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ALOS-2 PALSAR-2

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  • ¹ß¸òÅÀÄ̲á»þ¹ï: Àµ¸á
  • ²óµ¢Æü¿ô: 14Æü
  • µ°Æ»ÊÝ»ý¾õ¶·¤Ï¡Þ500m¥Á¥å¡¼¥ÖÆâ¤Ë³ÎΨ99.99%¤ÇÊÝ»ý (2014/08/04-2015/08/02) (»²¹Í»ñÎÁ P12)

¼þÇÈ¿ô / ÂÓ°èÉý

https://www.soumu.go.jp/main_content/000362101.pdf

  • 1.2575GHz / 84MHz (22.9 cm) for spotlight mode & strip map 3m mode
  • 1.2575GHz or 1.2365GHz or 1.2785GHz / 42MHz or 28MHz for strip map 6m & 10m modes.
  • 1.2575GHz or 1.2365GHz or 1.2785GHz / 14MHz or 28MHz for ScanSAR modes.

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  • Æþ¼Í³Ñ8ÅÙ~70ÅÙ
  • ¡ÖALOS¤Ë¤Ï¤Ê¤¤º¸±¦´Ñ¬µ¡Ç½¤ò»ý¤¿¤»¤ë¤³¤È¤Ê¤É¤Ë¤è¤ê´Ñ¬²ÄǽÎΰ褬3ÇܼåÄøÅ٤ޤdzÈÂç¡Ê870km¢ª2,320km¡Ë¡×
  • ¥¢¥ó¥Æ¥Ê¤ò¿¶¤ë¤¿¤á¤Î¥í¡¼¥ë³Ñ: ¡Þ30ÅÙ
  • ±¦¤âº¸¤â¸þ¤±¤ë¤±¤É, ¿¤¤¤Î¤Ï±¦¸þ¤­¡£(»²¹Í»ñÎÁ P13, P21)
  • Ãí: ±¦¸þ¤­¤À¤ÈË̶ˤò´Ñ¬¤·¤ä¤¹¤¯, º¸¸þ¤­¤À¤ÈÆî¶Ë¤ò´Ñ¬¤·¤ä¤¹¤¤¡£

´Ñ¬¥â¡¼¥É

»²¹Íʸ¸¥:

°Ê²¼(Æþ¼Í³Ñ37Å٤ǤΥì¥ó¥¸Ê¬²òǽ x ¥¢¥¸¥Þ¥¹Ê¬²òǽ x ´Ñ¬Éý (x ´Ñ¬Ĺ¤µ))

  • ¥¹¥Ý¥Ã¥È¥é¥¤¥È¥â¡¼¥É (SPT; SBS; 3m x 1m x 25km x 25km; ñÊÐÇÈ; ºÇ¹âʬ²òǽ): 8deg~70deg
  • ¹âʬ²òǽ(strip map)[3m]¥â¡¼¥É (SM1; UBS, UBD; 3m x 3m x 55km x 70km; ñor2ÊÐÇÈ): ÆüËܰ襤¥ó¥¿¡¼¥Õ¥§¥í¥á¥È¥êÍÑ¥Ù¡¼¥¹¥Þ¥Ã¥×
  • ¹âʬ²òǽ(strip map)[6m]¥â¡¼¥É (SM2; HBS, HBD; 6.0m x 4.3m x 55km x 70km; ñor2ÊÐÇÈ): ¿å³²´Ñ¬¡£
  • ¹âʬ²òǽ(strip map)[6m]¥â¡¼¥É (SM2; HBQ; 5.1m x 4.3m x 40~50km x 70km; 4ÊÐÇÈ): (FP6-3¤Ïswath 50­Ò¡£FP6-4〜FP6-7¤Ïswath 40­Ò)
  • ¹âʬ²òǽ(strip map)[10m]¥â¡¼¥É (SM3; FBS, FBD; 9.1m x 5.3m x 70km x 70km; ñor2ÊÐÇÈ): PALSAR¤Î·Ñ¾µ¡£
  • ¹âʬ²òǽ(strip map)[10m]¥â¡¼¥É (SM3; FBQ; 8.7m x 5.3m x 30km x 70km; 4ÊÐÇÈ): PALSAR¤Î·Ñ¾µ¡£
  • ¹­°è´Ñ¬(ScanSAR)¥â¡¼¥É (WD1; WWS, WWD; 47.5m(5look) x 77.7m(3look) x 350.5km x 355km; ñor2ÊÐÇÈ; ¡Ö28MHz¡×)
  • ¹­°è´Ñ¬(ScanSAR)¥â¡¼¥É (WD1; WBS, WBD; 95.1m(5look) x 77.7m(3look) x 350.5km x 355km; ñor2ÊÐÇÈ; ¡Ö14MHz¡×)
  • ¹­°è´Ñ¬(ScanSAR)¥â¡¼¥É (WD2; VBS, VBD; 44.2m x 56.7m x 489.5km x 355km; ñor2ÊÐÇÈ; ¡Ö490km¡×)
  • ¥¹¥Ý¥Ã¥È¥é¥¤¥È¥â¡¼¥É¤ÏALOS-2¤Ç½éÅо졣ALOS-1¤Ë¤Ï̵¤«¤Ã¤¿¡£
  • ά¸ì²òÀâ
    • UBS = Ultra Fine Beam Single pol.
    • HBQ = High Beam Quad pol.
    • WBD = Wide Swath Beam Dual Pol.

