program o3read
c
c			Update: 7 September 1998
c
c	The KNMI ozone climatology consists of monthly mean ozone values
c	(volume mixing ratio, ppmv), zonally averaged (17 bands, 10  
c	degrees wide) at 19 P-levels (1000-0.3 hPa). It is compiled
c	from ozonesonde (30 stations, 1000-10 hPa) and SBUV-SBUV/2 
c	(30-0.3 hPa) observations over the target period 1980-1991.
c	A corresponding ozone climatology of the inter-annual standard 
c	deviation has also been compiled.
c
c	The climatology is described in 'An ozone climatology compiled 
c	from ozonesonde and satellite observations', by Fortuin and
c	Kelder ( Journal of Geophysical Research, 103-D24, 31709-31734 ).
c       The SBUV-SBUV/2 climatology was obtained from Randel and Wu and 
c       is described in 'Climatology of stratospheric ozone based on 
c       SBUV and SBUV/2 data' (Randel and Wu, 1995, NCAR Report).
c
c	NOTE: Use of this climatology for any study is on the pre-
c	condition that the authors are properly cited and that they 
c	are notified of any publication resulting from its use.
c
c	The authors welcome any comments or questions on the 
c	climatology, which can be sent to:
c	E-mail: 	fortuin@knmi.nl, kelder@knmi.nl
c	address:	KNMI
c        		PO Box 201
c        		3730 AE De Bilt
c	tel: 		+31-30-2206452, +31-30-2206472
c	fax: 		+31-30-2210407
c
c

      dimension o3mean(12,19,17),o3sdev(12,19,17),zonal(17),plev(19)
      data zonal/-80.,-70.,-60.,-50.,-40.,-30.,-20.,-10.,0.,
     + 10.,20.,30.,40.,50.,60.,70.,80./
      data plev/1000.,700.,500.,300.,200.,150.,100,70.,50.,30.,
     + 20.,10.,7.,5.,3.,2.,1.,0.5,0.3/ 
      open(2,file='o3-mean.dat')
      open(3,file='o3-sdev.dat')
      do month = 1,12
       read(2,*)
       read(3,*)
       do layer = 1,19
        read(2,'(17f9.4)') (o3mean(month,layer,izone),izone=1,17)
        read(3,'(17f9.4)') (o3sdev(month,layer,izone),izone=1,17)
       enddo
      enddo
      close(2)
      close(3)
      end