Modeling transient three-dimensional temperature fields in mountain permafrost:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Abschlussarbeit Buch |
| Sprache: | English |
| Veröffentlicht: |
Zürich
Geograph. Inst. der Univ. Zürich
2011
|
| Schriftenreihe: | Schriftenreihe Physische Geographie
60 : Glaziologie und Geomorphodynamik |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis Klappentext |
| Beschreibung: | Zsfassung in engl. und dt. Sprache |
| Beschreibung: | 148 S. Ill., graph. Darst. 24 cm |
| ISBN: | 3855432562 |
Internformat
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| 100 | 1 | |a Nötzli, Jeannette |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a Modeling transient three-dimensional temperature fields in mountain permafrost |c Jeannette Nötzli |
| 264 | 1 | |a Zürich |b Geograph. Inst. der Univ. Zürich |c 2011 | |
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| 490 | 1 | |a Schriftenreihe Physische Geographie |v 60 : Glaziologie und Geomorphodynamik | |
| 500 | |a Zsfassung in engl. und dt. Sprache | ||
| 502 | |a Ref.: Wilfried Haeberli, S. Gruber, V. Romanovsky und C. Harris | ||
| 502 | |b Dissertation |c Universität Zürich |d 2008 | ||
| 650 | 4 | |a Periglaziale Prozesse, Periglazialer Formenschatz (inkl. Permafrost) | |
| 650 | 4 | |a Dissertationen Abt. Physische Geographie | |
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Datensatz im Suchindex
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|---|---|
| adam_text | Table of Contents
Abstract
і
Zusammenfassung
iii
List of Abbreviations
vii
Part I
-
Synopsis
1
Introduction
3
1.1
Motivation and Problem Statement
3
1.2
Objective and Research Questions
4
1.3
Approach
б
1.4
Organization of Thesis
б
2
Scientific Background
9
2.1
Mountain Permafrost
9
2.1.1
Definition
9
2.1.2
Relevance
10
2.1.3
Characteristics and Governing Factors
13
2.1.4
Thermal Conditions at the Surface
15
2.1.5
Subsurface Thermal Regime
15
2.1.6
Response to Climate Change and Slope Stability
17
2.2
Modeling Mountain Permafrost
20
2.2.1
Empirical and Statistical Models
20
2.2.2
Surface Energy Balance
21
2.2.3
Subsurface Heat Transport
21
2.2.4
Driving
Meteo Data
22
3
Modeling Procedure
23
3.1
Overview of the Modeling Procedure
23
3.2
Atmosphere Surface Interface: RCM
-
Distributed Surface Energy Balance
25
3.2.1
Construction of RCM-based Climate Time Series
26
3.2.2
The Energy Balance Model TEBAL
26
3.3
Surface Subsurface Interface: Surface Energy Balance
-
Subsurface Heat Transport
27
3.3.1
TEBAL and Upper Boundary Condition
27
3.3.2
Subsurface Heat Conduction
27
3.4
Validation of the Modeling Approach
28
3.4.1
Energy Balance Model for Steep Topography
29
3.4.2
Subsurface Temperatures at Borehole Locations
29
3.4.3
Sensitivity Studies
30
4
Modeled
Temperature Fields in Mountain Permafrost
31
4.1
Equilibrium Temperature Fields
31
4.2
Transient Temperature Fields
32
4.2.1
Effects of Past Climatic Conditions
34
4.2.2
Effects of Future Warming
34
4.2.3
Effects of Topography
35
4.3
Borehole Sites
37
4.3.1 Zugspitze:
Planning of a Permafrost Borehole
37
4.3.2
Schilthorn: Current and Future Subsurface Temperatures
39
4.4
Case Study
Matterhorn
41
5
General Discussion
43
5.1
Modeling Approach
43
5.2
Interpretation of Results
45
5.3
Implications for Permafrost Research
46
5.3.1
Mapping of Mountain Permafrost
46
5.3.2
Interpretation of Borehole Profiles
46
5.3.3
Slope Stability
47
6
Summary, Outlook, and Conclusion
49
6.1
Summary of Progress
49
6.2
Major Results
50
6.3
Future Research
52
6.4
Conclusion
54
References
55
Part II
-
Publications
A Three-dimensional Distribution and Evolution of Permafrost
Temperatures in Idealized High-mountain Topography
63
В
Ground Surface Temperature Scenarios for Complex High-Mountain
Topographies Based on Regional Climate Model Results
87
С
Transient Thermal Effects in Alpine Permafrost
103
D
Comparison of Simulated 2D Temperature Profiles with Time-Lapse
Electrical Resistivity Data at the Schilthorn Crest, Switzerland
129
Appendix
Personal Bibliography
145
Acknowledgements
147
Permafrost is a common and important thermal phenomenon in the subsurface of
high mountains. Mountain permafrost is not directly visible and its measurement and
extrapolation in complex and steep mountain terrain is difficult. Assessing and mo¬
deling mountain permafrost conditions is therefore an important topic in research.
