Numerical studies of tropical convection:
Gespeichert in:
| 1. Verfasser: | |
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| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
2013
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| Schlagworte: | |
| Online-Zugang: | kostenfrei http://d-nb.info/104650312X/34 kostenfrei Inhaltsverzeichnis |
| Beschreibung: | X, 132 S. Ill., graph. Darst. |
| Format: | Langzeitarchivierung gewährleistet, LZA |
Internformat
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Datensatz im Suchindex
| _version_ | 1804151889206444032 |
|---|---|
| adam_text | CONTENTS
ABSTRACT VIII
1 INTRODUCTION 1
1.1 OVERVIEW 1
1.2 BASIC CONCEPTS 2
1.3 THUNDERSTORM TYPES 4
1.3.1 ORDINARY SINGLE CELL 4
1.3.2 MULTICELL 6
1.3.3 SQUALL LINE 6
1.3.4 SUPERCELL 7
1.4 THUNDERSTORM DYNAMICS 7
1.5 PREDICT 11
1.6 VORTICAL CONVECTIVE CLOUDS 12
1.7 THE EFFECTS OF DRY AIR ALOFT 13
1.8 STORM GROWTH IN SHEAR 15
1.8.1 STORM GROWTH IN VERTICAL SHEAR 15
1.8.2 STORM GROWTH WITH AMBIENT VERTICAL VORTICITY 16
1.8.3 CONVECTIVE ENVIRONMENTS IN TROPICAL CYCLONES 16
1.8.4 HODOGRAPH TURNING WITH HEIGHT 17
1.9 THE HOGSETT AND STEWART CONJECTURE 17
1.10 MOTIVATION 18
1.11 THESIS STRUCTURE 19
2 THE NUMERICAL MODEL 21
2.1 BRYAN CLOUD MODEL (CM1) 21
2.1.1 THE GOVERNING EQUATIONS 22
2.1.2 NUMERICS 24
2.1.3 MICROPHYSICS 25
2.1.4 INITIAL THERMAL PERTURBATION 25
3 EVOLUTION OF CONTROL EXPERIMENT 27
3.1 MODEL CONFIGURATION 27
3.1.1 INITIATION OF CONVECTION 27
HTTP://D-NB.INFO/1048296288
VI CONTENTS
3.1.2 REPRESENTATION OF VERTICAL VORTICITY 28
3.2 THERMODYNAMIC SOUNDING 28
3.3 CONTROL EXPERIMENT EVOLUTION 30
3.3.1 EARLY DEVELOPMENT 30
3.3.2 MATURE PHASE 32
3.3.3 DECAY PHASE 34
3.3.4 MAXIMUM VALUES 35
3.4 SUMMARY 36
4 EFFECTS OF DRY AIR ALOFT AND SENSITIVITY TO INITIAL BUBBLE STRENGTH 39
4.1 INTRODUCTION 39
4.2 NUMERICAL EXPERIMENTS 40
4.2.1 EXPERIMENTS WITH IDEALISED SOUNDINGS 40
4.2.2 EXPERIMENTS WITH OBSERVED SOUNDINGS 40
4.3 RESULTS 42
4.3.1 CONVECTIVE CELL EVOLUTION 42
4.3.2 THE EFFECTS OF DRY AIR ALOFT 45
4.3.3 THE AMPLIFICATION OF AMBIENT VERTICAL VORTICITY 50
4.3.4 SENSITIVITY TO INITIAL BUBBLE STRENGTH 52
4.3.5 RELEVANCE TO TROPICAL CYCLOGENESIS 54
4.4 CONCLUSIONS 55
5 EFFECTS OF AMBIENT VERTICAL AND HORIZONTAL VORTICITY 57
5.1 INTRODUCTION 57
5.2 EXPERIMENTAL SETUP 58
5.2.1 MODEL CONFIGURATION 58
5.2.2 THE NUMERICAL EXPERIMENTS 58
5.2.3 BACKGROUND WIND PROFILES 59
5.2.4 THERMODYNAMIC SOUNDINGS 60
5.2.5 INITIATION OF CONVECTION 62
5.3 UNI-DIRECTIONAL VERTICAL SHEAR WITH AND WITHOUT BOUNDARY-LAYER WIND
.... 62
5.4 STORM SPLITTING IN A PURE VERTICALLY-SHEARED ENVIRONMENT 68
5.5 STORM SPLITTING IN A PURE HORIZONTALLY-SHEARED ENVIRONMENT 70
