SCIENCE GOALS AND OBJECTIVES: THE OBJECTIVE OF THIS INVESTIGATION IS TO REVEAL THE CONFIGURATION AND PROPERTIES OF SMALL-SCALE MAGNETIC FLUX ROPES IN THE SOLAR WIND I.E. THOSE OF DURATION RANGING FROM A FEW MINUTES TO HOURS IN ORDER TO RELATE TO OTHER RELEVANT PROCESSES. THE GOAL IS TO ADVANCE OUR KNOWLEDGE OF THE ORIGINATION OF THESE STRUCTURES AND THEIR IMPACT ON FUNDAMENTAL SPACE PLASMA PROCESSES INVOLVING PARTICLE ENERGIZATION AND INTERMITTENT STRUCTURES IN THE SOLAR WIND. MORE SPECIFICALLY WE AIM TO ADDRESS THE FOLLOWING QUESTIONS REGARDING THE PROPERTIES AND ORIGINATION OF THE SMALL-SCALE MAGNETIC FLUX ROPES IN THE SOLAR WIND: 1) HOW UBIQUITOUS THEY ARE 2) HOW THEY ARE RELATED TO OTHER COHERENT STRUCTURES SUCH AS INTERPLANETARY SHOCK WAVES AND THE CURRENT-SHEET TYPE DISCONTINUITIES AND 3) HOW IMPORTANT THEY ARE TO THE SOLAR WIND INTERMITTENCY AND PARTICLE ENERGIZATION PROCESSES. LISTING OF MISSION DATA TO BE USED: ACE WIND STEREO ULYSSES CLUSTER THEMIS HELIOS DSCOVR MMS PSP AND SOLAR ORBITER LISTING OF DATA ANALYSIS METHODOLOGY AND MODELS OR SIMULATIONS: WE WILL EMPLOY TIME-SERIES ANALYSIS TOOLS INCLUDING SUPERPOSED EPOCH ANALYSIS ETC. IN PARTICULAR WE WILL USE THE GRAD-SHAFRANOV (GS) RECONSTRUCTION TECHNIQUE FOR AUTOMATED DETECTION OF SMALL-SCALE MAGNETIC FLUX ROPES FROM IN-SITU SPACECRAFT DATA AND SUBSEQUENT RECONSTRUCTION OF THE CROSS SECTIONS OF IDENTIFIED STRUCTURES. EXTENDED GS-TYPE RECONSTRUCTIONS WILL ALSO BE APPLIED WHEN TAKING INTO ACCOUNT TEMPORAL AND DYNAMIC EVOLUTIONS. VARIOUS GEOMETRICAL AND PHYSICAL PROPERTIES WILL BE DERIVED AND QUANTIFIED. CORRELATIVE AND STATISTICAL STUDIES WILL BE PERFORMED TO CORRELATE WITH OTHER CLOSELY RELATED STRUCTURES AND OTHER OBSERVABLES FOR EXAMPLE THE OCCURRENCE AND ASSOCIATION WITH CURRENT-SHEET TYPE DISCONTINUITIES THE INTERPLANETARY SHOCKS AND ASSOCIATED ENERGETIC PARTICLE SIGNATURES. RECENTLY DEVELOPED STATISTICAL TRANSPORT THEORIES FOR ENERGETIC PARTICLE ACCELERATION IN RESPONSE TO SMALL-SCALE FLUX ROPE DYNAMICS WILL BE APPLIED TO CONNECT WITH THE ENERGETIC PARTICLE OBSERVATIONS. RELEVANCE: THE INVESTIGATION UTILIZES PRIMARILY THE IN-SITU SPACECRAFT MEASUREMENTS OF BOTH MAGNETIC FIELD AND PLASMA PARAMETERS ENERGETIC PARTICLES INCLUDING SUPRATHERMAL ELECTRONS AND ELEMENTAL COMPOSITIONS IF AVAILABLE. THEREFORE IT ADDRESSES THE MISSION GOALS OF STUDYING THE STRUCTURES AND DYNAMIC PROCESSES AND ORIGIN OF SOLAR WIND PLASMAS. IN ADDITION IT HAS DIRECT RELEVANCE TO TWO OF THE HIGHLEVEL DECADAL SURVEY GOALS: DETERMINE THE ORIGINS OF THE SUN S ACTIVITY AND PREDICT THE VARIATIONS IN THE SPACE ENVIRONMENT AND DISCOVER AND CHARACTERIZE FUNDAMENTAL PROCESSES THAT OCCUR BOTH WITHIN THE HELIOSPHERE AND THROUGHOUT THE UNIVERSE.