·Ðǯ´Ñ¬

https://www.eorc.jaxa.jp/ALOS/jp/alos-2/obs/pal2_obs_annu_j.htm

  • F2-5 SM3¡ÊStripMap 10m¡Ë 28.2deg
  • F2-6 SM3¡ÊStripMap 10m¡Ë 32.7deg
  • F2-7 SM3¡ÊStripMap 10m¡Ë 36.2deg
  • W2 ScanSAR 34.9 deg

¥Ó¡¼¥à¤È¾È¼ÍÈÏ°Ï

  • ScanSAR: ¾È¼ÍÊý¸þ¤òÊ£¿ô¤Î¥Ó¡¼¥à¤Ç¥«¥Ð¡¼¤¹¤ë¡£350 kmÉý¥â¡¼¥É¤Ï5ËܤΥӡ¼¥à, 490 kmÉý¥â¡¼¥É¤Ï7ËܤΥӡ¼¥à¤òÀÚ¤êÂؤ¨¤ë¡£200¡Á300¥Ñ¥ë¥¹¤´¤È¤ËÀÚ¤êÂؤ¨¤ë¡£
  • ScanSAR°Ê³°: ¾È¼ÍÊý¸þ¤Î¥Ó¡¼¥àÀÚ¤êÂؤ¨¤Ï¤·¤Ê¤¤¡Ê1¥·¡¼¥óÃæ¤Ï¸ÇÄê¡Ë¡£¤Ò¤È¤Ä¤Î¥Ó¡¼¥àÈÖ¹æ¤ËÂФ·¤ÆÊ£¿ô¤Î¾È¼ÍÊý¸þ¤Ï¸ºß¤·¤Ê¤¤¡£¤Ä¤Þ¤ê¡¢¤Ò¤È¤Ä¤Î¥Ó¡¼¥àÈÖ¹æ¤Î¥Ó¡¼¥à¤¬¾È¼Í¤¹¤ëÃÏɽ¥¿¡¼¥²¥Ã¥È¤Ï¡¢¤½¤Î¥Ó¡¼¥à¤¬¥°¥é¥¦¥ó¥É¥ì¥ó¥¸Êý¸þ¤Ë¾¡¼ê¤Ë¹­¤¬¤ë¤³¤È¤Ç¥«¥Ð¡¼¤·¡ÊÎã: U2-7¤ÏÆþ¼Í³Ñ34.1ÅÙ¡Á38.0ÅÙ¡Ë, ¤½¤Î¥ê¥¿¡¼¥ó¤ò¥ì¥ó¥¸°µ½Ì¤Ç²èÁü²½¤¹¤ë¡£

