<div>Dear Grads users,</div><div><br></div><div>I have problem,</div><div>below is my descriptor file</div><div><br></div><div><div>DSET /misc/home/wendi/data1/radar/kototabang/XDR/data/20040410/%d2%h2.dat</div><div>TITLE RADAR</div>
<div>OPTIONS TEMPLATE LITTLE_ENDIAN</div><div>UNDEF -1000</div><div>XDEF 321 LINEAR 99.688120996 0.004492369</div><div>YDEF 321 LINEAR -1.083708891 0.004522556</div><div>ZDEF 39 LINEAR 1.0 0.5</div>
<div>TDEF 15 LINEAR 21:00Z10apr2004 4mn </div><div>VARS 2</div><div>ref 39 99 Reflectivity(dBZ)</div><div>vel 39 99 Doppler Velocity(m/s)</div><div>ENDVARS</div></div><div><br></div><div>As you see time is 15,</div>
<div><br></div><div>I want to convert the ref (dbz) to Rain (mm/hr)</div><div>by using Z-R correlation formula, as below :</div><div><br></div><div>'pow((pow(10, R/10))/200,5/8)',</div><div><br></div><div>Then I want to accumulate the rainrate for 1 hour,</div>
<div>I use this formula :</div><div><br></div><div>'sum(ref, t=1, t=15)'</div><div><font color="#222222" face="arial, sans-serif"><span style="white-space:nowrap"><br></span></font></div><div>But I got strange result.</div>
<div><br></div><div>Here my complete gs file,</div><div><br></div><div><div>'reinit'</div><div>'set grads off'</div><div>'set mproj latlon'</div><div>'set mpdset hires'</div><div>'set gxout shaded'</div>
<div>'open RHI.ctl'</div><div>'set lon 100 100.8'</div><div>'set lat -0.45'</div><div>'set Z 1 19'</div><div>'set parea 1 7.5 2.8 8.3'</div><div>'set clevs 0 50 100 150 200 250 300 350 400 450 500 550 600'</div>
<div>'set ccols 9 14 4 11 5 13 3 10 7 12 8 2 6'</div><div>'R=pow((pow(10, ref/10))/200,5/8)'</div><div>'d sum(R, t=1, t=15)'</div><div>'run /misc/home/wendi/grads-2.0.1/cbarn 0.7 0.7 7.9 5.2'</div>
<div>'draw string 7.7 7.8 [dBz]'</div><div><br></div><div>Would you help me, about this,</div></div><div>please let me know, which part I got wrong</div><div><br></div><div>Thank you very much!</div><div><br></div>
<div>Best regards,</div><div>wendi</div><br clear="all"><div><br></div>-- <br><span style="font-family:arial,helvetica,sans-serif;font-size:16px;background-color:rgb(255,255,255)">-------------</span><br style="font-family:arial,helvetica,sans-serif;font-size:16px;background-color:rgb(255,255,255)">
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<div><font color="#333333" face="arial, sans-serif" size="3">email : <a href="mailto:wendi@rslab.riko.shimane-u.ac.jp" target="_blank">wendi@rslab.riko.shimane-u.ac.jp</a></font></div><br>