<html><div style='background-color:'><P>Dear users,</P>
<P>I saw the problems of Sam and also replies of YY. However I have also seen the similar problems in my configuration. I am using WRFV2.1 and FNL data as input. I saw that there is a huge temperature difference at the surface starting from afternoon to late night. I feel, the land surface may be behaving in such a way to give this kind of result or otherwise the surface is so dry to respond like this. Thus it seems the model is to be tuned properly to get the proper result. As I compared the result at native sigma level to observations in a summer time of 24 hours, I got the observations to be very close to the model result. Thus I feel it the model which needs to be tuned properly to get a good result.<BR><BR>regards,</P>
<P>-Jagabandhu</P>CAS, IIT DELHI, INDIA<BR><BR><BR>
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<P>Jagabandhu Panda</P>
<P>Centre For Atmospheric Sciences</P>
<P>IIT Delhi</P>
<P>Hauz Khas</P>
<P>New Delhi-16</P>
<P>Ph-(011)26596052(lab)</P>
<P>############################</P></DIV>
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From: <I>wrf-users-request@ucar.edu</I><BR>Reply-To: <I>wrf-users@ucar.edu</I><BR>To: <I>wrf-users@ucar.edu</I><BR>Subject: <I>Wrf-users Digest, Vol 17, Issue 5</I><BR>Date: <I>Sun, 22 Jan 2006 12:01:04 -0700</I><BR>>Send Wrf-users mailing list submissions to<BR>> wrf-users@ucar.edu<BR>><BR>>To subscribe or unsubscribe via the World Wide Web, visit<BR>> http://mailman.ucar.edu/mailman/listinfo/wrf-users<BR>>or, via email, send a message with subject or body 'help' to<BR>> wrf-users-request@ucar.edu<BR>><BR>>You can reach the person managing the list at<BR>> wrf-users-owner@ucar.edu<BR>><BR>>When replying, please edit your Subject line so it is more specific<BR>>than "Re: Contents of Wrf-users digest..."<BR>><BR>><BR>>Today's Topics:<BR>><BR>> 1. Re: Wrf-users Digest, Vol 17, Issue 4 (Y. Yamasaki)<BR>> 2. Input error or fluke ? (Sam
Drinkard)<BR>><BR>><BR>>----------------------------------------------------------------------<BR>><BR>>Message: 1<BR>>Date: Sun, 22 Jan 2006 12:21:16 +0000<BR>>From: "Y. Yamasaki" <yamasaki@fis.ua.pt><BR>>Subject: [Wrf-users] Re: Wrf-users Digest, Vol 17, Issue 4<BR>>To: wrf-users@ucar.edu<BR>>Message-ID: <web-6956653@controller.cgpmail.ua.pt><BR>>Content-Type: text/plain; charset="ISO-8859-1"; format="flowed"<BR>><BR>>Hi !<BR>>It seems to me that you are using too small domain (I<BR>>suppose that you are running the model using GFS grib2<BR>>data with no nesting ). Why dont'you try to increese the<BR>>size of your domain.<BR>>good luck<BR>>yy<BR>><BR>>Em Fri, 20 Jan 2006 12:01:20 -0700<BR>> wrf-users-request@ucar.edu escreveu:<BR>> > Send Wrf-users mailing list submissions to<BR>> >
wrf-users@ucar.edu<BR>> ><BR>> > To subscribe or unsubscribe via the World Wide Web,<BR>> >visit<BR>> > http://mailman.ucar.edu/mailman/listinfo/wrf-users<BR>> > or, via email, send a message with subject or body<BR>> >'help' to<BR>> > wrf-users-request@ucar.edu<BR>> ><BR>> > You can reach the person managing the list at<BR>> > wrf-users-owner@ucar.edu<BR>> ><BR>> > When replying, please edit your Subject line so it is<BR>> >more specific<BR>> > than "Re: Contents of Wrf-users digest..."<BR>> ><BR>> ><BR>> > Today's Topics:<BR>> ><BR>> > 1. Near Surface Temperatures (Sam Drinkard)<BR>> ><BR>> ><BR>> > ----------------------------------------------------------------------<BR>> ><BR>> > Message: 1<BR>> > Date: Thu, 19 Jan 2006 13:50:54
-0500<BR>> >From: Sam Drinkard <sam@wa4phy.net><BR>> > Subject: [Wrf-users] Near Surface Temperatures<BR>> > To: wrf-users@ucar.edu<BR>> > Message-ID: <43CFDF8E.2010307@wa4phy.net><BR>> > Content-Type: text/plain; charset=ISO-8859-1;<BR>> >format=flowed<BR>> ><BR>> > List:<BR>> ><BR>> > I've got WRF v.2.1 up and running real data, but I am<BR>> >not impressed<BR>> > with near surface or surface temperatures. I typically<BR>> >see in my<BR>> > domain(s) anywhere from 5, to as much as 10 degrees<BR>> >difference between<BR>> > observed and forecast. I'm curious if this is something<BR>> >everyone has to<BR>> > deal with, or if perhaps something in my setup is<BR>> >causing these<BR>> > discrepancies. The largest temp difference usually<BR>> >occurs in
