The representation of cloud cover in atmospheric general circulation models:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
2000
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| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | München, Univ., Fak. für Physik, Diss., 2001 |
| Beschreibung: | V, 193 S. Ill., graph. Darst. |
Internformat
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Datensatz im Suchindex
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CONTENTS
ABSTRACT III
ZUSAMMENFASSUNG IV
1 INTRODUCTION 1
1.1 MOTIVATION. 1
1.2 OUTLINE. 5
2 CLOUDS IN LARGE-SCALE MODELS 9
2.1 CLOUDS IN THE CLIMATE SYSTEM. 9
2.1.1 THE GLOBAL DISTRIBUTION OF CLOUDS . 9
2.1.2 THE EFFECTS OF CLOUDS IN THE CLIMATE SYSTEM. 12
2.2 CLOUDS AND PARAMETRIZATION. 18
2.3 A BRIEF HISTORY OF CLOUD PARAMETRIZATION . 22
3 CLOUD PARAMETRIZATION IN THE ECMWF MODEL 31
3.1 THE ECMWF MODEL. 31
3.2 THE CLOUD PARAMETRIZATION SCHEME. 33
3.3 THE CLOUD PARAMETRIZATION IN DATA ASSIMILATION. 42
4 CLOUD FRACTION IN THE ECMWF REANALYSIS 49
4.1 INTRODUCTION. 49
4.2 DATA. 50
4.2.1 ISCCP. 50
4.2.2 ERA . 51
4.3 RESULTS. 51
4.3.1 GLOBAL MEAN. 51
4.3.2 ZONAL MEANS. 52
4.3.3 SELECTED AREAS. 54
4.4 SUMMARY AND DISCUSSION. 60
5 THE PARAMETRIZATION OF CLOUD GENERATION 63
5.1 INTRODUCTION. 63
5.2 THE GENERATION OF CONVECTIVE CLOUDS. 63
5.2.1 THE MASS-FLUX CONCEPT. 65
5.2.2 CLOUD CONDENSATE. 68
5.2.3 CLOUD FRACTION. 71
5.3 THE GENERATION OF NON-CONVECTIVE CLOUDS . 73
I
BIBLIOGRAFISCHE INFORMATIONEN
HTTP://D-NB.INFO/961270748
5.3.1 GENERAL REMARKS . 74
5.3.2 DERIVATION OF STRATIFORM CLOUD SOURCE TERMS. 76
5.3.3 COMPARISON TO THE T93 CLOUD SCHEME. 80
5.3.4 COMPARISON WITH THE DISTRIBUTION APPROACH. 84
5.3.5 SOME THOUGHTS ON CLOUD DECAY. 88
6 CLOUD FRACTION AND MICROPHYSICS 91
6.1 INTRODUCTION. 91
6.2 CLOUD AND PRECIPITATION OVERLAP - THE PROBLEM. 93
6.2.1 A SUBGRID-SCALE PRECIPITATION MODEL. 95
6.2.2 COMPARISON OF THE SUBGRID-SCALE PRECIPITATION MODEL WITH THE
ORIGINAL
SCHEME. 99
6.2.3 SUMMARY AND DISCUSSION. 112
6.3 CLOUD AND PRECIPITATION OVERLAP - A PARAMETRIZATION. 114
6.3.1 DESCRIPTION OF THE STRATIFORM PRECIPITATION PARAMETRIZATION.N115
6.3.2 COMPARISON OF THE PARAMETRIZATION TO THE SUBGRID-SCALE MODEL
. 121
6.3.3 THE INFLUENCE OF THE NEW PARAMETRIZATION ON THE MODEL CLIMATE .
125
6.3.4 DISCUSSION. 131
6.3.5 CONCLUSIONS.133
7 THE EVALUATION OF CLOUD PARAMETRIZATIONS 135
7.1 INTRODUCTION. 135
7.2 MODEL CLIMATE. 136
7.2.1 BROADBAND RADIATIVE FLUXES. 136
7.2.2 CLOUD RADIATIVE FORCING. 138
7.2.3 CLOUD FRACTION. 140
7.3 SINGLE COLUMN MODELLING. 142
7.4
NWP
FORECAST EVALUATION.V.146
7.5 THE VERIFICATION OF VERTICAL CLOUD STRUCTURE.148
7.6 THE USE OF COMPOSITE DATA SETS. 153
7.7 A STRATEGY FOR CLOUD EVALUATION .159
8 CONCLUDING REMARKS 163
A - LIST OF ACRONYMS 169
B - MIXED PHASE AND SATURATION WATER VAPOUR PRESSURE 171
REFERENCES 173
II |
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| language | English |
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| physical | V, 193 S. Ill., graph. Darst. |
| publishDate | 2000 |
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| spelling | Jakob, Christian 1967- Verfasser (DE-588)122827279 aut The representation of cloud cover in atmospheric general circulation models von Christian Jakob 2000 V, 193 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier München, Univ., Fak. für Physik, Diss., 2001 Hochschulschrift gtt Wolkenbildung (DE-588)4190245-2 gnd rswk-swf Zirkulationsmodell (DE-588)4466091-1 gnd rswk-swf General circulation model (DE-588)4466088-1 gnd rswk-swf Bedeckungsgrad (DE-588)4519386-1 gnd rswk-swf Parametrisierung (DE-588)4402701-1 gnd rswk-swf Wolke (DE-588)4125270-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content General circulation model (DE-588)4466088-1 s Wolke (DE-588)4125270-6 s Bedeckungsgrad (DE-588)4519386-1 s DE-604 Zirkulationsmodell (DE-588)4466091-1 s Wolkenbildung (DE-588)4190245-2 s Parametrisierung (DE-588)4402701-1 s DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009346968&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Jakob, Christian 1967- The representation of cloud cover in atmospheric general circulation models Hochschulschrift gtt Wolkenbildung (DE-588)4190245-2 gnd Zirkulationsmodell (DE-588)4466091-1 gnd General circulation model (DE-588)4466088-1 gnd Bedeckungsgrad (DE-588)4519386-1 gnd Parametrisierung (DE-588)4402701-1 gnd Wolke (DE-588)4125270-6 gnd |
| subject_GND | (DE-588)4190245-2 (DE-588)4466091-1 (DE-588)4466088-1 (DE-588)4519386-1 (DE-588)4402701-1 (DE-588)4125270-6 (DE-588)4113937-9 |
| title | The representation of cloud cover in atmospheric general circulation models |
| title_auth | The representation of cloud cover in atmospheric general circulation models |
| title_exact_search | The representation of cloud cover in atmospheric general circulation models |
| title_full | The representation of cloud cover in atmospheric general circulation models von Christian Jakob |
| title_fullStr | The representation of cloud cover in atmospheric general circulation models von Christian Jakob |
| title_full_unstemmed | The representation of cloud cover in atmospheric general circulation models von Christian Jakob |
| title_short | The representation of cloud cover in atmospheric general circulation models |
| title_sort | the representation of cloud cover in atmospheric general circulation models |
| topic | Hochschulschrift gtt Wolkenbildung (DE-588)4190245-2 gnd Zirkulationsmodell (DE-588)4466091-1 gnd General circulation model (DE-588)4466088-1 gnd Bedeckungsgrad (DE-588)4519386-1 gnd Parametrisierung (DE-588)4402701-1 gnd Wolke (DE-588)4125270-6 gnd |
| topic_facet | Hochschulschrift Wolkenbildung Zirkulationsmodell General circulation model Bedeckungsgrad Parametrisierung Wolke |
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