Permafrost in ventilated talus slopes below the timberline A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps
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| 100 | 1 | |a Schwindt, Daniel |e Verfasser |0 (DE-588)1049337131 |4 aut | |
| 245 | 1 | 0 | |a Permafrost in ventilated talus slopes below the timberline |b A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps |c von Daniel Schwindt |
| 246 | 1 | 3 | |a Permafrost in ventilierten Hangschutthalden unterhalb der Waldgrenze – eine multi-methodische Studie zum thermalen Regime des Untergrundes und dessen Einfluss auf die zeitliche Variabilität und räumliche Heterogenität von Permafrost an drei Standorten in den Schweizer Alpen |
| 264 | 1 | |c 2013 | |
| 300 | |a XXIII, 319 S. |b Ill., graph. Darst., Kt. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 500 | |a Zsfassung in dt. und engl. Sprache. - Online erschienen: 2014 | ||
| 502 | |b Dissertation |c Universität Würzburg |d 2013 | ||
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| 650 | 0 | 7 | |a Dauerfrostboden |0 (DE-588)4129794-5 |2 gnd |9 rswk-swf |
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Datensatz im Suchindex
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|---|---|
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| adam_text | TABLE OF CONTENTS
ACKNOWLEDGEMENTS I
SUMMARY V
ZUSAMMENFASSUNG IX
TABLE OF CONTENTS XIII
LIST OF TABLES XVII
LIST OF FIGURES XVIII
LIST OF EQUATIONS XXII
LIST OF ABBREVIATIONS XXIII
PART I - INTRODUCTION 1
1 INTRODUCTION 3
1.1 MOTIVATION 3
1.1.1 GENERA.I ASPECTS ON THE GROUND THERMAL REGIME OF PERMAFROST SITES
5
1.1.2 GEOPHYSICS IN THE STUDY OF PERMAFROST 10
1.2 OBJECTIVES 13
1.3 STRUCTURE OF THIS STUDY 16
2 BASIC METHODS 19
2.1 GEOPHYSICAL METHODS 20
2.1.1 ELECTRICAL RESISTIVITY TOMOGRAPHY (ERTJ 21
2.1.2 SEISMIC REFRACTION TOMOGRAPHY (SRTJ 28
2.2 METHODS FOR CHARACTERISING THE GROUND THERMAL REGIME 37
2.2.1 BOTTOM TEMPERATURE OF WINTER SNOW COVER (BTS) 37
2.2.2 TEMPERATURE DATA JOGGING. 38
2.2.3 HUMUS, HUMUS TEMPERATURE AND MOISTURE MAPPING. 39
3 STUDY SITES 41
XIII
HTTP://D-NB.INFO/1050006402
3.1 VAL BEVER & VAL SUSAUNA - STUDY SITES IN THE UPPER ENGADIN 43
3.1.1 VAL BEVER 44
3.1.2 VAJ SUSAUNA 48
3.2 BRIIELTOBEL - STUDY SITE IN THE APPENZELLER ALPS 51
4 FIELD STUDIES 57
PART II - CASE STUDIES 61
5 OPTIMISATION OF QUASI-3D ELECTRICAL RESISTIVITY IMAGING FOR MOUNTAIN
PERMAFROST
STUDIES 63
5.1 METHODOLOGICAL APPROACH 66
5.1.1 SYNTHETIC 3D SUBSURFACE MODEL AND GRID ARRANGEMENT 66
5.1.2 QUASI-3D DATA PROCESSING AND INVERSION 68
5.2 RESULTS FROM SYNTHETIC MODELLING 71
5.2.1 HORIZONTAL MODEL RESOLUTION 71
5.2.2 VERTICAL MODEL RESOLUTION 73
5.2.3 REPRODUCTION OF DEFAULT RESISTIVITY VALUES 75
5.2.4 APPROACH TO INCREASE THE EFFICIENCY OF QUASI-3D DATA ACQUISITION
76
5.2.5 CONVERGENCE CRITERION 78
5.3 CASE STUDY - QUASI-3D ERT VAL SUSAUNA 80
5.3.1 METHODOLOGICAL APPROACH 80
5.3.2 RESULTS OF THE CASE STUDY 81
5.4 DISCUSSION 85
5.5 CONCLUSIONS 90
6 GEOPHYSICAL SUBSURFACE PROPERTIES AND FROZEN GROUND DISTRIBUTION 93
6.1 SITE-SPECIFIC METHODOLOGICAL APPROACH 95
6.1.1 VAL BEVER 95
6.1.2 VAL SUSAUNA 98
6.1.3 BRIIELTOBEL 101
6.2 RESULTS 103
6.2.1 CONFIRMATION OF FROZEN GROUND AND DETERMINATION OF SITE-SPECIFIC
GEOPHYSICAL PROPERTIES OF FROZEN AND UNFROZEN SUBSURFACE MATERIAL. 103
XIV
6.2.2 AREAL ESTIMATION OF FROZEN GROUND DISTRIBUTION 123
6.3 DISCUSSION 128
6.4 CONCLUSIONS 135
7 GEOPHYSICAL MONITORING OF THE SEASONAL AND INTRA-ANNUAL FROZEN GROUND
VARIABILITY
137
7.1 TECHNICAL SETUP OF THE FIXED MONITORING ARRAYS 139
7.2 METHODOLOGICAL APPROACH 142
7.2.1 REPEATABILITY TESTS 142
7.2.2 ERT MONITORING. 143
7.2.3 JOINT ERT/SRT MONITORING. 148
7.2.4 SYNTHETIC DATA MODELLING. 149
