Refine
Year of publication
- 2018 (310) (remove)
Document Type
- Article (237)
- Doctoral Thesis (22)
- Postprint (20)
- Other (17)
- Review (10)
- Habilitation Thesis (2)
- Conference Proceeding (1)
- Master's Thesis (1)
Language
- English (310) (remove)
Is part of the Bibliography
- yes (310) (remove)
Keywords
- climate change (8)
- Himalaya (7)
- permafrost (6)
- Germany (4)
- landslides (4)
- Climate change (3)
- Kalahari (3)
- Naturgefahren (3)
- Palynology (3)
- Quaternary (3)
- natural hazards (3)
- Accuracy Assessment (2)
- Acidithiobacillus (2)
- Acidothermus (2)
- Arctic (2)
- Argentine margine (2)
- Australia (2)
- CDOM (2)
- Chile (2)
- Climate (2)
- Code_Aster (2)
- Digital Elevation Models (2)
- Earthquake hazards (2)
- Earthquake source observations (2)
- European basin system (2)
- Fernerkundung (2)
- Firmicutes (2)
- Gemmatimonadetes (2)
- Glacier Mass Balances (2)
- Gravel-bed (2)
- Halobacteria (2)
- Holocene (2)
- Klimaänderung (2)
- Liguride Complex (2)
- Microbial abundance (2)
- NW Argentina (2)
- Nevado Coropuna (2)
- North Calabrian Unit (2)
- Northern Andes (2)
- Paleoclimatology (2)
- Paleogeography (2)
- Permafrost (2)
- Pollen (2)
- River (2)
- Sediment Flux (2)
- Seismicity and tectonics (2)
- Sentinel-1 (2)
- South America (2)
- South American Monsoon (2)
- Southern Apennines (2)
- Structure-from-motion (2)
- Time-series analysis (2)
- Topography (2)
- Western Central Africa (2)
- Yamal (2)
- acidophilic microorganisms (2)
- chemical-mechanical interaction (2)
- climate (2)
- coherence (2)
- composite properties (2)
- cosmogenic nuclides (2)
- deep biosphere (2)
- digital rock physics (2)
- dynamics (2)
- elastic properties (2)
- event synchronization (2)
- gabbros (2)
- geophysics (2)
- grain size (2)
- karst (2)
- komplexes Netzwerk (2)
- lake (2)
- lake catchments (2)
- lakes (2)
- lower crustal bodies (2)
- micro-CT (2)
- modeling (2)
- natural dams (2)
- north-atlantic (2)
- numerical simulation (2)
- ophiolite (2)
- paleo-sediment (2)
- paleoclimate (2)
- potentially affected areas (PAA) (2)
- radiogenic heat-production (2)
- rapid damage mapping (2)
- remote sensing (2)
- remote sensing data (2)
- rock glaciers (2)
- saline pan (2)
- sedimentary basins (2)
- stable isotopes (2)
- subsidence (2)
- subsidence analysis (2)
- tectonic evolution (2)
- temperature (2)
- thermal field (2)
- vegetation (2)
- vertical coupling (2)
- voring basin (2)
- 3D printing (1)
- 40Ar/39Ar (1)
- 7924 (1)
- 7934 (1)
- 7959 (1)
- ABSH-system (1)
- ARCH (1)
- ARIMA (1)
- Acadian (1)
- Acidobacteriaceae (1)
- Acidobactetiaceae (1)
- Adaptability (1)
- Adaptation (1)
- Advanced scatterometer (ASCAT) (1)
- Affordability (1)
- African Humid Period (1)
- Agrobacterium tumefaciens (1)
- Alkaline igneous rocks (1)
- Alpine Fault (1)
- Alps (1)
- Altai Mountains (1)
- Altersdatierung mit kosmogenen Nukliden (1)
- Altyn Tagh Fault (1)
- Analog material (1)
- Anatexis (1)
- Anatolia westward motion (1)
- Andes (1)
- Antarctica (1)
- Aquifer thermal energy storage (ATES) (1)
- Ar-40/Ar-39 (1)
- Ar-40/Ar-39 dating (1)
- Arabia-Eurasia collision (1)
- Arbuscular mycorrhizal fungi (AMF) (1)
- Arctic Siberia (1)
- Arctic tundra ecosystems (1)
- Argentina (1)
- Argentinien (1)
- Aridity gradient (1)
- Arktis (1)
- Armenia (1)
- Asthenospheric fluid (1)
- Ataturk Dam Lake (1)
- Atmospheric chemistry (1)
- Atmospheric dynamics (1)
- Atmospheric science (1)
- Auenbereich (1)
- Authigenic mineral formation (1)
- Authigenic mineral transformation (1)
- Basalt-Vulkane (1)
- Batch experiments (1)
- Bayes (1)
- Bayesian Network (1)
- Bayesian logistic regression (1)
- Bayesische Statistik (1)
- Benefits (1)
- Beringia (1)
- Bet-hedging germination (1)
- Biomarker (1)
- Bivalvia (1)
- Black shales (1)
- Blockgletscher (1)
- Bodenbewegungsmodelle (1)
- Bodenunruhe (1)
- Body waves (1)
- Bolivia (1)
- Boreal ecosystems (1)
- Boundary line analysis (1)
- Brachypodium hybridum (1)
- Brahmaputra River (1)
- Braunsbach Sturzflut (1)
- Braunsbach flash flood (1)
- Brittle deformation (1)
- Bulfat (1)
- C and O K-edge spectra (1)
- Canadian Beaufort Sea (1)
- Carbon dioxide (1)
- Carbon isotope ratio (delta C-13(TOC)) (1)
- Catchment wetness (1)
- Cenral Andes (1)
- Central Asia (1)
- Central Europe (1)
- Central Pontides (1)
- Change detection (1)
- Change point analysis (1)
- Change points (1)
- Changing World (1)
- China (1)
- Chota formation (1)
- Climate Change (1)
- Climate variability (1)
- Complex network (1)
- Continuous temperature logging (1)
- Convergent margins (1)
- Cooling and unroofing history (1)
- Coordination failure (1)
- Coping appraisal (1)
- Coseismic rupture (1)
- Cosmic-ray neutrons (1)
- Cretaceous (1)
- Crustal stretching style (1)
- DEM (1)
- DIN EN 1998-1/NA (1)
- Dansgaard-Oeschger cycles (1)
