Lampiran 1 Citra GMS-6 (MTSAT-1R) dengan format PGM (portable gray map)

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Lampiran 1 Citra GMS-6 (MTSAT-1R) dengan format PGM (portable gray map)

Citra GMS-6 pada tanggal 1 Januari 2006 0000 UTC

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Lampiran 2 Contoh data kalibrasi citra GMS-6 kanal infrared 1 (IR1)

IR1 pixval-temperature conversion table

IR1 Temperature of 0 pixval: 329.941500

IR1 Temperature of 1 pixval: 329.625500

IR1 Temperature of 2 pixval: 329.309500

IR1 Temperature of 3 pixval: 328.993500

IR1 Temperature of 4 pixval: 328.677500

IR1 Temperature of 5 pixval: 328.361500

IR1 Temperature of 6 pixval: 328.045500

IR1 Temperature of 7 pixval: 327.729500

IR1 Temperature of 8 pixval: 327.410000

IR1 Temperature of 9 pixval: 327.090000

IR1 Temperature of 10 pixval: 326.770000

IR1 Temperature of 11 pixval: 326.450000

IR1 Temperature of 12 pixval: 326.130000

IR1 Temperature of 13 pixval: 325.810000

IR1 Temperature of 14 pixval: 325.490000

IR1 Temperature of 15 pixval: 325.167414

...

IR1 Temperature of 251 pixval: 166.855000

IR1 Temperature of 252 pixval: 162.190000

IR1 Temperature of 253 pixval: 156.500000

IR1 Temperature of 254 pixval: 149.010000

IR1 Temperature of 255 pixval: 137.285000

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Lampiran 3 Script program yang digunakan untuk melakukan kalibrasi dan pemotongan citra

GMS-6

(Diperoleh di situs : http://lips.is.kochi-u.ac.jp/GMS-GrADS/GMS-GrADS.html)

/ pgm2bin --- IR1 pgm file to float-point binary /

/*

usage: pgm2bin {calibration.dat} {GMS.pgm} {GMS_out.grd}

Note that pgm comments must be stripped off first

*/

#include <stdio.h>

#include <string.h>

#include <malloc.h>

main(

int

argc,

char

**argv) {

FILE fp,fout,*fctl;

int

width,height;

char

buf[80], dummy[30],fname_ctl[30];

int

x,y,a,i;

int

img,ip,LATN,LATS,LONW,LONE;

float

cal[256],val;

/ first read the calibration table /

LATN=10;

LATS=-15;

LONW=90;

LONE=150;

fp = fopen(argv[1],"r");

fout = fopen(argv[3],"w");

// for new data skip the following 5 lines

fgets(buf,80,fp);

for (i=0;i<256;i++) {

fgets(buf,80,fp);

sscanf(buf,"%s %s %s %s %s %f",&dummy,

&dummy,&dummy,&dummy,&dummy,&cal[i]);

}

fgets(buf,80,fp);

for (i=0;i<256;i++) {

fgets(buf,80,fp);

sscanf(buf,"%s %s %s %s %s %f",&dummy,

&dummy,&dummy,&dummy,&dummy,&cal[i]);

}

fclose(fp);

/ next read pgm data /

fp = fopen(argv[2],"r");

for (i=0;i<3;i++) fgets(buf,80,fp);

sscanf(buf,"%d %d",&width,&height);

img = (

int

)malloc(widthheight*sizeof(

int

));

fgets(buf,80,fp);

ip = img;

for (y = 0; y<height; y++) {

for (x=0; x<width; x++) {

a = fgetc(fp);

*ip++=a;

}

fclose(fp);

**for (y = height-(20+LATS)20; y>height-(20+LATN)20; y--)**

Lanjutan

{

**for (x=(LONW-70)20; x<(LONE-70)20; x++) {**

a = (img + widthy + x);

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fwrite(&val,sizeof(

float

),1,fout);

// printf("%f:",val);

}

// printf("\n");

}

free(img);

fname_ctl[0]=

'\0'

;

strncat(fname_ctl,argv[3],strlen(argv[3])-3);

strcat(fname_ctl,"ctl

\0

");

printf("%s

\n

",fname_ctl);

fctl = fopen(fname_ctl,"w");

fprintf(fctl,"dset ^%s

\n

",argv[3]);

fprintf(fctl,"title GMS grid data

\n

");

fprintf(fctl,"undef -9999

\n

");

fprintf(fctl,"xdef %d linear %d 0.05

\n

",(LONE-LONW)*20,LONW);

fprintf(fctl,"ydef %d linear %d 0.05

\n

",(LATN-LATS)*20,LATS);

fprintf(fctl,"zdef 1 linear 1 1

\n

");

fprintf(fctl,"tdef 1 linear 00:00Z01JAN2000 60MN

\n

");

fprintf(fctl,"vars 1

\n

");

fprintf(fctl,"gms 0 99 land use

\n

");

fprintf(fctl,"endvars

\n

");

