Source, mechanism, and rate of groundwater recharge in the south-western part of the Main Ethiopian Rift, East Africa:
Saved in:
| Main Author: | |
|---|---|
| Format: | Thesis Book |
| Language: | English |
| Published: |
Bochum
Univ., Selbstverl. Inst. für Geologie, Mineralogie und Geophysik
2015
|
| Series: | Bochumer geowissenschaftliche Arbeiten
22 |
| Subjects: | |
| Online Access: | Inhaltsverzeichnis |
| Item Description: | Literaturangaben |
| Physical Description: | VIII, 185 S. Ill., graph. Darst., Kt. 30 cm |
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| 245 | 1 | 0 | |a Source, mechanism, and rate of groundwater recharge in the south-western part of the Main Ethiopian Rift, East Africa |c Aychluhim D. Damtew |
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Record in the Search Index
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| adam_text |
TABLE OF CONTENTS
DECLARATION II
EXTENDED ABSTRACT III
KURZFASSUNG V
ACKNOWLEDGEMENT VII
TABLE OF CONTENTS 1
LIST OF FIGURES 3
LIST OF TABLES 6
ACRONYMS 7
STRUCTURE OF THE DISSERTATION 9
PART
- 1 GEOLOGY
AND HYDROGEOLOGY OF THE
SOUTH-WESTERN PART OF
THE MAIN
ETHIOPIAN RIFT 11
1.1 INTRODUCTION 11
1.2 METHODS AND MATERIALS 13
1.3 REGIONAL AND LOCAL GEOLOGY 16
1.3.1 THE EAST AFRICAN RIFT SYSTEM (EARS) 16
1.3.2 THE ETHIOPIAN
RIFT (ER) 17
1.3.3 THE MAIN ETHIOPIAN RJFT (MER) : 19
1.4 GEOLOGY OF THE STUDY AREA 23
1.4.1 LITHOLOGIC UNITS 23
1.4.2 TECTONICS 26
1.5 MORPHOLOGY 30
1.6 HYDROMETEOROLOGY 33
1.7 SOIL AND LAND-USE 37
1.8 HYDROGEOLOGY 41
CONCLUSIONS 45
PART-2 MECHANISMS OF GROUNDWATER
RECHARGE ANALYZED BASED
ON PHYSICAL
MEASUREMENTS 49
2.1 INTRODUCTION 49
2.2 METHOD AND MATERIALS 52
2.3 RESULTS AND DISCUSSION 54
2.3.1 INFERENCE OF RECHARGE MECHANISMS
FROM
IN-SITU MEASURED
WATER PROPERTIES 54
2.4 CONCLUSIONS 75
HTTP://D-NB.INFO/1069606812
PART-3 HYDROCHEMICAL
AND ENVIRONMENTAL STABLE
ISOTOPES IN RELATION TO RECHARGE.79
3.1 INTRODUCTION 79
3.2 METHODS AND MATERIALS 82
3.2.1 SAMPLING AND ANALYSIS 82
3.2.2 HIERARCHICAL CLUSTER ANALYSIS 84
3.2.3 ANALYSIS OF CALCULATED SLOPES OF 'WATER-LINES'
PERTAINING TO
THE PROCESS OF RECHARGE 85
3.3 RESULTS AND DISCUSSION 86
3.3.1 EVALUATION OF CLUSTERS 91
3.3.2 GENERAL TRENDS OF SALINITY OF GROUNDWATER IN
THE STUDY
AREA 103
3.3.3 CALCULATED SLOPES OF 'WATER-LINES'
PERTAINING TO THE
PROCESS OF RECHARGE
106
3.4 CONCLUSIONS 112
PART
- 4 EVALUATION OF RECHARGE
RATES USING
CONVENTIONAL METHODS
AND A NEW
APPROACH 116
4.1 INTRODUCTION 116
4.2 METHODS AND MATERIALS 118
BASIN
ATTRIBUTES
THAT
INFLUENCE
RATE
OF GROUNDWATER RECHARGE 118
WATER TABLE
FLUCTUATION
(WTF) METHOD 120
STREAM
CHANNEL
LOSS
(SCL) METHOD 122
RECESSION-CURVE
DISPLACEMENT (BFR-RORA)
METHOD 123
BASEFLOW SEPARATION
WITH
HYSEP (BFS-HYSEP) METHOD 124
CATCHMENT
WATER
BALANCE
(C-WB) METHOD 124
THORNTHWAITE-MATHER
WATER
BALANCE (TM-WB)
METHOD 125
CHLORIDE-MASS-BALANCE (CMB) METHOD 126
DEVELOPMENT OF A
NEW
METHOD 128
4.3 RESULTS AND DISCUSSION 131
4.3.1 ESTIMATES OF BASIN
ATTRIBUTES OF THE DIFFERENT SECTIONS 131
4.3.2 EVALUATION OF RECHARGE
RATES OBTAINED
FROM
DIFFERENT METHODS 132
4.3.3 CHANGES OF RECHARGE RATES
ESTIMATES BASED ON EXISTING METHODS
IN RESPONSE TO CHANGES
