Not listed EARLY RESULTS OBTAINED FROM THE GPM GMI SENSOR INDICATE A VERY STABLE CALIBRATION WITH SMALL RESIDUAL CALIBRATION-RELATED ERRORS FOLLOWING CORRECTIONS FOR MAGNETIC INDUCED ANOMALIES. THIS SUGGESTS THAT GMI CAN INDEED BE USED AS A CALIBRATION STANDARD FOR THE OTHER RADIOMETERS IN THE GPM CONSTELLATION. FURTHER EVIDENCE OF THE CALIBRATION ROBUSTNESS COMES FROM AN OPTIMAL ESTIMATION RETRIEVAL OF NON-RAINING PARAMETERS DEVELOPED BY THE PIS AND A GRADUATE STUDENT THAT DEMONSTRATE THAT THE ABSOLUTE CALIBRATION OF GMI IS EXTREMELY CONSISTENT WITH CURRENT RADIATIVE TRANSFER KNOWLEDGE. BECAUSE INTERCALIBRATION TECHNIQUES REQUIRE ACCURATE KNOWLEDGE OF THE ATMOSPHERE AND OCEAN SURFACE IN NON-PRECIPITATING CONDITIONS TO ACCOUNT FOR DIFFERENCES IN CHANNELS AND VIEW ANGLES BETWEEN SENSORS THESE HIGH QUALITY RETRIEVALS FROM GPM WILL ALLOW US TO REDUCE THE NOISE AND INCREASE THE SENSITIVITY OF THE INTERCALIBRATION RESULTS. USING THESE NEW RESULTS WE PROPOSE TO ADDRESS SEVERAL ISSUES RELATED TO THE CALIBRATION OF THE CURRENT AND PAST GPM RADIOMETER CONSTELLATION AND HOW IT IMPACTS THE PRECIPITATION PRODUCTS. SPECIFICALLY WE WILL INVESTIGATE THE RELATIONSHIP BETWEEN CALIBRATION BIASES AND RAINFALL BIASES IN THE CURRENT CONSTELLATION TO BETTER UNDERSTAND HOW INDIVIDUAL SENSOR BIASES PROPAGATE THROUGH THE RAINFALL RETRIEVAL ALGORITHM FOR DIFFERENT CONSTELLATION SENSORS. THIS WILL THEN BE EXTENDED TO THE CONSTELLATION OF RADIOMETERS IN ORBIT PRIOR THE LAUNCH OF THE GPM CORE SATELLITE. WE PROPOSE TO WORK WITH THE PPS TO IMPLEMENT PLANS TO EXTEND BOTH THE CALIBRATION AND THE GPROF PRECIPITATION DATA PRODUCTS BACK TO THE LAUNCH OF TRMM IN 1997. FINALLY WE PROPOSE TO EXAMINE ERROR STRUCTURES IN THE LEVEL 2 PRECIPITATION PRODUCTS AND TO DEVELOP A FRAMEWORK FOR REPORTING UNCERTAINTIES IN SUCH A WAY AS TO BE USEFUL FOR BOTH WEATHER AND CLIMATE APPLICATIONS. BECAUSE CLIMATE SCALE UNCERTAINTIES ARE NOT IDENTIFIABLE AT PIXELS SCALES AND HAVE INTRINSIC SPACE/TIME COMPONENTS THIS MIGHT REQUIRE FUNDAMENTALLY NEW FILE STRUCTURES TO PROPERLY REPORT. ($32) 9/15/21 5 EARLY RESULTS OBTAINED FROM THE GPM GMI SENSOR INDICATE A VERY STABLE CALIBRATION WITH SMALL RESIDUAL CALIBRATION-RELATED ERRORS FOLLOWING CORRECTIONS FOR MAGNETIC INDUCED ANOMALIES. THIS SUGGESTS THAT GMI CAN INDEED BE USED AS A CALIBRATION STANDARD FOR THE OTHER RADIOMETERS IN THE GPM CONSTELLATION. FURTHER EVIDENCE OF THE CALIBRATION ROBUSTNESS COMES FROM AN OPTIMAL ESTIMATION RETRIEVAL OF NON-RAINING PARAMETERS, DEVELOPED BY THE PIS AND A GRADUATE STUDENT, THAT DEMONSTRATE THAT THE ABSOLUTE CALIBRATION OF GMI IS EXTREMELY