THE COOPERATIVE AGREEMENT WOULD FUND THE CONTINUATION OF THE ACTIVITIES OF THE PRINCIPAL INVESTIGATOR IN HIS ROLE AS A CO-INVESTIGATOR OF THE CASSINI CIRS EXPERIMENT AND THE ACTIVITIES OF THE ASSOCIATE TEAM MEMBER OF THE CASSINI RADIO SCIENCE EXPERIMENT. THE PROPOSED WORK ENTAILS THEPLANNING OF CASSINI CIRS AND RADIO-SCIENCE OBSERVATIONS OF THE SATURN SYSTEM AND THE ANALYSIS OF DATA FROM THESE OBSERVATIONS. THE WORK INCLUDES (1) GENERATING CIRSPOINTING DESIGNS OF TITAN OBSERVATIONS MANY OF WHICH ARE ALSO USED BY OTHER OPTICAL REMOTE-SENSING INSTRUMENTS ON THE CASSINI SPACECRAFT; (2) PARTICIPATING IN THE DESIGN OFRADIO OCCULTATION SOUNDINGS OF TITAN AND SATURN AND RETRIEVING VERTICAL PROFILES OF TEMPERATURE AND PRESSURE FROM THESE SOUNDINGS; (3) ANALYSIS OF BOTH THE CIRS AND RADIO-OCCULTATION DATA WITH AN EMPHASIS ON THERMAL STRUCTURE AND ATMOSPHERIC DYNAMICS; (4)CONTRIBUTING TO ARCHIVING OF THIS DATA AND OBSERVATION PLANNING DOCUMENTS IN THE CLOSEOUT PHASE OF THE CASSINI MISSION WHICH BEGINS IN FY2018. BOTH PI AND CO-I ARE BROADLY RECOGNIZED AS EXPERTS ON THERMAL INFRARED AND RADIO-OCCULTATION DATA RESPECTIVELY AND THEIR ANALYSES WILL ADDRESS FUNDAMENTAL QUESTIONS PERTAINING TO THE METEOROLOGY OF TITAN AND SATURN.