Impacts of 1.5 and 2.0 °C Warming on Pan-Arctic River Discharge Into the Hudson Bay Complex Through 2070

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dc.contributor.authorMacDonald, Matthew
dc.contributor.authorStadnyk, Tricia
dc.contributor.authorDéry, Stephen J.
dc.contributor.authorBraun, Marco
dc.contributor.authorGustafsson, David
dc.contributor.authorIsberg, Kristina
dc.contributor.authorArheimer, Berit
dc.date.accessioned2020-08-18T06:27:26Z
dc.date.available2020-08-18T06:27:26Z
dc.date.issued2018-08-03
dc.date.submitted2020-08-18T06:27:26Zen_US
dc.description.abstractDischarge projections into the Hudson Bay Complex to 2070 are investigated for global mean temperature warming levels of 1.5 and 2.0 °C. Median precipitation increases from 1986–2005, ranging from 2% during summer to 19% during winter, are projected to increase discharge in all seasons except summer. The rise in discharge is greatest furthest north, into Foxe Basin, Ungava Bay, and Hudson Strait, exceeding 10% above historical annual means. A 2.0 °C warming results in higher discharge than 1.5 °C warming owing to greater precipitation (e.g., 6.5% greater spring discharge increase); however, summer discharge for 2.0 °C warming is lower due to enhanced evaporation and lower precipitation increase from historical (4.0% lower summer discharge increase). Extreme daily high flows are projected to be greater than historical, more so for 2.0 °C warming than 1.5 °C warming, and this is greatest in the eastern and northern regions. These projections suggest continued increasing river discharge into pan-Arctic coastal oceans.en_US
dc.description.sponsorshipManitoba Hydro and the Natural Sciences and Engineering Research Council of Canada through the BaySys projecten_US
dc.identifier.citationMacDonald, M. K., Stadnyk, T. A., Déry, S. J., Braun, M., Gustafsson, D., Isberg, K., Arheimer, B., 2018. Impacts of 1.5 and 2.0 °C warming on pan-Arctic river discharge into the Hudson Bay Complex through 2070. Geophys. Res. Lett. 45: 7561–7570. https://doi.org/10.1029/2018GL079147en_US
dc.identifier.doi10.1029/2018GL079147
dc.identifier.urihttp://hdl.handle.net/1993/34874
dc.language.isoengen_US
dc.publisherAmerican Geophysical Unionen_US
dc.rightsopen accessen_US
dc.subjectHudson Bay Complexen_US
dc.subjectglobal warmingen_US
dc.subjectdischargeen_US
dc.subjectclimate changeen_US
dc.titleImpacts of 1.5 and 2.0 °C Warming on Pan-Arctic River Discharge Into the Hudson Bay Complex Through 2070en_US
dc.typeArticleen_US
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