- Database (1)
- Datenbearbeitung (1)
- Death Valley (1)
- Debris avalanche deposit (1)
- Debris flow (1)
- Deformation (1)
- Density dependence (1)
- Denudation (1)
- Deposition (1)
- Direct economic loss (1)
- Disturbance index (1)
- Divergent mantle flow (1)
- Dora-Maira (1)
- Dormancy (1)
- Downholemethods (1)
- Drought indices (1)
- EXAFS (1)
- Eastern Karoo Basin (1)
- Ecological vulnerability (1)
- Ecosystem response (1)
- Ecosystem services (1)
- Ecuador (1)
- Eemian (1)
- Eger Rift (1)
- Einzugsgebietshydrologie (1)
- El Nino Southern Oscillation (ENSO) (1)
- Elbe (1)
- Electrical resistivity tomography (ERT) (1)
- Electromagnetics (1)
- Elymus trachycaulus (1)
- Emergence time (1)
- Empirical site amplification functions (1)
- Enstatite (1)
- Environmental impact (1)
- Environmental vulnerability (1)
- Ereignissynchronisation (1)
- Euler-Liouville (1)
- Eurasian Dry Grassland Group (EDGG) (1)
- European Centre for Medium-Range Weather Forecasts (ECMWF) (1)
- European Vegetation Archive (EVA) (1)
- European strong motion data (1)
- Event Koinzidenz Analyse (1)
- Event synchronization (1)
- Extension (1)
- Extreme discharge data (1)
- Extreme event (1)
- FGF23 (1)
- FTIR (1)
- Fault healing (1)
- Fault-rock microstructures (1)
- Feldspat (1)
- Final run (1)
- Flash flood (1)
- Flash flood analysis (1)
- Flood (1)
- Flood regimes (1)
- Flood risk (1)
- Flood timing (1)
- Flowback (1)
- Fluid inclusions (1)
- Fluid-rock interaction (1)
- Flussprozesse (1)
- Flussterrassen (1)
- Forensic disaster analysis (1)
- Forest-savannah (1)
- Fourier analysis (1)
- Functions (1)
- Fuzzy classification (1)
- Fuzzy logic (1)
- GAIA (1)
- GMPE adjustment (1)
- GNSS Reflectometry (1)
- GNSS forward scatterometry (1)
- GNSS reflectometry (1)
- Gehyra variegata (1)
- Geochemistry (1)
- Geochronology (1)
- Geodynamics (1)
- Geodynamik (1)
- Geologie (1)
- Geomechanical modelling (1)
- Geomorphologie (1)
- Geomorphology (1)
- Geophysical prospecting (1)
- Geothermal applications in Oman (1)
- Gerinnemorphologie (1)
- Glacial geomorphology (1)
- Glacial lake (1)
- Glacier foreland (1)
- Gletscher (1)
- Global precipitation measurement (1)
- Gondwana (1)
- Gongjue basin (1)
- Grabenbruch (1)
- GrassPlot (1)
- Gravitational potential energy (1)
- Gravity inversion (1)
- Green investment (1)
- Green surge (1)
- Gridded rainfall (1)
- Ground Motion Prediction Equation (1)
- Ground motion (1)
- Ground motion prediction equation (1)
- Ground squirrel nest (1)
- Hail (1)
- Halophile (1)
- Hanghydrologie (1)
- Hangrutschungen (1)
- Harran Plain (1)
- Hazard (1)
- He thermochronology (1)
- Heteroscedasticity (1)
- High Asia (1)
- High Mountain Asia (1)
- High-Grade Metamorphism (1)
- Himalaja (1)
- Hindu Kush Himalayas (HKH) (1)
- Hochdurchsatzsequenzierung (1)
- Holozän (1)
- Hydrogeomorphic type (1)
- Hydrological time series analysis (1)
- Hyetograph classification (1)
- IAPETUS suture (1)
- Illitization (1)
- Imaging (1)
- Imputation (1)
- In situ Raman spectroscopy (1)
- Insurance (1)
- Integrated environmental modelling (1)
- Integrated modelling (1)
- Inter-Andean valley (1)
- Interdisciplinarity (1)
- Interdisciplinary links (1)
- Intraplate earthquakes (1)
- Intraplate processes (1)
- Inverse Theory (1)
- Invertebrates (1)
- Ionosphere (1)
- Iran (1)
- Iraq (1)
- Island arc (1)
- JULIA (1)
- Japan subduction zone (1)
- Jurassic arc (1)
- Kanas Lake (1)
- Kaya Identity (1)
- Kazakhstan (1)
- Kettle holes (1)
- Kinematics of crustal (1)
- Klimarekonstruktion (1)
- Klimawandel (1)
- Klotho (1)
- Kumamoto Erdbeben (1)
- Kumamoto earthquake (1)
- LIA (1)
- LM (1)
- La Pampa (1)
- Lake Magadi (1)
- Lake Van (1)
- Lakes (1)
- Land and water (1)
- Land cover maps (1)
- Land use (1)
- Landform assemblages (1)
- Landnutzungsänderung (1)
- Landsat (1)
- Landsat time-series (1)
- Landslide (1)
- Landslides (1)
- Laptev Sea region (1)
- Last cold stage (1)
- Late Pleistocene (1)
- Lavafontänen (1)
- Lena delta (1)
- Lichenometrie (1)
- Local structure Yttrium, Strontium, Lanthanum (1)
- Loess (1)
- Loss modelling (1)
- Lotus corniculatus (1)
- Lower crustal flow (1)
- Lumineszenz (1)
- MCA (1)
- MHT (1)
- MIT (1)
- MRD (1)
- MWAC (1)
- Magnetic+Susceptibility (1)
- Magnetostratigraphy (1)
- Magnetotellurik (1)
- Mahalanobis distance (1)
- Mahalanobis-Distanz (1)
- Markov Blanket (1)
- Mass transport (1)
- Measurement uncertainty (1)
- Mediterranean (1)
- Mediterranean Sea (1)
- Metapelites (1)
- Metasomatism (1)
- Methane (1)
- Method comparison (1)
- Mineralization (1)
- Missing data (1)
- Mixed-effects regression (1)
- Mixmodelle (1)
- Model coupling (1)
- Model-data comparison (1)
- Modeling (1)
- Modellanpassung (1)
- Modellierung (1)
- Modern analogues (1)
- Monsoon (1)
- Mountain building (1)
- Mt. Quincan (1)