CONSISTENT WITH CURRENT RADIATIVE TRANSFER KNOWLEDGE. BECAUSE INTERCALIBRATION TECHNIQUES REQUIRE ACCURATE KNOWLEDGE OF THE ATMOSPHERE AND OCEAN SURFACE IN NON-PRECIPITATING CONDITIONS TO ACCOUNT FOR DIFFERENCES IN CHANNELS AND VIEW ANGLES BETWEEN SENSORS, THESE HIGH QUALITY RETRIEVALS FROM GPM WILL ALLOW US TO REDUCE THE NOISE AND INCREASE THE SENSITIVITY OF THE INTERCALIBRATION RESULTS. USING THESE NEW RESULTS, WE PROPOSE TO ADDRESS SEVERAL ISSUES RELATED TO THE CALIBRATION OF THE CURRENT AND PAST GPM RADIOMETER CONSTELLATION AND HOW IT IMPACTS THE PRECIPITATION PRODUCTS. SPECIFICALLY, WE WILL INVESTIGATE THE RELATIONSHIP BETWEEN CALIBRATION BIASES AND RAINFALL BIASES IN THE CURRENT CONSTELLATION TO BETTER UNDERSTAND HOW INDIVIDUAL SENSOR BIASES PROPAGATE THROUGH THE RAINFALL RETRIEVAL ALGORITHM FOR DIFFERENT CONSTELLATION SENSORS. THIS WILL THEN BE EXTENDED TO THE CONSTELLATION OF RADIOMETERS IN ORBIT PRIOR THE LAUNCH OF THE GPM CORE SATELLITE. WE PROPOSE TO WORK WITH THE PPS TO IMPLEMENT PLANS TO EXTEND BOTH THE CALIBRATION AND THE GPROF PRECIPITATION DATA PRODUCTS BACK TO THE LAUNCH OF TRMM IN 1997. FINALLY, WE PROPOSE TO EXAMINE ERROR STRUCTURES IN THE LEVEL 2 PRECIPITATION PRODUCTS AND TO DEVELOP A FRAMEWORK FOR REPORTING UNCERTAINTIES IN SUCH A WAY AS TO BE USEFUL FOR BOTH WEATHER AND CLIMATE APPLICATIONS. BECAUSE CLIMATE SCALE UNCERTAINTIES ARE NOT IDENTIFIABLE AT PIXELS SCALES AND HAVE INTRINSIC SPACE/TIME COMPONENTS, THIS MIGHT REQUIRE FUNDAMENTALLY NEW FILE STRUCTURES TO PROPERLY REPORT. Funding Only Action ($32) 9/15/21 Not listed EARLY RESULTS OBTAINED FROM THE GPM GMI SENSOR INDICATE A VERY STABLE CALIBRATION WITH SMALL RESIDUAL CALIBRATION-RELATED ERRORS FOLLOWING CORRECTIONS FOR MAGNETIC INDUCED ANOMALIES. THIS SUGGESTS THAT GMI CAN INDEED BE USED AS A CALIBRATION STANDARD FOR THE OTHER RADIOMETERS IN THE GPM CONSTELLATION. FURTHER EVIDENCE OF THE CALIBRATION ROBUSTNESS COMES FROM AN OPTIMAL ESTIMATION RETRIEVAL OF NON-RAINING PARAMETERS DEVELOPED BY THE PIS AND A GRADUATE STUDENT THAT DEMONSTRATE THAT THE ABSOLUTE CALIBRATION OF GMI IS EXTREMELY CONSISTENT WITH CURRENT RADIATIVE TRANSFER KNOWLEDGE. BECAUSE INTERCALIBRATION TECHNIQUES REQUIRE ACCURATE KNOWLEDGE OF THE ATMOSPHERE AND OCEAN SURFACE IN NON-PRECIPITATING CONDITIONS TO ACCOUNT FOR DIFFERENCES IN CHANNELS AND VIEW ANGLES BETWEEN SENSORS THESE HIGH QUALITY RETRIEVALS FROM GPM WILL ALLOW US TO REDUCE THE NOISE AND INCREASE THE SENSITIVITY OF THE INTERCALIBRATION RESULTS. USING THESE NEW RESULTS WE PROPOSE TO ADDRESS SEVERAL ISSUES RELATED TO THE CALIBRATION OF THE CURRENT AND PAST GPM