Investigation of modern methods of probalistic sensitivity analysis of final respository performance assessment modles (MOSEL)

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Hauptverfasser: Spießl, Sabine Maria 1969- (VerfasserIn), Becker, Dirk-Alexander 1963- (VerfasserIn)
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Sprache:German
Veröffentlicht: Köln ; Garching b. München ; Berlin ; Braunschweig GRS June 2017
Schriftenreihe:GRS 412
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Datensatz im Suchindex

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adam_text TABLE OF CONTENTS 1 INTRODUCTION ........................................................................................................ 1 1.1 BACKGROUND ......................................................................................................... 1 1.2 MANAGEMENT OF UNCERTAINTIES ............................................................................. 1 1.2.1 IDENTIFICATION AND QUANTIFICATION OF INHERENT UNCERTAINTIES ...............................2 1.2.2 UNCERTAINTY AND SENSITIVITY ANALYSIS .................................................................. 3 1.2.3 TIME-DEPENDENT VERSUS MAXIMUM ANALYSIS .....................................................4 1.2.4 ASSESSMENT OF UNCERTAINTIES AND DRAWING CONSEQUENCES ............................. 4 1.3 SENSITIVITY ANALYSIS AND ITS ROLE IN THE SAFETY CASE ........................................... 5 2 OVERVIEW OF METHODS FOR SENSITIVITY ANALYSIS ............................................ 9 2.1 BASIC TERMS AND NOTATIONS .................................................................................. 9 2.2 MONTE-CARLO (MC) METHODS .............................................................................. 9 2.3 SAMPLING ........................................................................................................... 11 2.3.1 RANDOM SAMPLING ............................................................................................. 11 2.3.2 STRATIFIED SAMPLING ............................................................................................ 11 2.3.3 QUASI-RANDOM (LOW-DISCREPANCY) SAMPLING ................................................... 13 2.3.4 PERIODIC SAMPLING ............................................................................................. 14 2.3.5 CORRELATION ......................................................................................................... 15 2.3.6 COMPARISON OF SAMPLING METHODS ................................................................... 16 2.4 UNCERTAINTY ANALYSIS .......................................................................................... 19 2.4.1 GRAPHICAL UNCERTAINTY ANALYSIS ........................................................................ 19 2.4.2 NUMERICAL UNCERTAINTY ANALYSIS ....................................................................... 21 2.5 GRAPHICAL METHODS FOR SENSITIVITY ANALYSIS ..................................................... 23 2.5.1 SCATTERPLOTS ........................................................................................................ 23 2.5.2 CONTRIBUTION TO THE SAMPLE MEAN (CSM) ....................................................... 23 2.5.3 CONTRIBUTION TO THE SAMPLE VARIANCE (CSV) ................................................... 24 2.5.4 CUMULATED SUMS OF NORMALISED RE-ORDERED OUTPUT (CUSUNORO) ............ 24 2.5.5 CONDITIONAL COBWEB PLOTS AND MEAN RANK PLOTS ............................................ 25 2.6 CORRELATION- AND REGRESSION-BASED METHODS .................................................. 26 I 2.6.1 PEARSON * S CORRELATION COEFFICIENTS ................................................................... 26 2.6.2 STANDARDISED REGRESSION COEFFICIENTS (SRC) .................................................. 27 2.6.3 PARTIAL CORRELATION COEFFICIENTS (PCC) .............................................................. 28 2.6.4 RANK TRANSFORMATION .......................................................................................... 29 2.7 VARIANCE-BASED METHODS .................................................................................. 30 2.7.1 THE SOBOL * METHOD .............................................................................................32 2.7.2 (EXTENDED) FOURIER AMPLITUDE SENSITIVITY TEST (FAST/EFAST) ................... 32 2.7.3 RANDOM BALANCE DESIGN (RBD) ...................................................................... 33 2.7.4 EFFECTIVE ALGORITHM FOR COMPUTING GLOBAL SENSITIVITY INDICES (EASI) ............. 34 2.7.5 METAMODELLING AND STATE-DEPENDENT PARAMETER METHOD (SDP) ................ 34 2.8 NON-PARAMETRIC METHODS .................................................................................. 35 2.8.1 TWO-SAMPLE TESTS ............................................................................................... 36 3 DESCRIPTION OF THE TEST SYSTEMS ................................................................... 37 3.1 REPOSITORY FOR SPENT FUEL AND HLW IN CLAY .................................................... 