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WE PROPOSE TO BUILD A FRAMEWORK FOR THEP CORONAL AUTOMATED ANALYSIS OF SHOCKS AND WAVES (CASHEW). THE PROPOSED WORK ADDRESSES THE NASA HELIOPHYSICS GUEST INVESTIGATORS SUB-ELEMENT B.4.1: OPEN DATA-DEVELOPMENT ELEMENT (ODDE) IN SUPPORT OF THE CURRENT HELIOPHYSICS SYSTEM OBSERVATORY OPERATING MISSIONS . IT WILL COMBINE ANALYSIS OF NASA HELIOPHYSICS SYSTEM OBSERVATORY DATA PRODUCTS AND RELEVANT DATA-DRIVEN MODELS INTO AN AUTOMATED SYSTEM FOR THE CHARACTERIZATION OF CORONAL WAVES AND SHOCKS AND THE EVALUATION OF THEIR CAPABILITY TO ACCELERATE SEPS. CORONAL MASS EJECTIONS (CMES) ARE ONE OF THE MAIN PHENOMENA THAT MODIFY SPACE WEATHER IN THE HELIOSPHERE. AMONG OTHER EFFECTS DURING THEIR HELIOSPHERIC PROPAGATION THEY ROUTINELY DRIVE COLLISIONLESS SHOCKS WHICH IN TURN MAY PRODUCE SIGNIFICANT FLUXES OF SOLAR ENERGETIC PARTICLES (SEPS). RECENT STUDIES HAVE USED EXTREME UV (EUV) OBSERVATIONS TO SHOW THE CONNECTION OF CORONAL EUV WAVES TO METRIC RADIO TYPE II BURSTS IN THE CORONAL PHASES OF CMES. THIS SIGNIFIES THAT CME-DRIVEN SHOCKS CAN EXIST LOW IN THE CORONA AND MAY ALREADY ACCELERATE SEPS AT THEIR VERY INITIAL STAGES. CHARACTERIZING CORONAL SHOCKS HAS ONLY BECOME POSSIBLE THROUGH REMOTE MEASUREMENTS FROM INSTRUMENTS ON THE SOHO STEREO AND SDO SPACECRAFT. EUV IMAGING WITH THE ATMOSPHERIC IMAGING ASSEMBLY(AIA) INSTRUMENT ON SDO HAS PROVED PARTICULARLY USEFUL FOR DETECTING LARGE-SCALE SHORT-LIVED CORONAL BRIGHT FRONTS WHICH COMBINED WITH RADIO OBSERVATIONS HOLDS GREAT PROMISE FOR EARLY CME-DRIVEN SHOCK CHARACTERIZATION CAPABILITY. THIS CHARACTERIZATION CAN FURTHER BE AUTOMATED AND RELATED TO MODELS OF PARTICLE ACCELERATION TO PRODUCE ESTIMATES OF PARTICLE FLUXES EARLY IN EVENTS. THE CASHEW FRAMEWORK WILL BE EXTENSIVELY TESTED AND VALIDATED ON A REPRESENTATIVE LIST OF CORONAL BRIGHT FRONT EVENTS. SOME OF THE SPECIFIC SCIENTIFIC QUESTIONS THAT CAN BE ADDRESSED THROUGH ANALYSES OF THE PROPOSED DATA PRODUCTS ARE 1) TO WHAT ENERGIES CAN CORONAL SHOCKS ACCELERATE SOLAR ENERGETIC PARTICLES? 2) HOW DOES CORONAL SHOCK ACCELERATION EFFICIENCY VARY WITH TIME AND LOCATION? 3) WHAT REMOTE OBSERVABLES ARE RELEVANT FOR DETERMINATION OF SHOCK ACCELERATION EFFICIENCY? THE PRODUCTS OF THE PROPOSED WORK WILL ENABLE AND FACILITATE FUTURE STUDIES OF CORONAL SHOCK WAVE PROPERTIES AS WELL AS THEIR INFLUENCE ON SEP PRODUCTION AND HELIOSPHERIC CONNECTIVITY. THE CASHEW FRAMEWORK AND ITS RESULTS WILL BE MADE FREELY AVAILABLE ONLINE FOR RESEARCHERS TO USE VIA THE NASA SOLAR DATA ANALYSIS CENTER. THIS PROPOSAL IS RELEVANT TO THE NRC S CURRENT DECADAL SURVEY OF SOLAR AND SPACE PHYSICS AND ITS KEY SCIENCE GOAL 1. DETERMINE THE ORIGINS OF THE SUN'S ACTIVITY AND PREDICT THE VARIATIONS IN THE SPACE ENVIRONMENT . IT WILL ENABLE RESEARCH RELEVANT TO NASA'S STRATEGIC GOAL TO UNDERSTAND THE SUN AND ITS INTERACTIONS WITH THE EARTH AND THE SOLAR SYSTEM AND TO THE FOLLOWING NASA HELIOPHYSICS SCIENCE OBJECTIVES: OPEN THE FRONTIER TO SPACE ENVIRONMENTAL PREDICTION: UNDERSTAND THE FUNDAMENTAL PHYSICAL PROCESSES OF THE SPACE ENVIRONMENT FROM THE SUN TO EARTH AND SAFEGUARD THE JOURNEY OF EXPLORATION: MAXIMIZE THE SAFETY AND PRODUCTIVITY OF HUMAN AND ROBOTIC EXPLORERS BY DEVELOPING THE CAPABILITY TO PREDICT THE EXTREME AND DYNAMIC CONDITIONS IN SPACE.