In this study, mountain permafrost is described and analyzed at depth (i.e., below
the active layer) with a main focus on the three-dimensional distribution and tran¬
sient effects from past and potential future climate variations. For this, we designed
and tested a modeling procedure that combines distributed surface energy balance
based on climate time series and subsurface heat transport by conduction. Due to
the complex situation in nature, the modeling procedure is first applied to a num¬
ber of idealized test cases with simplified topography, typical surface and subsur¬
face characteristics, and different climate change scenarios.The subsequent simula¬
tions with real topography include the characterization of permafrost conditions at
borehole sites and rock fall starting zones.
|
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| spelling | Nötzli, Jeannette Verfasser aut Modeling transient three-dimensional temperature fields in mountain permafrost Jeannette Nötzli Zürich Geograph. Inst. der Univ. Zürich 2011 148 S. Ill., graph. Darst. 24 cm txt rdacontent n rdamedia nc rdacarrier Schriftenreihe Physische Geographie 60 : Glaziologie und Geomorphodynamik Zsfassung in engl. und dt. Sprache Ref.: Wilfried Haeberli, S. Gruber, V. Romanovsky und C. Harris Dissertation Universität Zürich 2008 Periglaziale Prozesse, Periglazialer Formenschatz (inkl. Permafrost) Dissertationen Abt. Physische Geographie Hochgebirge (DE-588)4025207-3 gnd rswk-swf Dauerfrostboden (DE-588)4129794-5 gnd rswk-swf Modellierung (DE-588)4170297-9 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Hochgebirge (DE-588)4025207-3 s Dauerfrostboden (DE-588)4129794-5 s Modellierung (DE-588)4170297-9 s DE-604 Schriftenreihe Physische Geographie 60 : Glaziologie und Geomorphodynamik (DE-604)BV026608940 60 Digitalisierung UB Augsburg application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024473392&sequence=000003&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis Digitalisierung UB Augsburg application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=024473392&sequence=000004&line_number=0002&func_code=DB_RECORDS&service_type=MEDIA Klappentext |
| spellingShingle | Nötzli, Jeannette Modeling transient three-dimensional temperature fields in mountain permafrost Schriftenreihe Physische Geographie Periglaziale Prozesse, Periglazialer Formenschatz (inkl. Permafrost) Dissertationen Abt. Physische Geographie Hochgebirge (DE-588)4025207-3 gnd Dauerfrostboden (DE-588)4129794-5 gnd Modellierung (DE-588)4170297-9 gnd |
| subject_GND | (DE-588)4025207-3 (DE-588)4129794-5 (DE-588)4170297-9 (DE-588)4113937-9 |
| title | Modeling transient three-dimensional temperature fields in mountain permafrost |
| title_auth | Modeling transient three-dimensional temperature fields in mountain permafrost |
| title_exact_search | Modeling transient three-dimensional temperature fields in mountain permafrost |
| title_full | Modeling transient three-dimensional temperature fields in mountain permafrost Jeannette Nötzli |
| title_fullStr | Modeling transient three-dimensional temperature fields in mountain permafrost Jeannette Nötzli |
| title_full_unstemmed | Modeling transient three-dimensional temperature fields in mountain permafrost Jeannette Nötzli |
| title_short | Modeling transient three-dimensional temperature fields in mountain permafrost |
| title_sort | modeling transient three dimensional temperature fields in mountain permafrost |
| topic | Periglaziale Prozesse, Periglazialer Formenschatz (inkl. Permafrost) Dissertationen Abt. Physische Geographie Hochgebirge (DE-588)4025207-3 gnd Dauerfrostboden (DE-588)4129794-5 gnd Modellierung (DE-588)4170297-9 gnd |
| topic_facet | Periglaziale Prozesse, Periglazialer Formenschatz (inkl. Permafrost) Dissertationen Abt. Physische Geographie Hochgebirge Dauerfrostboden Modellierung Hochschulschrift |
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