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Journals
Geosciences
Special Issues
Isotope Hydrological Tools to Understand Groundwater–Surfacewater Interactions
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Isotope Hydrological Tools to Understand Groundwater–Surfacewater Interactions

A special issue of Geosciences (ISSN 2076-3263). This special issue belongs to the section "Hydrogeology".

Deadline for manuscript submissions: closed (30 September 2019)

Special Issue Editor

Dr. Anna-Kaisa Ronkanen

E-Mail Website
Guest Editor
Water Resources and Environmental Engineering, University of Oulu, P.O. Box 4300, 90014 Oulu, Finland
Interests: environmental tracers; peatland hydrology; groundwater–surfacewater interactions; stable isotopes of water

Special Issue Information

Dear Colleagues, 

This Special Issue of Geosciences aims to provide valuable insight into isotopes and environmental tracer tools, techniques, and applications to study catchment scale hydrology by gathering high-quality original research articles, reviews, and technical notes.

Due to continuous deterioration of water quality in surface and groundwater storages and an increase in different types of pollution problems, there is a clear need to understand how human activities and different catchment properties create a continuum and end up causing specific problems in water quality or amount of water on a catchment scale. Isotopes and other environmental tracers offer valuable and environmentally friendly tools to identify water origin, water-flow processes, and the mixing of different water fractions, not only on a catchment scale but also globally. These tools are frequently used for decades, but recently analysis techniques have been developed, so that smaller concentrations can be detected. This has further produced new possibilities to apply some environmental tracers (such as 17O) that have not been previously used that often. Furthermore, continuous monitoring methods (e.g., for stable isotopes of water) are now available, enabling one to study the dynamic behaviour of flow and mixing processes that have not been fully discovered by isotope techniques so far. Especially, groundwater–surface water interactions have dynamic characteristics (producing seasonal and annual fluctuation) that are still quite poorly understood.

This is why I would like to invite you to submit articles about your recent work, experimental research, or case studies, with respect to the above and/or the following topics:

  • Changes in groundwater–surface water interactions caused by human activities
  • Access of vulnerability of groundwater–surface water interactions by isotope methods
  • Understanding runoff-rainfall processes applying isotopes and environmental tracers
  • Hydrological continuum and water quality problems on a catchment scale
  • Isotope and tracer methods and tools to study pollution transportation

I also encourage you to send me a short abstract outlining the purpose of the research and the principal results obtained, in order to verify at an early stage if the contribution you intend to submit fits with the objectives of the Special Issue.

Dr. Anna-Kaisa Ronkanen
Guest Editor

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. Geosciences is an international peer-reviewed open access monthly 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 1800 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

  • catchment scale hydrology
  • environmental tracers
  • groundwater–surface water interactions
  • climate change
  • pollutant transportation

Published Papers (1 paper)

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Research

16 pages, 20655 KiB  
Article
An Evaluation of Catchment Transit Time Model Parameters: A Comparative Study between Two Stable Isotopes of Water
by Samuel Bansah, Samuel Ato Andam-Akorful, Jonathan Quaye-Ballard, Matthew Coffie Wilson, Solomon Senyo Gidigasu and Geophrey K. Anornu
Geosciences 2019, 9(7), 318; https://doi.org/10.3390/geosciences9070318 - 19 Jul 2019
Cited by 2 | Viewed by 2682
Abstract
Using δ18O and δ2H in mean transit time (MTT) modeling can ensure the verifiability of results across catchments. The main objectives of this study were to (i) evaluate the δ18O- and δ2H-based behavioral transit time [...] Read more.
Using δ18O and δ2H in mean transit time (MTT) modeling can ensure the verifiability of results across catchments. The main objectives of this study were to (i) evaluate the δ18O- and δ2H-based behavioral transit time distributions and (ii) assess if δ18O and δ2H-based MTTs can lead to similar conclusions about catchment hydrologic functioning. A volume weighted δ18O (or δ2H) time series of sampled precipitation was used as an input variable in a 50,000 Monte Carlo (MC) time-based convolution modeling process. An observed streamflow δ18O (or δ2H) time series was used to calibrate the model to obtain the simulated time series of δ18O (or δ2H) of the streamflow within a nested system of eight Prairie catchments in Canada. The model efficiency was assessed via a generalized likelihood uncertainty estimation by setting a minimum Nash–Sutcliffe Efficiency threshold of 0.3 for behavioral parameter sets. Results show that the percentage of behavioral parameter sets across both tracers were lower than 50 at the majority of the studied outlets; a phenomenon hypothesized to have resulted from the number of MC runs. Tracer-based verifiability of results could be achieved within five of the eight studied outlets during the model process. The flow process in those five outlets were mainly of a shallow subsurface flow as opposed to the other three outlets, which experienced other additional flow dynamics. The potential impacts of this study on the integrated use of δ18O and δ2H in catchment water storage and release dynamics must be further investigated in multiple catchments within various hydro-physiographic settings across the world. Full article
(This article belongs to the Special Issue Isotope Hydrological Tools to Understand Groundwater–Surfacewater Interactions)
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