<div dir="ltr">GrADS users,<div><br></div><div>The GLDAS data is working with the masks. However, I am trying to get MERRA2 data to work with the masks now. I keep getting an error saying: </div><div><br></div><div><div>Data Request Error: Invalid dimension expression</div><div> Attempt to set or modify varying dimension</div><div> Variable = prectot.2, Dimension = 0 </div><div>Operation Error: Error from maskout function</div><div>Operation Error: Error from aave function</div><div> Error ocurred at column 1</div><div>DISPLAY error: Invalid expression </div><div> Expression = aave(maskout(prectot.2(x=1,y=1),mask.1(x=1,y=1,time=00:30z01feb1980)),lon=-179.5,lon=179.5,lat=-89.5,lat=89.5)</div></div><div><br></div><div>As you can see, I tried to fix x and y grid points because I kept getting that error, but this did nothing. </div><div><br></div><div>The result of 'q dims' of the mask file is:</div><div><br></div><div><div>Default file number is: 1 </div><div>X is fixed Lon = 0 X = 180.5</div><div>Y is fixed Lat = -90 Y = 0.5</div><div>Z is fixed Lev = 0 Z = 1</div><div>T is fixed Time = 00:30Z01DEC1991 T = 143</div><div>E is fixed Ens = 1 E = 1</div></div><div><br></div><div>The result of 'q dims' of the MERRA2 file is: </div><div><br></div><div><div>Default file number is: 2 </div><div>X is fixed Lon = 0 X = 1</div><div>Y is fixed Lat = -90 Y = 1</div><div>Z is fixed Lev = 0 Z = 1</div><div>T is fixed Time = 00:30Z01DEC1991 T = 143</div><div>E is fixed Ens = 1 E = 1</div></div><div><br></div><div><br></div><div>How can I get the x and y grid points to match up?</div><div><br></div><div>-Justin</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jul 5, 2016 at 3:34 PM, Jennifer M Adams <span dir="ltr"><<a href="mailto:jadams21@gmu.edu" target="_blank">jadams21@gmu.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">
<br>
<div><span class="">
<div>On Jul 5, 2016, at 3:21 PM, Justin Hicks <<a href="mailto:jhicks2014@gmail.com" target="_blank">jhicks2014@gmail.com</a>> wrote:</div>
<br>
</span><blockquote type="cite">
<div dir="ltr">Jennifer,
<div><br>
</div><span class="">
<div>I am still getting values of 0 in my text file (and on the terminal). Typing in a 'q dims' command gives LEV=0 Z=1 for the mask and LEV=0 Z=0 for the GLDAS file. Could the inconsistency be the issue?</div>
</span></div>
</blockquote>
Maybe. Try this:</div>
<div>
<blockquote type="cite">
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div style="word-wrap:break-word">
<blockquote type="cite">
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div dir="ltr">evap.2(z=1),mask.1(z=1,time=00Z01JAN1979)</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
</blockquote><span class="">
<blockquote type="cite">
<div dir="ltr">
<div> </div>
<div><br>
</div>
<div>There aren't any errors displayed on the terminal. And just to note, taking out the while statement gives me monthly values on the terminal when the maskout function is in use, so I assume the issue is within the while statement.</div>
</div>
</blockquote></span>
Put some more ‘say’ statements in there to make sure you’re parsing and pasting all the strings correctly. </div><div><div class="h5">
<div>—Jennifer</div>
<div><br>
<blockquote type="cite">
<div dir="ltr">
<div><br>
</div>
<div>-Justin</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Jul 5, 2016 at 2:47 PM, Jennifer M Adams <span dir="ltr">
<<a href="mailto:jadams21@gmu.edu" target="_blank">jadams21@gmu.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word"><br>
<div><br>
<div><span>
<div>On Jul 5, 2016, at 1:51 PM, Justin Hicks <<a href="mailto:jhicks2014@gmail.com" target="_blank">jhicks2014@gmail.com</a>> wrote:</div>
<br>
</span>
<blockquote type="cite">
<div dir="ltr">Jennifer,
<div><br>
</div>
<div>How would I go about making the lat/lon values fixed? I know the aave function needs 4 different lat/lon arguments. Would this just be 'd ave(.......,lon=-179.5,lon=-179.5,lat=-89.5,lat=-89.5)’
</div>
</div>
</blockquote>
Correct. These args provide the range for your average. <br>
<blockquote type="cite">
<div dir="ltr">
<div> or 'd ave(.......,x=1,x=1,y=1,y=1)’?</div>
</div>
</blockquote>
No. This will give you an average over only one grid point.</div>
<div><br>
</div>
<div>The ‘set x 1’ and ’set y 1’ commands are there to restrict the dimension environment to match the result that comes out of aave(), which does not vary in X or Y. Those dimensions need to be fixed, and it doesn’t matter at all what they are, it could just
as easily be ‘set x 22’ and ‘set y 89’.</div>
<span><font color="#888888">
<div><br>
</div>
<div>—Jennifer</div>
</font></span>
<div>
<div>
<div><br>
</div>
<div><br>
<blockquote type="cite">
<div dir="ltr">
<div><br>
</div>
<div>-Justin</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Jul 5, 2016 at 12:25 PM, Jennifer M Adams <span dir="ltr">
<<a href="mailto:jadams21@gmu.edu" target="_blank">jadams21@gmu.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word">Hi, Justin —
<div>Your dimension environment isn’t set properly. When using the aave() function, make sure the lat and lon dimensions are fixed — you’ve got them varying. Also, the LEV dimension value at z=1 may be different for your two data sets. Put in a 'say result’
