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Hydro-geochemical analysis of meltwater draining from Bilare Banga glacier, Western Himalaya
Department of Environmental Science, SBSR, Sharda University, Greater Noida, India.
Department of Environmental Science, SBSR, Sharda University, Greater Noida, India.
Department of Environmental Science, SBSR, Sharda University, Greater Noida, India.
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Space Technology. Sharda University, Greater Noida, India.
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2019 (English)In: Acta Geophysica, ISSN 1895-6572, E-ISSN 1895-7455, Vol. 67, no 2, p. 651-660Article in journal (Refereed) Published
Abstract [en]

The changing climate is affecting the melting process of glacier ice and snow in Himalaya and may influence the hydro-geochemistry of the glacial meltwater. This paper represents the ionic composition of discharge from Bilare Banga glacier by carrying out hydro-geochemical analysis of water samples of melting season of 2017. The pH and EC were measured on-site in field, and others parameters were examined in the laboratory. The abundance of the ions observed in meltwater has been arranged in decreasing order for cations as Ca2+ > Mg2+ > Na+ > K+ and for anions as HCO3 > SO42− > Cl > NO3, respectively. Analysis suggests that the meltwater is mostly dominated by Ca2+ and HCO3. It has been observed that the ionic concentration HCO3 is dominant and Cl is the least in the catchment. Piper plot analysis suggests that the chemical composition of the glacier discharge not only has natural origin but also has some anthropogenic input. Hydro-geochemical heterogeneity reflected the carbonate-dominated features (Ca2+–HCO3) in the catchment. The carbonate weathering was found as the regulatory factor to control the chemistry of the glacial meltwater due to the high enrichment ratio of (Ca2+ + Mg2+) against TZ+ and (Na+ + K+). In statistical approach, PCA analysis suggests that geogenic weathering dynamics in the catchment is associated with carbonate-dominant lithology.

Place, publisher, year, edition, pages
Springer, 2019. Vol. 67, no 2, p. 651-660
Keywords [en]
Bilare Banga glacier, Hydro-geochemistry, Cations, Anions, Carbonate weathering
National Category
Geochemistry Aerospace Engineering
Research subject
Atmospheric science
Identifiers
URN: urn:nbn:se:ltu:diva-72835DOI: 10.1007/s11600-019-00262-wOAI: oai:DiVA.org:ltu-72835DiVA, id: diva2:1287252
Note

Validerad;2019;Nivå 2;2019-04-12 (johcin)

Available from: 2019-02-09 Created: 2019-02-09 Last updated: 2019-04-12Bibliographically approved

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Publisher's full texthttps://link.springer.com/article/10.1007/s11600-019-00262-w?fbclid=IwAR2o0MWZy_4_EcOtXU1AEcPDix4wYSK_dSKcORWJh04NrHoRwOUGYUOxCjk

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Singh, ShaktimanBhardwaj, Anshuman

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