A5086548111- Geology and Paleoclimatology Research
- Geological formations and processes
- Cryospheric studies and observations
- Soil erosion and sediment transport
- earthquake and tectonic studies
- Landslides and related hazards
- Geochemistry and Elemental Analysis
- Aeolian processes and effects
- Geological and Geochemical Analysis
- Hydrocarbon exploration and reservoir analysis
- Geochemistry and Geologic Mapping
- Fire effects on ecosystems
- Climate change and permafrost
- Arctic and Antarctic ice dynamics
- Geomagnetism and Paleomagnetism Studies
- Methane Hydrates and Related Phenomena
- Karst Systems and Hydrogeology
- Winter Sports Injuries and Performance
- Geological and Geophysical Studies
- Maritime and Coastal Archaeology
- Atmospheric and Environmental Gas Dynamics
- Tree Root and Stability Studies
- Geological and Geophysical Studies Worldwide
- Oil, Gas, and Environmental Issues
- Archaeological Research and Protection
Institute of Arctic and Alpine Research
2025
University of Colorado Boulder
2024-2025
Cooperative Institute for Research in Environmental Sciences
2024
Université de Lorraine
2019-2023
Centre National de la Recherche Scientifique
2019-2022
Aix-Marseille Université
2022
Institut de Recherche pour le Développement
2022
Centre de Recherche et d’Enseignement de Géosciences de l’Environnement
2022
Collège de France
2022
Centre de Recherches Pétrographiques et Géochimiques
2014-2020
Abstract In the mountainous headwaters of Colorado River episodic dust deposition from adjacent arid and disturbed landscapes darkens snow accelerates snowmelt, impacting basin hydrology. Patterns impacts across heterogenous landscape cannot be inferred current in situ observations. To fill this gap daily remotely sensed retrievals radiative forcing contribution to melt were analyzed over MODIS period record (2001–2023) quantify spatiotemporal darkening. Each season magnitudes lowest early...
Satellite remote sensing of snow water equivalent (SWE) at high spatiotemporal resolutions remains an unsolved challenge in hydrology. While accurate and resolution measurements surface properties (e.g., cover, grain size, albedo) can be derived from multispectral hyperspectral data, these sensors cannot provide direct SWE information. Synthetic aperture radar (SAR) has the potential to measure directly because signal sufficiently low frequencies penetrate a dry snowpack. Depending on SAR...
Snow albedo data are required for various research and applications at a wide range of spatial temporal scales. Typically, spatially-distributed snow measurements generated using multispectral satellite data, including MODIS, Sentinel-2, Landsat imagery. While number algorithms can be employed to create products from imagery, recent MODIS-focused analysis shows that spectrally-based approaches result in the most accurate albedo. These use spectral libraries snow, vegetation, rock reflectance...
Over the Tertiary, uplift of Himalaya combined to development monsoon generated largest erosion basins planet. More than 80% is exported Bay Bengal by Ganga-Brahmaputra river system and generates turbidity currents which convey detrital sediment building Fan. In modern Himalaya, rainfall tectonic processes shape pattern. The seasonal precipitation ensures efficient transport sand-rich sediments in basin despite long distances through a very flat floodplain delta. Rapid also acts as limiting...
The Glaciations impacted erosion during the Late Cenozoic but no consensus has emerged whether they led to increased rates globally. In Himalayas, recent work used past sediment concentrations of terrestrial cosmogenic nuclide (TCN) 10Be and demonstrated that have not permanently in Himalayas. However, for Quaternary, published sedimentary records suffer from provenance uncertainties which prevent elaborate on causes steady rates. Here, we document new, 4,000-m thick Valmiki Section (VS)...