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WERA HF Radar Software - Header Information Gridded Spectra (.SPEC)

The header is a 512 Byte ASCII block, containing information on the data set.

Virtual block number 1 (00000001), 512 (0200) bytes

 31202020 53454C50 4D415320 38343032 2048 SAMPLES   1 000000
 55203531 3A343020 30302D54 434F2D38 8-OCT-00 04:15 U 000010
 20736572 726F542D 6F626143 20204354 TC  Cabo-Torres  000020
 5A4E4555 51455246 20204345 50534D46 FMSPEC  FREQUENZ 000030
 20524145 59205A48 4D203536 2E373220  27.65 MHZ YEAR  000040
 203A4547 4E415220 20202020 30303032 2000     RANGE:  000050
 4E455552 542C4D4B 20393230 322E3120  1.2029 KM,TRUEN 000060
 41522C44 41524720 3539203A 4854524F ORTH: 95 GRAD,RA 000070
 52524E2C 53303030 3036322E 303A4554 TE:0.260000S,NRR 000080
 20202020 20202034 36203A53 45474E41 ANGES: 64        000090
 2D32342D 3530303A 45474E45 414C2020   LAENGE:005-42- 0000A0
 332D3334 203A4554 49455242 57203030 00 WBREITE: 43-3 0000B0
 33312020 3D4C544E 20204E20 38312D34 4-18 N  NTL=  13 0000C0
 36203D58 4E203231 35203D4C 54464E20  NFTL= 512 NX= 6 0000D0
 3A544553 46464F20 3036203D 594E2030 0 NY= 60 OFFSET: 0000E0
 365F6469 72675F6E 6F6A6947 20352E30 0.5 Gijon_grid_6 0000F0
 20202020 20202020 6373612E 30365F30 0_60.asc         000100
 20202020 20202020 20202020 20202020                  000110
 6D697265 70784520 45534F52 6F727545 EuroROSE Experim 000120
 20295545 4E28204E 4F4A4947 20746E65 ent GIJON (NEU)  000130
 20202020 20202020 20202020 20202020                  000140
 20202020 20202020 20202020 20202020                  000150
 20202020 20202020 20202020 20202020                  000160
 20202020 20202020 20202020 20202020                  000170
 20202020 20202020 20202020 20202020                  000180
 20202020 20202020 20202020 20202020                  000190
 20202020 20202020 20202020 20202020                  0001A0
 20202020 20202020 20202020 20202020                  0001B0
 20202020 20202020 20202020 20202020                  0001C0
 20333536 3639302E 34342020 3D54414C LAT=  44.096653  0001D0
 20353636 3636382E 352D2020 3D4E4F4C LON=  -5.866665  0001E0
 20303030 3030302E 31202020 3D544744 DGT=   1.000000  0001F0

This is a FORTRAN program to read and decode the header:

        OPTIONS /EXTEND_SOURCE
C
C       EXAMPLE_READ_HEADER.FOR                    24-SEP-1999     GURGEL
C
        PROGRAM EXAMPLE_READ_HEADER

	INTEGER		IUN_DAT
	CHARACTER*100	WERA_DAT
	INTEGER		IOS

C	Header
C
	BYTE		HEAD(512)

	INTEGER		NSER		! Nunber of samples
	INTEGER		DAY		! DATE AND TIME
	CHARACTER*3	MONTH		!       "
	INTEGER		YEAR		!       "
	INTEGER		HH		!       "
	INTEGER		MM		!       "
	CHARACTER*3	TIME_BASE	! UTC, MEZ, LOC
	CHARACTER*12	SITE_NAME	! Name of radar site
	CHARACTER*6	MODE		! Mode of data set: 
					! FMSOCO -> FMchirp, SOrted, COrrected
					! UNSORT -> CODAR UNSORTED data
					!   SORT -> CODAR SORTED data
	REAL		FREQ		! WERA working frequency in MHz
	REAL		RANGE_WIDTH	! Range cell width [km]
	INTEGER		NORD		! "True" North (direction of array)
	REAL		DELTA_T		! Sample-Abstand (sec)
	INTEGER		NROB		! Farest range cell number (1 to 128)
	INTEGER		LAT_GRAD, LAT_MIN, LAT_SEC
	CHARACTER*1	EAST_OR_WEST
	INTEGER		LON_GRAD, LON_MIN, LON_SEC
	CHARACTER*1	NORTH_OR_SOUTH
	INTEGER		WINDOW		! 2 means Blackman-Harris window
					! used for range resolution
	INTEGER		NX		! Number of gridpoints to the East
	INTEGER		NY		! Number of gridpoints to the South
	REAL		RAN_OFF		! Distance zero at range cell #
	CHARACTER*12	GRID_NAME	! Name of file containing positions
					! of the (NX*NY) grid points