5.6 COMBINED HORIZONTAL AND VERTICAL SHEAR 71
5.6.1 VERTICAL VELOCITY 71
5.6.2 RELATIVE VORTICITY 72
5.7 UPDRAUGHT SPLITTING IN COMBINED HORIZONTAL AND VERTICAL SHEAR 78
5.8 CONCLUSIONS 82
6 EFFECTS OF A VORTEX BOUNDARY-LAYER WIND PROFILE ON DEEP CONVECTION 85
6.1 INTRODUCTION 85
6.2 EXPERIMENTAL SETUP 86
6.2.1 MODEL CONFIGURATION 86
INHALTSVERZEICHNIS VII
6.2.2 THE NUMERICAL EXPERIMENTS 86
6.2.3 BACKGROUND WIND PROFILES 86
6.2.4 REPRESENTATION OF VERTICAL VORTICITY 88
6.2.5 THERMODYNAMIC SOUNDING 89
6.2.6 INITIATION OF CONVECTION 89
6.2.7 THE EXPERIMENTS IN BRIEF 90
6.3 CONTROL EXPERIMENT 92
6.3.1 VERTICAL VELOCITY 92
6.3.2 VERTICAL VORTICITY 92
6.4 NEGATIVE VERTICAL SHEAR ABOVE THE BOUNDARY LAYER 102
6.5 STRONGER AND WEAKER BACKGROUND FLOW 103
6.6 EFFECTS OF BACKGROUND ROTATION 106
6.7 TROPICAL CYCLONE BOUNDARY LAYER 108
6.8 STORM SPLITTING ILL
6.9 CONCLUSIONS 112
7 CONCLUSIONS AND DISCUSSION 115
7.1 CONCLUSIONS 115
7.2 DISCUSSION AND FUTURE WORK 119
BIBLIOGRAPHY 121
DANKSAGUNG 128
CURRICULUM VITAE
131
VIII ABSTRACT
|
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| indexdate | 2024-07-10T01:01:59Z |
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| language | English |
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| spelling | Kilroy, Gerard Verfasser aut Numerical studies of tropical convection Gerard Kilroy 2013 X, 132 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier München, Univ., Diss., 2013 Langzeitarchivierung gewährleistet, LZA Mit einer Zssfassung in dt. Sprache (DE-588)4113937-9 Hochschulschrift gnd-content Erscheint auch als Online-Ausgabe urn:nbn:de:bvb:19-164143 https://nbn-resolving.org/urn:nbn:de:bvb:19-164143 Resolving-System kostenfrei Volltext http://d-nb.info/104650312X/34 Langzeitarchivierung Nationalbibliothek http://edoc.ub.uni-muenchen.de/16414/ Verlag kostenfrei DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027097794&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Kilroy, Gerard Numerical studies of tropical convection |
| subject_GND | (DE-588)4113937-9 |
| title | Numerical studies of tropical convection |
| title_auth | Numerical studies of tropical convection |
| title_exact_search | Numerical studies of tropical convection |
| title_full | Numerical studies of tropical convection Gerard Kilroy |
| title_fullStr | Numerical studies of tropical convection Gerard Kilroy |
| title_full_unstemmed | Numerical studies of tropical convection Gerard Kilroy |
| title_short | Numerical studies of tropical convection |
| title_sort | numerical studies of tropical convection |
| topic_facet | Hochschulschrift |
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