THIS PROPOSAL AIMS TO CONSTRAIN THE PARAMETERS OF NANOFLARE HEATING IN QUIESCENT (NONFLARING) ACTIVE REGIONS. THE CORONAL HEATING PROBLEM HAS PERSISTED FOR DECADES BUT THERE HAS BEEN INCREASING EVIDENCE RECENTLY TO SUGGEST THAT SMALL-SCALE HEATING EVENTS (NANOFLARES AS OPPOSED TO WAVE HEATING) ARE RESPONSIBLE AT LEAST IN ACTIVE REGIONS. THE KEY GOAL OF THIS STUDY IS TO NUMERICALLY QUANTIFY THE ENERGY DISTRIBUTION AND OCCURRENCE RATE OF THESE NANOFLARES WITHIN ACTIVE REGIONS AND COMPARE THEM WITH THE COOLING TIMESCALES AND POWER SPECTRA FROM OBSERVATIONS. THE SCIENCE QUESTION WOULD BE ANSWERED USING A COMBINATION OF NUMERICAL MODELING (EBTEL AND HYDRAD) AND OBSERVATIONS FROM SDO/AIA. THE FIRST STEP IS TO COMPUTE FOURIER POWER SPECTRA ACROSS ACTIVE REGIONS (IN EACH AIA CHANNEL) TO DETERMINE IF NANOFLARE HEATING IS PLAUSIBLE. SECONDLY THESE POWER-LAW DISTRIBUTIONS AND TIME-LAG MAPS OF EMISSION BETWEEN DIFFERENT AIA CHANNELS WOULD BE COMPARED WITH SIMULATED DATA GENERATED USING EBTEL AND HYDRAD TO CONSTRAIN THE ENERGY DISTRIBUTION AND OCCURRENCE RATE OF THE NANOFLARE HEATING. THIS SHALL BE REPEATED FOR DIFFERENT ACTIVE REGIONS TO DETERMINE WHETHER THE NANOFLARE ENERGY DISTRIBUTIONS DEPEND ON THE PROPERTIES OF A GIVEN ACTIVE REGION. THE SCIENCE OBJECTIVE OF CONSTRAINING THE PARAMETERS OF NANOFLARE DISTRIBUTIONS IS COMPELLING DUE TO THE LONG-STANDING NATURE OF THE CORONAL HEATING PROBLEM. THE METHODOLOGY OUTLINED IN THIS PROPOSAL APPEARS TO BE ENTIRELY FEASIBLE.