statement after each display and it should print out more than just the warning message; it should show you what the dimensions are for the variables in your expression, and that should guide you as to where the mismatch is. I also think you can remove most
of the code before the 'while’ statement:</div>
<div><br>
</div>
<div>‘open /data2/control/Region15_AFR_mask_TEST.nc'</div>
<span>
<div>'open /data2/control/GLDAS_VIC10_M.ctl'</div>
<div>‘set dfile 2’</div>
</span>
<div>‘set x 1’</div>
<div>‘set y 1’</div>
<div>‘set gxout print'</div>
<div>‘set prnopts %6.2f 1 1’</div>
<div>nmonths=428</div>
<div>i=1</div>
<div>while (i<nmonths)</div>
<div> ‘set t ‘i</div>
<div> ...</div>
<div> ‘d aave ….' </div>
<div> say ‘t=’t’ </div>
<div> say result</div>
<div> ….</div>
<div> i=i+1</div>
<div>endwhile</div>
<div><br>
</div>
<div>—Jennifer</div>
<div>
<div>
<div><br>
<div>
<div>On Jul 5, 2016, at 12:00 PM, Justin Hicks <<a href="mailto:jhicks2014@gmail.com" target="_blank">jhicks2014@gmail.com</a>> wrote:</div>
<br>
<blockquote type="cite">
<div dir="ltr">To those who responded,
<div><br>
</div>
<div>Thank you for the responses! Those seemed to do the trick. However, instead of the 'endwhile' error, I am now receiving this error:</div>
<div><br>
</div>
<div>Data Request Warning: Request is completely outside file limits<br>
</div>
<div><br>
</div>
<div>This error is repeated 9 times. The text file that is created also contains only one column with each value being 0.0. </div>
<div><br>
</div>
<div>-Justin</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Tue, Jul 5, 2016 at 11:38 AM, sushant puranik <span dir="ltr">
<<a href="mailto:sushantpuranik@gmail.com" target="_blank">sushantpuranik@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<p dir="ltr">Along with the suggested changes simply press enter button once at ending line of your script.</p>
<div class="gmail_quote">
<div>
<div>On 5 Jul 2016 8:45 pm, "Justin Hicks" <<a href="mailto:jhicks2014@gmail.com" target="_blank">jhicks2014@gmail.com</a>> wrote:<br type="attribution">
</div>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div>
<div>
<div dir="ltr">GrADS users,
<div><br>
</div>
<div>I am running a script that should output values into a 2 column table. The first column will be the time (monthly in the form of 00Z01JAN1979) and the second column will be the value of the variable (evap) at that time. After running the code below, I
receive an error saying "Unable to locate ENDWHILE statement for the WHILE statement at line 18."</div>
<div><br>
</div>
<div>This is the script I'm running; everything before the while statement is setting up a mask (in this case, the mask only outputs values for Africa):</div>
<div><br>
</div>
<div>
<div>'reinit'</div>
<div>'open /data2/control/Region15_AFR_mask_TEST.nc'</div>
<div>'set t 1 last'</div>
<div>'set dfile 1'</div>
<div>'set lon -179.5 179.5'</div>
<div>'set lat -89.5 89.5'</div>
<div>'open /data2/control/GLDAS_VIC10_M.ctl'</div>
<div>'set dfile 2'</div>
<div>'set lon -179.5 179.5'</div>
<div>'set lat -89.5 89.5'</div>
<div>'set time 00Z01JAN1979 00Z01JAN2016'</div>
<div>'set dfile 1'</div>
<div>'d aave(maskout(evap.2,mask.1(time=00Z01JAN1979)),lon=-179.5,lon=179.5,lat=-89.5,lat=89.5)'</div>
<div>'set gxout print'</div>
<div>'set prnopts %6.2f 1 1'</div>
<div>nmonths = 428</div>
<div>i = 1</div>
<div>while (i <= nmonths)</div>
<div> 'set t 'i</div>
<div> 'q time'</div>
<div>rectime = sublin(result,5)</div>
<div>recdate = subwrd(rectime,6) </div>
<div> 'd aave(maskout(evap.2,mask.1(time=00Z01JAN1979)),lon=-179.5,lon=179.5,lat=-89.5,lat=89.5)'</div>
<div>evap = sublin(result,2)</div>
<div>evap = subwrd(evap,1)</div>
<div>string = rectime' 'evap</div>
<div> 'write('GLDAS_MASK_DATA.txt' , string ,append)'</div>
<div> i = i + 1</div>
<div>endwhile</div>
</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>I'm not sure why GrADS is giving me this error.</div>
<div><br>
</div>
<div>-Justin</div>
</div>
<br>
</div>
</div>
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<div>
<div style="letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
<div style="letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
<div style="font-size:12px">--</div>
<div style="font-size:12px">Jennifer Miletta Adams<br>
Center for Ocean-Land-Atmosphere Studies (COLA)<br>
George Mason University<br>
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<div style="letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
<div style="letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
<div style="font-size:12px">--</div>
<div style="font-size:12px">Jennifer Miletta Adams<br>
Center for Ocean-Land-Atmosphere Studies (COLA)<br>
George Mason University<br>
<br>
<br>
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<div style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
<div style="color:rgb(0,0,0);letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;word-wrap:break-word">
<div style="font-size:12px">--</div>
<div style="font-size:12px">Jennifer Miletta Adams<br>
Center for Ocean-Land-Atmosphere Studies (COLA)<br>
George Mason University<br>
<br>
<br>
</div>
</div>
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</div>
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