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SAR-GEO Satellite oceanography - presentation 201214542 | Sang-gu Han
| So Hyun Bae
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INDEX Introduce Tsunami How to improve spatial temporal resolution
What improved sensor can do Conclusion Q & A INDEX
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Introduce
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Intro. Tsunami Do what How to LEO MEO GEO
Con. Q & A LEO MEO GEO Wikipedia,“Medium Earth orbit”,
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-> orbital period : 90 to 100 minutes
Intro. Tsunami Do what How to Con. Q & A LEO MEO GEO -> orbital period : 90 to 100 minutes -> use: Resource exploration ,Military Operation, Ocean- Atmosphere observation earthobservatory.nasa.gov/Features/.../page2.php,
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-> orbital period : 12 hours. -> use: Communication, Navigation,
Intro. Tsunami Do what How to Con. Q & A LEO MEO GEO -> orbital period : 12 hours. -> use: Communication, Navigation, GPS Wikipedia, “Molniya orbit“,
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Intro. Tsunami Do what How to LEO MEO GEO
Con. Q & A LEO MEO GEO -> orbital period : same as rotation period of earth -> use: meteorological satellite
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LEO GEO Intro. Tsunami Do what How to LEO MEO GEO Con. Q & A Orbit
Polar Equator Altitude 2000km 36000km Resolution High Low Uses • exploration of resources • Ocean, Atmosphere Observation • Military operation • broadcast • communication • environment satellite NOAA series FY-1series GOES, EUMETSAT, Fengyun, INSAT Advantage • Easy access to data • minimizes risk of missing data • lower in cost • can observe same location Dis- advantage • service fee • shorter life span • same position • more costly to install • Long path length • polar regions cannot be covered. GEO
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Tsunami
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Intro. Tsunami Do what How to Tsunami Damage Need
Con. Q & A Tsunami Damage Need
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6,000 injured 16,000 deaths 2,500 people missing Intro. Tsunami
Do what How to Con. Q & A Tsunami Damage 6,000 injured Need 16,000 deaths 2,500 people missing google,"east japan tsunami",
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Intro. Tsunami Do what How to Tsunami Damage Need
Con. Q & A Tsunami Damage Need
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What improved sensor can do
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Intro. Tsunami Do what How to Now Future
Con. Q & A Now Future East japan tsunami KOSC, KORDI
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SAR-GEO Intro. Tsunami Do what How to Now Future Con. Q & A
-> exact scale of tsunami -> time of arrival -> exact and real time observation information -> reduce damage -> lessen citizen’s uneasiness -> storm surge, large scale disaster -> permit weather cast more precise
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spatial temporal resolution
How to improve spatial temporal resolution
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Intro. Tsunami Do what How to Con. Q & A SAR Resol. Algorithm SAR GEO
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SAR Effect of broadening antenna But SAR need moving Intro. Tsunami
Do what How to Con. Q & A SAR Resol. SAR Algorithm Effect of broadening antenna But SAR need moving
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Intro. Tsunami Do what How to Con. Q & A SAR Resol. Algorithm rotating
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Improved Resolution Temporal resolution 15min spatial resolution 50m
Intro. Tsunami Do what How to Con. Q & A SAR Resol. Improved Resolution Algorithm Temporal resolution 15min spatial resolution 50m 112m per 15minutes We need Improved SAR and GEO rotating orbit and speed
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algorithm Intro. Tsunami Do what How to SAR Resol. Algorithm
Con. Q & A SAR Resol. algorithm Algorithm Doppler effect Rias coast Light angle
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Conclusion
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Q & A
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Thank you Satellite oceanography - presentation - Reference
Wikipedia,“Medium Earth orbit”, 네이버,“저궤도 위성”, earthobservatory.nasa.gov/Features/.../page2.php, google,"meo satellite", google, “Medium earth orbit“, Wikipedia, “Molniya orbit“, 네이버,“지진해일”, 정병표 , Jeong, Byeong-Pyo 저, “동북지반 태평양 앞바다 지진의 지진 쓰나미 피해의 개요와 몇 가지의 과제”, [한국방재학회지],11권제2호,p11 네이버,“쓰나미”, google,"east japan tsunami", 한국 해양연구소 | Sang-gu Han | So Hyun Bae
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