SOFOS - a new satellite-based operational fog observation scheme:
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English German |
| Published: |
Marburg, Lahn
Selbstverl. der Marburger Geograph. Gesellschaft
2007
|
| Series: | Marburger geographische Schriften
144 |
| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Item Description: | Zsfassung in dt. Sprache |
| Physical Description: | XIX, 132 S. Ill., graph. Darst, Kt. |
| ISBN: | 9783883530697 |
Staff View
MARC
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| 245 | 1 | 0 | |a SOFOS - a new satellite-based operational fog observation scheme |c Jan Cermak |
| 264 | 1 | |a Marburg, Lahn |b Selbstverl. der Marburger Geograph. Gesellschaft |c 2007 | |
| 300 | |a XIX, 132 S. |b Ill., graph. Darst, Kt. | ||
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Record in the Search Index
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| adam_text | Contents
Preface
............................................................................................................
VI
List of Figures
.................................................................................................
X
List of Tables
...............................................................................................XIV
List of Acronyms
..........................................................................................
XV
List of Symbols
.........................................................................................XVII
1
Motivation, Aims and Outline
...........................................................1
1.1
Why Fog?
............................................................................................1
1.2
Why Satellites?
...................................................................................2
1.3
Aim of this Work and Outline
..............................................................3
2
Conceptual Design
..............................................................................6
2.1
Fog Processes and Properties
...............................................................6
2.2
Approaches to Fog Detection
...............................................................9
2.3
SOFOS Design
...................................................................................13
3
Data, Models and Operational Framework
...................................18
3.1
Satellite Data
-
The MSG SEVIRI System
........................................18
3.2
Ancillary Data and Models
................................................................20
3.2.1
Synoptical Data
..................................................................................20
3.2.2
Digital Elevation Model
.....................................................................20
3.2.3
Radiative Transfer Model
...................................................................21
3.3
FMet: An Operational Framework Including Data Processing
..........22
3.3.1
MetGet: Raw Data Handling and Import
...........................................24
3.3.2
MetGeo: Geolocation and Geometry
.................................................24
3.3.3
MetCal: Image Calibration
.................................................................25
3.3.4
MetProd: Operational Product Generation
........................................26
3.3.5
MetOut: Output Formatting
...............................................................26
3.4
Auxiliary Satellite Products
...............................................................27
4
Method Development
.......................................................................33
4.1
Theoretical Basis
................................................................................33
4.1.1
The Theoretical Challenge: Inverse Problems
...................................33
4.1.2
Cloud Properties and Their Effect on Radiative Transfer
..................35
4.2
Detection of Very Low Stratus
...........................................................38
4.2.1
Cloud Identification
............................................................................40
4.2.2
Snow Pixel Elimination
.....................................................................45
VIII
4.2.3
Cloud Phase Determination
...............................................................47
4.2.4
Small Droplet Proxy Test
...................................................................49
4.2.5
Spatial Entity Identification
...............................................................51
4.2.6
Stratiformity Test
...............................................................................53
4.2.7
Very Low Cloud Plausibility Test
......................................................54
4.3
Cloud Top Height Determination
.......................................................56
4.3.1
Existing Approaches
..........................................................................56
4.3.2
Method Design and Implementation
..................................................58
4.4
Cloud Geometrical Thickness
............................................................64
4.4.1
Physical Basis
....................................................................................65
4.4.2
Approaches to Cloud Geometry Retrieval
.........................................68
4.4.3
Vertical Stratification of Fog and Very Low Stratiform Clouds
.........72
4.4.4
Development and Implementation of a Cloud Water Model
.............76
5
Validation and Appraisal
.................................................................85
5.1
Validation Approach
...........................................................................85
5.1.1
Aims and Data Selection
....................................................................85
5.1.2
Sources of Uncertainty
.......................................................................87
5.1.3
Intercomparison Methodology
...........................................................88
5.2
Validation Study
.................................................................................90
5.2.1
Product Data Set
.................................................................................91
5.2.2
Very Low Cloud/Ground Fog Plus Elevated Fog
..............................93
5.2.3
Ground Fog
......................................................................................100
5.3
Validation Summary
.........................................................................104
6
Summary and Outlook
..................................................................106
6.1
Summary
..........................................................................................106
6.2
Outlook
.............................................................................................108
7 Zusammenfassung...........................................................................113
8
Bibliography
....................................................................................116
IX
|
| adam_txt |
Contents
Preface
.
VI
List of Figures
.
X
List of Tables
.XIV
List of Acronyms
.
XV
List of Symbols
.XVII
1
Motivation, Aims and Outline
.1
1.1
Why Fog?
.1
1.2
Why Satellites?
