<DIV id=RTEContent> <DIV>Hello everyone,</DIV> <DIV> I want to find relations of precipitation and 500mb pressure. Because they are from files with different serial and diffenent time stride, I didn't know how to adjust then. Any help will be greatly appreciated!</DIV> <DIV> </DIV> <DIV> precipitation is yearly,from1950 to 2000, however, pressure is monthly 1957.9.1 ~ 2002.8.1.</DIV> <DIV> I plan to calculate yearly pressure first, my script is:</DIV> <DIV> </DIV> <DIV>'open /chdd/work4/grads_used/pressure.ctl'<BR>'set lat 0 90'<BR>'set lev 500'<BR>t=5<BR>while(t<522)<BR> 'set t ' t<BR> 'define zyear=ave(Zprs,t=' t ',t=' t '+12,-b)'<BR> t=t+12<BR>endwhile</DIV> <DIV> </DIV> <DIV>yet, It is wrong <IMG src="http://us.i1.yimg.com/us.yimg.com/i/mesg/tsmileys2/15.gif"> Whenever I set time dimension, zyear always showing the same
value.
what's more, zyear have value even at times i didn't define. such as t=1 ( t=1 refer to 1957.9.1)</DIV> <DIV> </DIV> <DIV> Can you help me get averaged pressure at times consistent with precipitation, and use TCORR to find their space pattern? </DIV> <DIV> </DIV> <DIV>the two control files are in attachment. </DIV> <DIV> </DIV> <DIV>Thank you for your caring,May you all the best!!!</DIV> <DIV><BR></DIV></DIV><p>__________________________________________________<br>¸Ï¿ì×¢²áÑÅ»¢³¬´óÈÝÁ¿Ãâ·ÑÓÊÏä?<br>http://cn.mail.yahoo.com