DIFFERENCE GCF THICKNESS BDVECTIOM {/160000} Z-APR-9C 9:00 
£100 TE110 T. 63390 
ubt Au Qon A. = 
ge aan m Zeh FA 
VERTICAL STABILITY CONTOUR MAP s-AnR-20° - 68:00 | 
  
  
  
  
  
AB! 
    
An 
orth 
sele 
disc 
fente 
  
  
\ 
\ 
\ 
\ 
  
  
  
  
— Mm 
d 
ae PRESSURE P1= 700 hPa 
LOWER PRESSIRE P2: €00 MPa 
£12 E130| 
  
PS | KE 
  
  
  
  
TTAR  contoum FR 4.8000 Tu 24.000 Contour INTERAAL Of — 1.0000 TOTAL STATION: 93 
  
: Wit] 
inter 
(v) is a 
Fig.4 Sisi 
(a)Isogram of functional difference of thickness advection. en 
(b) Isogram of vertical stability of convection. appl 
deri 
ord 
use. 
  
  
(6) Superimposition map Digi 
diff 
Some times meteorologists or weather analysts need some REFERENCE are, 
superimposition maps of graph and image, graph and graph. : The 
spem the um E E E e e m (1) PROFS, Annual Report for Fiscal Year 1984, U.S. harc 
superimposition ability. Dept. of Commerce, 1985 as P 
Q) K.A,Browning, Nowcasting, (Translation to chinese by 199 
Zhou Fengxian), Meteorological Press(China), 1986 ihe 
(3) Lu Zhonghan, Practical handbook of Meteorology, gen 
Shanghai dictionary Press, 1984 also 
(4) Wu Baojun, How to calculate the Meteorological ERI 
Magnitude, Ocean Press(China),1987. proc 
3. CONCLUSION 
These approaches were performed at the meteorological 
center of Shanghai with a micro VAX-3500 workstation. 
The program is convenient to use. 
The 
prec 
gen: 
acci 
moc 
pro 
exp 
  
  
limi 
mec 
map 
One 
info 
and 
nort 
map 
sma 
Aid 
Exte 
220