What are cascade hazards? Cascade hazards can occur when more than one hazard interact. Primary hazards (e.g. avalanches and landslides) can often trigger secondary hazards (e.g. flooding and debris flows). As a result, the impacts are extended further downstream 1,2. Cascade hazards are difficult to predict and even harder to model 4 , therefore are …
Introduction | Types of glacial lakes | Moraine-dammed | Ice-dammed | Bedrock-dammed | Supraglacial | Subglacial | Summary What are glacial lakes and where are they found? During the last few decades, accelerated ice mass loss and glacial retreat has resulted not only the expansion of existing glacial lakes but also the formation of new …
This article is based on the followed accepted and published article about Juneau Icefield: Davies et al., 20221, which has been published in final form at: https://doi.org/10.1002/esp.5383. All data produced in this work, including shapefiles and an A0 poster of the icefield, are available as supplementary data with the final published version. This article is …
By Alex Hyde The sub-tropical glaciers of Bhutan Bhutan is a small mountainous nation located in the Eastern Himalaya, with a population of around 727 000 people (Figure 1). The country has a sub-tropical climate in its south, where it borders lowland plains, and a Himalayan subalpine climate to the north where it meets the …
By Caroline Taylor What is a glacial lake outburst flood? Glacial Lake Outburst Floods (GLOFs) refer to the sudden release of meltwater and sediment from a dammed lake1. Across the globe there are many types of glacial lake dams, including moraine-dams, ice-dams, bedrock-dams, and landslide-dams 2, all of which can produce GLOFs. Why are …
Increasing risk of Glacial Lake Outburst Floods (GLOFs) Read More »
Varved sediments (varves) refers to the annually laminated sediment deposited at the base of some lakes, or marine settings[1]. These sediments are incredible resources for researchers who look into changes in climate and environmental systems in the past. This is because they can record changes to these systems at an annual, or even seasonal resolution. …
This article is based on the followed accepted and published article on Juneau Icefield geomorphology and glaciology: Davies et al., 20221, which has been published in final form at: https://doi.org/10.1002/esp.5383 Article authors: Bethan Davies, Jacob Bendle, Jonathan Carrivick, Robert McNabb, Christopher McNeil, Mauri Pelto, Seth Campbell, Tom Holt, Jeremy Ely, Bradley Markle In this article, …
Plateau Icefields: Glacial geomorphology of Juneau Icefield Read More »
This article is based on the followed accepted and published article about Juneau Icefield: Davies et al., 20221, which has been published in final form at: https://doi.org/10.1002/esp.5383. All data produced in this work, including shapefiles and an A0 poster of the icefield, are available as supplementary data with the final published version. This article is …
Glaciofluvial landforms are landforms created by the action of glacier meltwater. They can be erosional, or depositional landforms, and can form underneath, on top of, in front of, and around the edges of former glaciers.
What are supraglacial lakes? Supraglacial lakes form on the surface of glaciers. Meltwater accumulates in depressions or hollows on the ice surface. We think of the East Antarctic Ice Sheet as being very cold and dry, with temperatures well below 0°C, but in some places, surface melting does occur in the summer melt season. In …
Antarctic supraglacial lakes and ice-shelf collapse Read More »