- Multifunctionality (1)
- Multiple regression (1)
- Multiskalen Netzwerk (1)
- NAC transcription factor ATAF1 (1)
- NE Pamir (1)
- NOR (1)
- Namche Barwa (1)
- Namche Barwa syntaxis (1)
- Nanogranitoids (1)
- NatRiskChange (1)
- Natural Hazards (1)
- Natural hazards (1)
- Natürliche Staudämme (1)
- Near+Surface (1)
- Neoacadian orogenic cycles (1)
- Neotethys (1)
- Neotropics (1)
- Nepal (1)
- Niger River Basin (1)
- Nordic catchments (1)
- North America (1)
- North Atlantic forcing (1)
- Northeast of Brazil (1)
- Northern Asia (1)
- Northern Tibetan Plateau (1)
- Northern Zagros Suture Zone (NZSZ) (1)
- Nuklide (1)
- Numerical modelling (1)
- Nährstoffe (1)
- Nährstoffretention (1)
- OSL (1)
- Ocean tidal model (1)
- Oman (1)
- OpenStreetMap (1)
- Ophiolite (1)
- Optical methods (1)
- Orai1 (1)
- Organic geochemistry (1)
- PLA (1)
- PT pseudosection (1)
- Pacific-Asia convergence (1)
- Palaeo-vegetation (1)
- Palaeoenvironmental reconstruction (1)
- Palaeotropics (1)
- Paleobiogeography (1)
- Paleoclimate (1)
- Paleoseismology (1)
- Paläoklima (1)
- Pamir (1)
- Paratethys (1)
- Pargasite (1)
- Paris-Edinburgh press (1)
- Parlung River (1)
- Participation (1)
- Passive Microwave (1)
- Patagonian Ice Sheet (1)
- Pebas/Acre system (1)
- Peclet number (1)
- Pedestal moraine (1)
- Pedogenic carbonate nodules (1)
- Performance (1)
- Peri-urban agriculture (1)
- Petrography (1)
- Physical rock properties (1)
- Plant macrofossils (1)
- Plate tectonics (1)
- Plattentektonik (1)
- Pollen trap (1)
- Ponds (1)
- Potassium (1)
- Power-to-Gas (1)
- Principal component analysis (1)
- Provenance (1)
- Pseudoleucite (1)
- Public policy (1)
- QBO (1)
- Quaternary climate change (1)
- Quaternary maar volcanism (1)
- Quaternary terraces (1)
- Radar rainfall data (1)
- Radioactivity (1)
- Radiogenic isotopes (1)
- Radiokarbondatierung (1)
- Rainfall event (1)
- Rainfall network (1)
- Rainfall-triggered landslide (1)
- Raman spectroscopy (1)
- Random Forest (1)
- Rb-Sr mineral isochron (1)
- Recurrence plot (1)
- Reflectance spectroscopy (1)
- Reflexionsseismik (1)
- Relative dating (1)
- Remote sensing (1)
- Renewable energy (1)
- Research needs (1)
- Reservoir network (1)
- Residual analysis (1)
- Resilience (1)
- Review (1)
- Ring complex (1)
- Rio Grande (1)
- Risk dominance (1)
- Riskspreading (1)
- River flow (1)
- Rock-Eval pyrolysis (1)
- Rodinia (1)
- Romania (1)
- Root morphology (1)
- SAR (1)
- SEM (1)
- SMI (1)
- SSW (1)
- SWAT (1)
- SWIM (1)
- Salinic (1)
- Savanna (1)
- Schadensmodellierung (1)
- Schnee (1)
- Schwemmfächer (1)
- Sediment load (1)
- Sediment retention (1)
- Sediment tails (1)
- Sedimentary basin (1)
- Sedimenttransportsystem (1)
- Seed competition (1)
- Seespiegelschwankungen (1)
- Seismic attenuation (1)
- Seismic hazard (1)
- Seismic imaging (1)
- Seismic interferometry (1)
- Seismic load parameters (1)
- Seismic network (1)
- Seismic noise (1)
- Seismicity (1)
- Seismicity and tectonic (1)
- Seismology (1)
- Semiarid catchment (1)
- Sensitivity analysis (1)
- Shear zones (1)
- Shore vegetationa (1)
- Siberia (1)
- Siberian larch (1)
- Siderite (1)
- Signalweiterleitung (1)
- Silicate- carbonate melts/glasses (1)
- Single station sigma (1)
- Site classification (1)
- Site effects (1)
- Site response (1)
- Siwaliks (1)
- Slope exposure (1)
- Snow (1)
- Soil C- and N stocks (1)
- Soil microorganisms (1)
- Soil moisture (1)
- Soil process modelling (1)
- Soil respiration (1)
- Soil texture (1)
- Soil water balance (1)
- Soil water variability (1)
- Southern Ethiopian Rift (1)
- Spalteneruption (1)
- Spatial coherence (1)
- Spectral clustering analysis (1)
- Sporopollenin (1)
- Sr-Nd-Pb isotopes (1)
- Stag hunt (1)
- Stakeholder (1)
- Statistical Methods (1)
- Steppe-desert (1)
- Storm (1)
- Strategic uncertainty (1)
- Stress tensor (1)
- Subduction zone processes (1)
- Subsurface energy storage (1)
- Supercontinent breakup (1)
- Supercontinent cycle (1)
- Supra-subduction zone (1)
- Surface waves and free oscillations (1)
- Sustainable cities (1)
- Synchronisation von Ereignissen (1)
- Synthetic pyroxene (1)
- Südamerika (1)
- TDS-1 (1)
- TIME-GCM (1)
- TIN (1)
- TL of feldspar (1)
- TL-thermochronology (1)
- TLS (1)
- Taifune (1)
- Tarim Basin (1)
- Tasseled Cap transformation (1)
- TechDemoSat-1 (TDS-1) (1)
- Tectonic geomorphology (1)
- Tectonic stress (1)
- Temperature (1)
- Temporal spread (1)
- The northern margin of the South China Sea (1)
- Thermochronologie (1)
- Thermochronology (1)
- Tian Shan piedmont (1)
- Tian shan (1)
- Tibet (1)
- Tillage erosion (1)
- Total organic carbon (1)
- Tracer (1)
- Tropical high mountains (1)
- Tropical lake (1)
- U/Pb dating of titanite (1)
- UAS (1)
- Uncertainty (1)
- Uncertainty analysis (1)
- Unconventional gas production (1)
- Underground gas storage (1)
