A TSI COMMUNITY CONSENSUS COMPOSITE BASED ON AN ASSESSMENT OF THE ACCURACIES AND UNCERTAINTIES OF SPACE-BORNE TSI MEASUREMENTSTOTAL SOLAR IRRADIANCE (TSI) HAS BEEN MEASURED FROM SPACE SINCE 1978 AND PROVIDES THE BEST DATA RECORD OF THE NET ENERGY INPUT POWERING THE EARTHS CLIMATE SYSTEM. SMALL VARIATIONS IN THIS DRIVING ENERGY OVER LONG PERIODS OF TIME CAN CAUSE CLIMATE CHANGES THAT MUST BE DISTINGUISHED FROM ANTHROPOGENIC EFFECTS WHEN UNDERSTANDING THE CAUSES OF CLIMATE CHANGE. OFFSETS AND DRIFTS DUE TO CALIBRATION DIFFERENCES BETWEEN THE DOZEN TSI INSTRUMENTS CONTRIBUTING TO THE CURRENT SOLAR CLIMATE DATA RECORD HAVE MADE THE CREATION OF A SINGLE TSI COMPOSITE DIFFICULT. THERE ARE NO FEWER THAN THREE CURRENT PROMINENT COMPOSITES AVAILABLE FROM DIFFERENT TSI INSTRUMENT PROVIDERS. THESE THREE HAVE DIFFERENT LONG-TERM VARIATIONS LEADING TO DIFFERENT ATTRIBUTIONS OF THE EFFECT OF THE SUN ON EARTHS CLIMATE. WHICH COMPOSITE IS THE CLIMATE RESEARCH COMMUNITY TO USE WHEN THE TSI COMMUNITY HAS NOT COME TO AGREEMENT? THREE YEARS AGO I FORMED AN INTERNATIONAL SPACE STUDIES INSTITUTE (ISSI) TEAM INCLUDING PIS FROM ALL OF THE EXTANT TSI INSTRUMENT TEAMS AS WELL AS EXTERNAL DATA USERS AND MODELERS TO COME TO CONSENSUS ON A SINGLE COMPOSITE FOR THE EXTERNAL COMMUNITY OF DATA USERS. THIS COMPETITIVELY SELECTED ISSI TEAM OF EXPERTS HAS MET THREE TIMES AND HAS AGREED UPON: 1) THE ABSOLUTE VALUE TO USE FOR THECOMPOSITE TSI RECORD AND 2) AN UNBIASED BAYESIAN COMPUTATIONAL METHODOLOGY TO CREATE THIS NEW COMPOSITE. WHILE THIS IS A NECESSARY TECHNICAL ADVANCE THE SOCIAL ACHIEVEMENT OF BRINGING THIS TEAM TOGETHER AND ACQUIRING CONSENSUS ON THE APPROACH IS UNPRECEDENTED IN THIS COMMUNITY AND LENDS PROMISE TO FUTURE DATA RECORD IMPROVEMENTS SUCH AS THOSE PROPOSED HERE. NOW THAT THE APPROACH HAS BEEN AGREED UPON BY THIS ISSI TEAM I PROPOSE THIS 2014 ROSES A.16 EFFORT TO:1. IMPLEMENT THE COMPUTATIONAL METHODOLOGY TO CREATE THIS NEW COMMUNITY CONSENSUS TSI COMPOSITE INCLUDING TIME-DEPENDENT UNCERTAINTIES WITH INVOLVEMENT FROM MY ISSI TEAMS PROMINENT TSI EXPERTS AND CLIMATE USERS2. DISTRIBUTE THE COMPOSITE TO USERS VIA A WEBSITE WITH A PUBLICATION DETAILING THE METHOD 3. ESTABLISH A SYSTEM TO UPDATE THIS TSI COMPOSITE REGULARLY AS NEW DATA ARE AVAILABLE AS THE INSTRUMENT SCIENTIST FOR THE RECENTLY LAUNCHED TSI CALIBRATION TRANSFER EXPERIMENT (TCTE) I WILL OF COURSE BE INCLUDING THOSE NEWLY PUBLICLY AVAILABLE DATA IN THIS COMPOSITE TOO.THE NEW COMPOSITE PROPOSED HERE INCLUDES AN ASSESSMENT OF THE ACCURACIES AND UNCERTAINTIES OF THE INDIVIDUAL TSI MEASUREMENTS CONTRIBUTING TO THE SPACE-BORNE SOLAR IRRADIANCE DATA RECORD BASED ON THE BEST CURRENT KNOWLEDGE FROM THE ISSI TEAM MEMBERS WHO WILL CONTINUE TO BE INVOLVED IN THIS EFFORT AND HELP FINALIZE THE CONSENSUS REACHED THUS FAR. THIS NEW COMPOSITE ALSO PROVIDES SOMETHING LACKING IN ALL EXISTING COMPOSITES NAMELY TIME DEPENDENT UNCERTAINTIES. THESE WILL ALLOW USERS OF THIS SOLAR CLIMATE DATA RECORD TO IDENTIFY TEMPORAL REGIONS WHERE THE DATA ARE BETTER- OR LESS WELL- KNOWN AND THUS HELP QUANTIFY THE ACCURACIES OF RESULTING EFFECTS IN CLIMATE MODELS.SUCH A TSI COMPOSITE WITH TIME-DEPENDENT UNCERTAINTIES BASED ON THE CONSENSUS UNDERSTANDING FROM THE EXPERTS IN THE TSI FIELD IS NEEDED FOR CLIMATE RESEARCHERS ASSESSING SOLAR INFLUENCES ON EARTHS CLIMATE.