1 |
subroutine igrf_sub(xlat,xlong,year,height, |
c subroutine igrf_sub(xlat,xlong,year,height, |
2 |
& xl,icode,dip,dec) |
c & xl,icode,dip,dec) |
3 |
c---------------------------------------------------------------- |
c---------------------------------------------------------------- |
4 |
c INPUT: |
c INPUT: |
5 |
c xlat geodatic latitude in degrees |
c xlat geodatic latitude in degrees |
14 |
c dip geomagnetic inclination in degrees |
c dip geomagnetic inclination in degrees |
15 |
c dec geomagnetic declination in degress |
c dec geomagnetic declination in degress |
16 |
c---------------------------------------------------------------- |
c---------------------------------------------------------------- |
17 |
|
c |
18 |
REAL LATI,LONGI |
c REAL LATI,LONGI |
19 |
COMMON/GENER/ UMR,ERA,AQUAD,BQUAD |
c COMMON/GENER/ UMR,ERA,AQUAD,BQUAD |
20 |
SAVE /GENER/ |
c SAVE /GENER/ |
21 |
C |
C |
22 |
CALL INITIZE |
c CALL INITIZE |
23 |
ibbb=0 |
c ibbb=0 |
24 |
ALOG2=ALOG(2.) |
c ALOG2=ALOG(2.) |
25 |
ISTART=1 |
c ISTART=1 |
26 |
lati=xlat |
c lati=xlat |
27 |
longi=xlong |
c longi=xlong |
28 |
c |
c |
29 |
C----------------CALCULATE PROFILES----------------------------------- |
C----------------CALCULATE PROFILES----------------------------------- |
30 |
c |
c |
31 |
CALL FELDCOF(YEAR,DIMO) |
c CALL FELDCOF(YEAR,DIMO) |
32 |
CALL FELDG(LATI,LONGI,HEIGHT,BNORTH,BEAST,BDOWN,BABS) |
c CALL FELDG(LATI,LONGI,HEIGHT,BNORTH,BEAST,BDOWN,BABS) |
33 |
CALL SHELLG(LATI,LONGI,HEIGHT,DIMO,XL,ICODE,BAB1) |
c CALL SHELLG(LATI,LONGI,HEIGHT,DIMO,XL,ICODE,BAB1) |
34 |
DIP=ASIN(BDOWN/BABS)/UMR |
c DIP=ASIN(BDOWN/BABS)/UMR |
35 |
DEC=ASIN(BEAST/SQRT(BEAST*BEAST+BNORTH*BNORTH))/UMR |
c DEC=ASIN(BEAST/SQRT(BEAST*BEAST+BNORTH*BNORTH))/UMR |
36 |
RETURN |
c RETURN |
37 |
END |
c END |
38 |
c |
c |
39 |
c |
c |
40 |
C SHELLIG.FOR, Version 2.0, January 1992 |
C SHELLIG.FOR, Version 2.0, January 1992 |
196 |
SAVE /FIDB0/ |
SAVE /FIDB0/ |
197 |
COMMON/GENER/ UMR,ERA,AQUAD,BQUAD |
COMMON/GENER/ UMR,ERA,AQUAD,BQUAD |
198 |
SAVE /GENER/ |
SAVE /GENER/ |
199 |
|
REAL FLS |
200 |
C |
C |
201 |
C-- RMIN, RMAX ARE BOUNDARIES FOR IDENTIFICATION OF ICODE=2 AND 3 |
C-- RMIN, RMAX ARE BOUNDARIES FOR IDENTIFICATION OF ICODE=2 AND 3 |
202 |
C-- STEP IS STEP SIZE FOR FIELD LINE TRACING |