- Unsicherheiten (1)
- Urban CO2 emissions (1)
- Urban Kaya relation (1)
- Urban learning lab (1)
- Urban scaling (1)
- VIIRS DNB (1)
- VLBI analysis (1)
- Van Krevelen diagram (1)
- Vansee (1)
- Variability (1)
- Vegetation (1)
- Vegetation-climate disequilibrium (1)
- Vertisol genesis (1)
- Videoanalyse (1)
- Volcanic collapse (1)
- Volume reconstruction (1)
- Vulkaniklastika (1)
- Vulkanologie (1)
- Wassergütemodellierung (1)
- Water management (1)
- Water quality (1)
- Water storage dynamic (1)
- Wave propagation (1)
- Wavelet (1)
- Weathering (1)
- Western Africa (1)
- White mica Ar-40/ Ar-39 spot ages (1)
- Wind erosion (1)
- Younger Dryas (1)
- Yucatan Peninsula (1)
- Yukon (1)
- Z-P approach (1)
- Zentralanden (1)
- Zeolites (1)
- accumulation (1)
- active continental margin (1)
- active source data (1)
- age class forest (1)
- age-elevation relationships (1)
- aktive Quelldaten (1)
- alaskan tundra (1)
- alluvial (1)
- alluvial channel morphology (1)
- alluvial fans (1)
- analysis (1)
- and Granite Magmatism (1)
- annually laminated sediments (1)
- arctic (1)
- arctic tundra (1)
- area (1)
- argentina (1)
- artefact avoidance (1)
- artificial light at night (1)
- assimilation (1)
- attribution (1)
- barrow (1)
- basaltic volcanoes (1)
- beaver (1)
- behavioral adaptation (1)
- biodiversity (1)
- biogeochemistry (1)
- biomarker (1)
- biomaterials (1)
- body condition (1)
- body growth rate (1)
- calcium (1)
- calcium phosphate (1)
- calcium phosphate hybrid material (1)
- carbon dioxide (1)
- carbon dioxide exchange (1)
- catchment hydrology (1)
- cellulose (1)
- central Andean foreland (1)
- charcoal (1)
- chemical weathering (1)
- chitosan (1)
- circulation (1)
- climate extreme events (1)
- climate global and local patterns (1)
- climate impacts (1)
- climate reconstruction (1)
- climate-change (1)
- climatology (1)
- coast (1)
- coastal erosion (1)
- coexistence (1)
- collapse (1)
- competition-defense trade-off (1)
- complex network (1)
- complex networks (1)
- concentration (1)
- core flow (1)
- cosmogenic (1)
- cosmogenic AL-26 (1)
- cosmogenic nuclide dating (1)
- cross-calibration (1)
- crustal density structure (1)
- damage modeling (1)
- data archeology (1)
- data processing (1)
- data scarcity (1)
- decompression (1)
- deep crust (1)
- deep permafrost carbon (1)
- defense against predation (1)
- degradation (1)
- depletion amplitude (1)
- detrital geochronology and thermochronology (1)
- diatom indicator species (1)
- differential split-sample test (1)
- dip-coating (1)
- dissolution (1)
- dissolved silica concentration (1)
- downscaling (1)
- drainage networks (1)
- drought stress (1)
- dumortierite (1)
- duplex (1)
- early Holocene (1)
- earth system models (1)
- earthquake (1)
- earthquakes (1)
- eastern Qiangtang terrane (1)
- ecological genetics (1)
- ecological modelling (1)
- economic impacts (1)
- ecosystems (1)
- elastic geobarometry (1)
- electromagnetic (1)
- electromagnetic scattering (1)
- elevated CO2 (1)
- elevated CO2 concentration (1)
- equatorial electrojet (1)
- equatorial electrojet (EEJ) (1)
- equatorial ionosphere (1)
- equatorial plasma depletion (1)
- equifinality (1)
- erosion rates (1)
- erosion-climate link (1)
- evapotranspiration (1)
- event coincidence analysis (1)
- events (1)
- evolution (1)
- exhumation (1)
- extreme Ereignisse (1)
- extreme Klimaereignisse (1)
- extreme events (1)
- fan (1)
- fault (1)
- feldspar (1)
- fission track thermochronology (1)
- fissure eruption (1)
- flood generating processes (1)
- flood loss (1)
- flood seasonality (1)
- floods (1)
- flow accumulation (1)
- fluid flow and thermal modelling (1)
- fluids (1)
- fluvial fill terraces (1)
- fluvial geomorphology (1)
- fluvial response (1)
- foreland basin (1)
- fracking (1)
- functional response (1)
- gas production (1)
- gelatin (1)
- geo-bio interaction (1)
- geodynamics (1)
- geohazards (1)
- geology (1)
- geomorphology (1)
- geo–bio interaction (1)
- glacial buzzsaw (1)
- glacial equilibrium (1)
- glacial erosion (1)
- glacial geomorphology (1)
- glacier chemistry (1)
- glacierized basins (1)
- glaciers (1)
- globale und lokale Muster des Klimas (1)
- grassland vegetation (1)
- gravity modeling (1)
- gross primary production (1)
- ground ice (1)
- ground motion (1)
- ground motion prediction equations (1)
- ground-motion models (1)
- growing season (1)
- half-life (1)
- halophiles (1)
- hazard (1)
- high latitudes (1)
- hillslope hydrology (1)
- hillslopes (1)
- hominins (1)
- human activity (1)
- human settlement (1)
- hydro-meteorological risk (1)
- hydro-meteorologische Risiken (1)
- hydrogel (1)
- hydrograph partitioning curves (1)
- hydrologic modeling (1)
- hydrological modelling (1)
- hydrology (1)
- hydropower (1)
- hyperaridity (1)
- hyporheic zone (1)
