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

Author

Listed:
  • C. R. Beel

    (Queen’s University
    Water Management and Monitoring, Environment and Natural Resources, Government of Northwest Territories)

  • J. K. Heslop

    (Queen’s University
    Section 3.7 Geomicrobiology, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences)

  • J. F. Orwin

    (Queen’s University
    Resource Stewardship Division, Alberta Environment and Parks, Government of Alberta)

  • 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)

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 (

Suggested Citation

  • C. R. Beel & J. K. Heslop & J. F. Orwin & M. A. Pope & A. J. Schevers & J. K. Y. Hung & M. J. Lafrenière & S. F. Lamoureux, 2021. "Emerging dominance of summer rainfall driving High Arctic terrestrial-aquatic connectivity," Nature Communications, Nature, vol. 12(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-21759-3
    DOI: 10.1038/s41467-021-21759-3
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    Cited by:

    1. Jinlong Li & Genxu Wang & Chunlin Song & Shouqin Sun & Jiapei Ma & Ying Wang & Linmao Guo & Dongfeng Li, 2024. "Recent intensified erosion and massive sediment deposition in Tibetan Plateau rivers," Nature Communications, Nature, vol. 15(1), pages 1-12, December.
    2. J. E. Vonk & N. J. Speetjens & A. E. Poste, 2023. "Small watersheds may play a disproportionate role in arctic land-ocean fluxes," Nature Communications, Nature, vol. 14(1), pages 1-3, December.

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