[gradsusr] ave function error

[吉田 敏哉]

Dear Eric,

Thanks for your reply,
ave function worked correctly when I changed the increment value from 4.00
to 0.02!
I appreciate your cooperation.

Best regards,
Toshiya


------------------------------------------------
Toshiya Yoshida, Master's Course Student
Disaster Prevention Research Institute, Kyoto University
吉田 敏哉 (Yoshida Toshiya)
京都大学大学院 理学研究科 地球惑星科学専攻
防災研究所 暴風雨・気象環境研究分野 修士課程2年
 E-mail: yoshida_t at storm.dpri.kyoto-u.ac.jp

2015-06-12 7:12 GMT+09:00 Eric Altshuler <ela at cola.iges.org>:

> Hello Toshiya,
>
> Your increment value of 4.0 (degrees) for xdef and ydef is much too large.
> The resulting domain will cover 4000x1000 degrees, which is absurd (the
> entire globe is 360x180). Try using a much smaller value such as 0.02
> (domain will be roughly 20x5 degrees). Since you have a Cartesian grid
> that's not associated with any geographic coordinate system, the domain's
> location and map background won't really matter.
>
> Best regards,
>
> Eric L. Altshuler
> Research Associate
> Center for Ocean-Land-Atmosphere Studies
> 253 Research Hall, Mail Stop 6C5
> George Mason University
> 4400 University Drive
> Fairfax, VA 22030 USA
>
> E-mail: ela at cola.iges.org
> Phone: (703) 993-5725
> Fax: (703) 993-5770
>
>
> ------------------------------
> *From: *"吉田 敏哉" <yoshida_t at storm.dpri.kyoto-u.ac.jp>
> *To: *gradsusr at gradsusr.org
> *Sent: *Thursday, June 11, 2015 3:04:55 AM
> *Subject: *[gradsusr] ave function error
>
>
> Dear users,
>
> I am using CFD output computed on Cartesian coordinates.
> My ctl.file is as follows:
>
> --------------------------------------------------
> DSET    ^data10
> TITLE   LES
> UNDEF   -9.99E33
> OPTIONS byteswapped
> XDEF    1000 LINEAR 0.000 4.000
> YDEF    250 LINEAR 2.000 4.000
> ZDEF    105 LEVELS
> 0.500      1.550      2.705      3.976    ...
> TDEF    1 LINEAR 00:01z01jan2000 1mn
> VARS    3
> u       105 99 u winds
> w       105 99 w winds
> v       105 99 v winds
> ENDVARS
> --------------------------------------------------------
>
> When I use ave function for Y-axis direction, I have the following error:
>
> ga-> d ave(u,y=24,y=250)
> Averaging.  dim = 1, start = 24, end = 250
> Error from AVE:  Internal logic check 100
> Operation Error:  Error from ave function
>   Error ocurred at column 1
> DISPLAY error:  Invalid expression
>   Expression = ave(u,y=24,y=250)
>
> If I change "ave(u,y=24,y=250)" to "ave(u,y=1,y=250)" , it work normally.
> In addition, "ave(u,y=1,y=250)" and "ave(u,y=1,y=23)" are exactly the same
> value so
> I think ave function isn't working normally more than y=23.
>
> I confirmed the CFD output was correct with GrADS and
> this error only occur when I use ave function for Y-axis direction.
>
> I tried using 2.0.21,2.0.2, 2.0.a9 and 2.1.a2 versions but all of them
> don't work normally.
> I didn't know what to do, do you have any ideas?
>
>
> Thank you for being patient with my English.
> Toshiya
>
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