37 3.2 REPOSITORY FOR LILW IN ROCK SALT ....................................................................... 38 3.3 REPOSITORY FOR SPENT FUEL AND HLW IN ROCK SALT (SAM-GBS) ..................... 41 4 GRAPHICAL SENSITIVITY ANALYSIS ....................................................................... 45 4.1 SCATTERPLOTS ......................................................................................................... 45 4.1.1 SCATTERPLOTS FOR THE CLAY SYSTEM ...................................................................... 45 4.1.2 SCATTERPLOTS FOR THE LILW SYSTEM ...................................................................... 47 4.2 CSM, CUSUNORO AND CSV PLOTS ................................................................. 50 4.2.1 CSM PLOTS FOR THE CLAY SYSTEM .......................................................................... 50 4.2.2 CSM PLOTS FOR THE LILW SYSTEM ........................................................................ 52 4.2.3 CSM VERSUS CUSUNORO ............................................................................... 54 4.2.4 CSV PLOTS ........................................................................................................... 55 4.3 SUMMARY .............................................................................................................. 56 5 CORRELATION- AND REGRESSION-BASED SENSITIVITY ANALYSIS ........................ 59 5.1 COMPARISON OF CORRELATION AND REGRESSION ..................................................... 59 5.2 THE PRINCIPLE MESSAGE ...................................................................................... 60 5.3 DIRECT EVALUATION OF THE MODEL OUTPUT (SRC) ................................................. 61 5.3.1 THE CLAY SYSTEM ................................................................................................ 61 5.3.2 THE LILW SYSTEM .............................................................................................. 61 5.4 RANK-BASED EVALUATION (SRRC) ...................................................................... 62 5.4.1 THE CLAY SYSTEM ................................................................................................. 62 5.4.2 THE LILW SYSTEM .............................................................................................. 63 5.5 SUMMARY ........................................................................................................... 64 6 VARIANCE-BASED SENSITIVITY ANALYSIS ........................................................... 65 6.1 SOBOL * METHOD ................................................................................................... 66 6.1.1 THE CLAY SYSTEM ................................................................................................ 66 6.1.2 THE LILW SYSTEM .............................................................................................. 67 6.2 EFAST ................................................................................................................ 69 6.2.1 THE CLAY SYSTEM ................................................................................................ 69 6.2.2 THE LILW SYSTEM .............................................................................................. 70 6.3 RBD .................................................................................................................... 71 6.3.1 THE CLAY SYSTEM ................................................................................................72 6.3.2 THE LILW SYSTEM .............................................................................................. 72 6.4 EASI ................................................................................................................... 73 6.4.1 THE CLAY SYSTEM ................................................................................................ 73 6.4.2 THE LILW SYSTEM .............................................................................................. 74 6.5 SDP .................................................................................................................... 75 6.5.1 THE CLAY SYSTEM ................................................................................................ 75 6.5.2 THE LILW SYSTEM .............................................................................................. 75 6.6 COMPARISON WITH REGRESSION-BASED SENSITIVITY ANALYSIS ............................... 76 6.7 SUMMARY ........................................................................................................... 78 7 INFLUENCE OF THE SAMPLING SCHEME .............................................................. 81 7.1 RANDOM SAMPLING VERSUS LATIN HYPERCUBE SAMPLING ................................. 81 7.2 RANDOM SAMPLING VERSUS QUASI-RANDOM LPTAU SAMPLING ...........................83 7.3 SUMMARY ........................................................................................................... 84 III 8 DETAILED SENSITIVITY INVESTIGATIONS ............................................................... 85 8.1 INFLUENCE OF NUMBER OF PARAMETERS .................................................................. 