821, -27.50821, -27.50821, -27.50821, -27.50821,
> -27.50821, -27.50821, -27.50821, -27.50821, -27.50821, -27.50821, and
> so on
>
>
> Even Lon also is not of 1degree resolution. For example;
> -279.7281, -279.1842, -278.64, -278.0952, -277.5495, -277.0028, -276.4548,
> -275.9053, -275.354, -274.8007, -274.2451, -273.687, -273.1262,
> -272.5623, -271.9951, -271.4244, -270.8499, -270.2713, -269.6883,
> -269.1007, -268.5081, -267.9102, -267.3068, -266.6975, -266.082,
> -265.46,
> -264.8311, -264.195, -263.5513, -262.8996, -262.2396, -261.5709,
> -260.8931, -260.2057, -259.5083, -258.8005, -258.0818, -257.3519,
> -256.61, -255.8559, -255.0889, -254.3086, -253.5143, -252.7056,
> -251.8819, -251.0425, -250.1869, -249.3144, -248.4245, -247.5164,
> -246.5895, -245.6432, -244.6767, -243.6894, -242.6806, -241.6495,
> -240.5955, -239.5179, -238.4159, -237.2889, -236.1363, -234.9573,
> -233.7514, -232.5179, -231.2563, -229.9661, -228.647, -227.2983,
> -225.92,
> -224.5118, -223.0735, -221.6052, -220.107, -218.5791, -217.0219,
> -215.436, -213.822, -212.1808, -210.5136, -208.8214, -207.1056,
> -205.368, and so on
>
>
> So problem is not with your script but with the resolution. That is why I
> was asking for
> the range of lat-lon.
>
> Because of mismatch of resolution the image of tos got distorted.
>
>
>
> On Wed, Apr 8, 2015 at 2:16 PM, Jayakrishnan P.R <prjayakrishnan at gmail.com
> > wrote:
>
>> It seems that latitude is not 1 degree resolution. The ncdump of the file
>> is as follows
>>
>> 65.04243, 65.12708, 65.21143, 65.29546, 65.37913, 65.46243, 65.54534,
>> 65.62783, 65.70989, 65.7915, 65.87263, 65.95326, 66.03338, 66.11296,
>> 66.19199, 66.27044, 66.3483, 66.42554, 66.50217, 66.57814, 66.65345,
>> 66.72808, 66.80201, 66.87522, 66.9477, 67.01944, 67.09041, 67.1606,
>> 67.22999, 67.29858, 67.36633, 67.43325, 67.49931, 67.56451, 67.62882,
>> 67.69224, 67.75475, 67.81633, 67.87698, 67.93667, 67.99541, 68.05317,
>>
>>
>> whereas longitude is 1 degree
>>
>>
>> -279.5, -278.5, -277.5, -276.5, -275.5, -274.5, -273.5, -272.5, -271.5,
>> -270.5, -269.5, -268.5, -267.5, -266.5, -265.5, -264.5, -263.5,
>> -262.5,
>> -261.5, -260.5, -259.5, -258.5, -257.5, -256.5, -255.5, -254.5,
>> -253.5,
>> -252.5, -251.5, -250.5, -249.5, -248.5, -247.5, -246.5, -245.5,
>> -244.5,
>> -243.5, -242.5, -241.5, -240.5, -239.5, -238.5, -237.5, -236.5,
>> -235.5,
>> -234.5, -233.5, -232.5, -231.5, -230.5, -229.5, -228.5, -227.5,
>> -226.5,
>>
>> Kindly fix this.
>>
>>
>>
>> Sincerely
>> ***********************************************
>> Jayakrishnan.P.R
>> Project Scientist-C
>> National Centre for Medium Range Weather Forecasting
>> Earth System Science Organisation
>> Ministry of Earth Sciences
>> A-50, Sector 62, NOIDA -201 309, INDIA
>> Mob: 09496026547
>> Alternate Email: jkrishna at ncmrwf.gov.in
>>
>> ***********************************************
>>
>> On Wed, Apr 8, 2015 at 12:41 PM, Anis Purwaningsih <
>> anispurwaningsih49 at gmail.com> wrote:
>>
>>> Here i attached the sample file.
>>> The file had modified in CDO before..
>>>
>>> Bcc-MERGE.nc
>>> <https://docs.google.com/file/d/0BzR2oUlA1YcydEd2VUdNZTAwXzA/edit?usp=drive_web>
>>>
>>>
>>> *Regards*
>>> *Anis Purwaningsih*
>>> *Student of Applied Meteorology, Bogor Agricultural University*
>>> *Dramaga, **Bogor , West Java, *
>>> *Indonesia 16680 *
>>> *+6285695222198 <%2B6285695222198> *|
>>> * 7DF0B48E | @anispurwa*
>>>
>>> On Wed, Apr 8, 2015 at 1:03 PM, Rekha Bharali <rekha.bharali06 at gmail.com
>>> > wrote:
>>>
>>>> Actually I want to know the range means -279.5 to ? and -81.5 to ?
>>>> can you send a sample file?