the<BR>> > afternoons, and WRF is running on average, 7-9 degrees<BR>> >too cool. In the<BR>> > mornings, the model is not picking up on the low temps<BR>> >either, but<BR>> > errors on the order of 2-3 degrees are common. I can<BR>> >live with that.<BR>> > The current setup for the inner domain is 12km, 34<BR>> >levels, the lower<BR>> > ones being 1.000, 0.999, 0.997, and 0.994. The rest<BR>> >above that are<BR>> > defaults from SI. The model is initialized via the NAM.<BR>> ><BR>> > As for physics, the run is set with::<BR>> ><BR>> > mp_physics=5 (Ferrier (new ETA))<BR>> > ra_lw = 1, (rrtm scheme), radt = 33<BR>> > sf_sfclay_physics = 2 (Monin-Obukhov)<BR>> > sf_surface_physics = 2 (Noah LSM)<BR>> > bl_pbl_physics = 2 (Mellor_Yamada_Janjic)<BR>> > cu_physics = 1
(Kain-Fritsch)<BR>> ><BR>> > I've played around with various schemes trying to find a<BR>> >mixture of<BR>> > things that would help bring surface temps in line with<BR>> >where they<BR>> > should be, but no combinations I've tried have made any<BR>> >significant<BR>> > difference. About the only thing I can see that does<BR>> >appear to be<BR>> > mostly correct is the surface temp of the Clark Hill<BR>> >lake, approx 15nm<BR>> > north of me. I do see as much as 5-7 degrees difference<BR>> >at times over<BR>> > water, vs land.<BR>> ><BR>> > I'd appreciate very much if someone has some suggestions<BR>> >to try or<BR>> > anything that might help get surface temps in line.<BR>> ><BR>> > Graciously thanking you,<BR>> ><BR>> ><BR>> > Sam<BR>>
><BR>> ><BR>> > ------------------------------<BR>> ><BR>> > _______________________________________________<BR>> > Wrf-users mailing list<BR>> > Wrf-users@ucar.edu<BR>> > http://mailman.ucar.edu/mailman/listinfo/wrf-users<BR>> ><BR>> ><BR>> > End of Wrf-users Digest, Vol 17, Issue 4<BR>> > ****************************************<BR>><BR>><BR>>------------------------------<BR>><BR>>Message: 2<BR>>Date: Sun, 22 Jan 2006 11:29:39 -0500<BR>>From: Sam Drinkard <sam@wa4phy.net><BR>>Subject: [Wrf-users] Input error or fluke ?<BR>>To: wrf-users@ucar.edu, rcgillia@yahoo.com<BR>>Message-ID: <1137947379.3952.24.camel@thunder.wa4phy.net><BR>>Content-Type: text/plain; charset="us-ascii"<BR>><BR>>I've captured this error text below from the rsl.error.0000 file on<BR>>several
occasions, but it appears only on startup. One WRF starts<BR>>running, you can't find this message in the rsl.error.0000 file. I<BR>>assume it gets overwritten by something. Is this something that needs<BR>>to be fixed, or exactly what is going on. The model runs, and there are<BR>>no other errors in any other places that I'm aware of. I could not find<BR>>any file called "input_wrf.b".<BR>><BR>>in input_aux_model_input1 : config_flags%io_form_auxinput1 2<BR>>calling input_wrf<BR>>in input_aux_model_input1 : config_flags%io_form_auxinput1 2<BR>>calling input_wrf<BR>>-------------- FATAL CALLED ---------------<BR>>FATAL CALLED FROM FILE: input_wrf.b LINE: 112<BR>>DX and DY do not match from the namelist and the input file<BR>>-------------------------------------------<BR>>[0] MPI Abort by user Aborting program !<BR>>[0] Aborting
program!<BR>><BR>>Any pointers or help appreciated<BR>><BR>>Regards,<BR>><BR>>Sam<BR>>-------------- next part --------------<BR>>An HTML attachment was scrubbed...<BR>>URL: http://mailman.ucar.edu/pipermail/wrf-users/attachments/20060122/a1ae09a0/attachment-0001.htm<BR>><BR>>------------------------------<BR>><BR>>_______________________________________________<BR>>Wrf-users mailing list<BR>>Wrf-users@ucar.edu<BR>>http://mailman.ucar.edu/mailman/listinfo/wrf-users<BR>><BR>><BR>>End of Wrf-users Digest, Vol 17, Issue 5<BR>>****************************************<BR></FONT></BLOCKQUOTE></div><br clear=all><hr>How good are you in a Formula One car? <a href="http://g.msn.com/8HMAENIN/2740??PS=47575" target="_top">Play now</a> </html>