Smart New Satellite Shin Dong Youb Kim Tae Woo

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Presentation transcript:

Smart New Satellite 201014531 Shin Dong Youb 201214509 Kim Tae Woo 201414508 Kim Su Hyun 201414516 Park Min Ju

Satellite measuring SST satellite name sensor orbit altitude (km) spatial resolution temporal resolution (min) swath speed (km/s) band Aqua MODIS LEO P SS 705 1 99 2330 7.506 infrared Noaa AVHRR 2/3 850 1.1 102 3000 7.430 Adeos OCTS 805 25-50 101 1400 7.453 AMSR-E 27*16 1450 microwave Coriolis WINDSAT m/w radiometer 800 25 1000 7.456 TRMM TMI LEO 350 91 758.5 7.701 Table 1. SST satellites

Introduce satellite Infrared vs Microwave cloud spatial resolution Narrow and short phenomenon more details less errors

How to improve spatial resolution MASER(microwave amplification by stimulated emission of radiation) amplifier pumping wave Stimulated emission Stimulated emission Incoming photon Amplifying wave Figure 1. stimulated emission’s principle

How to improve temporal resolution Adjust satellite altitude Satellite’s speed & period eq. V= 𝐺 𝑀 𝐸 𝑅 = 2𝜋𝑅 𝑇 , T= 2𝜋𝑅 𝑉 LEO ranges 160km~2000km(160km altitude satellite = NS)  V ≒ 7.79km/sec  T ≒ 88 min(16 times per day) Revisit time  shorter

How to improve temporal resolution Is it possible 2513km of swath at NS? 2513km ≤ NS’s swath y = 0.225x + 6560 - α = 77.32˚ l = aβ - β = 22.5˚ - γ = 77.20˚ 77.32˚(α) > 77.20˚(γ) Figure 2. At 160km Figure 3. For 2513km swath

Expectations for Massive Use in the Future! conclusion Spatial resolution  more less than 25km  observation of smaller scale oceanic processes Temporal resolution  about 15min difference(vs WINDSAT) Spatial resolution & Temporal resolution observe all of regions with or without cloud decreasing errors between the data Expectations for Massive Use in the Future!

reference http://navercast.naver.com/contents.nhn?rid=102&contents_id=3406 http://www.remss.com/measurements/sea-surface-temperature http://www.remss.com/missions/tmi http://www.remss.com/missions/windsat http://weather.msfc.nasa.gov/sport/survey/windSat/WindSat_Reference_G uide.pdf https://nsidc.org/data/docs/daac/amsre_instrument.gd.html https://en.wikipedia.org/wiki/ADEOS_I http://noaasis.noaa.gov/NOAASIS/ml/avhrr.html http://ge.ssec.wisc.edu/modis-today/about.html

QnA

Thank you