}

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Lampiran 4 Contoh script program yang digunakan dalam pengolahan data

Script program yang digunakan untuk mengubah format citra menjadi binari (perintah: ./script 1) #!/bin/bash # gcc pgm2binjawa.c -o pgm2binjawa.x # ##jam 00 ##rm -f MT1R06jan23.grd

./pgm2binjawa.x MT1R06010123CAL.dat MT1R06010123IR1.pgm MT1R06010123.grd MT1R06010123.ctl

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Lanjutan

##jam 00 digabung

##edit *.ctl

##TDEF 1 linear 00Z01JAN2005 1dy ##ganti jadi

##TDEF 31 linear 00Z01JAN2005.1dy ##DSET MT1R06010123.grd ##ganti jadi ##DSET MT1R06sep23.grd ################################# ##jam 01 ##rm -f MT1R06sep00.grd

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Lanjutan

##jam 01 digabung ##edit *.ctl

##TDEF 1 linear 00Z01JAN2005 1dy ##ganti jadi

##TDEF 31 linear 00Z01JAN2005.1dy ##DSET MT1R06010100.grd

##ganti jadi

##DSET MT1R06sep00.grd

#################################

script 2 untuk menbuka file di software GrADS dan mendapatkan nilai gradien antar masing-masing jam (perintah: gradsnc –b –l –c “script2_0023.scr”) *gradsnc -b -l -c "script2_0023.scr" 'reinit' 'open MT1R06092923.ctl' 'open MT1R06093000.ctl' 'gmst=gms.2-gms.2' 'gmst=gmst+(gms.2-gms.1)' 'set gxout fwrite'

'set fwrite MT1R0609290023.grd' 'd gmst'

'!cp MT1R06092923.ctl MT1R0609290023.ctl' 'quit'

Script 3 untuk mencari nilai gradien rata-rata bulanan (perintah: gradsnc -b -l -c "script-rataan-0023.scr") *gradsnc -b -l -c "script-rataan-0023.scr" 'reinit' 'open MT1R0601010023.ctl' 'open MT1R0601020023.ctl' 'open MT1R0601030023.ctl' 'open MT1R0601040023.ctl' 'open MT1R0601050023.ctl' 'open MT1R0601060023.ctl' 'open MT1R0601070023.ctl' 'open MT1R0601080023.ctl' 'open MT1R0601090023.ctl' 'open MT1R0601100023.ctl' 'open MT1R0601110023.ctl'

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Lanjutan

'open MT1R0601120023.ctl' 'open MT1R0601130023.ctl' 'open MT1R0601140023.ctl' 'open MT1R0601150023.ctl' 'open MT1R0601160023.ctl' 'open MT1R0601170023.ctl' 'open MT1R0601180023.ctl' 'open MT1R0601190023.ctl' 'open MT1R0601200023.ctl' 'open MT1R0601210023.ctl' 'open MT1R0601220023.ctl' 'open MT1R0601230023.ctl' 'open MT1R0601240023.ctl' 'open MT1R0601250023.ctl' 'open MT1R0601260023.ctl' 'open MT1R0601270023.ctl' 'open MT1R0601280023.ctl' 'open MT1R0601290023.ctl' 'open MT1R0601300023.ctl' 'gmst=gms.2-gms.2' 'gmst=gmst+(gms.1+gms.2+gms.3+gms.4+gms.5+gms.6+gms.7+gms.8+gms.9+gms.10+ gms.11+gms.12+gms.13+gms.14+gms.15+gms.16+gms.17+gms.18+gms.19+gms.20+gms .21+gms.22+gms.23+gms.24+gms.25+gms.26+gms.27+gms.28+gms.29+gms.30)' 'set gxout fwrite'

'set fwrite g-ave-jan-0023.grd' 'd gmst/30' 'close 30' 'close 29' 'close 28' 'close 27' 'close 26' 'close 25' 'close 24' 'close 23' 'close 22' 'close 21' 'close 20' 'close 19' 'close 18' 'close 17' 'close 16' 'close 15' 'close 14' 'close 13' 'close 12' 'close 11' 'close 10' 'close 9' 'close 8' 'close 7' 'close 6' 'close 5' 'close 4' 'close 3' 'close 2' 'close 1' 'quit'