RADIOMETER CONSTELLATION AND HOW IT IMPACTS THE PRECIPITATION PRODUCTS. SPECIFICALLY WE WILL INVESTIGATE THE RELATIONSHIP BETWEEN CALIBRATION BIASES AND RAINFALL BIASES IN THE CURRENT CONSTELLATION TO BETTER UNDERSTAND HOW INDIVIDUAL SENSOR BIASES PROPAGATE THROUGH THE RAINFALL RETRIEVAL ALGORITHM FOR DIFFERENT CONSTELLATION SENSORS. THIS WILL THEN BE EXTENDED TO THE CONSTELLATION OF RADIOMETERS IN ORBIT PRIOR THE LAUNCH OF THE GPM CORE SATELLITE. WE PROPOSE TO WORK WITH THE PPS TO IMPLEMENT PLANS TO EXTEND BOTH THE CALIBRATION AND THE GPROF PRECIPITATION DATA PRODUCTS BACK TO THE LAUNCH OF TRMM IN 1997. FINALLY WE PROPOSE TO EXAMINE ERROR STRUCTURES IN THE LEVEL 2 PRECIPITATION PRODUCTS AND TO DEVELOP A FRAMEWORK FOR REPORTING UNCERTAINTIES IN SUCH A WAY AS TO BE USEFUL FOR BOTH WEATHER AND CLIMATE APPLICATIONS. BECAUSE CLIMATE SCALE UNCERTAINTIES ARE NOT IDENTIFIABLE AT PIXELS SCALES AND HAVE INTRINSIC SPACE/TIME COMPONENTS THIS MIGHT REQUIRE FUNDAMENTALLY NEW FILE STRUCTURES TO PROPERLY REPORT. $0 3/9/20 4 EARLY RESULTS OBTAINED FROM THE GPM GMI SENSOR INDICATE A VERY STABLE CALIBRATION WITH SMALL RESIDUAL CALIBRATION-RELATED ERRORS FOLLOWING CORRECTIONS FOR MAGNETIC INDUCED ANOMALIES. THIS SUGGESTS THAT GMI CAN INDEED BE USED AS A CALIBRATION STANDARD FOR THE OTHER RADIOMETERS IN THE GPM CONSTELLATION. FURTHER EVIDENCE OF THE CALIBRATION ROBUSTNESS COMES FROM AN OPTIMAL ESTIMATION RETRIEVAL OF NON-RAINING PARAMETERS, DEVELOPED BY THE PIS AND A GRADUATE STUDENT, THAT DEMONSTRATE THAT THE ABSOLUTE CALIBRATION OF GMI IS EXTREMELY CONSISTENT WITH CURRENT RADIATIVE TRANSFER KNOWLEDGE. BECAUSE INTERCALIBRATION TECHNIQUES REQUIRE ACCURATE KNOWLEDGE OF THE ATMOSPHERE AND OCEAN SURFACE IN NON-PRECIPITATING CONDITIONS TO ACCOUNT FOR DIFFERENCES IN CHANNELS AND VIEW ANGLES BETWEEN SENSORS, THESE HIGH QUALITY RETRIEVALS FROM GPM WILL ALLOW US TO REDUCE THE NOISE AND INCREASE THE SENSITIVITY OF THE INTERCALIBRATION RESULTS. USING THESE NEW RESULTS, WE PROPOSE TO ADDRESS SEVERAL ISSUES RELATED TO THE CALIBRATION OF THE CURRENT AND PAST GPM RADIOMETER CONSTELLATION AND HOW IT IMPACTS THE PRECIPITATION PRODUCTS. SPECIFICALLY, WE WILL INVESTIGATE THE RELATIONSHIP BETWEEN CALIBRATION BIASES AND RAINFALL BIASES IN THE CURRENT CONSTELLATION TO BETTER UNDERSTAND HOW INDIVIDUAL SENSOR BIASES PROPAGATE THROUGH THE RAINFALL RETRIEVAL ALGORITHM FOR DIFFERENT CONSTELLATION SENSORS. THIS WILL THEN BE EXTENDED TO THE CONSTELLATION OF RADIOMETERS IN ORBIT PRIOR THE LAUNCH OF THE GPM CORE SATELLITE. WE PROPOSE TO WORK WITH THE PPS TO IMPLEMENT PLANS TO EXTEND BOTH THE CALIBRATION AND