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看了很多论坛的帖子和大气物理书,附上假相当位温gs'reinit'
'sdfopen g:\air.2012.nc'
'sdfopen g:\rhum.2012.nc'
'set display color white'
'c'
'set xlopts 1 8 0.25'
'set ylopts 1 8 0.25'
'set clopts 1 8 0.25'
'set lon 105 130'
'set lat 25 50'
'set xlevs 110 120 130'
'set ylevs 30 40 50'
'set t 257'
'set lev 850'
'define t=air.1'
'define rh=rhum.2'
'define prs=lev'
'define es=(6.112*exp(17.67*(t-273.15)/(t-29.65)))'
'define q=rh*(0.62197*es/(prs-es))/100.'
'define e=prs*q/(0.62197+q)+1e-10'
'define tlcl=55.0+2840.0/(3.5*log(t)-log(e)-4.805)'
'define theta=t*pow((1000/prs),(0.2854*(1.0-0.28*q)))'
'define eqt=theta*exp(((3376./tlcl)-2.54)*q*(1.0+0.81*q))'
'set ccolor 1'
'set cthick 16'
'set grid off'
'set grads off'
'd eqt'
'enable print g:\tse_0508.gmf'
'print'
'disable print'
'reinit'
'sdfopen g:\air.2012.nc'
'sdfopen g:\rhum.2012.nc'
'set display color white'
'c'
'set xlopts 1 8 0.25'
'set ylopts 1 8 0.25'
'set clopts 1 8 0.25'
'set lon 105 130'
'set lat 25 50'
'set xlevs 110 120 130'
'set ylevs 30 40 50'
'set t 257'
'set lev 850'
'define t=air.1'
'define rh=rhum.2'
'define prs=lev'
'define es=(6.112*exp(17.67*(t-273.15)/(t-29.65)))'
'define q=rh*(0.62197*es/(prs-es))/100.'
'define e=prs*q/(0.62197+q)+1e-10'
'define tlcl=55.0+2840.0/(3.5*log(t)-log(e)-4.805)'
'define theta=t*pow((1000/prs),(0.2854*(1.0-0.28*q)))'
'define eqt=theta*exp(((3376./tlcl)-2.54)*q*(1.0+0.81*q))'
'set ccolor 1'
'set cthick 16'
'set grid off'
'set grads off'
'd eqt'
'enable print g:\tse_0508.gmf'
'print'
'disable print'
http://bbs.06climate.com/forum.php?mod=attachment&aid=MjEwOTl8MTgxZDg1NGQ4ZTZkZWI3ZmJiMmVhNmFkYmQzN2QxMjZ8MTczMjcyMDQ0Ng%3D%3D&request=yes&_f=.gs
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