Geophysical methods for detecting permafrost in high mountains:
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Format: | Buch |
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Veröffentlicht: |
Zürich
Eigenverl. d. Versuchsanst. f. Wasserbau, Hydrologie u. Glaziologie
2001
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Schriftenreihe: | Mitteilungen der Versuchsanstalt für Wasserbau, Hydrologie und Glaziologie an der Eidgenössischen Technischen Hochschule Zürich
171 |
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Online-Zugang: | Inhaltsverzeichnis |
Beschreibung: | Zugl.: Zürich, Techn. Hochsch., Diss. - Zsfassung in dt. Sprache |
Beschreibung: | 204 S. Ill., graph. Darst., Kt. |
Internformat
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245 | 1 | 0 | |a Geophysical methods for detecting permafrost in high mountains |c Christian Hauck |
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Datensatz im Suchindex
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adam_text | TO LJVW PI VERSUCHSANSTALT FUR WASSERBAU. HYDROLOGIE UND GLAZIOLOGIE
DER EIDGENOSSISCHEN TECHNISCHEN HOCHSCHULE ZURICH MITTEILUNGEN 171
GEOPHYSICAL METHODS FOR DETECTING PERMAFROST IN HIGH MOUNTAINS INSTITIJT
FOR WASSERBAU UND WA8SERWIRTSCHAFT TECHNISCHE UNIVESSLTST LAU.-.STADT
CHRISTIAN HAUCK PETERSENSTR. 13,64287 DARMSTADT TEL 0 8151/16 2143 *
FAX: 16 32 43 ZURICH, 2001 HERAUSGEBER: PROF. DR.-LNG. H.-E. MINOR
BIBLIOTHEKWASSERUND UMWELT (TU DARMSTADT).. CONTENTS ABSTRACT 7
ZUSAMMENFASSUNG 9 1 INTRODUCTION * 11 1.1 THE EU-PROJECT PACE 12 1.2
GEOPHYSICS IN THE STUDY OF PERMAFROST 12 1.3 OBJECTIVES AND STRUCTURE OF
THE THESIS 14 2 FIELD SITES 15 2.1 JANSSONHAUGEN/SVALBARD 15 2.2
HIORTHFJELLET/SVALBARD 18 2.3 TARFALA/SWEDEN 21 2.4 JUVVASSH0E/NORWAY 23
2.5 SCHILTHORN/SWITZERLAND 26 2.6 ZERMATT/SWITZERLAND 29 2.7 VAL
BEVER/SWITZERLAND 31 2.8 MURTEL/SWITZERLAND 33 2.9 STELVIO PASS/ITALY 37
2.10 FOSCAGNO/ITALY 39 2.11 EL VELETA/SPAIN 41 3 GEOPHYSICAL METHODS 4 5
3.1 PRINCIPLES OF GEOPHYSICAL PROSPECTING 45 3.2 PHYSICAL MATERIAL
PROPERTIES OF PERMAFROST 45 3.2.1 ELECTRICAL RESISTIVITY 46 1 3.2.2
SEISMIC VELOCITY 47 3.3 GEOPHYSICAL SURVEY AND INTERPRETATION TECHNIQUES
49 3.3.1 MAPPING 49 3.3.2 VERTICAL SOUNDING 50 3.3.3 IMAGING 50 3.3.4
TOMOGRAPHIC INVERSION _, 51 3.4 INVERSION THEORY 51 3.4.1 INVERSE AND
FORWARD PROBLEM 51 3.4.2 SOLUTION OF THE INVERSE PROBLEM 53 3.4.3 OVER-,
UNDER- AND MIXED-DETERMINED PROBLEMS AND DAMPED LEAST-SQUARES SOLUTION
53 3.5 NON-LINEARITY 55 3.6 ACCURACY, RESOLUTION AND EQUIVALENCE 56 4 DC
RESISTIVITY TOMOGRAPHY 57 4.1 INTRODUCTION 57 4.2 THEORY . 58 4.2.1
HOMOGENEOUS HALF-SPACE MODEL 59 4.2.2 TWO- AND THREE-DIMENSIONAL
HALF-SPACE MODEL 59 4.2.3 GEOMETRIC FACTOR AND APPARENT RESISTIVITY 60
4.2.4 ELECTRODE ARRAY GEOMETRIES 60 4.3 APPLICATION OF DC RESISTIVITY
TOMOGRAPHY TO PERMAFROST STUDIES ... 62 4.3.1 DATA ACQUISITION 62 4.3.2
