THIS PROJECT ADAPTS EXISTING SPACE PLASMA MODELS TO STUDY SPATIAL ASYMMETRY IN THE OCEANS OF JUPITERS MOON EUROPA. ELECTROMAGNETIC INTERACTIONS BETWEEN EUROPAS SUBSURFACE OCEANS AND THE SURROUNDING PLASMA ENVIRONMENT ALLOW FOR PROBING THE SUBSURFACE STRUCTURE WITH CAREFUL MODELING. COLLABORATION WITH NASA STAFF SCIENTIST STEVE VANCE INCLUDING AN UPCOMING SUMMER INTERNSHIP AT JPL SUPPORTS THE INTERDISCIPLINARY NATURE OF THIS RESEARCH THROUGH HIS EXPERTISE IN GEOPHYSICAL MODELING. DR. VANCES THERMODYNAMIC MODELS FOR ICY MOON INTERIOR PROPERTIES WILL BE USED TO GENERATE SOME ASPECTS OF SUBSURFACE MODELS INCLUDING ELECTRIC CONDUCTIVITY. A 3D MULTI-FLUID MODEL IN CONJUNCTION WITH A 1 D INTERIOR CONDUCTIVITY MODEL WILL BE GRADUALLY MADE MORE COMPLEX. WE SHIFT FROM AVERAGING OVER ALL OCEAN PROPERTIES (AS IN PAST RESEARCH) TOWARD MODELS THAT DEMONSTRATE SPATIAL ASYMMETRY IN THE OCEANS. EACH CHANGE WILL BE STUDIED FOR ITS CONNECTION TO EUROPAS SUBSURFACE-MAGNETOSPHERE COUPLING WHICH IMPROVES THE EXPLANATORY POWER OF OUR MODELING TECHNIQUES. NO PREVIOUS STUDY HAS INVESTIGATED THE EFFECTS OF OCEAN ASYMMETRY ON EUROPAS MAGNETIC SIGNATURE; FINDING ASYMMETRY COULD REVOLUTIONIZE OUR UNDERSTANDING OF EUROPA. COMPARISON TO MEASUREMENTS BY THE GALILEO SPACECRAFT WILL ALLOW US TO PLACE LIMITS ON THE DEGREE OF ASYMMETRY THAT MAY BE PRESENT IN THESE MEASUREMENTS. MODELS THAT FIT WELL WITH GALILEO DATA WILL BE USED TO CREATE PROJECTIONS FOR THE UPCOMING EUROPA CLIPPER MISSION
$135,000FY2020National Aeronautics and Space AdministrationNASA
University Of Washington, Seattle WA