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Lanjutan

Script 4 untuk menggabungkan nilai gradien rata-rata bulanan setiap jam ke dalam satu file bulanan

#!/bin/bash

rm -f g-ave-jan.grd

cat g-ave-jan-0023.grd >> g-ave-jan.grd cat g-ave-jan0100.grd >> g-ave-jan.grd cat g-ave-jan0201.grd >> g-ave-jan.grd cat g-ave-jan0302.grd >> g-ave-jan.grd cat g-ave-jan0403.grd >> g-ave-jan.grd cat g-ave-jan0504.grd >> g-ave-jan.grd cat g-ave-jan0605.grd >> g-ave-jan.grd cat g-ave-jan0706.grd >> g-ave-jan.grd cat g-ave-jan0807.grd >> g-ave-jan.grd cat g-ave-jan0908.grd >> g-ave-jan.grd cat g-ave-jan1009.grd >> g-ave-jan.grd cat g-ave-jan1110.grd >> g-ave-jan.grd cat g-ave-jan1211.grd >> g-ave-jan.grd cat g-ave-jan1312.grd >> g-ave-jan.grd cat g-ave-jan1413.grd >> g-ave-jan.grd cat g-ave-jan1514.grd >> g-ave-jan.grd cat g-ave-jan1615.grd >> g-ave-jan.grd cat g-ave-jan1716.grd >> g-ave-jan.grd cat g-ave-jan1817.grd >> g-ave-jan.grd cat g-ave-jan1918.grd >> g-ave-jan.grd cat g-ave-jan2019.grd >> g-ave-jan.grd cat g-ave-jan2120.grd >> g-ave-jan.grd cat g-ave-jan2221.grd >> g-ave-jan.grd cat g-ave-jan2322.grd >> g-ave-jan.grd

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Lampiran 9 Perbandingan nilai gradien TBB jam 18.00-00.00 WIB antara wilayah Jawa bagian

barat, tengah dan timur

Tabel nilai gradien TBB jam 18.00-00.00 WIB untuk wilayah Jawa bagian barat

Nilai gradien TBB jam 1800-0000 WIB grid koordinat 1800 -1900Y 1900 -2000Y 2000 -2100Y 2100 -2200Y 2200 -2300Y 2300 -0000Y 1 _{105.5-106 °BT}6.5-7 °LS -1.0001 2.0545 1.6910 2.5295 2.6093 1.9647 2 _{106-106.5 °BT}6-6.5 °LS 0.6526 4.5470 0.9768 -5.2902 -2.9757 2.4832 3 _{106-106.5 °BT}6.5-7 °LS -0.6148 3.1656 5.8091 4.5085 0.6942 1.5750 4 _{106.5-107 °BT}6-6.5 °LS 7.1363 4.5430 -7.2652 -3.9898 1.7468 4.9375 5 _{106.5-107 °BT}6.5-7 °LS -0.3819 4.1651 3.2437 3.1458 5.4942 4.5130 6 _{106.5-107 °BT}7-7.5 °LS -1.4548 2.8306 5.5240 2.2259 3.8237 2.1420 7 _{107-107.5 °BT}6-6.5 °LS 3.4592 0.8512 -0.4792 2.2724 3.7971 2.7315 8 _{107-107.5 °BT}6.5-7 °LS 2.4331 4.9776 6.0850 4.9651 4.1669 1.5319 9 _{107-107.5 °BT}7-7.5 °LS 2.1450 5.1183 4.1209 3.4591 4.5437 1.5936 10 _{107.5-108 °BT}6-6.5 °LS 0.4292 1.3628 0.5323 2.4182 1.6946 0.2845 11 _{107.5-108 °BT}6.5-7 °LS 3.4988 3.5832 4.7198 3.3256 2.6481 0.5185 12 _{107.5-108 °BT}7-7.5 °LS 1.0430 0.5606 3.4451 3.6392 3.6918 0.8895 13 _{108-108.5 °BT}6.5-7 °LS 1.3446 -0.0082 3.2607 2.4247 2.7556 5.1784 14 _{108-108.5 °BT}7-7.5 °LS 0.3704 0.4824 3.4667 4.3709 5.0136 2.7858

