A5101502565- Cryospheric studies and observations
- Geological and Geochemical Analysis
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Seismic Waves and Analysis
- Geological and Tectonic Studies in Latin America
- Geology and Paleoclimatology Research
- Arctic and Antarctic ice dynamics
- Drilling and Well Engineering
- Reservoir Engineering and Simulation Methods
- Atmospheric Ozone and Climate
- Atmospheric chemistry and aerosols
- Winter Sports Injuries and Performance
- Seismic Imaging and Inversion Techniques
- Soil Moisture and Remote Sensing
- Polar Research and Ecology
- Planetary Science and Exploration
- Earthquake Detection and Analysis
- Atmospheric and Environmental Gas Dynamics
- Climate change and permafrost
- Seismology and Earthquake Studies
- Air Quality Monitoring and Forecasting
- Groundwater and Isotope Geochemistry
- Wildlife Ecology and Conservation
- Geophysics and Gravity Measurements
Universidad Nacional de La Plata
2021-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2021-2025
TU Dresden
2017-2024
Centro Científico Tecnológico - San Juan
2024
Planet
2017-2022
University of Bremen
2008
Kiel University
1979
Abstract Glaciers are indicators of ongoing anthropogenic climate change 1 . Their melting leads to increased local geohazards 2 , and impacts marine 3 terrestrial 4,5 ecosystems, regional freshwater resources 6 both global water energy cycles 7,8 Together with the Greenland Antarctic ice sheets, glaciers essential drivers present 9,10 future 11–13 sea-level rise. Previous assessments glacier mass changes have been hampered by spatial temporal limitations heterogeneity existing data series...
Abstract The Patagonian slab window has been proposed to enhance the solid Earth response ice mass load changes in overlying Northern and Southern Icefields (NPI SPI, respectively). Here, we present first regional seismic velocity model covering entire north‐south extent of window. A slow anomaly uppermost mantle indicates warm temperature, low viscosity, possibly partial melt. Low velocities just below Moho suggest that lithospheric thermally eroded over youngest part slowest is north 49°S,...
Abstract Geological processes in Southern Patagonia are affected by the Patagonian slab window, formed subduction of Chile Ridge and subsequent northward migration Triple Junction. Using shear wave splitting analysis, we observe strong up to 2.5 s with an E‐W fast direction just south triple junction edge subducting Nazca slab. This region anisotropy is coincident low uppermost mantle velocities absence lithosphere, indicating that flow occurs a warm, low‐viscosity, 200–300 km wide shallow...
The surface mass balance (SMB) is very low over the vast East Antarctic Plateau, for example in Vostok region, where mean SMB on order of 20–35 kg m -2 a -1 . observation and modeling spatio-temporal variations are equally challenging this environment. Stake measurements carried out region provide observations half century (1970–2019). This unique data set compared with estimations regional climate models RACMO2.3p2 (RACMO) MAR3.11 (MAR). We focus time scales from months to decades....
Abstract We integrate geodetic, geological and seismological observations in Tierra del Fuego, into a consistent quantitative analysis, to better understand the current crustal deformation associated Magallanes‐Fagnano Fault, that is, transform boundary between South American Scotia plates at southern tip of Patagonia. To obtain reliable geodetic estimates thickness seismogenic layer, we model seismic cycle from great 1949 M w ≃ 7.7 earthquake present, including lasting effects postseismic...
Abstract. Antarctic ice-mass balance is key to project sea-level changes, assess future shifts in the global water cycle and ocean circulation, predict fate of White Continent. The ice mass Peninsula sensitive atmospheric circulation. geographical conditions pose a challenge for modelling surface this area. We use GRACE Follow-On satellite gravimetry derive variation time series peninsula region 2002–2024. investigate whether these variations correlate with model or climate indexes. Our...
The paper presents a review of the studies carried out in area subglacial Lake Vostok (East Antarctica) to date. They include geophysical, glaciological, geodesic, and geological investigations. most important geophysical investigations were by Polar Marine Geosurvey Expedition. included reflection refraction seismic, also radio-echo sounding. major contribution study this region was made American researchers, who 2000/01 field season performed complex airborne survey on regular network....
Abstract. Ice-surface elevation profiles of more than 30.000 km in total length are derived from kinematic GNSS observations on sledge convoy vehicles along traverses between Vostok station and the East Antarctic coast. The have accuracies 4 9 cm. They used to validate datasets both radar laser satellite altimetry as well four digital models. A crossover analysis with three different Envisat yields a clear preference for relocation method over direct slope correction threshold retrackers...
Abstract Lake Vostok, East Antarctica, represents an extensive water surface at the base of ice sheet. Snow, and atmospheric pressure loads applied anywhere within lake area produce a hydrostatic response, involving deformations surface, ice–water interface particle horizons. A modelling scheme is developed to derive height changes these surfaces for given load pattern. It series scenarios, predictions based on fields derived from regional climate model are compared observational datasets....
Patagonia is one of the key places to study interaction plate tectonics and mantle flow patterns with geological processes. This part continent shaped by northward migration Chile Triple Junction, currently marked subduction Chilean spreading ridge at latitude 46oS, opening a slab window beneath Southern Patagonia. The idea was hypothesized explain volcanic gap between north southern peninsula. analysis rock composition shows transition domain signature melt (metasomatized MORB) no (OIB...