[ncl-talk] Y axis ticks

Soma Roy somaroy892 at gmail.com
Thu Jun 28 11:56:52 MDT 2018


​
 spatial_leh.nc
<https://drive.google.com/file/d/1Qa144nlu5gSNitlM6i5YT0F8_bZa-Wme/view?usp=drive_web>
​Sending you the sample file here as I am unable to put it in ftp.

Soma

On Thu, Jun 28, 2018 at 10:54 PM, Kevin Hallock <hallock at ucar.edu> wrote:

> Hi Soma,
>
> It’s hard to determine exactly what the problem is without a copy of your
> data file to test the script myself, but I suspect there may be something
> odd happening with the time_axis_labels and gsn_csm_hov calls:
>  time_axis_labels(ts&time,res,restick)
>  plot = gsn_csm_hov(wks,xDay(:,:,{78}),res)  ; lat vs time.
>
> In particular, I noticed that the time dimensions on the variables ts and
> xDay are different sizes (248 for ts, 31 for xDay). You may want to try
> using xDay&time in your time_axis_labels call, although you might also
> need to adjust the value of restick at ttmMajorStride to account for the
> smaller time dimension on xDay.
>
> If you are still having trouble generating correct Y-axis labels after
> trying this, would you perhaps be able to provide us with a copy of your
> data file? (See uploading instructions: https://www.ncl.
> ucar.edu/ftp_files.shtml)
>
> I hope this helps,
> Kevin
>
> On Jun 28, 2018, at 10:26 AM, Soma Roy <somaroy892 at gmail.com> wrote:
>
> Hello,
>
> I am trying to calculate daily mean values from daily 4 time steps and
> plot a date vs latitude plot.
>
> Date on Y-axis is not coming clearly.
>
> PrintVarSummary of the data is as follows;
>
> Variable: tem
> Type: float
> Total Size: 6416172 bytes
>             1604043 values
> Number of Dimensions: 3
> Dimensions and sizes:   [time | 123] x [latitude | 161] x [longitude | 81]
> Coordinates:
>             time: [969336..970068]
>             latitude: [ 0..40]
>             longitude: [65..85]
> Number Of Attributes: 6
>   missing_value :       -32767
>   missing_value_original :      -32767
>   _FillValue :  -32767
>   _FillValue_original : -32767
>   long_name :   2 metre temperature
>   units :       K
>
> Variable: cd_date
> Type: double
> Total Size: 1992 bytes
>             249 values
> Number of Dimensions: 1
> Dimensions and sizes:   [249]
> Coordinates:
> Number Of Attributes: 2
>   units :       days since 1990-01-01 00:00:00
>   calendar :    gregorian
>
>
> Variable: cd_date
> Type: double
> Total Size: 1992 bytes
>             249 values
> Number of Dimensions: 1
> Dimensions and sizes:   [249]
> Coordinates:
> Number Of Attributes: 2
>   units :       days since 1990-01-01 00:00:00
>   calendar :    gregorian
> (0)     2010080100
> (1)     2010080106
> (2)     2010080112
> (3)     2010080118
> (4)     2010080200
> (5)     2010080206
> (6)     2010080212
> (7)     2010080218
> ........................................
> (120)   2010083100
> (121)   2010083106
> (122)   2010083112
> (123)   2010083118
>
> (124)   2010080103
> (125)   2010080109
> (126)   2010080115
> (127)   2010080121
> (128)   2010080203
> (129)   2010080209
> .........................................
> (244)   2010083103
> (245)   2010083109
> (246)   2010083115
> (247)   2010083121
> (248)   2010090100
>
> Variable: temp
> Type: float
> Total Size: 12988836 bytes
>             3247209 values
> Number of Dimensions: 3
> Dimensions and sizes:   [time | 249] x [latitude | 161] x [longitude | 81]
> Coordinates:
>             time: [969336..970080]
>             latitude: [ 0..40]
>             longitude: [65..85]
> Number Of Attributes: 6
>   units :       K
>   long_name :   2 metre temperature
>   _FillValue_original : -32767
>   _FillValue :  -32767
>   missing_value_original :      -32767
>   missing_value :       -32767
>
> Variable: ts1
> Type: short
> Total Size: 6468336 bytes
>             3234168 values
> Number of Dimensions: 3
> Dimensions and sizes:   [time | 248] x [latitude | 161] x [longitude | 81]
> Coordinates:
>             time: [969336..970077]
>             latitude: [ 0..40]
>             longitude: [65..85]
> Number Of Attributes: 6
>   scale_factor :        0.0008040587614255413
>   add_offset :  289.9817757049943
>   _FillValue :  -32767
>   missing_value :       -32767
>   units :       K
>   long_name :   2 metre temperature
>
> Variable: ts
> Type: float
> Total Size: 12936672 bytes
>             3234168 values
> Number of Dimensions: 3
> Dimensions and sizes:   [time | 248] x [latitude | 161] x [longitude | 81]
> Coordinates:
>             time: [969336..970077]
>             latitude: [ 0..40]
>             longitude: [65..85]
> Number Of Attributes: 1
>   _FillValue :  -32767
>
> Variable: tim
> Type: integer
> Total Size: 996 bytes
>             249 values
> Number of Dimensions: 1
> Dimensions and sizes:   [time | 249]
> Coordinates:
>             time: [969336..970080]
> Number Of Attributes: 3
>   units :       hours since 1900-01-01 00:00:0.0
>   long_name :   time
>   calendar :    gregorian
>
> Variable: xDay
> Type: float
> Total Size: 1617084 bytes
>             404271 values
> Number of Dimensions: 3
> Dimensions and sizes:   [time | 31] x [latitude | 161] x [longitude | 81]
> Coordinates:
>             time: [969336..970056]
>             latitude: [ 0..40]
>             longitude: [65..85]
> Number Of Attributes: 8
>   _FillValue :  -32767
>   missing_value :       -32767
>   missing_value_original :      -32767
>   _FillValue_original : -32767
>   long_name :   2 metre temperature
>   units :       K
>   time :        969336
>   NCL_tag :     calculate_daily_values: arith=avg
>
> Output figure file and script are attached below.
>
> Kindly inform me how to fix it.
>
> Thanks,
> Soma
>
>
> <time_lat.png><test.ncl>_______________________________________________
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