<html><head></head><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:24px"><div id="yui_3_16_0_ym19_1_1470961300861_27541"><span></span></div><div class="qtdSeparateBR" id="yui_3_16_0_ym19_1_1470961300861_27556"><span style="font-size: 16px;">Dear khaled,</span><br></div><div class="thread-quoted-text unselectable custom-quoted-text" title="Afficher le message d’origine" role="presentation" id="yui_3_16_0_ym19_1_1470961300861_27704"> <span class="icon icon-chevron-right qtd-expansion-icon" role="presentation"></span> <span class="qtd-expansion-text" tabindex="0" role="button" aria-label="Afficher le message d’origine">Afficher le message d’origine</span> </div><div class="yahoo_quoted" id="yui_3_16_0_ym19_1_1470961300861_27561" style="display: block;"><div style="font-family: verdana, helvetica, sans-serif; font-size: 24px;" id="yui_3_16_0_ym19_1_1470961300861_27560"><div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_ym19_1_1470961300861_27559"><div class="y_msg_container" id="yui_3_16_0_ym19_1_1470961300861_27574"><div id="yiv9450630871"><div class="yiv9450630871yqt6650334588" id="yiv9450630871yqtfd68593"><div id="yui_3_16_0_ym19_1_1470961300861_27573"><div style="color:#000;background-color:#fff;font-family:verdana, helvetica, sans-serif;font-size:24px;" id="yui_3_16_0_ym19_1_1470961300861_27572"><div class="yiv9450630871qtdSeparateBR" id="yui_3_16_0_ym19_1_1470961300861_27571"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14555" style="font-size: 16px;">you need to reduce the time step because in your namelist, we can see that you have set the the </span><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14556" style="white-space: pre-wrap;">interval_seconds = 10800 which is equal to hours meaning also that </span><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14557" style="font-size: 16px;">you might have using 3 hourly data if your running the model in real case acording to the wrf user-guide.</span><br></div><div class="yiv9450630871yahoo_quoted" id="yiv9450630871yui_3_16_0_ym19_1_1470961300861_8714" style="display:block;"><div id="yiv9450630871yui_3_16_0_ym19_1_1470961300861_8713" style="font-family:verdana, helvetica, sans-serif;font-size:24px;"><div id="yiv9450630871yui_3_16_0_ym19_1_1470961300861_8712" style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div class="yiv9450630871y_msg_container" id="yiv9450630871yui_3_16_0_ym19_1_1470961300861_8717"><div id="yiv9450630871"><div id="yiv9450630871yui_3_16_0_ym19_1_1470961300861_8716"><div id="yiv9450630871yui_3_16_0_ym19_1_1470961300861_8715" style="color:#000;background-color:#fff;font-family:verdana, helvetica, sans-serif;font-size:24px;"><div id="yiv9450630871"><div id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14505"><div id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14504" style="color:rgb(0, 0, 0);font-family:verdana, helvetica, sans-serif;background-color:rgb(255, 255, 255);"><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314" style="font-size:24px;"><span style="font-size:16px;"><br clear="none"></span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314" style="font-size:24px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15004" style="font-size:16px;">In the same user-guide, it was suggested that if DX is the horizontal resolution that you are using, because you have set </span><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15005" style="font-size:16px;">you have set </span><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15006" style="white-space:pre-wrap;">interval_seconds = 10800 (or because your are using 3 hourly data</span><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15009" style="font-size:16px;">, your time step should be equal or less than 3xDX. if one is using 6 hourly data then the time step should be 6xDX.</span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314" style="font-size:24px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14742" style="font-size:16px;">Here your horizontal resolution is DX=0.816 time step should be equal or less than 3 times DX (3xDX=<3 x 0.816) </span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15574" style="font-size:16px;">3x0.816=2.448 and correspond to the fraction 306/125</span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15531" style="font-size:16px;">so, go to the namelist and choose any positive integer number less than 2.448 and set as the 2 examples bellow</span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314" style="font-size:24px;"><span style="font-size:16px;"><br clear="none"></span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314" style="font-size:24px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15854" style="font-size:16px;">&domains </span><span style="font-size:16px;"><br clear="none"></span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314" style="font-size:24px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15204" style="font-size:16px;">time_step = 2, </span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314" style="font-size:24px;"><span style="font-size:16px;">or </span><br clear="none"></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314" style="font-size:24px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15870" style="font-size:16px;">&domains </span><span style="font-size:16px;"><br clear="none"></span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314" style="font-size:24px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15663" style="font-size:16px;">time_step =1</span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314" style="font-size:24px;"><span style="font-size:16px;"><br clear="none"></span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7314"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15699" style="font-size:16px;">If you wish to use a decimal number as time step, there are two options for that (</span><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15729" style="font-size:16px;">time_step_fract_num and </span><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15743" style="font-size:16px;">time_step_fract_den), these options help to set the decimal number in form of fraction. In this case the option "time step" should be set to 0 as you can see in the example bellow:</span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14558" style="font-size:24px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7349" style="font-family:HelveticaNeue,;font-size:16px;">&domains </span><br clear="none" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7350" style="font-family:HelveticaNeue,;font-size:16px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7351" style="font-family:HelveticaNeue,;font-size:16px;">time_step = 0,</span><br clear="none" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7352" style="font-family:HelveticaNeue,;font-size:16px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7353" style="font-family:HelveticaNeue,;font-size:16px;">time_step_fract_num = 306, </span><br clear="none" id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7354" style="font-family:HelveticaNeue,;font-size:16px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470855900407_7355" style="font-family:HelveticaNeue,;font-size:16px;">time_step_fract_den = 125,</span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14558" style="font-size:24px;"><span style="font-size:16px;"><br clear="none"></span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14558" style="font-size:24px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_15974" style="font-size:16px;">Note that the first line of three seting always use the integer number. here we have switched off the first line to 0 (zero) and then used the fraction number from 2.448 useng the two option we have mentioned before.</span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14558" style="font-size:24px;"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_16050" style="font-size:16px;">When you use the integer less than this fraction or a fraction number equal or less than 306/126 it should also </span><span style="font-size:16px;" id="yui_3_16_0_ym19_1_1470961300861_27683">work.</span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14558" style="font-size:24px;"><br clear="none"></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14558"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_16136" style="font-size:16px;">The second way to handle with your problem is to try using the command "ulimit -s unlimited" just after you have lunched wrf.exe</span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14558"><span style="font-size:16px;"><br clear="none"></span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14558"><span id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_16260" style="font-size:16px;">If none of the suggestions doesn't work, may you try setting in the namelist DX=DY=0.816 </span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14558"><span style="font-size:16px;"><br clear="none"></span></div><div dir="ltr" id="yiv9450630871yui_3_16_0_ym19_1_1470853711136_14558"><span id="yiv9450630871yui_3_16_0_ym19_1_1470961300861_8773" style="font-size:16px;">BATEBANA</span><br clear="none"></div></div></div></div></div></div></div><br clear="none"><br clear="none"></div> </div> </div> </div></div></div></div></div><br><br></div> </div> </div> </div></div></body></html>