INVERSION 62 4.3.3 CHOICE OF ARRAY TYPE AND MODEL SENSITIVITY 67 4.3.4
RESULTS 69 4.3.5 CONCLUSION 71 4.4 LABORATORY DC RESISTIVITY
MEASUREMENTS 72 4.4.1 INTRODUCTION 72 4.4.2 RESISTIVITY, TEMPERATURE AND
UNFROZEN WATER CONTENT 73 4.4.3 EXPERIMENTAL PROCEDURE 75 4.4.4 RESULTS
78 2 4.4.5 CONCLUSIONS 84 4.5 TIME-LAPSE DC RESISTIVITY TOMOGRAPHY TO
MONITOR FREEZING AND THAW- ING PROCESSES IN PERMAFROST AREAS 86 4.5.1
INTRODUCTION 86 4.5.2 INSTALLATION OF A FIXED ELECTRODE ARRAY AND DATA
ACQUISITION . . 87 4.5.3 SYNTHETIC MODELLING OF TIME-LAPSE DC
RESISTIVITY TOMOGRAPHY DATA 88 4.5.4 QUASI-MONTHLY RESISTIVITY
MEASUREMENTS AT SCHILTHORN 90 4.5.5 ANALYSIS OF THE DATA IN TERMS OF
TEMPERATURE AND UNFROZEN WATER CONTENT 96 4.5.6 CONCLUSION 99 5
ELECTROMAGNETIC INDUCTION METHODS 101 5.1 INTRODUCTION 101 5.2 THEORY
AND INSTRUMENTS 102 5.2.1 FREQUENCY-DOMAIN SYSTEMS (EM-31, GEM-300) 102
5.2.2 TIME-DOMAIN SYSTEMS (PROTEM) 107 5.3 RESULTS 109 5.3.1
CONDUCTIVITY MAPPING USING A PRIORI INFORMATION (EM-31) . . 109 5.3.2
INVESTIGATION OF THE SPATIAL VARIABILITY AT THE PACE DRILL SITES (EM-31)
113 5.3.3 ACTIVE LAYER MAPPING USING THE OPTIMAL FREQUENCY (GEM-300)
113 5.3.4 ELECTROMAGNETIC SOUNDINGS TO DETERMINE THE DEPTH OF PER-
MAFROST BASE (PROTEM) 114 5.4 CONCLUSIONS 119 6 REFRACTION SEISMICS 121
6.1 INTRODUCTION 121 6.2 THEORY AND TOMOGRAPHIC INVERSION 122 6.2.1
ELASTIC WAVES 122 6.2.2 CRITICAL REFRACTION AND HEAD WAVE 122 6.2.3 2-D
REFRACTION TOMOGRAPHY 123 6.3 SYNTHETIC MODELLING TO OPTIMISE DATA
ACQUISITION AND DATA INVERSION . 125 6.3.1 DETERMINING THE MINIMAL
NUMBER OF SOURCES AND RECEIVERS . . .125 3 6.3.2 CHOICE OF THE INITIAL
VELOCITY MODEL 126 6.3.3 REGULARISATION PARAMETER 129 6.3.4 CONVERGENCE
130 6.4 FIELD EXAMPLE * VAL BEVER 132 6.4.1 DATA ACQUISITION 134 6.4.2
RESULTS 134 6.5 CONCLUSIONS 137 7 THERMAL METHODS 139 7.1 BOTTOM
TEMPERATURE OF SNOW COVER (BTS) 139 7.2 PASSIVE MICROWAVE RADIOMETRY 140
7.2.1 INTRODUCTION 140 7.2.2 THEORY 140 7.3 SETUP OF THE FIELD
MEASUREMENT AND DATA ACQUISITION SYSTEM 142 7.4 FIELD EXAMPLE *
SCHILTHORN 143 7.5 CONCLUSIONS 145 8 DISCUSSION 147 8.1 GENERAL MOUNTAIN
PERMAFROST PROSPECTING . 149 8.2 MAPPING THE LATERAL VARIATION OF
MOUNTAIN PERMAFROST 152 8.3 DETERMINING THE VERTICAL EXTENT OF MOUNTAIN
PERMAFROST (SOUNDING) . 155 8.4 ACTIVE LAYER STUDIES 158 8.5
CHARACTERISING THE PHYSICAL PROPERTIES OF MOUNTAIN PERMAFROST .... 160
8.5.1 VAL BEVER: ICE ANOMALIES 160 8.5.2 SCHILTHORN: BEDROCK ANOMALIES
161 8.5.3 JUVVASSH0E: AIR CAVERN ANOMALIES 163 8.6 PERMAFROST MONITORING
163 9 CONCLUSION AND OUTLOOK 167 BIBLIOGRAPHY 170 ACKNOWLEDGEMENTS 180 4
A FIELD RESULTS 182 A.I JANSSONHAUGEN 182 A.2 HIORTHFJELLET 183- A.3
TARFALA 184 A.4 JUVVASSH0E 186 A.5 SCHILTHORN 190 A.6 ZERMATT 193 A.7
VAL BEVER 194 A.8 MURTEL 196 A.9 STELVIO 198 A.10 FOSCAGNO 199 A.11 EL
VELETA 199
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publishDate | 2001 |
publishDateSearch | 2001 |
