In: Geophysical Research Letters, 2010, vol. 37, p. L10501
Thirty new 100-year records of glacier surface mass balance, accumulation and melt in the Swiss Alps are presented. The time series are based on a comprehensive set of field data and distributed modeling and provide insights into the glacier-climate linkage. Considerable mass loss over the 20th century is evident for all glaciers, but rates differ strongly. Glacier mass loss shows multidecadal...
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In: Geophysical Research Letters, 2016, vol. 43, no. 15, p. 8091–8096
In 1959 the U.S. Army Corps of Engineers built Camp Century beneath the surface of the northwestern Greenland Ice Sheet. There they studied the feasibility of deploying ballistic missiles within the ice sheet. The base and its wastes were abandoned with minimal decommissioning in 1967, under the assumption they would be preserved for eternity by perpetually accumulating snowfall. Here we show...
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In: Atmospheric Environment, 2011, vol. 48, p. 9-21
During the time period of the eruption of the Icelandic volcano Eyjafjallajökull in April/May 2010 the Duesseldorf University of Applied Sciences has performed 14 research flights in situations with and without the volcanic ash plume over Germany. In parallel to the research flights in Germany three measurement flights have been performed by the University of Iceland in May 2010 over the western...
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In: Elements, 2010, vol. 6, no. 4, p. 229-234
Particulate matter is an important constituent of our atmosphere and has a critical impact on natural processes and human health. Although they are a minor component of the average global mass flux, anthropogenic particles are abundant in the urban environment, where they contribute substantially to air pollution. Particulate matter is routinely monitored in urban areas, but different particle...
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In: Natural Hazards and Earth System Sciences, 2020, vol. 20, no. 8, p. 2175–2193
Evidence of observed negative impacts on natural and human systems from anthropogenic climate change is increasing. However, human systems in particular are dynamic and influenced by multiple drivers and hence identifying an anthropogenic climate signal is challenging. Here we analyze the case of lake Palcacocha in the Andes of Peru, which offers a representative model for other glacier lakes...
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In: Catena, 2008, vol. 72, no. 2, p. 248-258
Due to the effect of global change, the potential risk of natural hazards occurring in alpine areas is expected to increase to an even higher risk-level than has been recorded during the last century. These global changes potentially also have distinct influences on fluvial processes in torrents causing erosion on slopes and riverbanks in forested areas. Dating the time of root exposure along...
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In: Marine Micropaleontology, 2017, vol. 133, no. Supplement C, p. 50–57
Tropical marine ecosystems are richly diverse, but are experiencing growing pressure from coastal development and tourism. Assessing the status of coral reef communities along gradients of human pressure is necessary to predict recovery capacity of reefs exposed to acute events such as mass bleaching or storm destruction. Islands in the central Maldives Archipelago, which experience three...
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In: Nordic Hydrology, 2007, vol. 38, no. 1, p. 33-44
Large areas in the Spanish Pyrenees are covered by snow between December and April, especially above 1650 m a.s.l., the location of the cold season 0°C isotherm. However, a significant negative trend in Pyrenean snow pack was detected during the second half of the 20th century. This paper analyses the interannual evolution of snow accumulation in these mountains in relation to the variability of...
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In: Geophysical research letters, 2006, vol. 33, p. L0570
The intense convective storms that affected the Swiss Alps in late August 2005 resulted in what has been referred to as the “floods of the century” (i.e., the past 100 years). While exceptional in terms of their intensity, the 2005 storms do not appear to be anchored within any long-term trends; there are no more intense storms today than a century ago. Despite uncertainties related to...
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In: International Journal of Climatology, 2005, vol. 25(11), p. 1473
A set of 71 station series of surface pressure from Canada and Greenland have been examined for quality control and homogeneity. These records range in length from 50 to 130 years. The object of this exercise was to investigate station-based surface pressure series and atmospheric circulation on a decadal time scale, and to examine the effects of the atmospheric circulation on climate. The data...
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