[gradsusr] Descriptor file for TOS data from CMIP5 output
Rekha Bharali
rekha.bharali06 at gmail.com
Wed Apr 8 07:13:55 EDT 2015
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
>>>>>>>> gradsusr at gradsusr.org
>>>>>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
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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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>>>>
>>>
>>>
>>> --
>>> .......................................................................
>>> 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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--
.......................................................................
Rekha Bharali Gogoi
Scientist 'SC'
NE-SAC
Dept. of Space
Govt. of India
Meghalaya
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