THE GPROF PRECIPITATION DATA PRODUCTS BACK TO THE LAUNCH OF TRMM IN 1997. FINALLY, WE PROPOSE TO EXAMINE ERROR STRUCTURES IN THE LEVEL 2 PRECIPITATION PRODUCTS AND TO DEVELOP A FRAMEWORK FOR REPORTING UNCERTAINTIES IN SUCH A WAY AS TO BE USEFUL FOR BOTH WEATHER AND CLIMATE APPLICATIONS. BECAUSE CLIMATE SCALE UNCERTAINTIES ARE NOT IDENTIFIABLE AT PIXELS SCALES AND HAVE INTRINSIC SPACE/TIME COMPONENTS, THIS MIGHT REQUIRE FUNDAMENTALLY NEW FILE STRUCTURES TO PROPERLY REPORT. Other Administrative Action $0 3/9/20 3 EARLY RESULTS OBTAINED FROM THE GPM GMI SENSOR INDICATE A VERY STABLE CALIBRATION WITH SMALL RESIDUAL CALIBRATION-RELATED ERRORS FOLLOWING CORRECTIONS FOR MAGNETIC INDUCED ANOMALIES. THIS SUGGESTS THAT GMI CAN INDEED BE USED AS A CALIBRATION STANDARD FOR THE OTHER RADIOMETERS IN THE GPM CONSTELLATION. FURTHER EVIDENCE OF THE CALIBRATION ROBUSTNESS COMES FROM AN OPTIMAL ESTIMATION RETRIEVAL OF NON-RAINING PARAMETERS, DEVELOPED BY THE PIS AND A GRADUATE STUDENT, THAT DEMONSTRATE THAT THE ABSOLUTE CALIBRATION OF GMI IS EXTREMELY CONSISTENT WITH CURRENT RADIATIVE TRANSFER KNOWLEDGE. BECAUSE INTERCALIBRATION TECHNIQUES REQUIRE ACCURATE KNOWLEDGE OF THE ATMOSPHERE AND OCEAN SURFACE IN NON-PRECIPITATING CONDITIONS TO ACCOUNT FOR DIFFERENCES IN CHANNELS AND VIEW ANGLES BETWEEN SENSORS, THESE HIGH QUALITY RETRIEVALS FROM GPM WILL ALLOW US TO REDUCE THE NOISE AND INCREASE THE SENSITIVITY OF THE INTERCALIBRATION RESULTS. USING THESE NEW RESULTS, WE PROPOSE TO ADDRESS SEVERAL ISSUES RELATED TO THE CALIBRATION OF THE CURRENT AND PAST GPM RADIOMETER CONSTELLATION AND HOW IT IMPACTS THE PRECIPITATION PRODUCTS. SPECIFICALLY, WE WILL INVESTIGATE THE RELATIONSHIP BETWEEN CALIBRATION BIASES AND RAINFALL BIASES IN THE CURRENT CONSTELLATION TO BETTER UNDERSTAND HOW INDIVIDUAL SENSOR BIASES PROPAGATE THROUGH THE RAINFALL RETRIEVAL ALGORITHM FOR DIFFERENT CONSTELLATION SENSORS. THIS WILL THEN BE EXTENDED TO THE CONSTELLATION OF RADIOMETERS IN ORBIT PRIOR THE LAUNCH OF THE GPM CORE SATELLITE. WE PROPOSE TO WORK WITH THE PPS TO IMPLEMENT PLANS TO EXTEND BOTH THE CALIBRATION AND THE GPROF PRECIPITATION DATA PRODUCTS BACK TO THE LAUNCH OF TRMM IN 1997. FINALLY, WE PROPOSE TO EXAMINE ERROR STRUCTURES IN THE LEVEL 2 PRECIPITATION PRODUCTS AND TO DEVELOP A FRAMEWORK FOR REPORTING UNCERTAINTIES IN SUCH A WAY AS TO BE USEFUL FOR BOTH WEATHER AND CLIMATE APPLICATIONS. BECAUSE CLIMATE SCALE UNCERTAINTIES ARE NOT IDENTIFIABLE AT PIXELS SCALES AND HAVE INTRINSIC SPACE/TIME COMPONENTS, THIS MIGHT REQUIRE FUNDAMENTALLY NEW FILE STRUCTURES TO PROPERLY REPORT. Funding Only Action $70.0k 2/14/19