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Lanjutan

Tabel nilai gradien TBB jam 18.00-00.00 WIB untuk wilayah Jawa bagian tengah

Nilai gradien TBB jam 1800-0000 WIB Grid Koordinat 1800

-1900Y 2000Y 1900 - 2100Y 2000 - 2200Y 2100 - 2300Y 2200 - 0000Y 2300 -1 _{108.5-109 °BT}6.8-7.3 °LS -2.2755 2.3279 2.6378 4.7613 2.8759 0.6858 2 _{108.5-109 °BT}7.3-7.8 °LS -3.2144 -1.9607 -2.0898 1.6641 3.3020 1.1774 3 _{109-109.5 °BT}6.8-7.3 °LS -0.9194 -0.2236 2.3132 2.0859 1.8637 0.2905 4 _{109-109.5 °BT}7.3-7.8 °LS -0.6241 -0.5307 -2.3365 0.7989 3.4517 4.5687 5 _{109.5-110 °BT}6.9-7.4 °LS -1.8995 -2.2092 3.7217 1.4693 1.8106 0.3482 6 _{109.5-110 °BT}7.4-7.9 °LS 2.8946 -0.9679 2.2906 1.0962 2.9834 2.2322 7 _{110-110.5 °BT}7-7.5 °LS -1.8216 1.7826 4.0293 1.9678 -2.0336 2.6760 8 _{110-110.5 °BT}7.5-8 °LS -1.8716 -1.4106 1.7856 5.4430 1.7808 0.8064 9 _{110.5-111 °BT}6.6-7.1 °LS -3.7276 -1.1516 -1.9222 -0.2562 1.2805 1.9742 10 _{110.5-111 °BT}7.1-7.6 °LS -2.5488 1.6394 1.8401 1.5833 1.9857 4.8489 11 _{110.5-111 °BT}7.6-8.1 °LS -6.1985 -0.4667 2.7136 4.1639 3.7620 4.0194 12 _{111-111.5 °BT}6.7-7.2 °LS -2.4925 1.1389 2.2301 1.9040 0.9530 1.7574 13 _{111-111.5 °BT}7.2-7.7 °LS 0.0481 3.0696 4.3893 1.8660 1.4669 3.3350 14 _{111-111.5 °BT}7.7-8.2 °LS -1.3915 2.0146 0.5410 0.9106 3.3137 3.9847

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Lanjutan

Tabel nilai gradien TBB jam 18.00-00.00 WIB untuk wilayah Jawa bagian timur

Nilai gradien TBB jam 1800-0000 WIB Grid Koordinat 1800 -1900Y 1900 -2000Y 2000 -2100Y 2100 -2200Y 2200 -2300Y 2300 -0000Y 1 _{111.5-112 °BT}6.7-7.2 °LS -0.4035 -0.5002 0.1957 2.2508 1.9144 -1.3836 2 _{111.5-112 °BT}7.7-7.7 °LS 1.3275 3.4777 3.9563 5.4763 2.3382 0.4733 3 _{111.5-112 °BT}7.7-8.2 °LS 1.7587 0.0594 1.2200 1.5858 3.1027 1.7578 4 _{112-112.5 °BT}6.9-7.4 °LS -3.5082 -0.5775 0.5108 0.1010 -0.9610 1.2032 5 _{112-112.5 °BT}7.4-7.9 °LS 1.1262 0.6918 1.4913 1.3150 0.8437 1.2012 6 _{112-112.5 °BT}7.9-8.4 °LS 0.6486 2.2647 0.5939 -0.2675 -0.0483 0.4020 7 _{112.5-113 °BT}7-7.5 °LS -1.3977 -1.6450 0.2408 -0.1994 1.2197 1.2024 8 _{112.5-113 °BT}7.5-8 °LS 1.4213 -0.5733 0.8080 -3.5416 -0.9604 -0.1814 9 _{112.5-113 °BT}8-8.5 °LS 0.8071 -0.0869 -0.1956 -1.5818 -1.3719 2.0502 10 _{113-113.5 °BT}7.8-8.3 °LS 1.1858 -1.6532 1.1642 -2.3060 -1.0540 0.7587 11 _{113.5-114 °BT}7.6-8.1 °LS 0.5300 -2.0459 -0.7241 -2.3332 0.3797 1.2230 12 _{113.5-114 °BT}8.1-8.6 °LS 1.7205 1.2100 0.1091 -1.9991 -1.3866 1.7232 13 _{114-114.5 °BT}7.7-8.2 °LS -0.5090 -0.7504 -1.2373 -0.6035 0.4220 -0.2374 14 _{114-114.5 °BT}8.2-8.7 °LS -0.7272 -0.6288 -0.6833 -1.5245 -2.9885 0.6801

Lampiran 1 Citra GMS-6 (MTSAT-1R) dengan format PGM (portable gray map)