.2
1.3
Aim of this Work and Outline
.3
2
Conceptual Design
.6
2.1
Fog Processes and Properties
.6
2.2
Approaches to Fog Detection
.9
2.3
SOFOS Design
.13
3
Data, Models and Operational Framework
.18
3.1
Satellite Data
-
The MSG SEVIRI System
.18
3.2
Ancillary Data and Models
.20
3.2.1
Synoptical Data
.20
3.2.2
Digital Elevation Model
.20
3.2.3
Radiative Transfer Model
.21
3.3
FMet: An Operational Framework Including Data Processing
.22
3.3.1
MetGet: Raw Data Handling and Import
.24
3.3.2
MetGeo: Geolocation and Geometry
.24
3.3.3
MetCal: Image Calibration
.25
3.3.4
MetProd: Operational Product Generation
.26
3.3.5
MetOut: Output Formatting
.26
3.4
Auxiliary Satellite Products
.27
4
Method Development
.33
4.1
Theoretical Basis
.33
4.1.1
The Theoretical Challenge: Inverse Problems
.33
4.1.2
Cloud Properties and Their Effect on Radiative Transfer
.35
4.2
Detection of Very Low Stratus
.38
4.2.1
Cloud Identification
.40
4.2.2
Snow Pixel Elimination
.45
VIII
4.2.3
Cloud Phase Determination
.47
4.2.4
Small Droplet Proxy Test
.49
4.2.5
Spatial Entity Identification
.51
4.2.6
Stratiformity Test
.53
4.2.7
Very Low Cloud Plausibility Test
.54
4.3
Cloud Top Height Determination
.56
4.3.1
Existing Approaches
.56
4.3.2
Method Design and Implementation
.58
4.4
Cloud Geometrical Thickness
.64
4.4.1
Physical Basis
.65
4.4.2
Approaches to Cloud Geometry Retrieval
.68
4.4.3
Vertical Stratification of Fog and Very Low Stratiform Clouds
.72
4.4.4
Development and Implementation of a Cloud Water Model
.76
5
Validation and Appraisal
.85
5.1
Validation Approach
.85
5.1.1
Aims and Data Selection
.85
5.1.2
Sources of Uncertainty
.87
5.1.3
Intercomparison Methodology
.88
5.2
Validation Study
.90
5.2.1
Product Data Set
.91
5.2.2
Very Low Cloud/Ground Fog Plus Elevated Fog
.93
5.2.3
Ground Fog
.100
5.3
Validation Summary
.104
6
Summary and Outlook
.106
6.1
Summary
.106
6.2
Outlook
.108
7 Zusammenfassung.113
8
Bibliography
.116
IX |
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| discipline | Geologie / Paläontologie Geographie |
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| genre_facet | Hochschulschrift |
| id | DE-604.BV023256125 |
| illustrated | Illustrated |
| index_date | 2024-07-02T20:29:55Z |
| indexdate | 2024-07-09T21:14:16Z |
| institution | BVB |
| isbn | 9783883530697 |
| language | English German |
| oai_aleph_id | oai:aleph.bib-bvb.de:BVB01-016441401 |
| oclc_num | 230138071 |
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| physical | XIX, 132 S. Ill., graph. Darst, Kt. |
| publishDate | 2007 |
| publishDateSearch | 2007 |
| publishDateSort | 2007 |
| publisher | Selbstverl. der Marburger Geograph. Gesellschaft |
| record_format | marc |
| series | Marburger geographische Schriften |
| series2 | Marburger geographische Schriften |
| spelling | Cermak, Jan 1977- Verfasser (DE-588)133206556 aut SOFOS - a new satellite-based operational fog observation scheme Jan Cermak Marburg, Lahn Selbstverl. der Marburger Geograph. Gesellschaft 2007 XIX, 132 S. Ill., graph. Darst, Kt. txt rdacontent n rdamedia nc rdacarrier Marburger geographische Schriften 144 Zsfassung in dt. Sprache Zugl.: Marburg, Univ., Diss., 2006 Nebel (DE-588)4041483-8 gnd rswk-swf Satellitenfernerkundung (DE-588)4224344-0 gnd rswk-swf Angewandte Meteorologie (DE-588)4260307-9 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Nebel (DE-588)4041483-8 s Satellitenfernerkundung (DE-588)4224344-0 s Angewandte Meteorologie (DE-588)4260307-9 s DE-604 Marburger geographische Schriften 144 (DE-604)BV000005003 144 Digitalisierung UB Bamberg application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016441401&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Cermak, Jan 1977- SOFOS - a new satellite-based operational fog observation scheme Marburger geographische Schriften Nebel (DE-588)4041483-8 gnd Satellitenfernerkundung (DE-588)4224344-0 gnd Angewandte Meteorologie (DE-588)4260307-9 gnd |
| subject_GND | (DE-588)4041483-8 (DE-588)4224344-0 (DE-588)4260307-9 (DE-588)4113937-9 |
| title | SOFOS - a new satellite-based operational fog observation scheme |
| title_auth | SOFOS - a new satellite-based operational fog observation scheme |
| title_exact_search | SOFOS - a new satellite-based operational fog observation scheme |
| title_exact_search_txtP | SOFOS - a new satellite-based operational fog observation scheme |
| title_full | SOFOS - a new satellite-based operational fog observation scheme Jan Cermak |
| title_fullStr | SOFOS - a new satellite-based operational fog observation scheme Jan Cermak |
| title_full_unstemmed | SOFOS - a new satellite-based operational fog observation scheme Jan Cermak |
| title_short | SOFOS - a new satellite-based operational fog observation scheme |
| title_sort | sofos a new satellite based operational fog observation scheme |
| topic | Nebel (DE-588)4041483-8 gnd Satellitenfernerkundung (DE-588)4224344-0 gnd Angewandte Meteorologie (DE-588)4260307-9 gnd |
| topic_facet | Nebel Satellitenfernerkundung Angewandte Meteorologie Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=016441401&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
| volume_link | (DE-604)BV000005003 |
| work_keys_str_mv | AT cermakjan sofosanewsatellitebasedoperationalfogobservationscheme |