>>>>
>>>> On Wed, Apr 8, 2015 at 11:24 AM, Anis Purwaningsih <
>>>> anispurwaningsih49 at gmail.com> wrote:
>>>>
>>>>> Hi Matias,
>>>>> Thanks for the answer.
>>>>> This is the dimensions of my data (result of ncdump -h)
>>>>> dimensions:
>>>>> x = 360 ;
>>>>> y = 232 ;
>>>>> time = UNLIMITED ; // (360 currently)
>>>>> nb2 = 2 ;
>>>>> the y dimension is 232
>>>>> is the problem come from the start point or the resolution?
>>>>> YDEF y 232 LINEAR *-81.5 1*
>>>>>
>>>>>
>>>>> *Regards*
>>>>> *Anis P*
>>>>>
>>>>>
>>>>> Rekha,
>>>>> My data is global data.
>>>>> how to increaced the value of XDEF x and YDEF y?
>>>>>
>>>>> *Regards*
>>>>> *Anis P*
>>>>>
>>>>>
>>>>> On Wed, Apr 8, 2015 at 12:26 PM, Rekha Bharali <
>>>>> rekha.bharali06 at gmail.com> wrote:
>>>>>
>>>>>> I think Matias is write. The same problem happens with me. I just
>>>>>> increased the values of XDEF x and YDEF y by one grid point, then it works.
>>>>>> What is the spatial coverage of your data. Then I may help you.
>>>>>>
>>>>>> On Wed, Apr 8, 2015 at 10:44 AM, Matias Mendez <
>>>>>> matias.mendezp at gmail.com> wrote:
>>>>>>
>>>>>>> Hello Anis:
>>>>>>>
>>>>>>> I think the problem is on Y dimensions:
>>>>>>>
>>>>>>> YDEF y *232* LINEAR -81.5 1
>>>>>>>
>>>>>>> Your picture shows latitude > 90N! (approximately 150N)
>>>>>>>
>>>>>>> You can get dimensions of your file with the following instruction:
>>>>>>>
>>>>>>> ncdump -h Bcc-merge.nc
>>>>>>>
>>>>>>> Good luck.
>>>>>>>
>>>>>>> Regards,
>>>>>>> Matias
>>>>>>>
>>>>>>>
>>>>>>> 2015-04-07 23:51 GMT-05:00 Anis Purwaningsih <
>>>>>>> anispurwaningsih49 at gmail.com>:
>>>>>>>
>>>>>>> Rekha,
>>>>>>>> Thanks for the answer.
>>>>>>>> The lat-lon is not in reverse order.
>>>>>>>> I had tried to add OPTION yrev, but it doesn't work.
>>>>>>>> With this email, i attach the result of my descriptor file.
>>>>>>>> The picture will explain what i mean (lat-lon not match).
>>>>>>>>
>>>>>>>>
>>>>>>>> *Regards*
>>>>>>>> *Anis P*
>>>>>>>>
>>>>>>>> On Wed, Apr 8, 2015 at 11:02 AM, Rekha Bharali <
>>>>>>>> rekha.bharali06 at gmail.com> wrote:
>>>>>>>>
>>>>>>>>> By "the lon and lat didn't match" do you mean lat-lon is in
>>>>>>>>> reverse
>>>>>>>>> order. Then you can try:
>>>>>>>>>
>>>>>>>>> OPTIONS yrev
>>>>>>>>>
>>>>>>>>> Hope it will help
>>>>>>>>>
>>>>>>>>> With regards
>>>>>>>>> Rekha
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>>
>>>>>>>>> .......................................................................
>>>>>>>>> Rekha Bharali Gogoi
>>>>>>>>> Scientist 'SC'
>>>>>>>>> NE-SAC
>>>>>>>>> Dept. of Space
>>>>>>>>> Govt. of India
>>>>>>>>> Meghalaya
>>>>>>>>> _______________________________________________
>>>>>>>>> gradsusr mailing list
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>>>>>>>>>
>>>>>>>>
>>>>>>>>
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>>>>>>>>
>>>>>>>
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>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>>
>>>>>> .......................................................................
>>>>>> Rekha Bharali Gogoi
>>>>>> Scientist 'SC'
>>>>>> NE-SAC
>>>>>> Dept. of Space
>>>>>> Govt. of India
>>>>>> Meghalaya
>>>>>>
>>>>>> _______________________________________________
>>>>>> gradsusr mailing list
>>>>>> gradsusr at gradsusr.org
>>>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>>>
>>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> gradsusr mailing list
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>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> .......................................................................
>>>> Rekha Bharali Gogoi
>>>> Scientist 'SC'
>>>> NE-SAC
>>>> Dept. of Space
>>>> Govt. of India
>>>> Meghalaya
>>>>
>>>> _______________________________________________
>>>> gradsusr mailing list
>>>> gradsusr at gradsusr.org
>>>> http://gradsusr.org/mailman/listinfo/gradsusr
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>>>>
>>>
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>>
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>>
>
>
> --
> .......................................................................
> Rekha Bharali Gogoi
> Scientist 'SC'
> NE-SAC
> Dept. of Space
> Govt. of India
> Meghalaya
>
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
>
>
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