Salinity 소금 조 201014502 곽민석 201214506 김상민 201214520 손지탁 201414541 허나윤

Contents ⅠIntroduction and background ⅤConclusion Ⅱ Disadvantages of aquarius/sac-d Ⅲ Improved sensor for measuring ocean salinity Ⅳ Calulation

Introduction and background

Introduction and background Salinty temperature

Introduction and background Limited shipping lanes

Introduction and background

Introduction and background Tb = e * T Tb The ocean radiometric brightness temperature e The emissivity T The absolute thermodynamic temperature

Introduction and background Decrease the emissivity

Disadvantage of Aquarius/sac-d Orbit & Altitude 657kilometers high Sun-synchronous orbit 98minutes one orbit Seven days mapping global open ocean

Disadvantage of Aquarius/sac-d Resolution & Footprint & Swath Resolution 150kilometers Swath 350kilometers Footprint 100kilometers

Disadvantage of Aquarius/sac-d Instrument

Improved sensor designed to measure ocean salinity Orbit & Altitude Oribit No change Altitude 700km Instrument & Resolution Spatial resolution 10km temporal resolution 8days Combine radar and radiometer Antenna reflectors twice as long as Aquarius. 360 degrees of the antenna

Improved sensor designed to measure ocean salinity Footprint & Swath Footprint 50km Swath 1000km Data products Level 4 data products (interpolation) -Argo observations

Calculation Altitude r -> 700km Earth’s radius RE -> about 6400km R=7100km GME=4*10^14m^3/s^2 V= 8km/s V=2 πR/T T=2 πR/V T=93minutes

Conclusion Salinity has a major effect Understand better ocean circulation and satellite

reference https://podaac.jpl.nasa.gov/SeaSurfaceSalinity   https://en.wikipedia.org/wiki/Aquarius_(SAC-D_instrument) http://www.utsa.edu/LRSG/Teaching/GEO6011/14-65287573.pdf https://www.esr.org/aquarius_sat/aquarius_main.html https://smap-archive.jpl.nasa.gov/science/MeasConcept/ https://en.m.wikipedia.org/wiki/Polar_orbit http://www.srh.noaa.gov/jetstream/remote/satellite.html http://www.jpl.nasa.gov/news/press_kits/aquariusLaunch.pdf

Q&A

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