Esteban A Sagredo

Datos Biográficos

ID6370471
NOMBREEsteban A Sagredo
NOMBRESEsteban A
APELLIDOSagredo
FIRMASAGREDO E A
AFILIACIONESPontificia Universidad Católica de Chile
ORCID0000-0002-4494-5423
VERIFICADOSí
TOTAL DE OBRAS7
TOTAL DE CITAS0
TOTAL COMO AUTOR7
TOTAL COMO EDITOR0
PRIMER AÑO DE PUBLICACIÓN2014
AÑO MÁS RECIENTE DE PUBLICACIÓN2024
ÍNDICE H0

  • Máxima expansión del Glaciar Tenerife (51°S) durante el último milenio

    Open AccessGonzalo Amigo, Giovana Gómez Amigo et al.ARTICLERevista de geografía Norte Grande2024

    En los Andes Patagónicos aún es materia de debate cuándo los glaciares alcanzaron su máxima expansión durante el último milenio. En este trabajo analizamos las fluctuaciones del Glaciar Tenerife (51°S), un pequeño glaciar de montaña ubicado inmediatamente al sur de los Campos de Hielos Patagónicos. Un análisis detallado de las geoformas glaciales del valle nos permitió identificar tres sistemas de morrenas, en la parte sur-central, suroccidental …

  • Holocene glacier history of northeastern Cordillera Darwin, southernmost South America (55°S)

    Open AccessScott A Reynhout, Michael R Kaplan et al.ARTICLEQuaternary Research2022

    In the Cordillera Darwin, southernmost South America, we used 10 Be and 14 C dating, dendrochronology, and historical observations to reconstruct the glacial history of the Dalla Vedova valley from deglacial time to the present. After deglacial recession into northeastern Darwin and Dalla Vedova, by ~16 ka, evidence indicates a glacial advance at ~13 ka coeval with the Antarctic Cold Reversal. The next robustly dated glacial expansion occurred at…

  • Glacial geomorphology of the central and southern Chilotan Archipelago (42.2°S–43.5°S), northwestern Patagonia

    Open AccessRodrigo L Soteres, Esteban A Sagredo et al.ARTICLEJournal of Maps2022

    We present a geomorphic map of the glacial landforms associated with the Golfo Corcovado ice lobe in northwestern Patagonia. Built upon prior studies, our map elaborates on the central and southern sectors of Isla Grande de Chiloé and neighboring islands. Through a combination of remote sensing techniques and exhaustive fieldwork, we identified a suite of ice-marginal, subglacial, and glaciofluvial features created by the Golfo Corcovado ice lobe…

  • Glacial geomorphology of the Strait of Magellan ice lobe, southernmost Patagonia, South America

    Open AccessRodrigo L Soteres, Carly Peltier et al.ARTICLEJournal of Maps2020

    We present a geomorphic map of the landforms created by the Patagonian Ice Sheet during the local Last Glacial Maximum and perhaps prior glaciations in southernmost Patagonia. Building on prior work, the new mapping focuses in unprecedented detail on the right lateral and frontal landforms formed by the Strait of Magellan ice lobe. We produced the map using aerial orthophotography, Sentinel-2 and SPOT satellite imagery, ALOS PALSAR digital elevat…

  • The glacial geomorphology of the Río Corcovado, Río Huemul and Lago Palena/General Vintter valleys, northeastern Patagonia (43°S, 71°W)

    Open AccessTancrède Leger, Andrew S Hein et al.ARTICLEJournal of Maps2020

    This study presents the first detailed glacial geomorphological map of the sediment-landform assemblages formed by three eastern outlet glaciers of the former Patagonian Ice Sheet. These glaciers occupied the Río Corcovado, Río Huemul and Lago Palena/General Vintter valleys, Chubut province, Argentina (43°S, 71°W). By combining remote sensing and field-mapping, we build on previous ice-sheet scale mapping and geological surveys to provide high-re…

  • Equilibrium line altitudes along the Andes during the Last millennium

    Open AccessEsteban A Sagredo, Thomas V Lowell et al.ARTICLEThe Holocene2016Referencias: 6

    Deciphering the climate changes that influenced the glacial fluctuations of the last millennium requires documenting the spatial and temporal patterns of these glacial events. Here, we estimate the change in equilibrium line altitudes (ELAs) between the most prominent glacial advance of the last millennium and the present for four alpine glaciers located in different climatic regimes along the Andes. For each glacier, we reconstruct scenarios of …

  • Sensitivities of the equilibrium line altitude to temperature and precipitation changes along the Andes

    Open AccessEsteban A Sagredo, Summer Rupper et al.ARTICLEQuaternary Research2014

    Equilibrium line altitudes (ELAs) of alpine glaciers are sensitive indicators of climate change and have been commonly used to reconstruct paleoclimates at different temporal and spatial scales. However, accurate interpretations of ELA fluctuations rely on a quantitative understanding of the sensitivity of ELAs to changes in climate. We applied a full surface energy- and mass-balance model to quantify ELA sensitivity to temperature and precipitat…