/[MITgcm]/MITgcm_contrib/jscott/igsm/src/t2m.F
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Revision 1.1 - (hide annotations) (download)
Fri Aug 11 19:35:33 2006 UTC (18 years, 11 months ago) by jscott
Branch: MAIN
CVS Tags: HEAD
atm2d package

1 jscott 1.1 SUBROUTINE TZM(T,TH,Z,Z0,ZGS,PSMB,TG,TS,RIGS,WS,SHEAT,TGM,LR,EPS)
2     PARAMETER(R=287.D0,G=9.8D0,CP=1007.D0,CAR=0.35,
3     :RCP=R/CP,RG=R/G,GCP=G/CP)
4     LOGICAL FIRST
5     DIMENSION AROUGH(20),BROUGH(20),CROUGH(20),DROUGH(20),EROUGH(20) 5823.
6     DATA AROUGH/16.59,13.99,10.4,7.35,5.241,3.926,3.126,2.632,2.319, 5824.
7     *2.116,1.982,1.893,1.832,1.788,1.757,1.733,1.714,1.699,1.687,1.677/5825.
8     DATA BROUGH/3.245,1.733,0.8481,0.3899,0.1832,0.9026E-1,0.4622E-1, 5826.
9     * .241E-1,.1254E-1,.6414E-2,.3199E-2,.1549E-2,.7275E-3,.3319E-3, 5827.
10     * .1474E-3,.6392E-4,.2713E-4,.1130E-4,.4630E-5,.1868E-5/ 5828.
11     DATA CROUGH/5.111,3.088,1.682,.9239,.5626,.3994,.3282,.3017,.299 5829.
12     *,.3114,.3324,.3587,.3881,.4186,.4492,.4792,.5082,.5361,.5627, 5830.
13     * .5882/ 5831.
14     DATA DROUGH/1.24,1.02,0.806,0.682,0.661,0.771,0.797,0.895,0.994, 5832.
15     * 1.09,1.18,1.27,1.35,1.43,1.50,1.58,1.65,1.71,1.78,1.84/ 5833.
16     DATA EROUGH/0.128,0.130,0.141,0.174,0.238,0.330,0.438,0.550,0.660,5834.
17     * 0.766,0.866,0.962,1.05,1.14,1.22,1.30,1.37,1.45,1.52,1.58/ 5835.
18     DATA FIRST/.TRUE./
19     PS=PSMB*1.D2
20     PSR=PS/R
21     ROS=PSR/TG
22    
23     c DTH=TS-TG
24     c CDN=(CAR/LOG(ZGS/Z0))**2
25     c IF(RIGS.LE.0) THEN
26     C surface layer has unstable stratification
27     c DM=SQRT((1.-AROUGH(LR)*RIGS)*(1.-BROUGH(LR)*RIGS)/
28     c * (1.-CROUGH(LR)*RIGS))
29     c DH=1.35*SQRT((1.-DROUGH(LR)*RIGS)/(1.-EROUGH(LR)*RIGS))
30     c ELSE
31     C surface layer has stable stratification
32     c DM=1./(1.+(11.238+89.9*RIGS)*RIGS)
33     c DH=1.35/(1.+1.93*RIGS)
34     c END IF
35     c FM=DM
36     c FH=DM*DH
37     c HF=-CP*ROS*WS*CDN*FH*DTH
38     c TGM1=ROS*CDN*FM*WS**2
39    
40     c print *,'FROM TZM'
41     c print *,'CDN=',CDN
42     c print *,'SHEAT=',SHEAT,' HF=',HF
43     c print *,'TGM=',TGM,' TGM1=',TGM1
44     c print *,Z,Z0,PS,TG,SHEAT,TGM,LR,EPS
45     CB CALCULATION OF T (TEMPERATURE ON HEIGHT Z)
46     ZZ=Z/Z0
47     SZZ=SQRT(ZZ)
48     ZZ1=1.D0/ZZ
49     SCD=CAR/LOG(ZZ)
50     CD=SCD*SCD
51     CDSZZ=CD*SZZ
52     HF1=SHEAT/CP
53     SRCDTX=SCD*SQRT(ROS*TGM)
54     THCOF=HF1/SRCDTX
55     RICOF=G*Z*HF1*SRCDTX/(TG*TGM**2)
