THE ORIGIN OF THE SLOW SOLAR WIND IS CONTROVERSIAL; HOWEVER THE BOUNDARIES OF CORONAL HOLES CLEARLY PLAY AN IMPORTANT ROLE. ONE GROUP OF THEORIES ARGUES THAT THE SLOW WIND PRIMARILY ARISES QUASI-STATICALLY FROM THE LARGE MAGNETIC EXPANSION FACTOR IN THESE REGIONS WHILE ANOTHER SET OF THEORIES CONTENDS THAT A SIGNIFICANT PORTION OF THE SLOW SOLAR WIND ARISES DYNAMICALLY VIA THE RECONNECTION OF OPEN AND CLOSED FIELDS IN THE CORONA. RECONNECTION BETWEEN OPEN AND CLOSED FIELDS IS CLOSELY RELATED TO CORONAL HOLE EVOLUTION - THESE EVENTS ALTER THE BOUNDARIES AND CHANGE THE AREA OF CORONAL HOLES. WE PROPOSE TO INVESTIGATE THE EVOLUTION OF CORONAL HOLES AND THEIR RELATIONSHIP TO THE ORIGIN OF THE SLOW SOLAR WIND. OUR WORK COMBINES THE ADAPT FLUX TRANSPORT MODEL THE MAS MHD SIMULATION CODE EUV IMAGING (STEREO EUVI AND SDO AIA) AND IN SITU COMPOSITION AND CHARGE STATE MEASUREMENTS FROM ACE. SPECIFICALLY WE PLAN TO DRIVE TIME-DEPENDENT MHD SOLUTIONS OF THE MAS CODE FOR EXTENDED TIME PERIODS (2-3 CARRINGTON ROTATIONS) USING FULL SUN MAPS GENERATED BY ADAPT (INGESTING SDO/HMI MAGNETOGRAMS). THE MODELED CORONAL HOLE EVOLUTION WILL BE QUANTITATIVELY COMPARED WITH CORONAL HOLE CHANGES OBSERVED BY STEREO EUVI AND SDO AIA. WE WILL IDENTIFY THE TOPOLOGICAL CHANGES ASSOCIATED WITH THIS EVOLUTION AND DETERMINE WHAT PORTION OF THE HELIOSPHERIC MAGNETIC FLUX IS DUE TO INTERCHANGE RECONNECTION. THIS WILL ALLOW US TO ASSESS WHAT THE RELATIVE CONTRIBUTION OF RECONNECTED FLUX IS TO THE SLOW SOLAR WIND. ONE OF THE COMPELLING ARGUMENTS FOR A DYNAMIC ORIGIN OF THE SLOW WIND IS THE DIFFERENCES IN CHARGE STATES AND COMPOSITION BETWEEN FAST AND SLOW WIND. IF THIS ARGUMENT IS CORRECT THERE SHOULD BE A CAUSAL LINK BETWEEN CORONAL HOLE EVOLUTION IONIC COMPOSITION AND CHARGE-STATE DISTRIBUTION IN THE SOLAR WIND. WE WILL TEST THIS PREDICTION USING MEASUREMENTS FROM THE ACE SPACECRAFT. OUR PROPOSED WORK COMBINES THEORY NUMERICAL SIMULATIONS AND DATA FROM NASA HELIOPHYSICS MISSIONS TO INVESTIGATE A FUNDAMENTAL QUESTION: WHAT IS THE ORIGIN OF THE SLOW SOLAR WIND? AS SUCH OUR WORK ADDRESSES THREE OF THE FOUR HIGH-LEVEL SCIENCE GOALS OF THE HELIOPHYSICS DECADAL SURVEY: (1) DETERMINE THE ORIGINS OF THE SUN'S ACTIVITY AND PREDICT THE VARIATIONS IN THE SPACE ENVIRONMENT; (3) DETERMINE THE INTERACTION OF THE SUN WITH THE SOLAR SYSTEM AND THE INTERSTELLAR MEDIUM; AND (4) DISCOVER AND CHARACTERIZE FUNDAMENTAL PROCESSES THAT OCCUR BOTH WITHIN THE HELIOSPHERE AND THROUGHOUT THE UNIVERSE.