OUR RESEARCH OBJECTIVES ARE TO: 1) INTEGRATE LATERAL INFLOWS INTO A SWOT DISCHARGE ALGORITHM; 2) INTEGRATE LAKE/RESERVOIR DYNAMICS INTO A SWOT DISCHARGE ALGORITHM; 3) DEVELOP A SWOT MODELING APPLICATION FOR COMMUNITY SCALE WATER RESOURCES PLANNING/MANAGEMENT AND FLOOD HAZARD/RISK ASSESSMENT; 4) CONTRIBUTE TO OVERALL SWOT MISSION PLANNING AND SCIENTIFIC DEVELOPMENT.WE ADDRESS FOUR NRA HYDROLOGY PRIORITY AREAS: 2.1.1 LAKE PROCESSES 2.1.2 RIVER DISCHARGE 2.1.3 INTEGRATION OF SWOT MEASUREMENTS INTO MODELS 2.1.8 HIGHER LEVEL PRODUCTS.STUDY BASINS INCLUDE: MACKENZIE SACRAMENTO MISSISSIPPI AND AMAZON. THESE BASINS PROVIDE GRADIENTS IN CLIMATE CONDITIONS RANGING FROM SUBARCTIC TO TROPICAL AVAILABILITY OF IN-SITU MEASUREMENTS RANGING FROM DENSE TO SPARE AND REGULATION OF SURFACE AND GROUND WATERS RANGING FROM SIGNIFICANT IN SAC/MISS TO LIMITED IN AMAZON. THESE GRADIENTS PROVIDE A FRAMEWORK FOR ASSESSING OUR ABILITY TOESTIMATE RIVER DISCHARGE ACROSS A RANGE OF TERRESTRIAL SYSTEMS AND THE SACRAMENTO PROVIDES ACCESS TO AIRSWOT MEASUREMENTS.BUILDING ON OUR SWOT EXPERIENCE WE PROPOSE TO DEVELOP NOVEL APPROACHES FOR INTEGRATING LATERAL INFLOWS AND LAKE/RESERVOIR OUTFLOWS INTO AN ESTABLISHED SWOT DISCHARGE ALGORITHM (METROMAN) TO REDUCE SWOT DISCHARGE ERRORS. WE HAVE DEMONSTRATED POTENTIAL REDUCTIONS IN DISCHARGE RMSE BY 20-30% WHEN LATERAL INFLOWS ARE INCLUDING IN METROMAN. WE ALSO BUILD ON OUR LAKE/RESERVOIR STORAGE AND OUTFLOW MODEL WHICH HAS BEEN SHOWN TO SIMULATE BOTH NATURAL AND REGULATED STORAGE DYNAMICS BASED ON CHARACTERISTIC STORAGE PATTERNS DERIVED FROM SYNTHETIC SWOT STORAGE CHANGE TIME SERIES. OUR APPROACH HAS THE POTENTIAL TO SIGNIFICANTLY IMPROVEGLOBAL/REGIONAL HYDROLOGIC STUDIES WHERE REGULATED RESERVOIR DYNAMICS ARE IMPORTANT.AS ENCOURAGED IN THE NRA WE ARE COLLABORATING ON TWO CNES-SWOT ST PROPOSALS: 1) DR. ARRON BOONE'S PROPOSAL ENTITLED "TOWARDS AN IMPROVED UNDERSTANDING OF THE GLOBAL HYDROLOGICAL CYCLE USING SWOT MEASUREMENTS" FROM CENTRE NATIONAL DE RECHERCHE METEOROLOGIQUE. WE WILL USE RUNOFF FROM THEIR ISBA MODEL FOR INPUT TO OUR LATERAL INFLOW MODEL PROVIDE THEM WITH OUR METROMAN DERIVED SWOT RIVER DISCHARGES FOR THEIR ASSIMILATION EFFORTS AND JOINTLY INVESTIGATE THE ROLE OF REGULATION ON RESERVOIR DYNAMICS; AND 2) DR. JEAN-FRANCOIS CRETAUX'S PROPOSAL ENTITLED "DETERMINATION OF RIVER DISCHARGE FROM SWOT" FROM CENTRE NATIONAL D'ETUDESSPATIALES. WE WILL PARTICIPATE IN COMPARISON EXPERIMENTS FOR ASSESSING DISCHARGE ALGORITHM PERFORMANCE IN SELECT TEST BASINS.TO ASSESS POTENTIAL VALUE OF THE SWOT MISSION IN HYDROLOGY APPLICATIONS WE WILL DEVELOP TIME SERIES OF SWOT RIVER DISCHARGES AND LAKE STORAGE CHANGES TO REPRESENT FINITE MISSION DURATIONS. WE WILL THEN USE THESE DATA SERIES TO CALIBRATE A HYDROLOGIC-HYDRAULICMODEL USING TWO APPROACHES: 1) ONLY ADJUSTING ROUTING PARAMETERS IN THE HILLSLOPE RIVER ROUTING (HRR) MODEL WITH RUNOFF FROM NLDAS/GLDAS/ISBA MODELS AND 2) ADJUSTING BOTH RUNOFF GENERATION AND ROUTING PARAMETERS IN THE HRR MODEL. ALTHOUGH THE NLDAS/GLDAS/ISBA MODELS ARE WELL ESTABLISHED AND ACCOUNT FOR MORE PROCESSES THAN THE HYDROLOGIC MODULE IN THE HRR MODEL WE PROPOSE TO USE HRR FOR THIS APPLICATION TO ENABLE AUTOMATED CALIBRATION APPROACHES WHERE BOTH HYDROLOGIC AND HYDRAULIC PARAMETERSPACES ARE EXPLORED IN A FULLY COUPLED SYSTEM. THE CALIBRATED MODELS WILL THEN BE USED TO SIMULATE 1979-CURRENT AND 2000-CURRENT TIME PERIODS. WE WILL COMPARE THE CALIBRATED MODEL RESULTS TO IN-SITU MEASUREMENTS HIGH RESOLUTION MODELS CALIBRATED WITH IN-SITUMEASUREMENTS AND EACH OTHER. WE WILL ALSO WORK WITH FM GLOBAL THE WORLD-WIDE LEADER IN COMMERCIAL AND INDUSTRIAL PROPERTY INSURANCE TO QUANTIFY THE POTENTIAL VALUE ADDED BY THE SWOT MISSION. USING THE PROPOSED APPLICATION WE WILL EXPLORE POTENTIAL IMPROVEMENTS IN ESTIMATED FLOOD DISCHARGES HAZARD MAPS AND CORRESPONDING FLOOD RISK THROUGH UNFUNDED COLLABORATION WITH FMGLOBAL RESEARCH SCIENTISTS.