In the last decades, temperatures of Earth’s atmosphere and its oceans have increased significantly. Warming strongly affects Arctic, where we can observe fast glacial melt during summer. Meltwater brings debris from land into coastal ocean, creating zones with brown water. This seawater darkening affect living conditions marine organisms possibly threaten life in future. To address this issue,...

Jökulhlaups in Iceland may originate from marginal or subglacial sources of water melted by atmospheric processes, permanent geothermal heat or volcanic eruptions. Glacier-volcano interactions produce meltwater that either drains toward the glacier margin or accumulates in subglacial lakes. Accumulated meltwater drains periodically in jökulhlaups from the subglacial lakes and occasionally durin...

The interaction of magma with external water commonly enhances fragmentation through the conversion thermal to mechanical energy and results in an increased production fine-grained volcanic tephra. Magma-water is thus importance for hazard mitigation on both a local regional scales. relative proportion that interacts magma, quantified as water-to-melt mass ratio, thought determine efficiency co...

Surface crevasses on the Greenland Ice Sheet (GrIS) capture nearly half of seasonal runoff, yet their role in transferring meltwater to bed has received little attention relative that supraglacial lakes and moulins. Here, we present observations crevasse ponding investigate controls hydrological behavior at a fast-moving, marine-terminating sector GrIS. We map surface meltwater, crevasses, surf...

Observations of terrestrial examples of lava and ice interaction have been combined with laboratory simulations to provide a framework for investigating lava and ice interaction on Mars. Identification of largeand small-scale characteristic features will indicate whether large quantities of meltwater were trapped or whether lava flow confinement occurred. These features should also enable the d...

Modern ground-water flow models, geotechnical studies, and science-based land-use planning require knowledge of the distribution of surficial earth materials from land surface to the top of bedrock (e.g., Masterson and others, 1997a,). To be useful, modern geologic maps must portray such information three dimensionally in a way that is consistent with the regional stratigraphic framework, geote...

The Gulf of Bothnia is a shallow, elongate basin dividing Sweden and Finland, and is located in the centre of the terrain formerly occupied by the Fennoscandian Ice Sheet (FIS). It is considered to have hosted a variety of different glaci-dynamic environments during the evolution of the FIS, but direct glacial geological or geomorphological evidence from the Gulf itself is almost entirely lacki...

In the arid McMurdo Dry Valleys of East Antarctica, glacial meltwater streams flow for 6-10 weeks during the austral summer. Harbored in these meltwater streambeds are diatom communities, which are part of a microbial mat matrix. These mat assemblages endure desiccating winters and become reactivated upon rehydration during the austral summer. Water is considered the major limiting resource in ...