- hyporheische Zone (1)
- hypothetical trend (1)
- hysteresis (1)
- ice (1)
- impacts (1)
- in-stream processes (1)
- inclination shallowing (1)
- inclusions (1)
- indirect facilitation (1)
- induced chlorophyll Fluorescence (1)
- induced seismicity (1)
- industrial ecology (1)
- input-output (I-O) analysis (1)
- interannual variability (1)
- introgression (1)
- inversion tectonics (1)
- ionospheric irregularities (1)
- isotopic composition (1)
- kokchetavite (1)
- kosmogen (1)
- kosmogene Nuklide (1)
- kumdykolite (1)
- lacustrine record (1)
- lake Meerfelder Maar (1)
- lake basins (1)
- lake-level change (1)
- lakustrine Abfolge (1)
- land use change (1)
- land-use intensity (1)
- landscape evolution (1)
- larch species (1)
- late Holocene (1)
- lateral fluxes (1)
- latitude ionosphere (1)
- lava fountains (1)
- length of day (1)
- lichenometry (1)
- lidar (1)
- light pollution (1)
- lithium-ion battery electrolyte (1)
- lithology (1)
- loading conditions (1)
- localization (1)
- lower thermosphere (1)
- luminescence dating (1)
- lunar tide (1)
- macroecology (1)
- magnesiodumortierite (1)
- magnetic field (1)
- magnetic polarisation direction (1)
- magnetic surveying (1)
- magnetische Polarisationsrichtung (1)
- magnetotellurics (1)
- mantle deformation (1)
- marble (1)
- maximum magnitude (1)
- meadow (1)
- metal recycling plants (1)
- microbes (1)
- microbiology (1)
- microtopography (1)
- middle atmosphere (1)
- mineral deposits (1)
- minirhizotron (1)
- mitochondrial haplotypes (1)
- mixture models (1)
- model (1)
- model calibration (1)
- model enhancement (1)
- modelling (1)
- moraine (1)
- multi-taxon (1)
- multi-thermochronometer (1)
- multiscale network (1)
- nanogranitoids (1)
- natural hazard (1)
- nested plot (1)
- net ecosystem exchange (1)
- next generation sequencing (1)
- night lights (1)
- non-resonant inelastic X-ray scattering (1)
- northern seward peninsula (1)
- nuclides (1)
- nutrient retention (1)
- nutrients (1)
- ocean surface (1)
- oceanic transform and fracture zone processes (1)
- optical cell (1)
- organic carbon (1)
- oxygen isotope (1)
- pH (1)
- palaeoclimate records (1)
- palaeoecology (1)
- paleoaltimetry (1)
- paleohydrology (1)
- paleolimnology (1)
- paleomagnetism (1)
- parameter emulation (1)
- parathyroid hormone (1)
- partial melting (1)
- pasture (1)
- phase space time delay embedding reconstruction (1)
- phosphate (1)
- picoseismicity (1)
- planetary waves (1)
- plant ecology (1)
- plant transformation (1)
- plasma drifts (1)
- plate tectonics (1)
- point clouds (1)
- pollution indices (1)
- poly(lactic acid) (1)
- polymorphs (1)
- population dynamics (1)
- population recovery (1)
- population size (1)
- postmidnight (1)
- potentially toxic elements (1)
- pre-Maya settlement (1)
- precipitation reconstruction (1)
- predator-prey cycles (1)
- prediction (1)
- prediction uncertainty (1)
- probabilistic approach (1)
- probabilistischer Ansatz (1)
- process life cycle assessment (1)
- processes and landforms of glacial erosion (1)
- production rate (1)
- production rates (1)
- protection motivation theory (PMT) (1)
- proxy calibration (1)
- radio science (1)
- radio wave propagation (1)
- radiocarbon (1)
- radiocarbon age dating (1)
- rain detection (1)
- rain splash (1)
- rainforest crisis (1)
- range shifts (1)
- reanalysis (1)
- record (1)
- redox reactions (1)
- reflection (1)
- reflection seismics (1)
- release (1)
- relief development (1)
- restoration (1)
- rifting (1)
- riparian zone (1)
- risk communication (1)
- river incision (1)
- rock exhumation (1)
- rock mass (1)
- rock uplift-relief scaling (1)
- root biomass (1)
- root density (1)
- root lengths density (1)
- root penetration (1)
- rotation (1)
- runoff (1)
- sPlot (1)
- salmon (1)
- salt dissolution (1)
- scale (1)
- scale-dependence (1)
- scaling relation (1)
- sea level (1)
- sea level rise (1)
- sediment (1)
- sediment flux (1)
- sediment supply (1)
- sediment transport (1)
- sediment yield (1)
- sediment-routing system (1)
- seismic attenuation (1)
- seismic noise (1)
- seismic tomography (1)
- seismische Dämpfung (1)
- seismische Tomographie (1)
- seismogene Kopplungszone (1)
- seismogenic coupling zone (1)
- seismomechanics (1)
- self-similarity (1)
- sensitivity analyses (1)
- service sectors (1)
- shaking (1)
- shoreline (1)
- shrub expansion (1)
- signal propagation (1)
- simulation (1)
- slags (1)
- snow (1)
- snow melt (1)
- social vulnerability (1)
- soil erosion (1)
- soil horizonation (1)
- soil moisture (1)
- soils (1)
- source parameters (1)
- spatial-distribution (1)
- species-area relationship (SAR) (1)
- speleothem (1)
- speleothems (1)
- statistical methods (1)
- steady state topography (1)
- stochastic filtering (1)
- stream (1)
- stream water (1)
- streamflow (1)