¥×¥í¥À¥¯¥È¥ì¥Ù¥ë

»²¹Íʸ¸¥:

  • L1.0
  • L1.1 (geo reference) SLC (single look complex)¡£¥ì¥ó¥¸°µ½Ì¡¦£±¥ë¥Ã¥¯¥¢¥¸¥Þ¥¹°µ½Ì¸å¤Î¥¹¥é¥ó¥È¥ì¥ó¥¸¾å¤ÎÊ£ÁÇ¿ô¥Ç¡¼¥¿¡£¹­°è´Ñ¬¥â¡¼¥É¤Ç¤Ï¡¢¥¹¥­¥ã¥óñ°Ì¤Ç¥¤¥á¡¼¥¸¥Õ¥¡¥¤¥ë¤¬ºîÀ®¤µ¤ì¤ë¡£
  • L1.5 (geo reference or geo coded) ¥ì¥ó¥¸°µ½Ì¡¦¥Þ¥ë¥Á¥ë¥Ã¥¯¥¢¥¸¥Þ¥¹°µ½Ì¡¢ÃÏ¿ÞÅê±Æ¤·¤¿¿¶Éý¥Ç¡¼¥¿¡£¥°¥é¥¦¥ó¥É¥ì¥ó¥¸¡£
  • L2.1 (geo reference or geo coded) L1.1¤ËDEM¤òÍѤ¤¤Æ¥ª¥ë¥½ÊäÀµ¡£
  • L3.1 (geo reference) L1.5¤Ë²è¼ÁÊäÀµ¡Ê»¨²»½üµî½èÍý¡¢¥À¥¤¥Ê¥ß¥Ã¥¯¥ì¥ó¥¸°µ½Ì½èÍý¡Ë¤ò¹Ô¤Ã¤¿¥Ç¡¼¥¿¡£
  • ¥ª¥ë¥½ÊäÀµ¤ÏL2.1¤À¤±¡£
  • ¥Ô¥¯¥»¥ë¥µ¥¤¥º¤Ï¥ì¥Ù¥ë¤Ë¤è¤Ã¤Æ°ã¤¦¡£
    • ¥¹¥Ý¥Ã¥È¥é¥¤¥È¥â¡¼¥É L1.5, L3.1: 0.625m
    • ¥¹¥Ý¥Ã¥È¥é¥¤¥È¥â¡¼¥É L2.1: 0.625m or 1.25m or 2.5m
    • ¹­°è´Ñ¬(ScanSAR)¥â¡¼¥É L1.5, L3.1: 25m
    • ¹­°è´Ñ¬(ScanSAR)¥â¡¼¥É L2.1: 25m or 50m or 100m

¥Õ¥¡¥¤¥ë̿̾µ¬Â§

¥·¡¼¥óID = AAAAABBBBB CC-YYMMDD
AAAAA : ±ÒÀ±¡¦¥»¥ó¥µ¼ïÊÌ¡ÊALOS2¡Ë
BBBBB : ¥·¡¼¥óÃæ¿´¤ÎÄÌ»»¼þ²óÈÖ¹æ
CCCC: ¥·¡¼¥óÃæ¿´¤Î¥Õ¥ì¡¼¥àÈÖ¹æ
-: ¥»¥Ñ¥ì¡¼¥¿
YYMMDD: ¥·¡¼¥óÃæ¿´¤Î´Ñ¬ǯ·îÆü¡ÊYY¤ÏÀ¾Îñǯ¤Î²¼2·å¡¢MM¤Ï·î, DD¤ÏÆü¡Ë
¥×¥í¥À¥¯¥ÈID = DDDEFFFGHI
DDD: ´Ñ¬¥â¡¼¥É (UBS¤È¤«HBQ¤È¤«)
E: º¸±¦´Ñ¬ (L: º¸, R: ±¦)
FFF: ½èÍý¥ì¥Ù¥ë (1.0, 1.1, 1.5, 3.1)
G: ½èÍý¥ª¥×¥·¥ç¥ó (G: geo-coded, R: geo-referenced, _: »ØÄê¤Ê¤·)
H: ÃÏ¿Þ¿ÞË¡ (U: UTM, P: PS, M: MER, L: LCC, _: »ØÄê¤Ê¤·)
I: ¾º¹ß¥Î¡¼¥É(A: ascending, D: descending) 
ÊÐÇȾðÊó (Á÷¿®¡¦¼õ¿®¤Î½ç) = XX
¹­°è´Ñ¬¥ì¥Ù¥ë1.1¤Î¥¤¥á¡¼¥¸¥Ç¡¼¥¿¤ËÉÕÍ¿¤¹¤ë¥¹¥­¥ã¥ó¾ðÊó¡Ê¾ÜºÙ¤Ï¥Þ¥Ë¥å¥¢¥ë»²¾È¡Ë

