A5022691974- Cryospheric studies and observations
- Winter Sports Injuries and Performance
- Landslides and related hazards
- Climate change and permafrost
- Digital Innovation in Industries
- Arctic and Antarctic ice dynamics
- Geology and Paleoclimatology Research
- Atmospheric and Environmental Gas Dynamics
- Icing and De-icing Technologies
- Meteorological Phenomena and Simulations
- Polar Research and Ecology
- Atmospheric aerosols and clouds
- Precipitation Measurement and Analysis
- Climate variability and models
- Advanced Computational Techniques and Applications
- Ionosphere and magnetosphere dynamics
- Laser Design and Applications
- Environmental and Cultural Studies in Latin America and Beyond
- Peatlands and Wetlands Ecology
- Water Quality and Resources Studies
- Lung Cancer Treatments and Mutations
- Entomological Studies and Ecology
- Fire effects on ecosystems
- Social Acceptance of Renewable Energy
- Urban Heat Island Mitigation
University of Alaska Fairbanks
2018-2025
Austrian Academy of Sciences
2016-2025
Institute for Interdisciplinary Mountain Research
2016-2025
Universität Innsbruck
2016-2020
University of Cambridge
1958
Abstract Cryospheric long-term timeseries get increasingly important. To document climate-related effects on viscous creep of ice-rich mountain permafrost, we investigated (1995–2022) geodetically-derived Rock Glacier Velocity (RGV), i.e. spatially averaged interannual velocity related to a rock glacier (RG) unit or part it. We considered 50 RGV from 43 RGs covering the entire European Alps. Eight these are destabilized. Results show that distinctly variable ranging 0.04 6.23 m −1 ....
Surface velocities have been regularly monitored at the rock glacier in Outer Hochebenkar, Ötztal Alps, Austria since early 1950s. This study provides an update to previously published surface velocity time series, showing mean profile of four cross profiles beginning measurements (1951,1954, 1997; depending on profile), as well single block displacements from 1998 2015. Profiles P1, P2 and P3 moved between 42 90 m, 0.70 1.48 m yr–1, they were first established 1950s (1951/54). Profile P0,...
Abstract. This study investigates rock glacier destabilization based on the results of a unique in situ and remote-sensing-based monitoring network focused kinematics Äußeres Hochebenkar (Austrian Alps). We consolidate, homogenize, extend existing time series to generate comprehensive dataset consisting 14 digital surface models covering 68-year period, as well measurements block displacement since early 1950s. The are derived from historical aerial imagery and, more recently, airborne...
Abstract. The density of new snow is operationally monitored by meteorological or hydrological services at daily time intervals, occasionally measured in local field studies. However, conditions and thus settling the freshly deposited rapidly alter until measurement. Physically based models nowcasting applications make use hourly weather data to determine water equivalent snowfall depth. In previous studies, a number empirical parameterizations were developed approximate parameters. These...
Abstract. Atmospheric large-scale patterns strongly determine Greenland’s regional climate through air mass advection and local weather conditions, making them essential to understand atmospheric variability. This study analyses the occurrence of during two distinct warming periods recent past that we identify objectively in climatological data. The first period lasted from 1922 1932 an average temperature increase 2.9 °C across all stations considered for this study. second 1993 2007 had...
Abstract. In recent years, firn and summer snow cover has decreased on Alpine glaciers, exposing larger areas of ice at higher elevations. This reduces albedo leads to increased melt. To understand mass loss in former accumulation under conditions rapid glacier recession, it is important constrain the possible range newly free regions, duration exposure, albedo-ablation connection. We combine data from an on-ice weather station (3492 m.a.s.l.), ablation stakes, remote sensing derived provide...
Rock glaciers are prevalent debris landforms associated with periglacial terrain and formed by the creep of mountain permafrost. In recent years, there has been increasing interest in dynamics evolution rock under climate change. Research indicates a general acceleration rates, as well an incidence glacier destabilization degradation. Recently, Glacier Inventories Kinematics (RGIK) initiative achieved inclusion Velocity (RGV) additional product Essential Climate Variable (ECV) for permafrost...
