Radium in surface and ground water, Simpson Lagoon, Alaska, 2021 - 2022 ...

Supra-permafrost submarine groundwater discharge (SGD) in the Arctic is poorly understood, yet has the potential to increase over the coming decades due to climate change. This study uses radium (Ra) isotopes to investigate this process by constraining seasonal SGD inputs to an Arctic coastal lagoon...

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Bibliographic Details
Main Authors: Bullock, Emma, Charette, Matthew, Henderson, Paul, Cardenas, M. Bayani, McClelland, James
Format: Dataset
Language:English
Published: NSF Arctic Data Center 2023
Subjects:
Radium
Submarine Groundwater Discharge
Lagoon
Arctic
Climate change
permafrost
Alaska
Online Access:https://dx.doi.org/10.18739/a23b5w945
https://arcticdata.io/catalog/view/doi:10.18739/A23B5W945
Description
Summary:Supra-permafrost submarine groundwater discharge (SGD) in the Arctic is poorly understood, yet has the potential to increase over the coming decades due to climate change. This study uses radium (Ra) isotopes to investigate this process by constraining seasonal SGD inputs to an Arctic coastal lagoon (Simpson Lagoon, AK). Within this dataset are 224Ra, 223Ra, 228Ra, and 226Ra activities for surface water samples (lagoon, rivers) and groundwater samples across three seasons: thaw (June 2022), open water (August 2021 and July 2022), and freeze up (September/October 2022). Experimentally determined valued for Ra desorption from riverine suspended sediments and diffusive fluxes from bottom sediments are also included. ...

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