oceanography sci oly visual binder, Schemes and Mind Maps of Earth science

DynamicPlanet:OceanographyBinder

OceanBasins&Topography

•MajorFeatures:Continentalshelf,slope,rise,abyssalplain,ridge,trench,seamount,guyot.

•Mid-AtlanticRidge=divergentboundary;MarianaTrench=convergent.

•SONARmappingrevealsoceanfloorstructures.

PlateTectonics&Sea-FloorSpreading

•Convectioncurrentsinmantledriveplatemotion.

•Magneticstriping=proofofsea-floorspreading.

•Surfacecurrents=wind+Coriolis;Deepcurrents=density-driven(thermohaline).

•GulfStreamwarmsEurope;Upwelling=nutrientsrisetosurface.

•Coriolis:rightdeflectionNHemisphere,leftSHemisphere.

Waves&Tides

•Waves=energytransfer;Speed=wavelength/period.

•Tides=Moon+Sungravity.Springtides=strongest;Neaptides=weakest.

•Types:Diurnal,semidiurnal,mixed.

MarineEcosystems

•Photiczone=sunlightlayer;Aphotic=deepocean.

•Estuaries&coralreefs=highbiodiversity.

•Majorthreats:overfishing,coralbleaching,plasticpollution,acidification.

•Solutions:protectedzones,sustainablefishing,reducingCO₂.