Emerging dominance of summer rainfall driving High Arctic terrestrial-aquatic connectivity

C. R. Beel (), J. K. Heslop, J. F. Orwin, M. A. Pope, A. J. Schevers, J. K. Y. Hung, M. J. Lafrenière and S. F. Lamoureux
Additional contact information
C. R. Beel: Queen’s University
J. K. Heslop: Queen’s University
J. F. Orwin: Queen’s University
M. A. Pope: Queen’s University
A. J. Schevers: Queen’s University
J. K. Y. Hung: Queen’s University
M. J. Lafrenière: Queen’s University
S. F. Lamoureux: Queen’s University

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract Hydrological transformations induced by climate warming are causing Arctic annual fluvial energy to shift from skewed (snowmelt-dominated) to multimodal (snowmelt- and rainfall-dominated) distributions. We integrated decade-long hydrometeorological and biogeochemical data from the High Arctic to show that shifts in the timing and magnitude of annual discharge patterns and stream power budgets are causing Arctic material transfer regimes to undergo fundamental changes. Increased late summer rainfall enhanced terrestrial-aquatic connectivity for dissolved and particulate material fluxes. Permafrost disturbances (

Date: 2021
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DOI: 10.1038/s41467-021-21759-3

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