<div>Thanks for your response Dr. Huddleston,</div>
<div>I just downloaded opengrads2.0. I have found all the files you mention, but i have trouble following the rest. I'm new to grads and computer programming. It would help me out a lot to learn some of the basics of using grads. For example, </div>
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<div>'gfortran<a></a> -o readsnow<a></a> readsnow.f<a></a>'</div>
<div>does grads have a compiler in it or is this something i need to download seperately? Is there a tutorial for grads basic functions that could help me learn more.</div>
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<div>Also I'm not sure what "Uncomment the open(unit=93 line and edit it to read the file wk2010<a></a> in your local path" means. </div>
<div> </div>
<div>I know that most grads users have far better understanding of this kind of stuff then me, but the grads webpage says</div>
<div>"Users at all levels are encouraged to post questions and answers on the basics of getting started".</div>
<div> </div>
<div>Thanks,</div>
<div>Bob<br><br></div>
<div class="gmail_quote">On Wed, May 5, 2010 at 12:37 PM, Huddleston, John <span dir="ltr"><<a href="mailto:Huddleston@cira.colostate.edu">Huddleston@cira.colostate.edu</a>></span> wrote:<br>
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<div dir="ltr"><font color="#000000" size="2" face="Tahoma">Bob,</font></div>
<div dir="ltr"><font size="2" face="tahoma"></font> </div>
<div dir="ltr"><font size="2" face="tahoma">Use a ftp client and go to <a href="ftp://ftp.cpc.ncep.noaa.gov/" target="_blank">ftp.cpc.ncep.noaa.gov</a><a></a> and then into the wd52dg<a></a>/snow directory. </font></div>
<div dir="ltr"><font size="2" face="tahoma"></font> </div>
<div dir="ltr"><font size="2" face="tahoma">There is a wkly_89x89<a></a> directory. Download wk2010<a></a>.</font></div>
<div dir="ltr"><font size="2" face="tahoma"></font> </div>
<div dir="ltr"><font size="2" face="tahoma">There is a progs<a></a> directory and the readsnow.f<a></a> file. Download readsnow.f<a></a> file. Uncomment the open(unit=93 line and edit it to read the file wk2010<a></a> in your local path. Edit the open(unit=95 line to save the output file of a name of your choosing. Compile the application using 'gfortran<a></a> -o readsnow<a></a> readsnow.f<a></a>'. Run it './readsnow<a></a>'</font></div>
<div dir="ltr"><font size="2" face="tahoma"></font> </div>
<div dir="ltr"><font size="2" face="tahoma">
<div dir="ltr"><font size="2" face="tahoma">There is a grads_snw<a></a> directory and a control file. Download plt_snw.ctl<a></a> and edit the top line to be the same name as your output file from unit-95 above.</font></div>
<div dir="ltr"><font face="tahoma"></font> </div>
<div dir="ltr"><font face="tahoma">grads -l</font></div>
<div dir="ltr"><font face="tahoma">open plt_snw.ctl<a></a></font></div>
<div dir="ltr"><font face="tahoma">d snow</font></div>
<div dir="ltr"><font face="tahoma"></font> </div>
<div dir="ltr"><font face="tahoma">If any of this makes no sense you need to take some basic IT and programming courses. </font></div>
<div dir="ltr"><font face="tahoma"></font> </div>
<div dir="ltr"><font face="tahoma">John Huddleston, PhD, PE</font></div>
<div dir="ltr"><font size="2" face="tahoma"></font> </div></font></div>
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<font color="#000000" size="2" face="Tahoma"><b>From:</b> <a href="mailto:gradsusr-bounces@gradsusr.org" target="_blank">gradsusr-bounces@gradsusr.org</a> [<a href="mailto:gradsusr-bounces@gradsusr.org" target="_blank">gradsusr-bounces@gradsusr.org</a>] On Behalf Of bob duker [<a href="mailto:dukerbob@gmail.com" target="_blank">dukerbob@gmail.com</a>]<br>
<b>Sent:</b> Tuesday, May 04, 2010 11:08 PM<br><b>To:</b> <a href="mailto:gradsusr@gradsusr.org" target="_blank">gradsusr@gradsusr.org</a><br><b>Subject:</b> [gradsusr] Help new to grads<br></font><br></div>
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<p>Hello All,<br>I'm doing snow Research and looking for a program to covert the climate prediction center (CPC) Northern Hemosphere raw weekly snow data (in 1's and 0's) into a useable number. I don't have much coding experience or computer science background, so i'm not sure how to covert the data myself, or what program to use. Also I don't have any fortran compiler. The CPC does covert the data into a nice table format, but they don't keep it up todate. Their website is <a href="http://www.cpc.ncep.noaa.gov/data/snow/" target="_blank">http://www.cpc.ncep.noaa.gov/data/snow/</a>. On their website they have a link to grads.<br>
<br>The program they give for reading weekly 89*89 snow data is<br> <br>PROGRAM AREA<br>C*********************************************************************<br>C<br>C THIS PROGRAM SIMPLY READS IN THE SNOW DATA AND<br>C WRITES IT OUT FOR A GIVEN YEAR.<br>
C<br>C VARIABLES:<br>C<br>C ISNDAT - 89 X 89 SNOW DATA <br>C<br>C FILES:<br>C<br>C A YEAR OF WEEKLY SNOW DATA IS STORED IN A FILE WITH<br>C THE NAMING CONVENTION:<br>C<br>C wk19xx xx - is the year (ex. wk1973)<br>
C<br>C*********************************************************************</p>
<p> DIMENSION ISNDAT(89,89)<br> CHARACTER*1 ICHAR1,ICHAR2<br> OPEN(11,FILE='INFILE',<br> * FORM='FORMATTED',ACCESS='SEQUENTIAL')<br> OPEN(12,FILE='OUTFILE',<br> * FORM='FORMATTED',ACCESS='SEQUENTIAL')<br>
DO 199 LP = 1,52<br>C*********************************************************************<br>C<br>C READS IN THE WEEKLY SNOW DATA.<br>C<br>C*********************************************************************<br>
DO 200 I = 1,89<br> READ(11,100,END=10) IYEARS,IWKS,IROW,ICHAR1,(ISNDAT(I,J),J=1,45)<br> 100 FORMAT (I4,2I2,A1,45I1)<br> READ(11,101,END=10)IYEARS,IWKS,IROW,ICHAR2,(ISNDAT(I,J),J=46,89)<br> 101 FORMAT (I4,2I2,A1,44I1)<br>
C*********************************************************************<br>C<br>C WRITE OUT THE WEEKLY SNOW DATA.<br>C<br>C*********************************************************************<br> WRITE(12,100) IYEARS,IWKS,IROW,ICHAR1,(ISNDAT(I,J),J=1,45)<br>
WRITE(12,101) IYEARS,IWKS,IROW,ICHAR2,(ISNDAT(I,J),J=46,89)<br> 200 CONTINUE<br>READ(11,102) ICONST<br> 102 FORMAT(I4)<br>WRITE(12,102) ICONST<br>C<br> 199 CONTINUE<br> 10 CONTINUE<br>999 STOP<br>
END</p>
<p>I'm using windows 7 64bit operating system. My question is how do i use grads to view the snow data or is there a fortran compiler the above program will work on that i should use instead?<br>Thanks,<br>Bob R Duke</p>
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