56     RICOF2=RICOF**2
57     DX0=10.D0
58     IF(SHEAT.LT.0.D0) THEN
59     DX0=10.D0
60     ELSE
61     DX0=-10.D0
62     END IF
63     DX=DX0
64     X1=DX
65     CALL DR(X1,RICOF2,DEL1,FM,FH,LR)
66     in=0
67     10 CONTINUE
68     in=in+1
69     IF(DEL1.LT.0.D0) THEN
70     DX=DX+DX0
71     X1=X1+DX
72     CALL DR(X1,RICOF2,DEL1,FM,FH,LR)
73     c print *,'in=',in,'DEL1=',DEL1
74     GO TO 10
75     END IF
76     X0=X1-DX
77     in=0
78     20 CONTINUE
79     in=in+1
80     DLX=0.5D0*(X1-X0)
81     IF(ABS(DLX).GT.EPS) THEN
82     X=X0+DLX
83     CALL DR(X,RICOF2,DEL,FM,FH,LR)
84     IF(DEL.LT.0.D0) THEN
85     X0=X
86     ELSE
87     X1=X
88     END IF
89     GO TO 20
90     END IF
91     TH=TG-THCOF*SQRT(FM)/FH
92     PZ=PS-G*ROS*Z
93     T=TH/(1.D0+GCP*Z/TG)
94     CE
95     RETURN
96     END
97     SUBROUTINE DR(RIGS,RICOF2,DEL,FM,FH,LR)
98     DIMENSION AROUGH(20),BROUGH(20),CROUGH(20),DROUGH(20),EROUGH(20) 5823.
99     DATA AROUGH/16.59,13.99,10.4,7.35,5.241,3.926,3.126,2.632,2.319, 5824.
100     *2.116,1.982,1.893,1.832,1.788,1.757,1.733,1.714,1.699,1.687,1.677/5825.
101     DATA BROUGH/3.245,1.733,0.8481,0.3899,0.1832,0.9026E-1,0.4622E-1, 5826.
102     * .241E-1,.1254E-1,.6414E-2,.3199E-2,.1549E-2,.7275E-3,.3319E-3, 5827.
103     * .1474E-3,.6392E-4,.2713E-4,.1130E-4,.4630E-5,.1868E-5/ 5828.
104     DATA CROUGH/5.111,3.088,1.682,.9239,.5626,.3994,.3282,.3017,.299 5829.
105     *,.3114,.3324,.3587,.3881,.4186,.4492,.4792,.5082,.5361,.5627, 5830.
106     * .5882/ 5831.
107     DATA DROUGH/1.24,1.02,0.806,0.682,0.661,0.771,0.797,0.895,0.994, 5832.
108     * 1.09,1.18,1.27,1.35,1.43,1.50,1.58,1.65,1.71,1.78,1.84/ 5833.
109     DATA EROUGH/0.128,0.130,0.141,0.174,0.238,0.330,0.438,0.550,0.660,5834.
110     * 0.766,0.866,0.962,1.05,1.14,1.22,1.30,1.37,1.45,1.52,1.58/ 5835.
111     RI=RIGS
112     c print *,'here'
113     c print *,RI,LR
114     c do ii=1,100
115     c print *,' '
116     c enddo
117     IF(RIGS.LE.0) THEN
118     C surface layer has unstable stratification
119     DM=SQRT((1.-AROUGH(LR)*RIGS)*(1.-BROUGH(LR)*RIGS)/
120     * (1.-CROUGH(LR)*RIGS))
121     DH=1.35*SQRT((1.-DROUGH(LR)*RIGS)/(1.-EROUGH(LR)*RIGS))
122     ELSE
123     C surface layer has stable stratification
124     DM=1./(1.+(11.238+89.9*RIGS)*RIGS)
125     DH=1.35/(1.+1.93*RIGS)
126     END IF
127     FM=DM
128     FH=DM*DH
129     c print *,FM,FH
130     DEL=RI*RI-RICOF2*FM*FM*FM/(FH*FH)
131     RETURN
132     END

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