- subduction interface (1)
- submerged cave (1)
- subrosion (1)
- subsurface heterogeneities (1)
- sulfur speciation (1)
- survival (1)
- swarm LP (1)
- synthesis (1)
- synthetic seismograms (1)
- synthetische Seismogramme (1)
- system boundary (1)
- table-top experiment (1)
- taiga forest (1)
- tectonic shortening (1)
- tectonics (1)
- temperature changes (1)
- tetrahedral boron (1)
- thermal modeling (1)
- thermochronology (1)
- thermodynamic modeling (1)
- thermokarst (1)
- thermoregulation (1)
- thrust belts (1)
- tide gauge (1)
- time series (1)
- tomato (1)
- torsion (1)
- trace elements (1)
- treeline (1)
- trench advance (1)
- trend analysis (1)
- triangle method (1)
- truncation error estimate (1)
- tundra (1)
- typhoons (1)
- ultrahigh-pressure (UHP) (1)
- ultramafic granulites (1)
- uncertainty (1)
- uncertainty quantification (1)
- ungauged basins (1)
- unmanaged forest (1)
- uplift and erosion (1)
- varved lake sediments (1)
- vegetation dynamics (1)
- vegetation-climate feedbacks (1)
- vegetation-plot database (1)
- video analysis (1)
- volcaniclastics (1)
- volcanism (1)
- volcanology (1)
- vulnerability (1)
- warvierte Seesedimente (1)
- water (1)
- water isotopes (1)
- water quality modelling (1)
- wavelet (1)
- weather pattern (1)
- wind speed (1)
- winds (1)
- winter (1)
- Östliches Karoo-Becken (1)
- ökonomische Auswirkungen (1)
Institute
- Institut für Geowissenschaften (310) (remove)
Here we present high-resolution delta O-18 records obtained from speleothems collected in the eastern Bolivian Andes. The stable isotope records are related to the regional- to large-scale atmospheric circulation over South America and allow interpreting changes in delta O-18 during the last 1400 yr as a function of changes in precipitation regimes over the southern tropical Andes. Two distinct phases with more negative delta O-18 values, interpreted as periods of increased convective activity over the eastern Andean Cordillera in Bolivia are observed concomitantly with periods of global climate anomalies during the last millennium, such as the Medieval Climate Anomaly (MCA) and the Little Ice Age (LIA) respectively. Changes in the Bolivian delta O-18 record during the LIA are apparently related to a southward displacement of the Intertropical Convergence Zone (ITCZ), which acts as a main moisture driver to intensify convection over the tropical continent. During the MCA, however, the increased convective activity observed in the Bolivian record is likely the result of a different mechanism, which implies moisture sourced mainly from the southern tropical Atlantic. This interpretation is consistent with paleoclimate records further to the north in the tropical Andes that show progressively drier conditions during this time period, indicating a more northerly position of the ITCZ. The transition period between the MCA and the LIA shows a slight tendency toward increased delta O-18 values, indicating weakened convective activity. Our results also reveal a non-stationary anti-phased behavior between the delta O-18 reconstructions from Bolivia and northeastern Brazil that confirms a continental-scale east-west teleconnection across South America during the LIA.
The concept of hydrologic connectivity summarizes all flow processes that link separate regions of a landscape. As such, it is a central theme in the field of catchment hydrology, with influence on neighboring disciplines such as ecology and geomorphology. It is widely acknowledged to be an important key in understanding the response behavior of a catchment and has at the same time inspired research on internal processes over a broad range of scales. From this process-hydrological point of view, hydrological connectivity is the conceptual framework to link local observations across space and scales.
This is the context in which the four studies this thesis comprises of were conducted. The focus was on structures and their spatial organization as important control on preferential subsurface flow. Each experiment covered a part of the conceptualized flow path from hillslopes to the stream: soil profile, hillslope, riparian zone, and stream.
For each study site, the most characteristic structures of the investigated domain and scale, such as slope deposits and peat layers were identified based on preliminary or previous investigations or literature reviews. Additionally, further structural data was collected and topographical analyses were carried out. Flow processes were observed either based on response observations (soil moisture changes or discharge patterns) or direct measurement (advective heat transport). Based on these data, the flow-relevance of the characteristic structures was evaluated, especially with regard to hillslope to stream connectivity.