7.2.5 SUPPLEMENTAL PARAMETERS. 150
7.3 RESULTS 152
7.3.1 REPEATABILITY TESTS 152
7.3.2 ERT MONITORING. 157
7.3.3 SRTMONITORING VAJSUSAUNA 185
7.3.4 SYNTHETIC DATA MODELLING. 193
7.4 DISCUSSION 197
7.4.1 DISCUSSION OF THE METHODOLOGICAL/TECHNICAL APPROACH 197
7.4.2 DISCUSSION OF MONITORING RESULTS 202
7.5 CONCLUSIONS 210
8 THE GROUND THERMAL REGIME 213
8.1 METHODOLOGICAL APPROACH 215
8.1.1 MINIATURE TEMPERATURE DATA LOGGER. 215
8.1.2 BOTTOM TEMPERATURE OF THE WINTER SNOW COVER (BTS) 219
8.1.3 HUMUS TEMPERATURE AND MOISTURE 221
8.2 RESULTS AND INTERPRETATION 222
8.2.1 RESULTS FROM BTS MEASUREMENTS. 222
8.2.2 HUMUS AND VEGETATION MAPPING AT VAL SUSAUNA 228
8.2.3 ANALYSIS OF TEMPERATURE LOGGER DATA 232
XV
8.3 DISCUSSION 263
8.4 CONCLUSIONS 277
PART III
- SYNTHESIS 281
9 SYNTHESIS 283
9.1 PERMAFROST EVOLUTION, DISTRIBUTION AND THE GROUND THERMAL REGIME 286
9.1.1 DIVERGENCES IN THE SEASONAL MECHANISM OF THE GROUND THERMAL REGIME
BETWEEN THE THREE STUDY SITES 286
9.1.2 THOUGHTS ON THE INITIATION OF SUPERCOOLING. 292
9.2 THE BOTTOM TEMPERATURE OF THE HIGH-SUMMER HUMUS COVER FOR
DETERMINING
THE AREAL PERMAFROST DISTRIBUTION? 295
9.3 THOUGHTS ON THE EFFECTS OF CLIMATE CHANGE ON PERMAFROST IN
SUPERCOOLED TALUS
SLOPES 298
10 OUTLOOK 301
REFERENCES 303
XVI
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| discipline | Agrar-/Forst-/Ernährungs-/Haushaltswissenschaft / Gartenbau Geographie |
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| spellingShingle | Schwindt, Daniel Permafrost in ventilated talus slopes below the timberline A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps Monitorüberwachung (DE-588)4291501-6 gnd Schutthalde (DE-588)4180257-3 gnd Dauerfrostboden (DE-588)4129794-5 gnd |
| subject_GND | (DE-588)4291501-6 (DE-588)4180257-3 (DE-588)4129794-5 (DE-588)4014744-7 (DE-588)4113937-9 |
| title | Permafrost in ventilated talus slopes below the timberline A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps |
| title_alt | Permafrost in ventilierten Hangschutthalden unterhalb der Waldgrenze – eine multi-methodische Studie zum thermalen Regime des Untergrundes und dessen Einfluss auf die zeitliche Variabilität und räumliche Heterogenität von Permafrost an drei Standorten in den Schweizer Alpen |
| title_auth | Permafrost in ventilated talus slopes below the timberline A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps |
| title_exact_search | Permafrost in ventilated talus slopes below the timberline A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps |
| title_full | Permafrost in ventilated talus slopes below the timberline A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps von Daniel Schwindt |
| title_fullStr | Permafrost in ventilated talus slopes below the timberline A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps von Daniel Schwindt |
| title_full_unstemmed | Permafrost in ventilated talus slopes below the timberline A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps von Daniel Schwindt |
| title_short | Permafrost in ventilated talus slopes below the timberline |
| title_sort | permafrost in ventilated talus slopes below the timberline a multi methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the swiss alps |
| title_sub | A multi-methodological study on the ground thermal regime and its impact on the temporal variability and spatial heterogeneity of permafrost at three sites in the Swiss Alps |
| topic | Monitorüberwachung (DE-588)4291501-6 gnd Schutthalde (DE-588)4180257-3 gnd Dauerfrostboden (DE-588)4129794-5 gnd |
| topic_facet | Monitorüberwachung Schutthalde Dauerfrostboden Engadin Hochschulschrift |
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