C*******************************************************************************
C
C	Open the data file
C
	IUN_DAT = 1
	WERA_DAT = '$DATA1:[GURGEL.PETTEN.GRID]963180000.VRA_WERA_SPEC'

	CALL OPEN_READ(IUN_DAT,WERA_DAT,IOS)

C*******************************************************************************
C
C	Read header information (512 bytes) from unit IUN_DAT to HEAD
C
	CALL READ_HEADER_WERA(IUN_DAT,HEAD)

C	
C*******************************************************************************
C
C
	DECODE( 4,'(I4)'  , HEAD(  1)) NSER
	DECODE( 2,'(I2)'  , HEAD( 16)) DAY
	DECODE( 3,'(A3)'  , HEAD( 19)) MONTH
	DECODE( 4,'(I4)'  , HEAD( 81)) YEAR	! Additional entry for Y2K
	DECODE( 2,'(I2)'  , HEAD( 26)) HH
	DECODE( 2,'(I2)'  , HEAD( 29)) MM
	DECODE( 3,'(A3)'  , HEAD( 32)) TIME_BASE
	DECODE(12,'(A12)' , HEAD( 37)) SITE_NAME
	DECODE( 6,'(A6)'  , HEAD( 49)) MODE
	DECODE( 6,'(F6.2)', HEAD( 65)) FREQ
	DECODE( 7,'(F7.4)', HEAD( 97)) RANGE_WIDTH
	DECODE( 3,'(I3)'  , HEAD(118)) NORD
	DECODE( 8,'(F8.6)', HEAD(132)) DELTA_T
	DECODE( 3,'(I3)'  , HEAD(151)) NROB
	DECODE( 3,'(I3)'  , HEAD(170)) LON_GRAD
	DECODE( 2,'(I2)'  , HEAD(174)) LON_MIN
	DECODE( 2,'(I2)'  , HEAD(177)) LON_SEC
	DECODE( 1,'(A1)'  , HEAD(180)) EAST_OR_WEST
	DECODE( 3,'(I3)'  , HEAD(188)) LAT_GRAD
	DECODE( 2,'(I2)'  , HEAD(192)) LAT_MIN
	DECODE( 2,'(I2)'  , HEAD(195)) LAT_SEC
	DECODE( 1,'(A1)'  , HEAD(198)) NORTH_OR_SOUTH
	DECODE( 1,'(I1)'  , HEAD(218)) WINDOW
	DECODE( 2,'(I2)'  , HEAD(224)) NX
	DECODE( 2,'(I2)'  , HEAD(231)) NY
	DECODE( 4,'(F4.2)', HEAD(241)) RAN_OFF
	DECODE(12,'(A12)' , HEAD(245)) GRID_NAME

	TYPE *, 'NSER............ ',NSER
	TYPE *, 'DAY............. ',DAY
	TYPE *, 'MONTH........... ',MONTH
	TYPE *, 'YEAR............ ',YEAR
	TYPE *, 'HH.............. ',HH
	TYPE *, 'MM.............. ',MM
	TYPE *, 'TIME_BASE....... ',TIME_BASE
	TYPE *, 'SITE_NAME....... ',SITE_NAME
	TYPE *, 'MODE............ ',MODE
	TYPE *, 'FREQ............ ',FREQ
	TYPE *, 'RANGE_WIDTH..... ',RANGE_WIDTH
	TYPE *, 'NORD............ ',NORD
	TYPE *, 'DELTA_T......... ',DELTA_T
	TYPE *, 'NROB............ ',NROB
	TYPE *, 'LON_GRAD........ ',LON_GRAD
	TYPE *, 'LON_MIN......... ',LON_MIN
	TYPE *, 'LON_SEC......... ',LON_SEC
	TYPE *, 'EAST_OR_WEST.... ',EAST_OR_WEST
	TYPE *, 'LAT_GRAD........ ',LAT_GRAD
	TYPE *, 'LAT_MIN......... ',LAT_MIN
	TYPE *, 'LAT_SEC......... ',LAT_SEC
	TYPE *, 'NORTH_OR_SOUTH.. ',NORTH_OR_SOUTH
	TYPE *, 'WINDOW.......... ',WINDOW
	TYPE *, 'NX.............. ',NX
	TYPE *, 'NY.............. ',NY
	TYPE *, 'RAN_OFF......... ',RAN_OFF
	TYPE *, 'GRID_NAME....... ',GRID_NAME

	CALL EXIT
	END