Results of the four studies revealed a clear relationship between characteristic spatial structures and the hydrological behavior of the catchment. Especially the spatial distribution of structures throughout the study domain and their interconnectedness were crucial for the establishment of preferential flow paths and their relevance for large-scale processes. Plot and hillslope-scale irrigation experiments showed that the macropores of a heterogeneous, skeletal soil enabled preferential flow paths at the scale of centimeters through the otherwise unsaturated soil. These flow paths connected throughout the soil column and across the hillslope and facilitated substantial amounts of vertical and lateral flow through periglacial slope deposits.
In the riparian zone of the same headwater catchment, the connectivity between hillslopes and stream was controlled by topography and the dualism between characteristic subsurface structures and the geomorphological heterogeneity of the stream channel. At the small scale (1 m to 10 m) highest gains always occurred at steps along the longitudinal streambed profile, which also controlled discharge patterns at the large scale (100 m) during base flow conditions (number of steps per section). During medium and high flow conditions, however, the impact of topography and parafluvial flow through riparian zone structures prevailed and dominated the large-scale response patterns.
In the streambed of a lowland river, low permeability peat layers affected the connectivity between surface water and groundwater, but also between surface water and the hyporheic zone. The crucial factor was not the permeability of the streambed itself, but rather the spatial arrangement of flow-impeding peat layers, causing increased vertical flow through narrow “windows” in contrast to predominantly lateral flow in extended areas of high hydraulic conductivity sediments.
These results show that the spatial organization of structures was an important control for hydrological processes at all scales and study areas. In a final step, the observations from different scales and catchment elements were put in relation and compared. The main focus was on the theoretical analysis of the scale hierarchies of structures and processes and the direction of causal dependencies in this context. Based on the resulting hierarchical structure, a conceptual framework was developed which is capable of representing the system’s complexity while allowing for adequate simplifications.
The resulting concept of the parabolic scale series is based on the insight that flow processes in the terrestrial part of the catchment (soil and hillslopes) converge. This means that small-scale processes assemble and form large-scale processes and responses. Processes in the riparian zone and the streambed, however, are not well represented by the idea of convergence. Here, the large-scale catchment signal arrives and is modified by structures in the riparian zone, stream morphology, and the small-scale interactions between surface water and groundwater. Flow paths diverge and processes can better be represented by proceeding from large scales to smaller ones. The catchment-scale representation of processes and structures is thus the conceptual link between terrestrial hillslope processes and processes in the riparian corridor.
Mechanical and/or chemical removal of material from the subsurface may generate large subsurface cavities, the destabilisation of which can lead to ground collapse and the formation of sinkholes. Numerical simulation of the interaction of cavity growth, host material deformation and overburden collapse is desirable to better understand the sinkhole hazard but is a challenging task due to the involved high strains and material discontinuities. Here, we present 2-D distinct element method numerical simulations of cavity growth and sinkhole development. Firstly, we simulate cavity formation by quasi-static, stepwise removal of material in a single growing zone of an arbitrary geometry and depth. We benchmark this approach against analytical and boundary element method models of a deep void space in a linear elastic material. Secondly, we explore the effects of properties of different uniform materials on cavity stability and sinkhole development. We perform simulated biaxial tests to calibrate macroscopic geotechnical parameters of three model materials representative of those in which sinkholes develop at the Dead Sea shoreline: mud, alluvium and salt. We show that weak materials do not support large cavities, leading to gradual sagging or suffusion-style subsidence. Strong materials support quasi-stable to stable cavities, the overburdens of which may fail suddenly in a caprock or bedrock collapse style. Thirdly, we examine the consequences of layered arrangements of weak and strong materials. We find that these are more susceptible to sinkhole collapse than uniform materials not only due to a lower integrated strength of the overburden but also due to an inhibition of stabilising stress arching. Finally, we compare our model sinkhole geometries to observations at the Ghor Al-Haditha sinkhole site in Jordan. Sinkhole depth / diameter ratios of 0.15 in mud, 0.37 in alluvium and 0.33 in salt are reproduced successfully in the calibrated model materials. The model results suggest that the observed distribution of sinkhole depth / diameter values in each material type may partly reflect sinkhole growth trends.
Mechanical and/or chemical removal of material from the subsurface may generate large subsurface cavities, the destabilisation of which can lead to ground collapse and the formation of sinkholes. Numerical simulation of the interaction of cavity growth, host material deformation and overburden collapse is desirable to better understand the sinkhole hazard but is a challenging task due to the involved high strains and material discontinuities. Here, we present 2-D distinct element method numerical simulations of cavity growth and sinkhole development. Firstly, we simulate cavity formation by quasi-static, stepwise removal of material in a single growing zone of an arbitrary geometry and depth. We benchmark this approach against analytical and boundary element method models of a deep void space in a linear elastic material. Secondly, we explore the effects of properties of different uniform materials on cavity stability and sinkhole development. We perform simulated biaxial tests to calibrate macroscopic geotechnical parameters of three model materials representative of those in which sinkholes develop at the Dead Sea shoreline: mud, alluvium and salt. We show that weak materials do not support large cavities, leading to gradual sagging or suffusion-style subsidence. Strong materials support quasi-stable to stable cavities, the overburdens of which may fail suddenly in a caprock or bedrock collapse style. Thirdly, we examine the consequences of layered arrangements of weak and strong materials. We find that these are more susceptible to sinkhole collapse than uniform materials not only due to a lower integrated strength of the overburden but also due to an inhibition of stabilising stress arching. Finally, we compare our model sinkhole geometries to observations at the Ghor Al-Haditha sinkhole site in Jordan. Sinkhole depth ∕ diameter ratios of 0.15 in mud, 0.37 in alluvium and 0.33 in salt are reproduced successfully in the calibrated model materials. The model results suggest that the observed distribution of sinkhole depth ∕ diameter values in each material type may partly reflect sinkhole growth trends.
