Glaciers and Climate in the Andes between the Equator and 30° S: What is Recorded under Extreme Environmental Conditions?
@article{Schotterer2003GlaciersAC, title={Glaciers and Climate in the Andes between the Equator and 30° S: What is Recorded under Extreme Environmental Conditions?}, author={Ulrich Schotterer and Martin Grosjean and Willibald Stichler and Patrick Ginot and Christoph Kull and Herv{\'e} Bonnaveira and Bernard Francou and Heinz Walter G{\"a}ggeler and Robert Gallaire and Georg Hoffmann and Bernard Pouyaud and Edson Ram{\'i}rez and Margit Schwikowski and J-D. Taupin}, journal={Climatic Change}, year={2003}, volume={59}, pages={157-175} }
Sublimation and melt disturb the environmental information obtained from ice core records in the Andes. In two case studies we demonstrate to what extent these post-depositional processes may remove major parts of the accumulated snow cover. Dark ash layers from the Tungurahua eruption changed the albedo of surface snow on Chimborazo glacier (6268 m, 1°30′ S,78°36′ W, Ecuador) between two ice core drilling campaigns and forced substantial melt. Re-distribution and washout of the chemical…
30 Citations
Equilibrium line altitudes along the Andes during the Last millennium: Paleoclimatic implications
- Environmental Science, Geography
- 2017
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…
Water Resources in the Arid Mountains of the Atacama Desert (Northern Chile): Past Climate Changes and Modern Conflicts
- Environmental Science
- 2005
The Atacama Desert of the Central Andes (18°S to 28°S) has become a focal point of environmental research in recent years. Indeed, this area is a key site in several respects. It is located between…
Climate variability during the last 1000 years inferred from Andean ice cores: A review of methodology and recent results
- Environmental Science, Geography
- 2009
Rapid decline of snow and ice in the tropical Andes – Impacts, uncertainties and challenges ahead
- Environmental Science
- 2018
Some preliminary results from the Coropuna (Peru) ice core
- Environmental Science, Geography
- 2008
Ice core studies have been implemented in tropical region over the last 30 years to study the past climatic variability. A 42m-long ice core from the saddle of the Coropuna glacier (Peru) is…
Mass Balance and Climate History of a High-Altitude Glacier, Desert Andes of Chile
- Environmental Science, GeographyFrontiers in Earth Science
- 2020
Glaciers in the dry Chilean Andes provide important ecological services, yet their mass balance response to past and ongoing climate change has been little studied. This study examines the recent…
Dating of Little Ice Age glacier fluctuations in the tropical Andes: Charquini glaciers, Bolivia, 16°S
- Environmental Science, Geography
- 2005
Across the Arid Diagonal: deglaciation of the western Andean Cordillera in southwest Bolivia and northern Chile
- Environmental Science, Geology
- 2017
Here we review published cosmogenic records of glaciation and deglaciation from the western cordillera of the arid subtropical Andes of northern Chile and southwest Bolivia. Specifically, we examine…
Seasonal evolution of penitente glaciochemistry at Tapado Glacier, Northern Chile
- Environmental Science
- 2016
This study uses stable isotopes and major ions to examine the seasonal evolution of penitentes on the surface of Tapado Glacier, in the Norte Chico region of the Chilean Andes. A snow pit was sampled…
Determination of an age model based on the analysis of the δ 18O cyclicity in a tropical glacier
- Journal of South American Earth Sciences
- 2022
References
SHOWING 1-10 OF 42 REFERENCES
Influence of sublimation on stable isotope records recovered from high-altitude glaciers in the tropical Andes
- Environmental Science, Geography
- 2001
Sublimation dominates the ablation process on cold, high-altitude glaciers in the tropical Andes. Transport of water vapor through the firn and exchange with ambient moisture alter the stable isotope…
Tropical climate change recorded by a glacier in the central Andes during the last decades of the twentieth century: Chacaltaya, Bolivia, 16°S
- Environmental Science
- 2003
[1] The reasons for the accelerated glacier retreat observed since the early 1980s in the tropical Andes are analyzed based on the well-documented Chacaltaya glacier (Bolivia). Monthly mass balance…
Potential for climate variability reconstruction from Andean glaciochemical records
- Environmental Science, GeographyAnnals of Glaciology
- 2002
Abstract In order to select glacier sites suitable for the reconstruction of short-term climate variability, chemical constituents of shallow cores from Chimborazo, Ecuador, Illimani, Bolivia, and…
Recent changes in tropical freezing heights and the role of sea surface temperature
- Environmental ScienceNature
- 1996
A WIDESPREAD retreat of alpine glaciers1 and melting of tropical ice-cap margins2–7 has been observed in recent decades, over which time a general climate warming at lower altitudes has been…
From accumulation to discharge: modification of stable isotopes during glacial and post‐glacial processes
- Environmental Science, Geography
- 2000
The isotopes of the water molecule (tritium, deuterium and oxygen-18) are considered to be ideal tracers of the water cycle, an isobalance of accumulation and discharge from glaciated areas is…
Late Glacial Stage and Holocene Tropical Ice Core Records from Huascar�n, Peru
- Environmental Science, GeographyScience
- 1995
Two ice cores from the col of Huascar�n in the north-central Andes of Peru contain a paleoclimatic history extending well into the Wisconsinan (W�rm) Glacial Stage and include evidence of the Younger Dryas cool phase, implying that a strong warming has dominated the last two centuries.
Modeling Modern and Late Pleistocene Glacio-Climatological Conditions in the North Chilean Andes (29–30 °)
- Environmental Science, Geography
- 2002
An empirical-statistical climate-glacier model is used to reconstruct Late Pleistocene climate conditions in the south-central Andes of northern Chile (29–30° S). The model was tested using modern…
Assessing the synchroneity of glacier fluctuations in the western cordillera of the Americas during
- Environmental Science, Geography
- 2001
A 25,000-year tropical climate history from bolivian ice cores
- Environmental Science, GeographyScience
- 1998
The abrupt onset and termination of a Younger Dryas-type event suggest atmospheric processes as the probable drivers of regional accumulation during the LGS, during deglaciation, and over the past 3000 years, which is concurrent with higher water levels in regional paleolakes.
Anomalous heat and mass budget of Glaciar Zongo, Bolivia, during the 1997/98 El Niño year
- Environmental ScienceJournal of Glaciology
- 2001
Abstract During El Niño–Southern Oscillation (ENSO) warm events, outer tropics glaciers usually experience a deficit of precipitation, an increase of air temperature and a strongly negative mass…