| 1 | ! |
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| 2 | ! $Header$ |
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| 3 | ! |
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| 4 | SUBROUTINE ozonecm(rjour, rlat, paprs, o3) |
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| 5 | IMPLICIT none |
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| 6 | C |
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| 7 | C The ozone climatology is based on an analytic formula which fits the |
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| 8 | C Krueger and Mintzner (1976) profile, as well as the variations with |
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| 9 | C altitude and latitude of the maximum ozone concentrations and the total |
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| 10 | C column ozone concentration of Keating and Young (1986). The analytic |
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| 11 | C formula have been established by J-F Royer (CRNM, Meteo France), who |
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| 12 | C also provided us the code. |
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| 13 | C |
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| 14 | C A. J. Krueger and R. A. Minzner, A Mid-Latitude Ozone Model for the |
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| 15 | C 1976 U.S. Standard Atmosphere, J. Geophys. Res., 81, 4477, (1976). |
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| 16 | C |
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| 17 | C Keating, G. M. and D. F. Young, 1985: Interim reference models for the |
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| 18 | C middle atmosphere, Handbook for MAP, vol. 16, 205-229. |
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| 19 | C |
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| 20 | |
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| 21 | #include "dimensions.h" |
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| 22 | #include "dimphy.h" |
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| 23 | REAL rlat(klon), paprs(klon,klev+1) |
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| 24 | REAL o3(klon,klev) |
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| 25 | REAL tozon, rjour, pi, pl |
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| 26 | INTEGER i, k |
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| 27 | C---------------------------------------------------------- |
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| 28 | REAL field(klon,klev+1) |
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| 29 | REAL ps |
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| 30 | PARAMETER (ps=101325.0) |
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| 31 | REAL an, unit, zo3q3 |
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| 32 | SAVE an, unit, zo3q3 |
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| 33 | REAL mu,gms, zslat, zsint, zcost, z, ppm, qpm, a |
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| 34 | REAL asec, bsec, aprim, zo3a3 |
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| 35 | C---------------------------------------------------------- |
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| 36 | c data an /365.25/ (meteo) |
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| 37 | DATA an /360.00/ |
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| 38 | DATA unit /2.1415e-05/ |
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| 39 | DATA zo3q3 /4.0e-08/ |
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| 40 | |
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| 41 | pi = 4.0 * ATAN(1.0) |
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| 42 | DO k = 1, klev |
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| 43 | DO i = 1, klon |
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| 44 | zslat = SIN(pi/180.*rlat(i)) |
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| 45 | zsint = SIN(2.*pi*(rjour+15.)/an) |
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| 46 | zcost = COS(2.*pi*(rjour+15.)/an) |
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| 47 | z = 0.0531+zsint*(-0.001595+0.009443*zslat) + |
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| 48 | . zcost*(-0.001344-0.00346*zslat) + |
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| 49 | . zslat**2*(.056222+zslat**2*(-.037609 |
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| 50 | . +.012248*zsint+.00521*zcost+.008890*zslat)) |
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| 51 | zo3a3 = zo3q3/ps/2. |
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| 52 | z = z-zo3q3*ps |
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| 53 | gms = z |
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| 54 | mu = ABS(sin(pi/180.*rlat(i))) |
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| 55 | ppm = 800.-(500.*zslat+150.*zcost)*zslat |
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| 56 | qpm = 1.74e-5-(7.5e-6*zslat+1.7e-6*zcost)*zslat |
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| 57 | bsec = 2650.+5000.*zslat**2 |
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| 58 | a = 4.0*(bsec)**(3./2.)*(ppm)**(3./2.)*(1.0+(bsec/ps)**(3./2.)) |
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| 59 | a = a/(bsec**(3./2.)+ppm**(3./2.))**2 |
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| 60 | aprim = (2.666666*qpm*ppm-a*gms)/(1.0-a) |
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| 61 | aprim = amax1(0.,aprim) |
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| 62 | asec = (gms-aprim)*(1.0+(bsec/ps)**(3./2.)) |
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| 63 | asec = AMAX1(0.0,asec) |
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| 64 | aprim = gms-asec/(1.+(bsec/ps)**(3./2.)) |
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| 65 | pl = paprs(i,k) |
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| 66 | tozon = aprim/(1.+3.*(ppm/pl)**2)+asec/(1.+(bsec/pl)**(3./2.)) |
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| 67 | . + zo3a3*pl*pl |
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| 68 | tozon = tozon / 9.81 ! en kg/m**2 |
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| 69 | tozon = tozon / unit ! en kg/m**2 > u dobson (10e-5 m) |
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| 70 | tozon = tozon / 1000. ! en cm |
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| 71 | field(i,k) = tozon |
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| 72 | ENDDO |
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| 73 | ENDDO |
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| 74 | c |
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| 75 | DO i = 1, klon |
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| 76 | field(i,klev+1) = 0.0 |
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| 77 | ENDDO |
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| 78 | DO k = 1, klev |
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| 79 | DO i = 1, klon |
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| 80 | o3(i,k) = field(i,k) - field(i,k+1) |
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| 81 | ENDDO |
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| 82 | ENDDO |
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| 83 | c |
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| 84 | RETURN |
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| 85 | END |
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