$74,070FY2020National Aeronautics and Space AdministrationNASA

Association Of Universities For Research In Astronomy, Inc., Tucson AZ

Investigators

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WE PROPOSE TO BUILD A FRAMEWORK FOR THEP CORONAL AUTOMATED ANALYSIS OF SHOCKS AND WAVES (CASHEW). THE PROPOSED WORK ADDRESSES THE NASA HELIOPHYSICS GUEST INVESTIGATORS SUB-ELEMENT B.4.1: OPEN DATA-DEVELOPMENT ELEMENT (ODDE) IN SUPPORT OF THE CURRENT HELIOPHYSICS SYSTEM OBSERVATORY OPERATING MISSIONS . IT WILL COMBINE ANALYSIS OF NASA HELIOPHYSICS SYSTEM OBSERVATORY DATA PRODUCTS AND RELEVANT DATA-DRIVEN MODELS INTO AN AUTOMATED SYSTEM FOR THE CHARACTERIZATION OF CORONAL WAVES AND SHOCKS AND THE EVALUATION OF THEIR CAPABILITY TO ACCELERATE SEPS. CORONAL MASS EJECTIONS (CMES) ARE ONE OF THE MAIN PHENOMENA THAT MODIFY SPACE WEATHER IN THE HELIOSPHERE. AMONG OTHER EFFECTS DURING THEIR HELIOSPHERIC PROPAGATION THEY ROUTINELY DRIVE COLLISIONLESS SHOCKS WHICH IN TURN MAY PRODUCE SIGNIFICANT FLUXES OF SOLAR ENERGETIC PARTICLES (SEPS). RECENT STUDIES HAVE USED EXTREME UV (EUV) OBSERVATIONS TO SHOW THE CONNECTION OF CORONAL EUV WAVES TO METRIC RADIO TYPE II BURSTS IN THE CORONAL PHASES OF CMES. THIS SIGNIFIES THAT CME-DRIVEN SHOCKS CAN EXIST LOW IN THE CORONA AND MAY ALREADY ACCELERATE SEPS AT THEIR VERY INITIAL STAGES. CHARACTERIZING CORONAL SHOCKS HAS ONLY BECOME POSSIBLE THROUGH REMOTE MEASUREMENTS FROM INSTRUMENTS ON THE SOHO STEREO AND SDO SPACECRAFT. EUV IMAGING WITH THE ATMOSPHERIC IMAGING ASSEMBLY(AIA) INSTRUMENT ON SDO HAS PROVED PARTICULARLY USEFUL FOR DETECTING LARGE-SCALE SHORT-LIVED CORONAL BRIGHT FRONTS WHICH COMBINED WITH RADIO OBSERVATIONS HOLDS GREAT PROMISE FOR EARLY CME-DRIVEN SHOCK CHARACTERIZATION CAPABILITY. THIS CHARACTERIZATION CAN FURTHER BE AUTOMATED AND RELATED TO MODELS OF PARTICLE ACCELERATION TO PRODUCE ESTIMATES OF PARTICLE FLUXES EARLY IN EVENTS. THE CASHEW FRAMEWORK WILL BE EXTENSIVELY TESTED AND VALIDATED ON A REPRESENTATIVE LIST OF CORONAL BRIGHT FRONT EVENTS. SOME OF THE SPECIFIC SCIENTIFIC QUESTIONS THAT CAN BE ADDRESSED THROUGH ANALYSES OF THE PROPOSED DATA PRODUCTS ARE 1) TO WHAT ENERGIES CAN CORONAL SHOCKS ACCELERATE SOLAR ENERGETIC PARTICLES? 2) HOW DOES CORONAL SHOCK ACCELERATION EFFICIENCY VARY WITH TIME AND LOCATION? 3) WHAT REMOTE OBSERVABLES ARE RELEVANT FOR DETERMINATION OF SHOCK ACCELERATION EFFICIENCY? THE PRODUCTS OF THE PROPOSED WORK WILL ENABLE AND FACILITATE FUTURE STUDIES OF CORONAL SHOCK WAVE PROPERTIES AS WELL AS THEIR INFLUENCE ON SEP PRODUCTION AND HELIOSPHERIC CONNECTIVITY. THE CASHEW FRAMEWORK AND ITS RESULTS WILL BE MADE FREELY AVAILABLE ONLINE FOR RESEARCHERS TO USE VIA THE NASA SOLAR DATA ANALYSIS CENTER. THIS PROPOSAL IS RELEVANT TO THE NRC S CURRENT DECADAL SURVEY OF SOLAR AND SPACE PHYSICS AND ITS KEY SCIENCE GOAL 1. DETERMINE THE ORIGINS OF THE SUN'S ACTIVITY AND PREDICT THE VARIATIONS IN THE SPACE ENVIRONMENT . IT WILL ENABLE RESEARCH RELEVANT TO NASA'S STRATEGIC GOAL TO UNDERSTAND THE SUN AND ITS INTERACTIONS WITH THE EARTH AND THE SOLAR SYSTEM AND TO THE FOLLOWING NASA HELIOPHYSICS SCIENCE OBJECTIVES: OPEN THE FRONTIER TO SPACE ENVIRONMENTAL PREDICTION: UNDERSTAND THE FUNDAMENTAL PHYSICAL PROCESSES OF THE SPACE ENVIRONMENT FROM THE SUN TO EARTH AND SAFEGUARD THE JOURNEY OF EXPLORATION: MAXIMIZE THE SAFETY AND PRODUCTIVITY OF HUMAN AND ROBOTIC EXPLORERS BY DEVELOPING THE CAPABILITY TO PREDICT THE EXTREME AND DYNAMIC CONDITIONS IN SPACE. · GrantIndex