OF BASIN ATTRIBUTES 135
HYDROCHEMICAL CLUSTERS AND RECHARGE RATE 139
4.3.4 A NEW METHOD BASED ON EVALUATION OF RECHARGE
RATES AND ASSOCIATED
ATTRIBUTES 142
4.4 CONCLUSIONS 146
5 SYNTHESIS 148
REFERENCES 156
ANNEXES
173 |
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| indexdate | 2024-08-10T00:42:04Z |
| institution | BVB |
| language | English |
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| physical | VIII, 185 S. Ill., graph. Darst., Kt. 30 cm |
| publishDate | 2015 |
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| spelling | Damtew, Aychluhim D. Verfasser (DE-588)1015709036 aut Source, mechanism, and rate of groundwater recharge in the south-western part of the Main Ethiopian Rift, East Africa Aychluhim D. Damtew Bochum Univ., Selbstverl. Inst. für Geologie, Mineralogie und Geophysik 2015 VIII, 185 S. Ill., graph. Darst., Kt. 30 cm txt rdacontent n rdamedia nc rdacarrier Bochumer geowissenschaftliche Arbeiten 22 Literaturangaben Zugl.: Bochum, Univ., Diss., 2015 Grundwasserbildung (DE-588)4191698-0 gnd rswk-swf Äthiopien (DE-588)4000639-6 gnd rswk-swf (DE-588)4113937-9 Hochschulschrift gnd-content Äthiopien (DE-588)4000639-6 g Grundwasserbildung (DE-588)4191698-0 s DE-604 Bochumer geowissenschaftliche Arbeiten 22 (DE-604)BV014391359 22 DNB Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027948564&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Damtew, Aychluhim D. Source, mechanism, and rate of groundwater recharge in the south-western part of the Main Ethiopian Rift, East Africa Bochumer geowissenschaftliche Arbeiten Grundwasserbildung (DE-588)4191698-0 gnd |
| subject_GND | (DE-588)4191698-0 (DE-588)4000639-6 (DE-588)4113937-9 |
| title | Source, mechanism, and rate of groundwater recharge in the south-western part of the Main Ethiopian Rift, East Africa |
| title_auth | Source, mechanism, and rate of groundwater recharge in the south-western part of the Main Ethiopian Rift, East Africa |
| title_exact_search | Source, mechanism, and rate of groundwater recharge in the south-western part of the Main Ethiopian Rift, East Africa |
| title_full | Source, mechanism, and rate of groundwater recharge in the south-western part of the Main Ethiopian Rift, East Africa Aychluhim D. Damtew |
| title_fullStr | Source, mechanism, and rate of groundwater recharge in the south-western part of the Main Ethiopian Rift, East Africa Aychluhim D. Damtew |
| title_full_unstemmed | Source, mechanism, and rate of groundwater recharge in the south-western part of the Main Ethiopian Rift, East Africa Aychluhim D. Damtew |
| title_short | Source, mechanism, and rate of groundwater recharge in the south-western part of the Main Ethiopian Rift, East Africa |
| title_sort | source mechanism and rate of groundwater recharge in the south western part of the main ethiopian rift east africa |
| topic | Grundwasserbildung (DE-588)4191698-0 gnd |
| topic_facet | Grundwasserbildung Äthiopien Hochschulschrift |
| url | http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=027948564&sequence=000001&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA |
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