Call number:
AWI G8-20-93468
Type of Medium:
Dissertations
Pages:
XIII, 151, A28 Seiten
,
Illustrationen, Diagramme, Karten
URL:
https://d-nb.info/1162860308/04
Language:
English
Note:
Table of contents
Abstract
Zusammenfassung
Abbreviations and Nomenclature
1. Introduction
1.1 Scientific Background
1.1.1 Climate and Permafrost
1.1.2 Remote Sensing
1.1.3 Research Questions
1.2 General Approach
1.3 Thesis Structure
1.4 Author’ s contributions
1.4.1 Chapter 2
1.4.2 Chapter 3
1.4.3 Chapter 4
1.4.4 Chapter 5
1.4.5 Appendix Paper 1
2. Detection of landscape dynamics in the Arctic Lena Delta withtemporally dense Landsat time-series Stacks
2.1 Abstract
2.2 Introduction
2.3 Study Area and Data
2.3.1 Study Area
2.3.2 Data
2.3.3 Methods/processing
2.4 Results
2.4.1 Regional Scale changes
2.4.2 Local scale changes
2.5 Discussion
2.5.1 Regional scale changes
2.5.2 Local scale changes
2.5.3 Data quality
2.5.4 Data usage and outlook
2.6 Conclusion
2.7 Data Archive
2.8 Acknowledgements
2.9 Appendix A. Supplementary Data
3. Landsat-Based Trend Analysis of Lake Dynamics across NorthernPermafrost Regions
3.1 Abstract
3.2 Introduction
3.3 Study Sites
3.3.1 Alaska North Slope (NSL)
3.3.2 Alaska Kobuk-Selawik Lowlands (AKS)
3.3.3 Central Yakutia (CYA)
3.3.4 Kolyma Lowland (KOL)
3.4 Data and Methods
3.4.1 Data and Trend Analysis
3.4.2 Pixel-Based Machine-Leaming Classification
3.4.3 Object-Based Image Analysis
3.4.4 Data Quality and Post-Processing
3.4.5 Calculation of Lake Change Statistics
3.5 Results
3.5.1 NSL (Alaska North Slope)
3.5.2 AKS (Alaska Kobuk-Selawik Lowlands)
3.5.3 CYA (Central Yakutia)
3.5.4 KOL (Kolyma Lowland)
3.6 Discussion
3.6.1 Data Analysis
3.6.2 Comparison of Sites and Prior Studies
3.7 Conclusions
3.8 Supplementary Materials
3.9 Acknowledgements
3.10 Appendix A
4. Remotely sensing recent permafrost region disturbances across Arcticto Subarctic transects
4.1 Abstract
4.2 Introduction
4.3 Results
4.3.1 Lakes
4.3.2 Retrogressive Thaw Slumps
4.3.3 Wildfire
4.4 Discussion
4.5 Methods
4.5.1 Remote Sensing Data Processing
4.5.2 Auxiliary Data Sources
5. Tundra landform and Vegetation productivity trend maps for theArctic Coastal Plain of northern Alaska
5.1 Abstract
5.2 Background & Summary
5.3 Methods
5.3.1 Polygonal tundra geomorphology mapping
5.3.2 Image processing
5.3.3 Image Classification
5.3.4 Decadal scale NDVI trend analysis
5.4 Data Records
5.5 Technical Validation
5.5.1 Tundra Geomorphology Map
5.5.2 NDVI Trend Map
5.6 Data Citation
6. Discussion/Synthesis
6.1 Landsat-based trend analysis
6.1.1 Spatial Scale
6.1.2 Time series analysis
6.1.3 Model complexity
6.2 Mapping of permafrost landscape dynamics
6.2.1 Lake dynamics
6.2.2 Wildfire
6.2.3 Retrogressive Thaw Slumps
6.3 Pan-arctic scale distribution and consequences of changes inpermafrost
6.4 Outlook
Bibliography
A-1. Appendix: Reduced arctic tundra productivity linked with landform and climate change interactions
A-1.1 Abstract
A-1.2 Introduction
A-1.3 Methods
A-1.4 Results
A-1.5 Discussion
Danksagung/Acknowledgements
Eidesstattliche Erklärung
Location:
AWI Reading room
Branch Library:
AWI Library
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