Python is at the forefront of scientific computation for seismologists and therefore should be introduced to students interested in becoming seismologists. On its own, Python is open source and well designed with extensive libraries. However, Python code can also be executed, visualized, and communicated to others with "Jupyter Notebooks". Thus, Jupyter Notebooks are ideal for teaching students Python and scientific computation. In this article, we designed an openly available Python library and collection of Jupyter Notebooks based on defined scientific computation learning goals for seismology students. The Notebooks cover topics from an introduction to Python to organizing data, earthquake catalog statistics, linear regression, and making maps. Our Python library and collection of Jupyter Notebooks are meant to be used as course materials for an upper-division data analysis course in an Earth Science Department, and the materials were tested in a Probabilistic Seismic Hazard course. However, seismologists or anyone else who is interested in Python for data analysis and map making can use these materials.
Quantifying the roles of single stations within homogeneous regions using complex network analysis
(2018)
Regionalization and pooling stations to form homogeneous regions or communities are essential for reliable parameter transfer, prediction in ungauged basins, and estimation of missing information. Over the years, several clustering methods have been proposed for regional analysis. Most of these methods are able to quantify the study region in terms of homogeneity but fail to provide microscopic information about the interaction between communities, as well as about each station within the communities. We propose a complex network-based approach to extract this valuable information and demonstrate the potential of our approach using a rainfall network constructed from the Indian gridded daily precipitation data. The communities were identified using the network-theoretical community detection algorithm for maximizing the modularity. Further, the grid points (nodes) were classified into universal roles according to their pattern of within- and between-community connections. The method thus yields zoomed-in details of individual rainfall grids within each community.
The climate is a complex dynamical system involving interactions and feedbacks among different processes at multiple temporal and spatial scales. Although numerous studies have attempted to understand the climate system, nonetheless, the studies investigating the multiscale characteristics of the climate are scarce. Further, the present set of techniques are limited in their ability to unravel the multi-scale variability of the climate system. It is completely plausible that extreme events and abrupt transitions, which are of great interest to climate community, are resultant of interactions among processes operating at multi-scale. For instance, storms, weather patterns, seasonal irregularities such as El Niño, floods and droughts, and decades-long climate variations can be better understood and even predicted by quantifying their multi-scale dynamics. This makes a strong argument to unravel the interaction and patterns of climatic processes at different scales. With this background, the thesis aims at developing measures to understand and quantify multi-scale interactions within the climate system.
In the first part of the thesis, I proposed two new methods, viz, multi-scale event synchronization (MSES) and wavelet multi-scale correlation (WMC) to capture the scale-specific features present in the climatic processes. The proposed methods were tested on various synthetic and real-world time series in order to check their applicability and replicability. The results indicate that both methods (WMC and MSES) are able to capture scale-specific associations that exist between processes at different time scales in a more detailed manner as compared to the traditional single scale counterparts.
In the second part of the thesis, the proposed multi-scale similarity measures were used in constructing climate networks to investigate the evolution of spatial connections within climatic processes at multiple timescales. The proposed methods WMC and MSES, together with complex network were applied to two different datasets.
In the first application, climate networks based on WMC were constructed for the univariate global sea surface temperature (SST) data to identify and visualize the SSTs patterns that develop very similarly over time and distinguish them from those that have long-range teleconnections to other ocean regions. Further investigations of climate networks on different timescales revealed (i) various high variability and co-variability regions, and (ii) short and long-range teleconnection regions with varying spatial distance. The outcomes of the study not only re-confirmed the existing knowledge on the link between SST patterns like El Niño Southern Oscillation and the Pacific Decadal Oscillation, but also suggested new insights into the characteristics and origins of long-range teleconnections.
In the second application, I used the developed non-linear MSES similarity measure to quantify the multivariate teleconnections between extreme Indian precipitation and climatic patterns with the highest relevance for Indian sub-continent. The results confirmed significant non-linear influences that were not well captured by the traditional methods. Further, there was a substantial variation in the strength and nature of teleconnection across India, and across time scales.
Overall, the results from investigations conducted in the thesis strongly highlight the need for considering the multi-scale aspects in climatic processes, and the proposed methods provide robust framework for quantifying the multi-scale characteristics.
The behaviour of individuals, businesses, and government entities before, during, and immediately after a disaster can dramatically affect the impact and recovery time. However, existing risk-assessment methods rarely include this critical factor. In this Perspective, we show why this is a concern, and demonstrate that although initial efforts have inevitably represented human behaviour in limited terms, innovations in flood-risk assessment that integrate societal behaviour and behavioural adaptation dynamics into such quantifications may lead to more accurate characterization of risks and improved assessment of the effectiveness of risk-management strategies and investments. Such multidisciplinary approaches can inform flood-risk management policy development.
Natural hazards such as floods, earthquakes, landslides, and multi-hazard events heavily affect human societies and call for better management strategies. Due to the severity of such events, it is of utmost importance to understand whether and how they change in re-sponse to evolving hydro-climatological, geo-physical and socio-economic conditions. These conditions jointly determine the magnitude, frequency, and impact of disasters, and are changing in response to climate change and human behavior. Therefore methods are need-ed for hazard and risk quantification accounting for the transient nature of hazards and risks in response to changing natural and anthropogenic altered systems. The purpose of this conference is to bring together researchers from natural sciences (e.g. hydrology, meteorology, geomorphology, hydraulic engineering, environmental science, seismology, geography), risk research, nonlinear systems dynamics, and applied mathematics to discuss new insights and developments about data science, changing systems, multi-hazard events and the linkage between hazard and vulnerabilities under unstable environmental conditions. Knowledge transfer, communication and networking will be key issues of the conference. The conference is organized by means of invited talks given by outstanding experts, oral presentations, poster sessions and discussions.