<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div dir="ltr" id="yui_3_16_0_1_1418467762288_4071">Dear NCL users,</div><div id="yui_3_16_0_1_1418467762288_4159" dir="ltr"><br></div><div id="yui_3_16_0_1_1418467762288_4160" dir="ltr">A variable "plev2" is defined as in the below:<br></div><div id="yui_3_16_0_1_1418467762288_4161"><br></div><div id="yui_3_16_0_1_1418467762288_4162"> plev2=3.0<br style="" class=""> plev2@axis=(/"Z"/)<br style="" class=""> plev2@positive=(/"Down"/)<br style="" class=""> plev2@units=(/"Pa"/)<br style="" class=""> plev2@standard_name=(/"air_pressure"/)<br style="" class=""> plev2@long_name=(/"pressure"/)<br style="" class=""> plev2!0 = "ncl_scalar"<br style="" class=""></div><div id="yui_3_16_0_1_1418467762288_4168"><br></div><div id="yui_3_16_0_1_1418467762288_4167" dir="ltr">Then another variable "plev" would be defined, with the same attribute as "plev2", but its value is different.<br></div><div id="yui_3_16_0_1_1418467762288_4166" dir="ltr"><br></div><div id="yui_3_16_0_1_1418467762288_4115"> plev=50000.0<br style="" class=""> filevardef(write_file,"plev",typeof(plev2),"ncl_scalar")<br style="" class=""> filevarattdef(write_file,"plev", plev2)<br style="" class=""> write_file->zg500=ZG500(limTime(0):limTime(1),0,limS_N(0):limS_N(1), \<br style="" class=""> limW_E(0):limW_E(1))</div><div id="yui_3_16_0_1_1418467762288_4780"><br></div><div id="yui_3_16_0_1_1418467762288_4781" dir="ltr">However, the variable "plev" did not get the value as 50000.0 here.</div><div id="yui_3_16_0_1_1418467762288_4783" dir="ltr">I would appreciate your help very much!</div><div id="yui_3_16_0_1_1418467762288_4784" dir="ltr"><br></div><div id="yui_3_16_0_1_1418467762288_4785" dir="ltr">With my best regards,</div><div id="yui_3_16_0_1_1418467762288_4786" dir="ltr"><br></div><div id="yui_3_16_0_1_1418467762288_5781" dir="ltr">Mark<br></div><div style="" class="" id="yui_3_16_0_1_1418467762288_4071"><br style="" class=""></div></div></body></html>