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publisher | Eigenverl. d. Versuchsanst. f. Wasserbau, Hydrologie u. Glaziologie |
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series | Mitteilungen der Versuchsanstalt für Wasserbau, Hydrologie und Glaziologie an der Eidgenössischen Technischen Hochschule Zürich |
series2 | Mitteilungen der Versuchsanstalt für Wasserbau, Hydrologie und Glaziologie an der Eidgenössischen Technischen Hochschule Zürich |
spelling | Hauck, Christian Verfasser aut Geophysical methods for detecting permafrost in high mountains Christian Hauck Zürich Eigenverl. d. Versuchsanst. f. Wasserbau, Hydrologie u. Glaziologie 2001 204 S. Ill., graph. Darst., Kt. txt rdacontent n rdamedia nc rdacarrier Mitteilungen der Versuchsanstalt für Wasserbau, Hydrologie und Glaziologie an der Eidgenössischen Technischen Hochschule Zürich 171 Zugl.: Zürich, Techn. Hochsch., Diss. - Zsfassung in dt. Sprache Dauerfrostboden (DE-588)4129794-5 gnd rswk-swf Geophysik (DE-588)4020252-5 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Dauerfrostboden (DE-588)4129794-5 s Geophysik (DE-588)4020252-5 s DE-604 Mitteilungen der Versuchsanstalt für Wasserbau, Hydrologie und Glaziologie an der Eidgenössischen Technischen Hochschule Zürich 171 (DE-604)BV000019874 171 HEBIS Datenaustausch Darmstadt application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009702792&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
spellingShingle | Hauck, Christian Geophysical methods for detecting permafrost in high mountains Mitteilungen der Versuchsanstalt für Wasserbau, Hydrologie und Glaziologie an der Eidgenössischen Technischen Hochschule Zürich Dauerfrostboden (DE-588)4129794-5 gnd Geophysik (DE-588)4020252-5 gnd |
subject_GND | (DE-588)4129794-5 (DE-588)4020252-5 (DE-588)4113937-9 |
title | Geophysical methods for detecting permafrost in high mountains |
title_auth | Geophysical methods for detecting permafrost in high mountains |
title_exact_search | Geophysical methods for detecting permafrost in high mountains |
title_full | Geophysical methods for detecting permafrost in high mountains Christian Hauck |
title_fullStr | Geophysical methods for detecting permafrost in high mountains Christian Hauck |
title_full_unstemmed | Geophysical methods for detecting permafrost in high mountains Christian Hauck |
title_short | Geophysical methods for detecting permafrost in high mountains |
title_sort | geophysical methods for detecting permafrost in high mountains |
topic | Dauerfrostboden (DE-588)4129794-5 gnd Geophysik (DE-588)4020252-5 gnd |
topic_facet | Dauerfrostboden Geophysik Hochschulschrift |
url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=009702792&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
volume_link | (DE-604)BV000019874 |
work_keys_str_mv | AT hauckchristian geophysicalmethodsfordetectingpermafrostinhighmountains |