Îã: ALOS2492750284-230708 ... 0284¤Ï¥Õ¥ì¡¼¥à280¤ò¥·¡¼¥ó¥·¥Õ¥È+4¤·¤¿Îΰ衣

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  • ¾®·¿ÀÖ³°¥«¥á¥éCIRC¤âÅëºÜ¡£
  • ¡ÖÁ÷¿®ÅÅÎϤζ¯²½¡¢»ÈÍѤ¹¤ë¼þÇÈ¿ôÂÓ°è¤Î³ÈÂç¡¢2¤Ä¤ÎÆÈΩ¤·¤¿¥Ó¡¼¥à¤Ç¼õ¿®¤ò¹Ô¤¦¥Ç¥å¥¢¥ë¥Ó¡¼¥àÊý¼°¡¢Ê£¿ô¤Î¼ïÎà¤Î¿®¹æ¤òÁ÷¿®¤¹¤ë¥Á¥ã¡¼¥×ÊÑÄ´¤Ê¤É¤Î¿·¤·¤¤µ»½Ñ¤ÎºÎÍѤˤè¤ê¡¢¹â¤¤Ê¬²òǽ¡¢¹­¤¤´Ñ¬Éý¡¢¹â¤¤»ëǧÀ­¤òãÀ®¤·¤¿¡¢À¤³¦¤ËÎà¤ò¸«¤Ê¤¤¹âÀ­Ç½¤Î¥»¥ó¥µ¤È¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£¡×
  • ¥¢¥ó¥Æ¥Ê¥µ¥¤¥º¤Ï3mx10m (3mx2m¤ò5Ëçʤ٤Ƥë)
  • https://www.eorc.jaxa.jp/ALOS-2/about/jpalsar2.htm
  • day ID starts from 2014/05/24. That day is "day1".
    • How to convert day ID to real date? ... You should use python datetime module!
import datetime
dayID=1234
day0=datetime.datetime(2014, 5, 24)
print ((day0 + datetime.timedelta(dayID)).strftime("%Y-%m-%d"))
  • ¾®·¿ÀÖ³°¥«¥á¥éCIRC¤âÅëºÜ¡£
  • ¡ÖÁ÷¿®ÅÅÎϤζ¯²½¡¢»ÈÍѤ¹¤ë¼þÇÈ¿ôÂÓ°è¤Î³ÈÂç¡¢2¤Ä¤ÎÆÈΩ¤·¤¿¥Ó¡¼¥à¤Ç¼õ¿®¤ò¹Ô¤¦¥Ç¥å¥¢¥ë¥Ó¡¼¥àÊý¼°¡¢Ê£¿ô¤Î¼ïÎà¤Î¿®¹æ¤òÁ÷¿®¤¹¤ë¥Á¥ã¡¼¥×ÊÑÄ´¤Ê¤É¤Î¿·¤·¤¤µ»½Ñ¤ÎºÎÍѤˤè¤ê¡¢¹â¤¤Ê¬²òǽ¡¢¹­¤¤´Ñ¬Éý¡¢¹â¤¤»ëǧÀ­¤òãÀ®¤·¤¿¡¢À¤³¦¤ËÎà¤ò¸«¤Ê¤¤¹âÀ­Ç½¤Î¥»¥ó¥µ¤È¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£¡×
Last modified:2023/11/13 10:19:44
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