C-- STEP IS STEP SIZE FOR FIELD LINE TRACING |
204 |
C |
C |
205 |
DATA RMIN,RMAX /0.05,1.01/ |
DATA RMIN,RMAX /0.05,1.01/ |
206 |
DATA STEP,STEQ /0.20,0.03/ |
DATA STEP,STEQ /0.20,0.03/ |
207 |
BEQU=1.E10 |
BEQU=1.E10 |
208 |
|
FLS = FL |
209 |
C*****ENTRY POINT SHELLG TO BE USED WITH GEODETIC CO-ORDINATES |
C*****ENTRY POINT SHELLG TO BE USED WITH GEODETIC CO-ORDINATES |
210 |
RLAT=GLAT*UMR |
RLAT=GLAT*UMR |
211 |
CT=SIN(RLAT) |
CT=SIN(RLAT) |
306 |
HLI=0.5*(((C3*T+C2)*T+C1)*T+C0) |
HLI=0.5*(((C3*T+C2)*T+C1)*T+C0) |
307 |
ZQ=Z*Z |
ZQ=Z*Z |
308 |
R=HLI+SQRT(HLI*HLI+ZQ) |
R=HLI+SQRT(HLI*HLI+ZQ) |
309 |
|
IF(R.NE.R)THEN |
310 |
|
FL = FLS |
311 |
|
RETURN |
312 |
|
ENDIF |
313 |
IF(R.LE.RMIN)GOTO30 |
IF(R.LE.RMIN)GOTO30 |
314 |
RQ=R*R |
RQ=R*R |
315 |
FF=SQRT(1.+3.*ZQ/RQ) |
FF=SQRT(1.+3.*ZQ/RQ) |
683 |
F = GHA(J) * 1.D-5 |
F = GHA(J) * 1.D-5 |
684 |
F0 = F0 + F * F |
F0 = F0 + F * F |
685 |
1234 CONTINUE |
1234 CONTINUE |
686 |
DIMO = DSQRT(F0) |
DIMO = REAL(DSQRT(F0)) |
687 |
|
|
688 |
GH1(1) = 0.0 |
GH1(1) = 0.0 |
689 |
I=2 |
I=2 |
699 |
IF(IS.EQ.0) F0 = F0 * (2.D0 * X - 1.D0) / X |
IF(IS.EQ.0) F0 = F0 * (2.D0 * X - 1.D0) / X |
700 |
F = F0 * 0.5D0 |
F = F0 * 0.5D0 |
701 |
IF(IS.EQ.0) F = F * SQRT2 |
IF(IS.EQ.0) F = F * SQRT2 |
702 |
GH1(I) = GHA(I-1) * F0 |
GH1(I) = GHA(I-1) * REAL(F0) |
703 |
I = I+1 |
I = I+1 |
704 |
DO 9 M=1,N |
DO 9 M=1,N |
705 |
F = F * (X + M) / (X - M + 1.D0) |
F = F * (X + M) / (X - M + 1.D0) |
706 |
IF(IS.EQ.0) F = F * DSQRT((X - M + 1.D0) / (X + M)) |
IF(IS.EQ.0) F = F * DSQRT((X - M + 1.D0) / (X + M)) |
707 |
GH1(I) = GHA(I-1) * F |
GH1(I) = GHA(I-1) * REAL(F) |
708 |
GH1(I+1) = GHA(I) * F |
GH1(I+1) = GHA(I) * REAL(F) |
709 |
I=I+2 |
I=I+2 |
710 |
9 CONTINUE |
9 CONTINUE |
711 |
RETURN |
RETURN |
953 |
C ASTRONOMICAL UNION . |
C ASTRONOMICAL UNION . |
954 |
C----------------------------------------------------------------- |
C----------------------------------------------------------------- |
955 |
INTEGER TL1,TL2,TL3 |
INTEGER TL1,TL2,TL3 |
956 |
CHARACTER (len=258) TP1,TP2,TP3 |
CHARACTER (len=*) :: TP1,TP2,TP3 |
957 |
INTEGER L1,L2,L3 |
INTEGER L1,L2,L3 |
958 |
CHARACTER *258 P1,P2,P3 |
CHARACTER *258 P1,P2,P3 |
959 |
COMMON/PPATH/ L1,L2,L3,P1, P2, P3 |
COMMON/PPATH/ L1,L2,L3,P1, P2, P3 |