Monitoring rock glacier movement is crucial for understanding the response of mountainous permafrost to changing climatic conditions. This importance acknowledged with inclusion Rock Glacier Velocity (RGV) as an Essential Climate Variable (ECV) product permafrost. The RGV focuses on tracking surface annual scale glaciers whose dominated by creep. While existing remote sensing methods provide valuable insights into dynamics [1], they often fall short in capturing detailed 3D displacement...
Glacier albedo is a key driver of glacier energy and mass balance. In recent years, multi-annual firn summertime snow cover has decreased on Alpine glaciers, exposing larger areas ice at increasingly high elevations. This reduces contributes to feedback mechanisms that lead increased melt. To understand better predict loss in former accumulation under conditions rapid recession, it important constrain the possible range occurs these newly free regions, duration exposure, correlation causal...
Abstract. Most glaciers in Austria are expected to disappear the coming decades. The general trend deglaciation is apparent from observations of past glacier change as well projections future evolution region. However, projected timing ice loss varies considerably between models and data sources. We enhance regional area volume with a new inventory for Ötztal Stubai range western use these initialize calibrate Open Global Glacier Model (OGGM), generating all study region until 2100 under...
Ski resorts increasingly rely on snow making to ensure good quality skiing regardless of the variability natural cover. This study aims quantify past changes in conditions based an analysis long-term wet bulb temperature time series from 20 weather stations Germany and Austria. The are located at a range altitudes 267 m 3109 m, vicinity ski resorts. lengths time-series 54 83 years. Using threshold mean daily −2 °C we define 'potential days' track number days months early season (October,...
Abstract A three-winter study has been conducted to better understand the relationship between atmospheric conditions and ice fog or diamond dust microphysics. Measurements were east of downtown Fairbanks in interior Alaska during nonprecipitating conditions. Atmospheric measured with several weather stations around region two meteorological temperature profiler instruments (ATTEX MTP-5HE MTP-5PE). Near-surface particle microphysical observations Particle Phase Discriminator mark 2,...
Little is known about the thickness of active Alpine rock glaciers, yet they are important components local hydrology. We use GPR data to determine depth bedrock Äußeres Hochebenkar glacier (Austria). There no detailed information available regarding density and composition glacier, assumptions signal propagation velocity have be made when processing data. a simple creep model based on surface displacement slope calculate along flow line. calculated profiles line for three different time...
Abstract We present the data records and station history of an automatic weather (AWS) on Denali Pass (5715 m MSL), Alaska. The was installed by a team climbers from Japanese Alpine Club after fatal accident involving in 1989 operational intermittently between 1990 2007, measuring primarily air temperature wind speed. In later years, AWS operated International Arctic Research Center University Alaska Fairbanks. Station is reconstructed available documentation as archived expedition teams. To...
Abstract Machine learning (ML) has rapidly transitioned from a niche activity to mainstream tool for environmental research applications including atmospheric science cloud microphysics studies. Two recently developed particle probes measure the light scattered in near forward direction and save digital images of scattering light. Scattering pattern collected by Particle Phase Discriminator mark 2, Karlsruhe edition (PPD-2K), Small Ice Detector, version 3 (SID-3) provide valuable information...
Abstract. The density of new snow is sometimes monitored by meteorological or hydrological services at daily time intervals, occasionally measured in local field studies. However, conditions and thus settling the freshly deposited rapidly alter until measurement. Physically based models now-casting applications make use hourly weather data to determine water equivalent snowfall depth. In previous studies, a number empirical parameterizations were developed approximate parameters. These are...
Abstract. As Alpine glaciers become snow-free in summer, more dark, bare ice is exposed, decreasing local albedo and increasing surface melting. To include this feedback mechanism models of future deglaciation, it important to understand the processes governing broadband spectral at a scale. However, few situ reflectance data have been measured ablation zones mountain glaciers. contribution knowledge gap, we present (hemispherical–conical–reflectance factor) from 325 1075 nm collected along...