85 8.2 HIDDEN SENSITIVITIES ............................................................................................ 88 8.3 HANDLING OF TWO-SPLIT OUTPUT BY A DYNAMIC TWO SAMPLE TEST ......................... 91 8.4 SUMMARY ............................................................................................................. 93 9 OUTPUT TRANSFORMATION .................................................................................... 95 9.1 DEFINITION OF TRANSFORMATIONS ............................................................................. 96 9.2 SELECTION OF THE THRESHOLD ................................................................................. 98 9.3 SENSITIVITY ANALYSIS RESULTS ................................................................................ 99 9.3.1 THE SAM-GBS MODEL ....................................................................................... 99 9.3.2 THE LILW MODEL .............................................................................................. 102 9.4 SUMMARY ...........................................................................................................105 10 HANDLING OF PARAMETER DEPENDENCIES ....................................................... 107 11 SUMMARY, RECOMMENDATIONS AND OUTLOOK ............................................... 109 11.1 PROJECT SUMMARY AND GENERAL CONCLUSIONS ...................................................109 11.1.1 BACKGROUND AND PROJECT SETUP .......................................................................109 11.1.2 GRAPHICAL SENSITIVITY ANALYSIS .........................................................................110 11.1.3 CORRELATION- AND REGRESSION-BASED SENSITIVITY ANALYSIS ............................... 111 11.1.4 VARIANCE-BASED SENSITIVITY ANALYSIS .............................................................. 111 11.1.5 THE ROLE OF THE SAMPLING SCHEME .................................................................. 112 11.1.6 DEPENDANCE ON THE SET OF PARAMETERS ......................................................... 113 11.1.7 TWO-SAMPLE TESTS .............................................................................................113 11.1.8 OUTPUT TRANSFORMATION ..................................................................................... 114 11.2 RECOMMENDATION FOR PROCEEDING IN PRACTICAL CASES .................................... 115 11.3 RELATED WORK AND OUTLOOK ...............................................................................120 LIST OF REFERENCES ............................................................................................................... 123 LIST OF FIGURES ...................................................................................................................... 129 LIST OF TABLES ......................................................................................................................... 133 IV A DATA OF THE TEST SYSTEMS ............................................................................. 135 A.1 REPOSITORY FOR SPENT FUEL AND HLW IN CLAY ................................................ 135 A.2 REPOSITORY FOR LOW- AND INTERMEDIATE-LEVEL WASTE (LILW) IN ROCK SALT... 140 V
any_adam_object 1
author Spießl, Sabine Maria 1969-
Becker, Dirk-Alexander 1963-
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author_facet Spießl, Sabine Maria 1969-
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spellingShingle Spießl, Sabine Maria 1969-
Becker, Dirk-Alexander 1963-
Investigation of modern methods of probalistic sensitivity analysis of final respository performance assessment modles (MOSEL)
GRS
subject_GND (DE-588)4155043-2
title Investigation of modern methods of probalistic sensitivity analysis of final respository performance assessment modles (MOSEL)
title_auth Investigation of modern methods of probalistic sensitivity analysis of final respository performance assessment modles (MOSEL)
title_exact_search Investigation of modern methods of probalistic sensitivity analysis of final respository performance assessment modles (MOSEL)
title_full Investigation of modern methods of probalistic sensitivity analysis of final respository performance assessment modles (MOSEL) Sabine Spiessl, Dirk-Alexander Becker
title_fullStr Investigation of modern methods of probalistic sensitivity analysis of final respository performance assessment modles (MOSEL) Sabine Spiessl, Dirk-Alexander Becker
title_full_unstemmed Investigation of modern methods of probalistic sensitivity analysis of final respository performance assessment modles (MOSEL) Sabine Spiessl, Dirk-Alexander Becker
title_short Investigation of modern methods of probalistic sensitivity analysis of final respository performance assessment modles (MOSEL)
title_sort investigation of modern methods of probalistic sensitivity analysis of final respository performance assessment modles mosel
topic_facet Forschungsbericht
url http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=029867254&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
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