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Water
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Observing and Monitoring the Subglacial Hydrological Environment in a Changing...
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Observing and Monitoring the Subglacial Hydrological Environment in a Changing Climate

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Hydrology".

Deadline for manuscript submissions: closed (1 October 2019) | Viewed by 4312

Special Issue Editors

Dr. Andrew Sole

E-Mail Website
Guest Editor
Department of Geography, University of Sheffield, Sheffield, United Kingdom
Interests: glaciology; ice sheets; greenland; glaciers and climate change; fjord oceanography
Dr. Stephen Livingstone

E-Mail Website
Guest Editor
Department of Geography, University of Sheffield, Sheffield, United Kingdom
Interests: physical geography; glaciology; Quaternary; geology
Dr. Jon Hawkings

E-Mail Website
Guest Editor
Earth, Ocean and Atmopsheric Sciences, Florida State University
Interests: Subglacial and supraglacial biogeochemical processes; Glacial nutrient production and cycling; Microbial life in extreme environments

Special Issue Information

Dear Colleagues,

Many of Earth’s ice masses have liquid water at their base. Subglacial water is generated by basal sliding of ice and melting casued by geothermal heat flux. These subglacial sources are often supplemented seasonally by surface-derived meltwater that reaches the bed via crevasses and moulins. Increased surface melting of Earth’s ice masses, as mean global temperature has risen over recent years, has led to an expansion and enhancement of water flux through the subglacial environment with important implications for the dynamic behaviour of ice masses, and thus their contribution to global sea level, as well as sediment and nutrient fluxes to fjords and coastal oceans.

Although the subglacial hydrological environment is very difficult to observe directly, new observations and models of bed topography and substrate properties, high temporal and spatial resolution satellite-derived ice velocity data, and new biogeochemical monitoring methods, have opened up novel research avenues. This Special Issue of Water calls for innovative research papers that will advance our knowledge and understanding of the subglacial hydrological environment and its broader influence under a changing climate.

Dr. Andrew Sole
Dr. Stephen Livingstone
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Subglacial hydrology
  • Glacier and ice sheet dynamics
  • Subglacial sediment dynamics
  • Glacier biogeochemistry
  • Sea level rise

Published Papers (1 paper)

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Research

22 pages, 7033 KiB  
Article
Intense Chemical Weathering at Glacial Meltwater-Dominated Hailuogou Basin in the Southeastern Tibetan Plateau
by Xiangying Li, Yongjian Ding, Qiao Liu, Yong Zhang, Tianding Han, Zhefan Jing, Zhongbo Yu, Qijiang Li and Sha Liu
Water 2019, 11(6), 1209; https://doi.org/10.3390/w11061209 - 10 Jun 2019
Cited by 20 | Viewed by 3856
Abstract
Climate warming has caused rapid shrinkage of glaciers in the Tibetan Plateau (TP), but the impact of glacier retreat on the chemical denudation rate remains largely unknown at the temperate glacial basins. The chemical weathering processes were examined at a temperate glacial basin [...] Read more.
Climate warming has caused rapid shrinkage of glaciers in the Tibetan Plateau (TP), but the impact of glacier retreat on the chemical denudation rate remains largely unknown at the temperate glacial basins. The chemical weathering processes were examined at a temperate glacial basin (HLG) in the southeastern TP based on comprehensive data from the supraglacial meltwater, proglacial river water, precipitation and groundwater over two glacier melt seasons in 2008 and 2013. The concentrations of major ions and suspended sediments in river water exhibit a pronounced seasonality and display a close relationship with river discharge, suggesting a strong hydrological control on the chemical and physical weathering processes. Runoff chemistry is dominated by carbonate weathering and sulfide oxidation. HCO3−, Ca2+, and/or SO42− are the dominant ions in meltwater, river water, precipitation and groundwater. For river water, HCO3− and Ca2+ primarily come from calcite weathering, and SO42− is mainly derived from pyrite oxidation. Both solute and sediment fluxes are positively related to river discharge (r = 0.69, p < 0.01 for sediments). The solute flux and yields are 18,095–19,435 t·year−1 and 225–241 t·km−2·year−1, and the sediment load and yields are 126,390 t·year−1 and 1570 t·km−2·year−1, respectively. The solute yields, cationic denudation rate (CDR; 2850–3108 Σ*meq+ m−2·year−1) and chemical weathering intensity (CWI; 616–711 Σ*meq+ m−3·year−1) at HLG are higher than those at most basins irrespective of the lithology, suggesting more intense weathering in the TP in comparison to other glacial basins worldwide. Full article
(This article belongs to the Special Issue Observing and Monitoring the Subglacial Hydrological Environment in a Changing Climate)
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